BlackRock Capital Investment Corp - Annual Report: 2013 (Form 10-K)

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-K

(Mark One)

For the fiscal year ended December 31, 2013

OR

For the transition period from                      to                     

Commission file number 814-00712

BlackRock Kelso Capital Corporation

(Exact Name of Registrant as Specified in Its Charter)

Registrant’s Telephone Number, Including Area Code: 212-810-5800

SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:

SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT: None

Indicate by check mark if the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  ¨    No  þ

Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act.    Yes  ¨    No  þ

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  þ    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ¨    No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of Registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  þ

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer or a non-accelerated filer as defined in Rule 12b-2 of the Exchange Act.

Large Accelerated Filer  ¨                    Accelerated Filer  þ                    Non-Accelerated Filer  ¨

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Securities Exchange Act of 1934).    Yes  ¨    No  þ

The aggregate market value of the Registrant’s common stock held by non-affiliates of the Registrant at June 30, 2013 (the last business day of the Registrant’s most recently completed second quarter) was $614,399,030 based upon the last sales price reported for such date on The NASDAQ Global Select Market. For purposes of this disclosure, shares of common stock beneficially owned by persons who own 5% or more of the outstanding shares of common stock and shares beneficially owned by executive officers and directors of the Registrant and members of their families have been excluded in that such persons may be deemed to be affiliates. This determination of affiliate status is not necessarily conclusive for other purposes. The Registrant has no non-voting common stock.

There were 74,520,169 shares of the Registrant’s common stock outstanding at March 5, 2014.

Documents Incorporated by Reference: Portions of the Registrant’s Proxy Statement relating to the Registrant’s 2014 Annual Meeting of Stockholders to be filed not later than 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K are incorporated by reference into Part III of this Report.

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BLACKROCK KELSO CAPITAL CORPORATION

2013 FORM 10-K ANNUAL REPORT

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PART I

General

BlackRock Kelso Capital Corporation (“BlackRock Kelso,” the “Company” or the “Registrant,” which may also be referred to as “we,” “us” or “our”) provides middle-market companies with flexible financing solutions, including senior and junior secured, unsecured and subordinated debt securities and loans, and equity securities. Our strategy is to provide capital to meet our clients’ current and future needs across this spectrum, creating long-term partnerships with growing middle-market companies.

We are an externally-managed, non-diversified closed-end management investment company. We have elected to be regulated as a business development company, or BDC, under the Investment Company Act of 1940, which we refer to as the 1940 Act. In addition, for tax purposes we intend to continue to qualify as a regulated investment company, or RIC, under the Internal Revenue Code of 1986, which we refer to as the Code. As a BDC, we are required to comply with certain regulatory requirements. See “Regulation” for discussion of BDC regulation and other regulatory considerations. We are also registered as an investment advisor under the Investment Advisers Act of 1940 which we refer to as the “Advisers Act”.

Our investment objective is to generate both current income and capital appreciation through our debt and equity investments. We invest primarily in middle-market companies and target investments throughout the capital structure that we believe provide an attractive risk-adjusted return. The term “middle-market” refers to companies with annual revenues typically between $50 million and $1 billion. Our targeted investment typically ranges between $10 million and $50 million, although the investment sizes may be more or less than the targeted range and the size of our investments may grow with our capital availability. We generally seek to invest in companies that operate in a broad variety of industries and that generate positive cash flows.

Although most of our investments are in senior and junior secured, unsecured and subordinated loans to U.S. private and certain public middle-market companies, we invest throughout the capital structure, which may include common and preferred equity, options and warrants, credit derivatives, high-yield bonds, distressed debt and other structured securities. We may from time to time invest up to 30% of our assets opportunistically in other types of investments, including securities of other public companies and foreign securities.

The senior and junior secured loans in which we invest generally have stated terms of three to ten years and the subordinated debt investments we make generally have stated terms of up to ten years, but the expected average life of such senior and junior secured loans and subordinated debt is generally between three and seven years. However, we may invest in securities of any maturity or duration. The debt that we invest in typically is not initially rated by any rating agency, but we believe that if such investments were rated, they would be below investment grade (rated lower than “Baa3” by Moody’s Investors Service, lower than “BBB-” by Fitch Ratings or lower than “BBB-” by Standard & Poor’s). We may invest without limit in debt of any rating, as well as debt that has not been rated by any nationally recognized statistical rating organization.

We were incorporated on April 13, 2005, commenced operations with private funding on July 25, 2005, and completed our initial public offering on July 2, 2007. Since the commencement of our operations, the team of investment professionals of BlackRock Kelso Capital Advisors LLC (the “Advisor” or “BlackRock Kelso Capital Advisors”), including our senior management, has evaluated more than 2,800 investment opportunities and completed 152 investments, aggregating over $3.2 billion in capital provided to middle-market companies through December 31, 2013.

During the year ended December 31, 2013, we invested approximately $533.7 million across twenty one new and several existing portfolio companies. This compares to approximately $317.1 million across six new and several existing portfolio companies for the year ended December 31, 2012. Sales, repayments and other exits of investment principal totaled $442.6 million during the year ended December 31, 2013, versus $314.8 million during the year ended December 31, 2012.

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At December 31, 2013, our net portfolio of 51 portfolio companies was invested 43% in senior secured loans, 22% in equity investments, 18% in senior secured notes, 16% in unsecured or subordinated debt securities and 1% in cash and cash equivalents. This compares to our portfolio of 47 portfolio companies which was invested 52% in senior secured loans, 18% in senior secured notes, 16% in unsecured or subordinated debt securities, 13% in equity investments and 1% in cash and cash equivalents at December 31, 2012. Our average investment by portfolio company at amortized cost, excluding investments below $5.0 million, was approximately $26.0 million at December 31, 2013. As compared to December 31, 2012 our average investment by portfolio company at amortized cost, excluding investments below $5.0 million, was approximately $26.9 million.

The weighted average yield of the debt and income producing equity securities in our portfolio at fair value was 12.1% at December 31, 2013 and 12.6% at December 31, 2012. The weighted average yields on our senior secured loans and other debt securities at fair value were 11.4% and 13.1%, respectively, at December 31, 2013, versus 11.9% and 13.6%, at December 31, 2012. The weighted average yield of the debt and income producing equity securities in our portfolio at their current cost basis was 12.0% at December 31, 2013 and 12.2% at December 31, 2012. The weighted average yields on our senior secured loans and other debt securities at their current cost basis were 11.4% and 13.0%, respectively, at December 31, 2013, versus 11.4% and 13.5%, respectively, at December 31, 2012.

BlackRock Kelso Capital Advisors

Our investment activities are managed by the Advisor. The Advisor is responsible for sourcing potential investments, conducting research on prospective investments, analyzing investment opportunities, structuring our investments, and monitoring our investments and portfolio companies on an ongoing basis. The Advisor is led by James R. Maher, Chairman and Chief Executive Officer of the Company and the Advisor, and Michael B. Lazar, Chief Operating Officer of the Company and the Advisor. They are supported by the Advisor’s team of employees, including 16 investment professionals who have extensive experience in commercial and mezzanine lending, investment banking, accounting, corporate law and private equity investing. Additionally, the Advisor has an investment committee that includes Messrs. Maher and Lazar. Senior management as well as other key personnel of the Advisor have critical industry experience and relationships that we rely on to implement our business plan.

Administration

We have entered into an administration agreement with BlackRock Financial Management, Inc. (the “Administrator”) under which the Administrator provides certain administrative services to us. For providing these services, facilities and personnel, we reimburse the Administrator for our allocable portion of overhead and other expenses incurred by the Administrator in performing its obligations under the administration agreement, including rent and our allocable portion of the cost of certain of our officers and their respective staffs.

Market opportunity

We believe that current market conditions present opportunities for investment in middle-market companies with attractive risk-adjusted returns for several reasons, including:

The current market environment may mean more favorable terms for investments in middle-market companies. We believe the tight supply of credit due to deleveraging by banks provides a promising environment in which to originate investments in middle-market companies. We believe we are able to structure investments with lower leverage multiples, higher current returns, greater opportunity for equity appreciation, better prepayment protection, and more meaningful financial covenants than are typically available on commensurate investments in large liquid market companies.

Middle-market companies have faced increasing difficulty in accessing the capital markets. While many middle-market companies were able to raise funds by raising debt in the capital markets in the past, we believe

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this approach to financing has become more difficult, as transactions have increased in size to address investors’ demands for greater liquidity in securities such as high yield bonds. In addition, we believe that many senior lenders have, in recent years, de-emphasized their service and product offerings to middle-market businesses in favor of lending to large corporate clients and managing large, liquid capital markets transactions.

There is a large pool of uninvested private equity capital likely to seek additional capital to support private investments. We believe there is a large pool of uninvested private equity capital available to middle-market companies. We expect that private equity firms will be active investors in middle-market companies and that these private equity firms will seek to supplement their equity investments with senior secured and junior loans and equity co-investments from other sources, such as us.

Middle-market companies are increasingly seeking private sources for debt and equity capital. We believe that many middle-market companies prefer to execute transactions with private capital providers such as us, rather than execute high-yield bond or equity transactions in the public markets, which may necessitate increased financial and regulatory compliance and reporting obligations.

Consolidation among commercial banks has reduced the focus on middle-market business. We believe that many senior lenders have de-emphasized their service and product offerings to middle-market companies in favor of lending to large corporate clients, managing capital markets transactions and providing other non-credit services to their customers.

Competitive advantages

We believe we possess the following competitive advantages over other capital providers to middle-market companies:

Demonstrated ability to deploy capital consistent with our investment policies. Since our inception, the Advisor has invested in excess of $3.2 billion across 152 portfolio companies through December 31, 2013. We have a portfolio yield at fair value of approximately 12.1% at December 31, 2013. In 2013, we invested approximately $533.7 million of gross assets.

Proven transaction sourcing strategy. Since the Advisor’s inception of operations, it has sourced and reviewed more than 2,800 potential investments and has a proven process through which it has invested in excess of $3.2 billion through December 31, 2013. The Advisor identifies potential investments through its dynamic transaction origination efforts. The origination efforts include calling on financial institutions such as investment banks, commercial banks, specialty finance companies and private equity firms; as well as on advisory firms, trade associations and the owners and managers of middle-market companies with whom its investment professionals and investment committee members have relationships. We expect that our ability to leverage these relationships will continue to result in the referral of investment opportunities to us and provide us with a competitive advantage.

Highly experienced investment team. Our investment activities are carried out by BlackRock Kelso Capital Advisors LLC and led by James R. Maher and Michael B. Lazar with guidance from the Advisor’s investment committee. The investment committee is comprised of Messrs. Maher and Lazar, and certain employees of BlackRock, Inc. (“BlackRock”) and certain principals of Kelso & Company, L.P. (“Kelso”). The Advisor’s investment professionals, as well as members of the investment committee, have extensive experience in fixed income, public equity and private equity investing, and possess a broad range of transaction, financial, managerial and investment skills.

Our executive officers and directors and the employees of the Advisor serve or may serve as investment advisors, officers, directors or principals of entities or investment funds that operate in the same or a related line of business as we do and/or investment funds managed by our affiliates. We note that any affiliated investment

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vehicle currently formed or formed in the future and managed or to be managed in the future by the Advisor or its affiliates may have overlapping investment objectives with our own and, accordingly, may invest in asset classes similar to those targeted by us. As a result, the Advisor or its affiliates may face conflicts in allocating investment opportunities between us and such other entities. Accordingly, we may not be given the opportunity to participate in certain investments made by investment funds managed by the Advisor or its affiliates. However, the Advisor and its affiliates will endeavor to allocate investment opportunities in a fair and equitable manner and consistent with applicable allocation procedures. In any such case, if the Advisor forms other affiliates in the future, we may co-invest on a concurrent basis with such other affiliates, subject to compliance with applicable regulations and regulatory guidance, as well as applicable allocation procedures. In certain circumstances, negotiated co-investments may be made only if we receive an order from the Securities and Exchange Commission (‘‘SEC”) permitting us to do so. Neither BlackRock nor Kelso advise us. Additionally, Kelso does not participate in the activities of the Advisor. A subsidiary of BlackRock provides certain administrative services to us.

Disciplined investment process with focus on preservation of capital. In making investment decisions, the Advisor employs a disciplined and selective review process that focuses on, among other things, a thorough analysis of the underlying issuer’s business and the performance drivers of that business, as well as an assessment of the legal and economic features of each particular investment.

Cost-effective and high quality infrastructure. We benefit from the existing infrastructure and administrative capabilities of the Administrator. For providing these services, facilities and personnel, we reimburse the Administrator for our allocable portion of overhead and other expenses incurred by the Administrator in performing its obligations under the administration agreement.

Operating and regulatory structure

Our investment activities are managed by the Advisor and supervised by our Board of Directors, a majority of whom are independent of us, the Advisor and our affiliates. The Advisor is registered under the Advisers Act. Under our investment management agreement (“Management Agreement”), we have agreed to pay the Advisor an annual base management fee based on our total assets, as well as an incentive management fee based on our performance. The Management Agreement also provides that we will reimburse the Advisor for costs and expenses incurred by the Advisor for office space rental, office equipment and utilities allocable to the Advisor under that agreement, as well as any costs and expenses incurred by the Advisor relating to any non-investment advisory, administrative or operating services provided by the Advisor to us.

Also, while we may borrow funds to make investments, our ability to use debt is limited in certain significant respects. As a BDC and a RIC for tax purposes, we are dependent on our ability to raise capital through the issuance of our common stock. RICs generally must distribute substantially all of their earnings to stockholders in order to achieve pass-through tax treatment, which prevents us from using those earnings to support operations, which may include new investments (including investments into existing portfolio companies). Further, BDCs must maintain an asset coverage ratio (the ratio of total assets less total liabilities other than indebtedness to total indebtedness) of not less than 200% in order to incur debt or issue senior securities, meaning generally that for every dollar of debt incurred or senior securities issued, we must have two dollars of assets. Our existing debt arrangements also require that we maintain an asset coverage ratio of not less than 200%, among other things.

Portfolio composition

We have built an investment portfolio that includes primarily senior and junior secured, senior and junior unsecured and subordinated loans to U.S. private middle-market companies. We invest a range of $10 million to $50 million of capital, on average, per transaction, although the investment sizes may be more or less and are expected to grow with our capital availability. Although most of our investments are in senior and junior secured,

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senior and junior unsecured and subordinated loans to U.S. private and certain public middle-market companies, we invest throughout the capital structure of these companies, which may include investing in common and preferred equity, options and warrants, credit derivatives, high-yield bonds, distressed debt and other structured securities. We generally seek to invest in companies that operate in a broad variety of industries and that generate positive cash flows. While our focus is to generate current income through these investments, we also seek capital appreciation.

We generally are not permitted to invest in any private company in which any of our affiliates holds an existing investment, except to the extent permitted by the 1940 Act. We may, however, co-invest on a concurrent basis with our affiliates, subject to compliance with applicable regulations and regulatory guidance, as well as applicable allocation procedures. We may invest, to the extent permitted by law, in the securities and instruments of other investment companies, including private funds.

At December 31, 2013, our net portfolio of 51 portfolio companies was invested 43% in senior secured loans, 22% in equity investments, 18% in senior secured notes, 16% in unsecured or subordinated debt securities and 1% in cash and cash equivalents.

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The industry composition of our portfolio, at fair market value, at December 31, 2013 and 2012 was as follows:

The geographic composition of our portfolio at fair value at December 31, 2013 was United States 93.1%, Canada 6.5% and the Cayman Islands 0.4%, and at December 31, 2012 was United States 94.7% and Canada 5.3%. The geographic composition is determined by several factors including the location of the corporate headquarters of the portfolio company.

Investment selection criteria

The Advisor chooses investments and constructs our portfolio based on the investment experience of its professionals and a detailed investment analysis for each investment opportunity. In analyzing each prospective portfolio company, the Advisor has identified several criteria it believes are important in identifying and investing in prospective portfolio companies. These criteria provide general guidelines for the Advisor’s investment decisions on our behalf, although each prospective portfolio company may fail to meet one or more of these criteria. Generally, the Advisor seeks to utilize its access to information generated by its investment professionals to identify prospective investments and to structure investments quickly and effectively. Furthermore, the Advisor seeks to identify those companies exhibiting superior fundamental risk-reward profiles and strong defensible business franchises while focusing on the relative value of the security in the company’s capital structure.

Value Orientation/Positive Cash Flow. The Advisor’s investment philosophy places a premium on fundamental analysis from an investor’s perspective and has a distinct value orientation. The Advisor focuses on companies in which it can invest at relatively low multiples of operating cash flow and that are profitable at the time of investment on an operating cash flow basis. Typically, the Advisor does not invest in start-up companies or companies having speculative business plans.

Experienced Management. The Advisor generally requires that portfolio companies have an experienced management team. The Advisor also generally requires portfolio companies to have in place proper incentives to

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induce management to succeed and to act in concert with our interests as investors, which may include having significant equity interests.

Strong Competitive Position in Industry. The Advisor seeks to invest in companies that have strong market positions within their respective markets or market niches and are well positioned to capitalize on growth opportunities. The Advisor seeks companies that demonstrate significant competitive advantages versus their competitors, which it believes should help to protect their market position and profitability.

Exit Strategy. The Advisor seeks to invest in companies that it believes will provide a steady stream of cash flow to repay loans and/or build equity value. With respect to loans and debt securities, the Advisor expects that such internally generated cash flow, leading to the payment of interest on, and the repayment of the principal of, our investments will be a key means by which we exit these investments over time. In addition, the Advisor also seeks to invest in companies whose business models and expected future cash flows offer attractive exit possibilities. These companies include candidates for strategic acquisition by other industry participants and companies that may repay our investments through an initial public offering of common stock or another capital market transaction. With respect to our equity investments, the Advisor will look to exit such investments via repurchases by the portfolio company, public offerings and sales pursuant to merger and acquisition transactions.

Liquidation Value of Assets. The prospective liquidation value of the assets, if any, collateralizing loans in which we invest is an important factor in the Advisor’s credit analysis. The Advisor emphasizes both tangible assets, such as accounts receivable, inventory, equipment and real estate, and intangible assets, such as intellectual property, customer lists, networks and databases.

Investment selection process

The Advisor selectively narrows prospective investment opportunities through a process designed to identify the most attractive opportunities. If the senior investment professionals responsible for the transaction and the Advisor’s senior management determine that an investment opportunity merits pursuit, the Advisor engages in an intensive due diligence process. This process involves extensive research into the target company, its management, its industry, its growth prospects and its ability to withstand adverse conditions.

In conducting their due diligence, the Advisor’s investment professionals use publicly available information as well as information from their extensive relationships with former and current management teams, consultants, competitors and investment bankers, among others. Though each transaction involves a somewhat different approach, the Advisor often undertakes the following due diligence steps. Initially, the investment team involved in the transaction may meet with management to get an insider’s view of the business and probe for potential weaknesses in business prospects. They may also visit headquarters and company operations, meeting top-and middle-level executives. Independently from the company, the investment team may check management’s backgrounds and references. With information provided by the company, the investment team performs a detailed review of historical financial performance and the quality of earnings. To assess both business prospects and standard practices, they may contact customers and vendors and conduct a competitive analysis, comparing the company to its main competitors on an operating, financial, market share and valuation basis. The investment team also researches the industry for historic growth trends and future prospects utilizing industry analysts at BlackRock, third party research, industry association literature and general news. Furthermore, they assess asset value and the ability of physical infrastructure and information systems to handle anticipated growth and investigate any legal risks and the viability of current financial and accounting systems. Attorneys and independent accountants as well as outside advisors, as appropriate, may conduct additional due diligence on behalf of the Advisor.

After the Advisor has identified an investment opportunity and completed due diligence, the investment team involved in the transaction prepares a written investment analysis. Senior investment professionals involved

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in the transaction review the analysis, and if they are in favor of making the potential investment, present it first to Messrs. Maher and Lazar and then, if approved by Messrs. Maher and Lazar, to the Advisor’s investment committee for guidance, under certain circumstances.

Investment structure

Once the Advisor determines that a prospective portfolio company is a suitable investment, it works with the management of that company, any intermediaries and other capital providers, including senior and junior debt security investors and equity capital providers, to structure an investment.

We invest in portfolio companies primarily in the form of senior and junior secured loans and unsecured and subordinated loans. The senior and junior secured loans generally have terms of three to ten years. We obtain security interests in the assets of our portfolio companies that serve as collateral in support of the repayment of the senior and junior secured loans. The collateral may take the form of first or second priority liens on the assets of a portfolio company.

The Advisor structures unsecured and subordinated debt securities and loans to have relatively high floating or fixed interest rates that provide us with current investment income. These debt securities and loans generally have terms of up to ten years. Such unsecured and subordinated debt securities and loans may have interest-only payments in the early years, with amortization of principal deferred to the later years of the loan. Also, some of these loans will be collateralized by a subordinate lien on some or all of the assets of the company.

In some cases, our debt investments may provide for a portion of the interest payable to be payment-in-kind (“PIK”) interest. To the extent interest is PIK, it is payable through the increase of the principal amount of the loan by the amount of the interest due on the then-outstanding principal amount of the loan. We are required to recognize PIK interest, a non-cash source of income, as taxable income, increasing the amounts we are required to distribute to stockholders to qualify for the federal income tax benefits applicable to RICs.

In the case of the senior secured and junior loans, the Advisor tailors the terms of the investment to the facts and circumstances of the transaction and the prospective portfolio company, negotiating a structure that aims to protect our rights and manage our risk while creating incentives for the portfolio company to achieve its business plan and improve its profitability. For example, in addition to seeking a senior position in the capital structure of our portfolio companies, the Advisor seeks to limit the downside potential of our investments. The Advisor may accomplish this through requiring a total return on our investment (including both interest and potential equity appreciation) that compensates us for credit risk or through incorporating call protection into the investment structure. The Advisor may also negotiate covenants in connection with our investments that protect the preservation of our capital. Such restrictions may include affirmative and negative covenants, default penalties, lien protection, change of control provisions and board rights, including either observation or participation rights.

In general, our debt investments include financial covenants and terms that require the portfolio company to reduce leverage over time, thereby enhancing its credit quality. These methods may include, among others: maintenance leverage covenants requiring a decreasing ratio of debt to cash flow; maintenance cash flow covenants requiring an increasing ratio of cash flow to interest expense and possibly other cash expenses such as capital expenditures, cash taxes and mandatory principal payments; and debt incurrence prohibitions, limiting a company’s ability to relever its balance sheet. In addition, limitations on asset sales and capital expenditures prevent a company from changing the nature of its business or capitalization without our consent.

Structurally, subordinated loans usually rank junior in priority of payment to senior debt, such as senior bank debt, and are often unsecured. As such, other creditors may rank senior to us in the event of insolvency. However, subordinated loans rank senior to common and preferred equity in a borrower’s capital structure. Due to their higher risk profile and often less restrictive covenants as compared to senior loans, subordinated loans

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generally earn higher interest yields than senior secured loans. We believe that subordinated loans offer an attractive alternative investment opportunity. In many cases investors in subordinated loans receive opportunities to invest directly in the equity securities of borrowers, and from time to time also may receive warrants to purchase equity securities.

Our debt investments may include equity features, such as warrants or options to buy a minority interest in the portfolio company. Warrants we receive with our debt may require only a nominal cost to exercise, and thus, as a portfolio company appreciates in value, we may achieve additional investment return from this equity interest. We generally seek to structure the warrants to provide provisions protecting our rights as a minority-interest holder, and we generally seek to structure puts or rights to sell such securities back to the company upon the occurrence of specified events.

Our equity investments may consist of preferred equity that pays dividends on a current basis or preferred equity that does not pay current dividends. Preferred equity generally has a preference over common equity as to distributions on liquidations and dividends. In some cases, we may acquire common equity. Our equity investments frequently are not control-oriented investments, and in many cases, we acquire equity securities as part of a group of private equity investors in which we are not the lead investor. We may also receive equity through portfolio company restructurings. Our preferred and common equity investments typically are made in conjunction with loans to these companies.

Ongoing relationship with portfolio companies

The Advisor monitors our portfolio companies on an ongoing basis. The Advisor monitors the financial trends of each portfolio company to determine if it is meeting its business plans and to assess the appropriate course of action for each company.

The Advisor has several methods of evaluating and monitoring the performance and fair values of our investments, which may include the following and other methods:

Managerial assistance

As a BDC, we offer, and must provide upon request, managerial assistance to our portfolio companies. This assistance could involve, among other things, participating in board and management meetings, consulting with and advising officers of portfolio companies and providing other organizational and financial guidance or exercising strategic or managerial influence over such companies. We may receive fees for these services. The Advisor will provide managerial assistance on our behalf to those portfolio companies that request this assistance. Employees of the Advisor have experience providing managerial assistance to private operating companies like our portfolio companies, and such assistance has tended to be related to board representation and to strategic and financing transactions. The Advisor generally will not receive any direct compensation from our portfolio companies for providing managerial assistance although it may do so from time to time.

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Investment rating system

The Advisor employs a grading system for our entire portfolio. The Advisor grades all loans on a scale of 1 to 4. This system is intended to reflect the performance of the borrower’s business, the collateral coverage of the loans and other factors considered relevant. Generally, the Advisor assigns only one loan grade to each portfolio company for all loan investments in that portfolio company; however, the Advisor will assign multiple ratings when appropriate for different investments in one portfolio company. The following is a description of the conditions associated with each investment rating:

Grade 1: Investments in portfolio companies whose performance is substantially within the Advisor’s expectations and whose risk factors are neutral to favorable to those at the time of the original investment.

Grade 2: Investments in portfolio companies whose performance is below the Advisor’s expectations and that require closer monitoring; however, no loss of investment return (interest and/or dividends) or principal is expected.

Grade 3: Investments in portfolio companies whose performance is below the Advisor’s expectations and for which risk has increased materially since origination. Some loss of investment return is expected, but no loss of principal is expected. Companies graded 3 generally will be out of compliance with debt covenants and will be unlikely to make debt repayments on their original schedule.

Grade 4: Investments in portfolio companies whose performance is materially below the Advisor’s expectations where business trends have deteriorated and risk factors have increased substantially since the original investment. Investments graded 4 are those for which some loss of principal is expected.

The Advisor monitors and, when appropriate, changes the investment ratings assigned to each investment in our portfolio. In connection with our valuation process, the Advisor and Board of Directors review these investment ratings on a quarterly basis. Our average investment rating was 1.14 at December 31, 2013 and at 1.20 at December 31, 2012. The following is a distribution of the investment ratings of our portfolio companies at December 31, 2013 and 2012:

The investment rating process begins with each portfolio company or investment being initially evaluated by the transaction team, led by a senior investment professional that is responsible for the portfolio company relationship. This evaluation generally is completed no less frequently than quarterly. At the Advisor’s weekly investment professionals’ meeting, the transaction team presents an update on the activities of any company rated below Grade 1. Each quarter, all investment professionals attend a separate investment rating meeting. At these quarterly meetings, the transaction team responsible for each portfolio investment reviews each portfolio company and suggests a rating for each investment for discussion among the investment professionals. At the conclusion of discussion, and subject to the approval of the Advisor’s chief executive officer and chief operating officer, the Advisor’s chief financial officer records the internal investment ratings for review by the Board of Directors quarterly.

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Valuation Procedures

We conduct the valuation of our assets, pursuant to which our net asset value shall be determined, consistent with U.S. generally accepted accounting principles (“GAAP”) and the 1940 Act. We value our assets on a quarterly basis. Our valuation procedures are set forth in more detail below:

Investments for which market quotations are readily available are valued at such market quotations unless they are deemed not to represent fair value. The Company obtains market quotations, when available, from an independent pricing service or one or more broker-dealers or market makers and utilizes the average of the range of bid and ask quotations.

Debt and equity securities for which market quotations are not readily available or for which market quotations are deemed not to represent fair value are valued at fair value as determined in good faith by or under the direction of the Company’s Board of Directors. Because the Company expects that there will not be a readily available market for substantially all of the investments in its portfolio, the Company expects to value substantially all of its portfolio investments at fair value as determined in good faith by or under the direction of the Board of Directors using a consistently applied valuation process in accordance with a documented valuation policy that has been reviewed and approved by the Board of Directors.

Determination of fair value involves subjective judgments and estimates. Due to the inherent uncertainty and subjectivity of determining the fair value of investments that do not have a readily available market value, the fair value of the Company’s investments may differ significantly from the values that would have been used had a readily available market value existed for such investments and may differ materially from the values that the Company may ultimately realize.

With respect to the Company’s investments for which market quotations are not readily available or for which market quotations are deemed not to represent fair value, the Board of Directors has approved a multi-step valuation process applied each quarter, as described below:

Investment management agreement

We have entered into a Management Agreement with the Advisor, under which the Advisor, subject to the overall supervision of the Board of Directors, manages our day-to-day operations, and provides us with investment advisory services. For providing these services, the Advisor receives a base management fee (the “Management Fee”) at an annual rate of 2.0% of our total assets, including any assets acquired with the proceeds of leverage, payable quarterly in arrears.

The Management Agreement became effective on June 22, 2008 and its initial term expired on June 22, 2010. Since then, our Board of Directors has approved the agreement for successive one year terms with the most recently approved term scheduled to expire on June 22, 2014, unless an additional one year term is approved by the Board.

For the years ended December 31, 2013, 2012 and 2011, the Advisor earned $21,629,665, $22,504,433 and $19,841,258, respectively, in base management fees under the Management Agreement.

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Incentive Management Fee

The Management Agreement provides that the Advisor or its affiliates may be entitled to an incentive management fee (the “Incentive Fee”) under certain circumstances. The determination of the Incentive Fee, as described in more detail below, will result in the Advisor or its affiliates receiving no Incentive Fee payments if returns to stockholders do not meet an 8.0% annualized rate of return during the applicable fee measurement period, and will result in the Advisor or its affiliates receiving less than the full amount of the Incentive Fee percentage until returns to stockholders exceed an approximate 13.3% annualized rate of return during such period. Annualized rate of return in this context is computed by reference to net asset value and does not take into account changes in the market price of the common stock.

The Advisor will be entitled to receive the Incentive Fee if our performance exceeds a “hurdle rate” during different measurement periods: trailing four quarters’ periods (which apply only to the portion of the Incentive Fee based on income) and annual periods (which apply only to the portion of the Incentive Fee based on capital gains). The “trailing four quarters’ periods” for purposes of determining the income portion of the Incentive Fee payable for the three months ended December 31, 2013 and 2012 was determined by reference to the four quarter periods ended on December 31, 2013 and 2012, respectively. The term “annual period” means the period beginning on July 1 of each calendar year and ending on June 30 of the next calendar year.

The hurdle rate for each measurement period is 2.0% multiplied by net asset values at the beginning of each calendar quarter during the measurement period, calculated after giving effect to any distributions that occurred during the measurement period. A portion of the Incentive Fee is based on our income and a portion is based on capital gains. Each portion of the Incentive Fee is described below.

Quarterly Incentive Fee Based on Income. For each trailing four quarters’ period, the Company pays the Advisor an Incentive Fee based on the amount by which (A) aggregate distributions and amounts distributable out of taxable net income (excluding any capital gain and loss) during the period less the amount, if any, by which net unrealized capital depreciation exceeds net realized capital gains during the period exceeds (B) the hurdle rate for the period. The amount of the excess of (A) over (B) described in this paragraph for each period is referred to as the excess income amount.

The portion of the Incentive Fee based on income for each period will equal 50% of the period’s excess income amount, until the cumulative Incentive Fee payments for the period equal 20% of the period’s income amount distributed or distributable to stockholders as described in clause (A) of the preceding paragraph. Thereafter, the portion of the Incentive Fee based on income for the period will equal 20% of the period’s remaining excess income amount.

For the years ended December 31, 2013, 2012 and 2011, the Advisor earned $10,889,088, $16,997,054 and $11,878,159 in Incentive Fees based on income, respectively.

Annual Incentive Fee Based on Capital Gains. The portion of the Incentive Fee based on capital gains is calculated and paid on an annual basis beginning on July 1, 2007, the first day of the calendar quarter in which the Public Market Event occurred and each annual period thereafter, ending on June 30 of the next calendar year. For each annual period, the Company pays the Advisor an Incentive Fee based on the amount by which (A) net realized capital gains, if any, to the extent they exceed gross unrealized capital depreciation, if any, occurring during the period exceeds (B) the amount, if any, by which the period’s hurdle rate exceeds the amount of income used in the determination of the Incentive Fee based on income for the period. The amount of the excess of (A) over (B) described in this paragraph is referred to as the excess gain amount.

The portion of the Incentive Fee based on capital gains for each period will equal 50% of the period’s excess gain amount, until such payments equal 20% of the period’s capital gain amount distributed or distributable to stockholders. Thereafter, the portion of the Incentive Fee based on capital gains for the period equals an amount such that the portion of the Incentive Fee payments to the Advisor based on capital gains for the period equals

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20% of the period’s remaining excess gain amount. The result of this formula is that, if the portion of the Incentive Fee based on income for the period exceeds the period’s hurdle, then the portion of the Incentive Fee based on capital gains will be capped at 20% of the capital gain amount.

In calculating whether the portion of the Incentive Fee based on capital gains is payable with respect to any period, the Company accounts for its assets on a security-by-security basis. In addition, the Company uses the “period-to-period” method pursuant to which the portion of the Incentive Fee based on capital gains for any period is based on realized capital gains for the period reduced by realized capital losses and gross unrealized capital depreciation for the period. Based on current interpretations of Section 205(b)(3) of the Investment Advisers Act of 1940 by the SEC and its staff, the calculation of unrealized depreciation for each portfolio security over a period is based on the fair value of the security at the end of the period compared to the fair value at the beginning of the period. Incentive Fees earned in any of the periods described above are not subject to modification or repayment based upon performance in a subsequent period.

The Company is required under GAAP to accrue a hypothetical capital gains Incentive Fee based upon net realized capital gains and unrealized capital appreciation and depreciation on investments held at the end of each period. The accrual of this hypothetical capital gains incentive fee assumes all unrealized capital appreciation and depreciation is realized in order to reflect a hypothetical capital gains incentive fee that would be payable at each measurement date. If such amount is positive at the end of the period, then we record a capital gains incentive fee equal to 20% of such amount, less the amount of capital gains related incentive fees already accrued in prior periods. If the resulting amount is negative, the accrual for GAAP in a given period may result in an additional expense. There can be no assurance that such unrealized capital appreciation will be realized in the future. However, it should be noted that a fee so calculated and accrued would not be payable under the Investment Advisers Act of 1940 or the Management Agreement. Amounts actually paid will be consistent with the Advisers Act which specifically excludes consideration of unrealized capital appreciation.

The capital gains fee due to the Advisor as calculated under the Management Agreement as described above, for the years ended December 31, 2013, 2012 and 2011 was zero. In accordance with GAAP, the hypothetical incentive fee for the year ended December 31, 2013, 2012 and 2011, resulted in a capital gains incentive fee of $20,259,349, $5,494,735 and zero, respectively.

Expenses

All investment professionals and staff of the Advisor, when and to the extent engaged in providing investment advisory and management services, and the compensation and routine overhead expenses of such personnel allocable to such services, will be provided and paid for by the Advisor. We will bear all other costs and expenses of our operations and transactions, including those relating to:

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We will reimburse the Advisor for costs and expenses incurred by the Advisor for office space rental, office equipment and utilities allocable to the Advisor under the Management Agreement, as well as any costs and expenses incurred by the Advisor relating to any non-investment advisory, administrative or operating services provided by the Advisor to us. For the years ended December 31, 2013, 2012 and 2011, we incurred $2,066,737, $1,991,416 and $1,779,734, respectively, for such investment advisor expenses under the Management Agreement.

From time to time, the Advisor may pay amounts owed by us to third party providers of goods or services. We will subsequently reimburse the Advisor for such amounts paid on our behalf. Reimbursements to the Advisor for the years ended December 31, 2013, 2012 and 2011, were $2,808,014, $3,107,677 and $3,046,228, respectively.

Indemnification

The Management Agreement provides that in the absence of willful misfeasance, bad faith, gross negligence or reckless disregard of its obligations thereunder, the Advisor is not liable to us or any of our stockholders for any act or omission by it or its employees in the supervision or management of our investment activities or for any loss sustained by us or our stockholders, and provides for indemnification by us of its members, directors, officers, employees, agents and control persons for liabilities incurred by it in connection with their services to us, subject to certain limitations and conditions.

Duration and termination

The Management Agreement will continue in effect until June 22, 2014, and if not sooner terminated, will continue in effect for successive periods of twelve months thereafter, provided that each continuance is specifically approved at least annually by both (1) the vote of a majority of our Board of Directors or the vote of a majority of our outstanding voting securities and (2) the vote of a majority of the Board of Directors who are not parties to the Management Agreement or interested persons (as such term is defined in the 1940 Act) of any such party, cast in person at a meeting called for the purpose of voting on such approval. We may terminate the Management Agreement as a whole at any time, without the payment of any penalty, upon the vote of a majority of our Board of Directors or a majority of our outstanding voting securities or by the Advisor, on 60 days’ written notice by either party to the other which can be waived by the non-terminating party. The Management Agreement will terminate automatically in the event of its assignment.

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Organization of the Advisor

The Advisor is organized as a Delaware limited liability company. The Advisor is registered as an investment advisor with the SEC under the Advisers Act. Its principal executive offices are located at 40 East 52^nd Street, New York, New York. James R. Maher and Michael B. Lazar, the managing members of the Advisor, are the control persons of the Advisor.

Administration agreement

We have entered into an administration agreement with the Administrator, a subsidiary of BlackRock, under which the Administrator provides certain administrative services to us. In payment for these services, facilities and personnel, we reimburse the Administrator for our allocable portion of overhead and other expenses incurred by the Administrator in performing its obligations under the administration agreement, including rent and our allocable portion of the cost of certain of our officers and their respective staffs.

For the years ended December 31, 2013, 2012 and 2011, we incurred $574,895, $322,013 and $968,721, respectively, for administrative services expenses payable to the Administrator under the administration agreement.

License agreements

We have entered into a license agreement with BlackRock and the Advisor pursuant to which BlackRock has agreed to grant to the Advisor, and the Advisor has agreed to grant to us, a non-exclusive, royalty-free license to use the name “BlackRock.” In addition, we have entered into a license agreement with Michael B. Lazar, our Chief Operating Officer, and the Advisor pursuant to which Mr. Lazar has agreed to grant to the Advisor, and the Advisor has agreed to grant to us, a non-exclusive, royalty-free license to use the name “Kelso.” Mr. Lazar obtained this limited right to license the name “Kelso” under an agreement with Kelso.

Competition

A number of entities compete with us to make the types of investments that we make. We compete with other BDCs, public and private funds, commercial and investment banks, CLO funds, commercial financing companies, insurance companies, high yield investors and, to the extent they provide an alternative form of financing, private equity funds. Additionally, because competition for investment opportunities generally has increased among alternative investment vehicles, such as hedge funds, those entities have begun to invest in areas they have not traditionally invested in, including investments in middle-market companies. As a result of these new entrants, competition for investment opportunities at middle-market companies has intensified. Many of our existing and potential competitors are substantially larger and have considerably greater financial, technical and marketing resources than we do. For example, some competitors may have a lower cost of funds and access to funding sources that are not available to us. In addition, some competitors may have higher risk tolerances or different risk assessments, which could allow them to consider a wider variety of investments and establish more relationships than us. Furthermore, many of our competitors are not subject to the regulatory restrictions that the 1940 Act imposes on us as a BDC or the restrictions that the Code imposes on us as a RIC.

Leverage

On June 7, 2013, the Company entered into a Senior Secured Term Loan Credit Agreement (the “Term Loan”) which has a principal amount of $10,000,000. The Term Loan has a stated maturity date of May 31, 2018. The interest rate applicable to borrowings thereunder is generally LIBOR plus an applicable margin of 3.75%.

On March 13, 2013, the Company entered into an Amended and Restated Senior Secured Revolving Credit Facility (the “Credit Facility”) which has an initial aggregate principal amount of up to $350,000,000 and canceled the prior credit facility and the related term loan that were outstanding at December 31, 2012. The

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Credit Facility has a stated maturity date of March 13, 2017. The interest rate applicable to borrowings thereunder is generally LIBOR plus an applicable margin of 2.50%. The Credit Facility’s commitment may increase in size, under certain circumstances, up to a total of $750,000,000. The Credit Facility contains customary affirmative and negative covenants, including the maintenance of a minimum stockholders’ equity, the maintenance of a ratio of not less than 200% of total assets (less total liabilities other than indebtedness) to total indebtedness, and restrictions on certain payments and issuance of debt. In addition, borrowings under the Credit Facility (and the incurrence of certain other permitted debt) are subject to compliance with a borrowing base that applies different advance rates to different types of assets in the Company’s portfolio. December 31, 2013, we were in compliance with all financial and operational covenants required by the Credit Facility. We had $179,000,000 of indebtedness under the Credit Facility outstanding at December 31, 2013.

On February 19, 2013 we closed a private offering of $100,000,000 in aggregate principal amount of 5.50% unsecured convertible senior notes due 2018 (the “Convertible Notes”). The initial purchasers of the Convertible Notes fully exercised their overallotment option and purchased an additional $15,000,000 in aggregate principal amount of the Convertible Notes. The closing of the overallotment option took place on March 4, 2013. With the exercise of the overallotment option, a total of $115,000,000 in aggregate principal amount of the Convertible Notes have been sold. Our net proceeds from the offering, including the exercise of the overallotment option, were approximately $111,300,000. The Convertible Notes were only offered to qualified institutional buyers as defined in the Securities Act of 1933, as amended (the “Securities Act”) pursuant to Rule 144A under the Securities Act.

The Convertible Notes are unsecured and bear interest at a rate of 5.50% per year, payable semi-annually in arrears. In certain circumstances and during certain periods, the Convertible Notes are convertible into cash, shares of our common stock or a combination of cash and shares of our common stock, at our election, at an initial conversion rate of 86.0585 shares of common stock per $1,000 principal amount of the Convertible Notes, which is equivalent to an initial conversion price of approximately $11.62 per share of our common stock, subject to defined anti-dilution adjustments. We do not have the right to redeem the Convertible Notes prior to maturity. The Convertible Notes mature on February 15, 2018, unless repurchased or converted in accordance with their terms prior to such date.

On January 18, 2011, we closed a private placement issuance of $158,000,000 in aggregate principal amount of five-year, senior secured notes with a fixed interest rate of 6.50% and a maturity date of January 18, 2016 and $17,000,000 in aggregate principal amount of seven-year senior secured notes with a fixed interest rate of 6.60% and a maturity date of January 18, 2018, (collectively, the “Senior Secured Notes”). Interest on the Senior Secured Notes is due semi-annually on January 18 and July 18. The proceeds from the issuance of the Senior Secured Notes were used to fund new portfolio investments, reduce outstanding borrowings under the Credit Facility and for general corporate purposes.

Staffing

Services necessary for our business are provided by individuals who are employees of the Advisor or the Administrator and its affiliates, pursuant to the terms of the Management Agreement and the administration agreement. Each of our executive officers is an employee of the Advisor or the Administrator and its affiliates. Our executive officers are also executive officers of the Advisor. Our day-to-day investment operations are managed by the Advisor. The Advisor currently has 16 investment professionals who focus on origination and transaction development and monitoring of our investments. We reimburse the Advisor for costs and expenses incurred by the Advisor for office space rental, office equipment and utilities allocable to the Advisor under the Management Agreement, as well as any costs and expenses incurred by the Advisor relating to any non-investment advisory, administrative or operating services provided by the Advisor to us. In addition, we reimburse the Administrator for our allocable portion of expenses it incurs in performing its obligations under the administration agreement, including rent and our allocable portion of the cost of certain of our officers and their respective staffs.

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Regulation

We are a BDC under the 1940 Act. The 1940 Act contains prohibitions and restrictions relating to transactions between BDCs and their affiliates (including any investment advisors or sub-advisors), principal underwriters and affiliates of those affiliates or underwriters and requires that a majority of the directors be persons other than “interested persons,” as that term is defined in the 1940 Act. In addition, the 1940 Act provides that we may not change the nature of our business so as to cease to be, or to withdraw our election as, a BDC unless that change is approved by a majority of our outstanding voting securities.

We may invest up to 100% of our assets in securities acquired directly from issuers in privately negotiated transactions. With respect to such securities, we may, for the purpose of public resale, be deemed an “underwriter” as that term is defined in the Securities Act. We may purchase or otherwise receive warrants to purchase the common stock of our portfolio companies in connection with acquisition financing or other investment. Similarly, in connection with an acquisition, we may acquire rights to require the issuers of acquired securities or their affiliates to repurchase them under certain circumstances. We also do not intend to acquire securities issued by any investment company that exceed the limits imposed by the 1940 Act. Under these limits, except for registered money market funds we generally cannot acquire more than 3% of the voting stock of any registered investment company, invest more than 5% of the value of our total assets in the securities of one registered investment company or invest more than 10% of the value of our total assets in the securities of registered investment companies in the aggregate. With regard to that portion of our portfolio invested in securities issued by investment companies, it should be noted that such investments might subject our stockholders to additional expenses. None of these are fundamental policies and they may be changed without stockholder approval.

Sarbanes-Oxley Act of 2002

The Sarbanes-Oxley Act of 2002 (the “Sarbanes-Oxley Act”) imposes a wide variety of regulatory requirements on publicly-held companies and their insiders. We have adopted procedures to comply with the Sarbanes-Oxley Act and the regulations promulgated thereunder. The Sarbanes-Oxley Act requires us to review our policies and procedures to determine whether we comply with the Sarbanes-Oxley Act and such regulations. We will continue to monitor our compliance with all regulations that are adopted under the Sarbanes-Oxley Act and will take actions necessary to ensure that we are in compliance therewith.

The NASDAQ Global Select Market corporate governance regulations

The NASDAQ Global Select Market has adopted corporate governance regulations with which listed companies must comply. We believe we are in compliance with such corporate governance listing standards. We will continue to monitor our compliance with all future listing standards and will take actions necessary to ensure that we are in compliance therewith.

Privacy principles

We are committed to maintaining the privacy of stockholders and to safeguarding our nonpublic personal information. The following information is provided to help you understand what personal information we collect, how we protect that information and why, in certain cases, we may share information with select other parties.

Generally, we do not receive any nonpublic personal information relating to our stockholders, although certain nonpublic personal information of our stockholders may become available to us. We do not disclose any nonpublic personal information about our stockholders or former stockholders to anyone, except as permitted by law or as is necessary in order to service stockholder accounts (for example, to a transfer agent or third party administrator).

We restrict access to nonpublic personal information about our stockholders to the Advisor’s employees with a legitimate business need for the information. We maintain physical, electronic and procedural safeguards designed to protect the nonpublic personal information of our stockholders.

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Available Information

We file with or submit to the SEC annual, quarterly and current periodic reports, proxy statements and other information meeting the informational requirements of the Securities Exchange Act of 1934 (the “Exchange Act”). This information is available free of charge by calling us at (212) 810-5800 or on our website at www.blackrockkelso.com. The information on our website is not deemed incorporated by reference in this Annual Report. You also may inspect and copy these reports, proxy statements and other information, as well as the Annual Report and related exhibits and schedules, at the Public Reference Room of the SEC at 100 F Street, NE, Washington, D.C. 20549. You may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC maintains an Internet site that contains reports, proxy and information statements and other information filed electronically by us with the SEC which are available on the SEC’s Internet site at www.sec.gov. Copies of these reports, proxy and information statements and other information may be obtained, after paying a duplicating fee, by electronic request at the following e-mail address: publicinfo@sec.gov, or by writing the SEC’s Public Reference Room, 100 F Street, NE, Washington, D.C. 20549.

You should carefully consider these risk factors, together with all of the other information included in this Annual Report on Form 10-K, including our consolidated financial statements and the related notes thereto, before making a decision to purchase our common stock. The risks set out below are not the only risks we face. If any of the following events occur, our business, financial condition and results of operations could be materially adversely affected. In such case, our net asset value and the trading price of our common stock could decline, and you may lose all or part of your investment in the Company.

Risks Related to Our Business

We may be unable to achieve our investment objective if we are unable to manage our investments effectively.

Our ability to achieve our investment objective depends on our ability to manage our business, which depends, in turn, on the ability of the Advisor to identify, invest in and monitor companies that meet our investment criteria. Accomplishing this result is largely a function of the Advisor’s investment process and, in conjunction with the Administrator, its ability to provide competent, attentive and efficient services to us. Our executive officers and many of the members of the Advisor’s investment committee have substantial responsibilities to other clients in addition to their activities and responsibilities on our behalf. The investment professionals dedicated to us may also be required to provide managerial assistance to our portfolio companies. These demands on their time may distract them or slow our rate of investment. Any failure to manage our business effectively could have a material adverse effect on our business, financial condition and results of operations.

We operate in a highly competitive market for investment opportunities.

A number of entities compete with us to make the types of investments that we make. We compete with other BDCs, public and private funds, commercial and investment banks, CLO funds, commercial financing companies, insurance companies, high yield investors, hedge funds and to the extent they provide an alternative form of financing, private equity funds. Many of our competitors are substantially larger and have considerably greater financial, technical and marketing resources than we do. Some competitors may have a lower cost of funds and access to funding sources that are not available to us. In addition, some of our competitors may have higher risk tolerances or different risk assessments, which could allow them to consider a wider variety of investments and establish more relationships than us. Furthermore, many of our competitors are not subject to the regulatory restrictions that the 1940 Act imposes on us as a BDC and that the Code imposes on us as a RIC. We cannot assure you that the competitive pressures we face will not have a material adverse effect on our business, financial condition and results of operations. Also, as a result of this competition, we may not be able to pursue attractive investment opportunities from time to time. We do not seek to compete primarily based on the interest rates we offer and we believe that some of our competitors may

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make loans with interest rates that are comparable to or lower than the rates we offer. Rather, we compete with our competitors based on our existing investment platform, seasoned investment professionals, experience and focus on middle-market companies, disciplined investment philosophy, extensive industry focus and flexible transaction structuring.

We may lose investment opportunities if we do not match our competitors’ pricing, terms and structure. If we match our competitors’ pricing, terms and structure, we may experience decreased net interest income and increased risk of credit loss. As a result of operating in such a competitive environment, we may make investments that are on less favorable terms than what we may have originally anticipated, which may impact our return on these investments.

We are dependent upon senior management personnel of our investment advisor for our future success, and if our investment advisor is unable to hire and retain qualified personnel or if our investment advisor loses any member of its senior management team, our ability to achieve our investment objective could be significantly harmed.

We depend on the members of senior management of the Advisor, particularly its Chairman and Chief Executive Officer, James R. Maher, and its Chief Operating Officer, Michael B. Lazar, as well as other key personnel for the identification, final selection, structuring, closing and monitoring of our investments. These employees of the Advisor have critical industry experience and relationships that we rely on to implement our business plan. Our future success depends on the continued service of our Advisor’s senior management team. The departure of any of the members of our Advisor’s senior management or a significant number of the members of its investment team could have a material adverse effect on our ability to achieve our investment objective as well as our business, financial condition or results of operation. As a result, we may not be able to operate our business as we expect, and our ability to compete could be harmed, which could cause our operating results to suffer. There also could be no assurance the Advisor would replicate its historical success. In addition, we can offer no assurance that BlackRock Kelso Capital Advisors LLC will remain our investment advisor, or that BlackRock Financial Management, Inc. will remain our administrator.

Our investment adviser has the right to resign on 60 days’ notice, and we may not be able to find a suitable replacement within that time, resulting in a disruption in our operations that could adversely affect our business, financial condition and results of operations.

Our investment adviser has the right, under our Management Agreement, to resign at any time upon not less than 60 days’ written notice, whether we have found a replacement or not. If our investment adviser resigns, we may not be able to find a new investment adviser or hire internal management with similar expertise and ability to provide the same or equivalent services on acceptable terms within 60 days, or at all. If we are unable to do so quickly, our operations are likely to experience a disruption, our business, financial condition and results of operations as well as our ability to pay distributions are likely to be adversely affected and the market price of our shares may decline. In addition, the coordination of our internal management and investment activities is likely to suffer if we are unable to identify and reach an agreement with a single institution or group of executives having the expertise possessed by our investment adviser and its affiliates. Even if we are able to retain comparable management, whether internal or external, the integration of such management and their lack of familiarity with our investment objective may result in additional costs and time delays that may adversely affect our business, financial condition and results of operations.

Capital markets may experience periods of disruption and instability. Such market conditions may materially and adversely affected debt and equity capital markets in the United States and abroad, which may have a negative impact on our business and operations.

From time to time, capital markets may experience periods of disruption and instability. For example, between 2007 and 2009, the global capital markets experienced an extended period of disruption as evidenced by a lack of

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liquidity in the debt capital markets, write-offs in the financial services sector, the re-pricing of credit risk and the failure of certain major financial institutions. Despite actions of the United States’ federal government and foreign governments, these events contributed to worsening general economic conditions that materially and adversely impacted the broader financial and credit markets and reduced the availability of debt and equity capital for the market as a whole and financial services firms in particular. While the adverse effects of these conditions have abated to a degree, global financial markets experienced significant volatility following the downgrade by Standard & Poor’s on August 5, 2011 of the long-term credit rating of U.S. Treasury debt from AAA to AA+. During such market disruptions, we may have difficulty raising debt or equity capital especially as a result of regulatory constraints. There can be no assurance that adverse market conditions will not repeat themselves or worsen in the future.

Market conditions may in the future make it difficult to extend the maturity of or refinance our existing indebtedness and any failure to do so could have a material adverse effect on our business. The illiquidity of our investments may make it difficult for us to sell such investments if required. As a result, we may realize significantly less than the value at which we have recorded our investments. In addition, significant changes in the capital markets, including the disruption and volatility, have had, and may in the future have, a negative effect on the valuations of our investments and on the potential for liquidity events involving our investments. An inability to raise capital, and any required sale of our investments for liquidity purposes, could have a material adverse impact on our business, financial condition and results of operations.

Price declines and illiquidity in the corporate debt markets have adversely affected, and may in the future adversely affect, the fair value of our portfolio investments, reducing our net asset value through increased net unrealized depreciation.

As a BDC, we are required to carry our investments at market value or, if no market value is ascertainable, at fair value as determined in good faith by or under the direction of our Board of Directors. Decreases in the market values or fair values of our investments are recorded as unrealized depreciation, which reduces our net asset value. Depending on market conditions, we could incur substantial realized losses and may suffer additional unrealized losses in future periods, which could have a material adverse impact on our business, financial condition and results of operations.

The recent downgrade of the U.S. credit rating and uncertainty about the financial stability of several countries in the European Union (EU) could have a significant adverse effect on our business, results of operations and financial condition.

Due to the current federal budget deficit concerns, S&P downgraded the federal government’s credit rating from AAA to AA+ for the first time in history on August 5, 2011. This downgrade could lead to subsequent downgrades by S&P, as well as to downgrades by the other two major credit rating agencies, Moody’s and Fitch Ratings. These developments and the government’s credit concerns in general, could cause interest rates and borrowing costs to rise, which may negatively impact both the perception of credit risk associated with our debt portfolio and our ability to access the debt markets on favorable terms. In addition, a decreased credit rating could create broader financial turmoil and uncertainty, which may weigh heavily on our stock price and our financial performance.

In 2010, a financial crisis emerged in Europe, triggered by high budget deficits and rising direct and contingent sovereign debt in Greece, Ireland, Italy, Portugal and Spain, which created concerns about the ability of these EU “peripheral nations” to continue to service their sovereign debt obligations. Despite assistance packages to Greece, Ireland and Portugal, the creation of a joint EU-IMF European Financial Stability Facility in May 2010, and a recently announced plan to expand financial assistance to Greece, uncertainty over the outcome of the EU governments’ financial support programs and worries about sovereign finances persist. Risks and ongoing concerns about the debt crisis in Europe could have a detrimental impact on the global economic recovery, sovereign and non-sovereign debt in these countries and the financial condition of European financial institutions. Market and economic disruptions have affected, and may continue to affect, consumer confidence

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levels and spending, personal bankruptcy rates, levels of incurrence and default on consumer debt and home prices, among other factors. There can be no assurance that the market disruptions in Europe, including the increased cost of funding for certain governments and financial institutions, will not spread, nor can there be any assurance that future assistance packages will be available or, even if provided, will be sufficient to stabilize the affected countries and markets in Europe or elsewhere. To the extent uncertainty regarding the economic recovery continues to negatively impact consumer confidence and consumer credit factors, our business and results of operations could be significantly and adversely affected.

On December 18, 2013, the Federal Reserve announced that it would scale back its bond-buying program, or quantitative easing, which is designed to stimulate the economy and expand the Federal Reserve’s holdings of long-term securities until key economic indicators, such as the unemployment rate, show signs of improvement. The Federal Reserve signaled it would reduce its purchases of long-term Treasury bonds and would scale back its purchases of mortgage-backed securities. It is unclear what effect, if any, the incremental reduction in the rate of the Federal Reserve’s monthly purchases will have on the economy, market interest rates or the value of our investments. However, it is possible that absent continued quantitative easing by the Federal Reserve, these developments, along with the United States government’s federal debt ceiling issues and the European sovereign debt crisis, could cause interest rates and borrowing costs to rise, which may negatively affect the economy, including our ability and the ability of our portfolio companies to access the debt markets on favorable terms.

Rising interest rates may adversely affect the value of our portfolio investments which could have an adverse effect on our business, financial condition and results of operations.

We invest a significant portion of our assets in dividend and interest paying securities, including debt investments which bear interest based on floating rates. Changes in market interest rates or economic conditions, including the Federal Reserve’s decision in December 2013 to taper its quantitative easing policy, or a rising interest rate environment, may affect the value and/or liquidity of such investments. Interest rate risk is the risk that prices of dividend and interest paying securities will fall as interest rates rise. The value of our investments may be subject to a greater risk of rising interest rates due to the current period of historically low rates.

In addition, increases in interest rates may increase the interest expense of our portfolio companies, particularly those with outstanding floating rate debt securities. Such interest rate increases could adversely affect our portfolio companies’ transaction and development activity, financial condition, results of operation, cash flow, ability to pay principal and interest on outstanding debt obligations and ability to make distributions to stockholders.

In addition to regulatory restrictions that restrict our ability to raise capital, our debt arrangements contain various covenants which, if not complied with, could accelerate repayment of our debt, thereby materially and adversely affecting our liquidity, financial condition and results of operations.

The agreements governing our Credit Facility and Senior Secured Notes require us to comply with certain financial and operational covenants. These covenants include:

As of December 31, 2013, we were in compliance with all applicable covenants for our outstanding borrowings. However, our continued compliance with these covenants depends on many factors, some of which are beyond our control. Accordingly, there are no assurances that we will continue to comply with the covenants in our debt arrangements. Failure to comply with these covenants would result in a default under these

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arrangements which, if we were unable to obtain a waiver from the lenders thereunder, could result in an acceleration of repayments on our debt and thereby have a material adverse impact on our business, financial condition and results of operations.

The disposition of our investments may result in contingent liabilities.

Most of our investments will involve private securities. In connection with the disposition of an investment in private securities, we may be required to make representations about the business and financial affairs of the portfolio company typical of those made in connection with the sale of a business. We may also be required to indemnify the purchasers of such investment to the extent that any such representations turn out to be inaccurate or with respect to certain potential liabilities. These arrangements may result in contingent liabilities that ultimately yield funding obligations that must be satisfied through our return of certain distributions previously made to us. Management does not believe contingent liabilities were material at December 31, 2013.

Substantially all of our assets are subject to security interests under our borrowings and if we default on our obligations, we may suffer adverse consequences, including the lenders foreclosing on our assets.

As of December 31, 2013, substantially all of our assets were pledged as collateral under our Credit Facility. If we default on our obligations, the lenders may have the right to foreclose upon and sell, or otherwise transfer, the collateral subject to their security interests. In such event, we may be forced to sell our investments to raise funds to repay our outstanding borrowings in order to avoid foreclosure and these forced sales may be at times and at prices we would not consider advantageous. Moreover, such deleveraging of our company could significantly impair our ability to effectively operate our business in the manner in which we have historically operated. As a result, we could be forced to curtail or cease new investment activities and lower or eliminate the distributions that we pay to our stockholders.

In addition, if the lenders exercise their right to sell the assets pledged under our borrowings, such sales may be completed at distressed sale prices, thereby diminishing or potentially eliminating the amount of cash available to us after repayment of the amounts outstanding.

Our Credit Facility matures in March 2017, and any inability to renew, extend or replace our Credit Facility could adversely impact our liquidity and ability to find new investments or maintain distributions to our stockholders.

We maintain a multi-currency $350 million senior secured credit facility with a group of lenders, under which we had approximately $179 million of indebtedness outstanding at December 31, 2013. Availability under our Credit Facility consists of $171 million. The Credit Facility’s commitment may increase in size, under certain circumstances, up to a total of $750 million. The Credit Facility has a stated maturity date of March 13, 2017. There can be no assurance that we will be able to renew, extend or replace the Credit Facility upon its maturity on terms that are favorable to us, if at all. Our ability to renew, extend or replace the Credit Facility will be constrained by then-current economic conditions affecting the credit markets. In the event that we are not able to renew, extend or replace the Credit Facility at the time of its maturity, this could have a material adverse effect on our liquidity and ability to fund new investments, our ability to make distributions to our stockholders and our ability to qualify as a RIC.

Our five-year Senior Secured Notes mature in January 2016 and our seven-year Senior Secured Notes mature in January 2018, and any inability to replace or repay our Senior Secured Notes could adversely impact our liquidity and ability to fund new investments or maintain distributions to our stockholders.

In January 2011, we closed a private placement issuance of $158 million in aggregate principal amount of five-year, senior secured notes with a fixed interest rate of 6.50% and a maturity date of January 18, 2016 and $17 million in aggregate principal amount of seven-year senior secured notes with a fixed interest rate of 6.60%

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and a maturity date of January 18, 2018. There can be no assurance that we will be able to replace the Senior Secured Notes upon their maturity on terms that are favorable to us, if at all. Our ability to replace the Senior Secured Notes will be constrained by then-current economic conditions affecting the credit markets. In the event that we are not able to replace or repay the Senior Secured Notes at the time of their maturity, this could have a material adverse effect on our liquidity and ability to fund new investments, our ability to make distributions to our stockholders and our ability to qualify as a RIC.

Our five-year Convertible Notes are due in February 2018. Any inability to replace or repay our Convertible Notes could adversely impact our liquidity and ability to fund new investments or maintain distributions to our stockholders. Conversion of the Convertible Notes to shares of the Company’s common stock could result in dilution per share for existing shareholders.

On February 19, 2013 we closed a private offering of $100 million in aggregate principal amount of 5.50% unsecured convertible senior notes due 2018 (the “Convertible Notes”). The initial purchasers of the Convertible Notes fully exercised their overallotment option and purchased an additional $15 million in aggregate principal amount of the Convertible Notes. The closing of the overallotment option took place on March 4, 2013. With the exercise of the overallotment option, a total of $115 million in aggregate principal amount of the Convertible Notes have been sold. Net proceeds to the Company from the offering, including the exercise of the overallotment option, are approximately $111.3 million. The Convertible Notes were only offered to qualified institutional buyers as defined in the Securities Act pursuant to Rule 144A under the Securities Act.

The Convertible Notes are unsecured and bear interest at a rate of 5.50% per year, payable semi-annually in arrears. In certain circumstances and during certain periods, the Convertible Notes are convertible into cash, shares of our common stock or a combination of cash and shares of our common stock, at our election, at an initial conversion rate of 86.0585 shares of common stock per $1,000 principal amount of the Convertible Notes, which is equivalent to an initial conversion price of approximately $11.62 per share of our common stock, subject to defined anti-dilution adjustments. We do not have the right to redeem the Convertible Notes prior to maturity. The Convertible Notes mature on February 15, 2018, unless repurchased or converted in accordance with their terms prior to such date.

There can be no assurance that we will be able to replace the Convertible Notes upon their maturity on terms that are favorable to us, if at all. Our ability to replace the Convertible Notes will be constrained by then-current economic conditions affecting the credit markets. In the event that we are not able to replace or repay the Convertible Notes at the time of their maturity, this could have a material adverse effect on our liquidity and ability to fund new investments, our ability to make distributions to our stockholders and our ability to qualify as a RIC.

Our Term Loan matures in May 2018, and any inability to renew, extend or replace our Term Loan could adversely impact our liquidity.

On June 7, 2013, the Company entered into a Senior Secured Term Loan Credit Agreement (the “Term Loan”) which has a principal amount of $10 million. The Term Loan has a stated maturity date of May 31, 2018. The interest rate applicable to borrowings thereunder is generally LIBOR plus an applicable margin of 3.75%. There can be no assurance that we will be able to renew, extend or replace the Term Loan upon its maturity on terms that are favorable to us, if at all. Our ability to renew, extend or replace the Term Loan will be constrained by then-current economic conditions affecting the credit markets. In the event that we are not able to renew, extend or replace the Term Loan at the time of its maturity, this could have a material adverse effect on our liquidity and ability to fund new investments, our ability to make distributions to our stockholders and our ability to qualify as a RIC.

If we incur additional debt, it could increase the risk of investing in our common stock.

We have indebtedness outstanding pursuant to our Credit Facility and may enter into new facilities and/or may increase the size of our existing credit facilities. We currently have outstanding $175 million of Senior Secured Notes, $115 million of Convertible Notes and $10 million of a Term Loan. Lenders under our Credit Facility, Senior Secured Notes and Convertible Senior Notes have fixed dollar claims on our assets that are superior to the claims of our common stockholders or any preferred stockholders. We have granted a security interest in our assets in connection with our Credit Facility and Senior Secured Notes.

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In the case of a liquidation event, those lenders would receive proceeds before our stockholders. In addition, borrowings, also known as leverage, magnify the potential for gain or loss on amounts invested and, therefore, increase the risks associated with investing in our common stock. Leverage is generally considered a speculative investment technique. If the value of our assets increases, then leveraging would cause the net asset value attributable to our common stock to increase more than it otherwise would have had we not leveraged. Conversely, if the value of our assets decreases, leveraging would cause the net asset value attributable to our common stock to decline more than it otherwise would have had we not leveraged. Similarly, any increase in our revenue in excess of interest expense on our borrowed funds would cause our net income to increase more than it would without the leverage. Any decrease in our revenue would cause our net income to decline more than it would have had we not borrowed funds and could negatively affect our ability to make distributions on our common stock. Our ability to service any debt that we incur depends largely on our financial performance and is subject to prevailing economic conditions and competitive pressures.

As a BDC, we generally are required to meet a coverage ratio of total assets to total borrowings and other senior securities, which include all of our borrowings and any preferred stock we may issue in the future, of at least 200%. If this ratio declines below 200%, we may not be able to incur additional debt and may need to sell a portion of our investments to repay some debt when it is disadvantageous to do so, and we may not be able to make distributions.

Illustration. The following table illustrates the effect of leverage on returns from an investment in our common stock assuming various annual returns, net of expenses. The calculations in the table below are hypothetical and actual returns may be higher or lower than those appearing below. The calculation is based on our level of borrowing at December 31, 2013, which represented borrowings equal to 37% of our total assets. On such date, we also had $1,282 million in total assets; an average cost of funds of 4.81%; $478 million in debt outstanding; and $710 million of total net assets. In order to compute the “Corresponding Return to Common Stockholders,” the “Assumed Return on Portfolio (Net of Expenses Other than Interest)” is multiplied by the total value of our assets at December 31, 2013 to obtain an assumed return to us. From this amount, the interest expense calculated by multiplying the interest rate of 4.81% by the $478 million debt is subtracted to determine the return available to stockholders. The return available to stockholders is then divided by the total value of our net assets at December 31, 2013 to determine the “Corresponding Return to Common Stockholders.” Actual interest payments may be different.

Our use of borrowed funds to make investments exposes us to risks typically associated with leverage.

We borrow money and may issue additional debt securities or preferred stock to leverage our capital structure. As a result:

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There is a risk that we may not make distributions and consequently will be subject to corporate-level income tax.

We intend to make distributions on a quarterly basis to our stockholders out of assets legally available for distribution. We may not be able to achieve operating results that will allow us to make distributions at a specific level or to increase the amount of these distributions from time to time. In addition, due to the asset coverage test applicable to us as a BDC, we may be limited in our ability to make distributions. Also, restrictions and provisions in our existing and any future debt arrangements may limit our ability to make distributions. If we do not distribute a certain percentage of our income annually, we could fail to qualify for tax treatment as a RIC, and we would be subject to corporate-level federal income tax. We cannot assure you that you will receive distributions at a particular level or at all.

There is a risk that a portion of our distributions to stockholders may include a return of stockholder capital.

We intend to make distributions on a quarterly basis to our stockholders out of assets legally available for distributions. A portion of such distributions may include a return of stockholder capital. Distributions in excess of the our current and accumulated earnings and profits are considered non-taxable distributions and serve to reduce the basis of our shares in the hands of the common stockholders rather than being currently taxable.

We may have difficulty paying our required distributions if we recognize income before or without receiving cash representing such income.

In accordance with GAAP and tax regulations, we include in income certain amounts that we have not yet received in cash, such as PIK interest. The increases in loan balances as a result of contracted PIK arrangements are included in income for the period in which such PIK interest was received, which is often in advance of receiving cash payment. We also may be required to include in income certain other amounts that we will not receive in cash. Any warrants that we receive in connection with our debt investments are generally valued as part of the negotiation process with the particular portfolio company. As a result, a portion of the aggregate purchase price for the debt investments and warrants are allocated to the warrants that we receive. This will generally result in “original issue discount” for tax purposes, which we must recognize as ordinary income, increasing the amounts we are required to distribute to qualify for the federal income tax benefits applicable to RICs. Because such original issue discount income would not be accompanied by cash, we would need to obtain cash from other sources to satisfy such distribution requirements. If we are unable to obtain cash from other sources to satisfy such distribution requirements, we may fail to qualify for favorable tax treatment as a RIC and, thus, could become subject to a corporate-level income tax on all of our income. Other features of the debt instruments that we hold may also cause such instruments to generate original issue discount, resulting in a distribution requirement in excess of current cash received. Since in certain cases we may recognize income before or without receiving cash representing such income, we may have difficulty meeting the requirement to distribute at least 90% of our net ordinary income and realized net short-term capital gains in excess of realized net long-term capital losses, if any. If we are unable to meet these distribution requirements, we will not qualify for favorable tax treatment as a RIC or, even if such distribution requirements are satisfied, we may be subject to tax on the amount that is undistributed. Accordingly, we may have to sell some of our assets, raise additional debt or equity capital or reduce new investment originations to meet these distribution requirements and avoid tax.

Because we are required to distribute substantially all of our net investment income and net realized capital gains to our stockholders, we will continue to need additional capital to finance our growth.

We have elected to be treated for federal income tax purposes as a RIC under Subchapter M of the Code. If we can meet certain requirements, including source of income, asset diversification and distribution

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requirements, and if we continue to qualify as a BDC, we will continue to qualify to be a RIC under the Code and will not have to pay corporate-level taxes on income we distribute to our stockholders, allowing us to substantially reduce or eliminate our corporate-level tax liability. As a BDC, we are generally required to meet a coverage ratio of total assets to total senior securities, which includes all of our borrowings and any preferred stock we may issue in the future, of at least 200%. This requirement limits the amount that we may borrow. Because we will continue to need capital to grow our investment portfolio, this limitation may prevent us from incurring debt and require us to raise additional equity at a time when it may be disadvantageous to do so. We cannot assure you that debt and equity financing will be available to us on favorable terms, if at all, and debt financings may be restricted by the terms of any of our outstanding borrowings. In addition, as a BDC, we are generally not permitted to issue equity securities priced below net asset value without stockholder approval. If additional funds are not available to us, we could be forced to curtail or cease new lending and investment activities, and our net asset value and profitability could decline.

Any unrealized losses we experience on our investment portfolio may be an indication of future realized losses, which could reduce our income available for distribution.

Decreases in the market values or fair values of our investments will be recorded as unrealized depreciation. Any unrealized losses in our investment portfolio could be an indication of a portfolio company’s inability to meet its repayment obligations to us with respect to the affected investments. This could result in realized losses in the future and ultimately in reductions of our income available for distribution in future periods.

Our investment advisor and its affiliates, officers and employees have certain conflicts of interest.

The Advisor, its officers and employees and members of its investment committee serve or may serve as investment advisors, officers, directors or principals of entities or investment funds that operate in the same or a related line of business as us and/or of investment funds managed by our affiliates. Accordingly, these individuals may have obligations to investors in those entities or funds, the fulfillment of which might not be in our best interests or the best interests of our stockholders. In addition, we note that any affiliated investment vehicle currently formed or formed in the future and managed by the Advisor or its affiliates may have overlapping investment objectives with our own and, accordingly, may invest in asset classes similar to those targeted by us. As a result, the Advisor and/or its affiliates may face conflicts in allocating investment opportunities between us and such other entities. Although the Advisor and its affiliates will endeavor to allocate investment opportunities in a fair and equitable manner and consistent with applicable allocation procedures, it is possible that, in the future, we may not be given the opportunity to participate in investments made by investment funds managed by the Advisor or its affiliates. In any such case, if the Advisor forms other affiliates in the future, we may co-invest on a concurrent basis with such other affiliates, subject to compliance with applicable regulations and regulatory guidance, as well as applicable allocation procedures. In certain circumstances, negotiated co-investments may be made only if we receive an order from the SEC permitting us to do so. There can be no assurance when any such order would be obtained or that one will be obtained at all.

Our base management fee may induce our investment advisor to incur leverage.

Our base management fee is calculated on the basis of our total assets, including assets acquired with the proceeds of leverage. This may encourage the Advisor to use leverage to increase the aggregate amount of and the return on our investments, even when it may not be appropriate to do so, and to refrain from delevering when it would otherwise be appropriate to do so. Under certain circumstances, the use of increased leverage may increase the likelihood of default, which would impair the value of our common stock. Given the subjective nature of the investment decisions made by our investment adviser on our behalf, we will not be able to monitor this conflict of interest.

Our incentive fee structure and the formula for calculating the incentive fee may incentivize our investment advisor to pursue speculative investments.

The incentive fee payable by us to the Advisor may create an incentive for the Advisor to pursue investments on our behalf that are riskier or more speculative than would otherwise be the case in the absence of

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such compensation arrangement. The incentive fee payable to the Advisor is calculated based on a percentage of distributions on our common stock. The incentive fee payable by us to the Advisor also may induce the Advisor to invest on our behalf in instruments that have a deferred interest feature, even if such deferred payments would not provide cash necessary to enable us to pay current distributions to our stockholders. Under these investments, we would accrue interest over the life of the investment but would not receive the cash income from the investment until the end of the term, if at all. Our net investment income used to calculate the income portion of our incentive fee, however, will include accrued interest. Thus, a portion of this incentive fee would be based on income that we have not yet received in cash and may never receive in cash if the portfolio company is unable to satisfy such interest payment obligation to us. The foregoing risks could be increased because the Advisor is not obligated to reimburse us for any incentive fee received even if we subsequently incur losses or never receive in cash income that was previously accrued.

We may not replicate the success of BlackRock or Kelso.

We are not managed by either BlackRock or Kelso. Our investment strategies differ from those of BlackRock, Kelso or their respective affiliates. We can provide no assurance that we will replicate the historical or future performance of BlackRock’s or Kelso’s investments and our investment returns may be substantially lower than the returns achieved by those firms. As a BDC, we are subject to certain investment restrictions that do not apply to BlackRock or Kelso. In addition, recent market conditions and the current stage of the economic cycle present significant challenges to us that have not been present in the past. Accordingly, we can offer no assurance that the Advisor will be able to continue to implement our investment objective with the same degree of success as it has in the past or that shares of our common stock will trade at or above the current level.

Substantially all of our portfolio investments are recorded at fair value as determined in good faith by or under the direction of our Board of Directors and, as a result, there is uncertainty regarding the value of our portfolio investments.

There is not a readily available market value for substantially all of the investments in our portfolio. We value these investments quarterly at fair value as determined in good faith under the direction of our Board of Directors using a consistently applied valuation process in accordance with a documented valuation policy that has been reviewed and approved by our Board of Directors. Our Board of Directors utilizes the services of one or more independent valuation firms to aid in determining the fair value of these investments. Due to the inherent uncertainty and subjectivity of determining the fair value of investments that do not have a readily available market value, the fair value of our investments may differ significantly from the values that would have been used had a readily available market value existed for such investments and may differ materially from the amounts we realize on any dispositions of such investments. In addition, the impact of changes in the market environment and other events on the fair values of our investments that have no readily available market values may differ from the impact of such changes on the readily available market values for our other investments. Our net asset value could be adversely affected if our determinations regarding the fair value of our investments were materially higher than the values that we ultimately realize upon the disposal of such investments.

We may in the future determine to fund a portion of our investments by issuing preferred stock, which would magnify the potential gains or losses and the risks of investing in us in the same manner as our borrowings.

Preferred stock, which is another form of leverage, has the same risks to our common stockholders as borrowings because the dividends on any preferred stock we issue must be cumulative. Payment of such dividends and repayment of the liquidation preference of such preferred stock must take preference over any dividends or other payments to our common stockholders and preferred stockholders are not subject to any of our expenses or losses, and are not entitled to participate in any income or appreciation in excess of their stated preference.

Our Board of Directors may change our investment objective, operating policies and strategies without prior notice or stockholder approval.

Our Board of Directors has the authority to modify or waive certain of our operating policies and strategies without prior notice and without stockholder approval (except as required by the 1940 Act). However, absent

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stockholder approval, we may not change the nature of our business so as to cease to be, or withdraw our election as, a BDC. We cannot predict the effect any changes to our current operating policies and strategies would have on our business, operating results or value of our common stock. Nevertheless, the effects could adversely affect our business and impact our ability to make distributions.

We may experience fluctuations in our periodic results.

We could experience fluctuations in our periodic results due to a number of factors, some of which are beyond our control, including our ability to make investments in companies that meet our investment criteria, the interest rates payable on the debt investments we make, the default rate on such investments, the level of our expenses (including the interest rates payable on our borrowings and the dividend rates on any preferred stock we may issue), variations in and the timing of the recognition of realized and unrealized gains or losses, the degree to which we encounter competition in our markets and general economic conditions. As a result of these factors, results for any period should not be relied upon as being indicative of performance in future periods.

Changes in interest rates may affect our cost of capital and net investment income.

General interest rate fluctuations may have a substantial negative impact on our investments, the value of our common stock and our rate of return on invested capital. A reduction in the interest rates on new investments relative to interest rates on current investments could also have an adverse impact on our net investment income. An increase in interest rates could decrease the value of any investments we hold which earn fixed interest rates, including subordinated loans, senior and junior secured and unsecured debt securities and loans and high-yield bonds, and also could increase our interest expense, thereby decreasing our net investment income. Also, an increase in interest rates available to investors could make investment in our common stock less attractive if we are not able to increase our distribution rate, which could reduce the value of our common stock.

The effect of global climate change may impact the operations of our portfolio companies.

There may be evidence of global climate change. Climate change creates physical and financial risk and some of our portfolio companies may be adversely affected by climate change. For example, the needs of customers of energy companies vary with weather conditions, primarily temperature and humidity. To the extent weather conditions are affected by climate change, energy use could increase or decrease depending on the duration and magnitude of any changes. Increases in the cost of energy could adversely affect the cost of operations of our portfolio companies if the use of energy products or services is material to their business. A decrease in energy use due to weather changes may affect some of our portfolio companies’ financial condition, through decreased revenues. Extreme weather conditions in general require more system backup, adding to costs, and can contribute to increased system stresses, including service interruptions.

Risks Related to Our Investments

Our investments are risky and highly speculative, and we could lose all or part of our investment.

Investing in private middle-market companies involves a high degree of risk and our financial results may be affected adversely if one or more of our significant portfolio investments defaults on its loans or fails to perform as we expect. We invest primarily in middle-market companies in the form of senior and junior secured and unsecured debt securities and loans, each of which may include an equity component, and by making direct preferred, common and other equity investments in such companies.

Investing in private middle-market companies involves a number of significant risks, including these companies:

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In addition, in the course of providing significant managerial assistance to certain of our portfolio companies, certain of our officers and directors may serve as directors on the boards of such companies. To the extent that litigation arises out of our investments in these companies, our officers and directors may be named as defendants in such litigation, which could result in an expenditure of funds (through our indemnification of such officers and directors) and the diversion of management time and resources.

From time to time, we and the Advisor may be a party to certain legal proceedings incidental to the normal course of our business, including the enforcement of our rights under contracts with our portfolio companies. While we cannot predict the outcome of these legal proceedings with certainty, we do not expect that these proceedings will have a material effect on our consolidated financial statements. We have been named as a defendant, together with the Advisor and certain other defendants, in two wrongful death and personal injury actions filed in West Virginia at the facilities of one of our portfolio companies. We and the Advisor have filed motions to dismiss both cases. The litigations are in the early stages and it is not possible to predict with a reasonable degree of certainty the likelihood of an unfavorable outcome or the range of a potential loss, if any.

An investment strategy focused primarily on privately held companies presents certain challenges, including the lack of available information about these companies.

We invest primarily in privately held companies. Generally, little public information exists about these companies. We must therefore rely on the ability of our investment adviser to obtain adequate information to evaluate the potential risks of investing in these companies. These companies and their financial information generally are not subject to the Sarbanes-Oxley Act of 2002 and other rules that govern public companies. If we are unable to uncover all material information about these companies, we may not make a fully informed investment decision, and we may lose money on our investments. These factors could affect our investment returns.

Our investments in lower credit quality obligations are risky and highly speculative, and we could lose all or part of our investment.

Most of our debt investments are likely to be in lower grade obligations. The lower grade investments in which we invest may be rated below investment grade by one or more nationally-recognized statistical rating

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agencies at the time of investment or may be unrated but determined by the Advisor to be of comparable quality. Debt securities rated below investment grade are commonly referred to as “junk bonds” and are considered speculative with respect to the issuer’s capacity to pay interest and repay principal. The debt that we invest in typically is not initially rated by any rating agency, but we believe that if such investments were rated, they would be below investment grade (rated lower than “Baa3” by Moody’s Investors Service, lower than “BBB-” by Fitch Ratings or lower than “BBB-” by Standard & Poor’s). We may invest without limit in debt of any rating, as well as debt that has not been rated by any nationally recognized statistical rating organization.

Investment in lower grade investments involves a substantial risk of loss. Lower grade securities or comparable unrated securities are considered predominantly speculative with respect to the issuer’s ability to pay interest and principal and are susceptible to default or decline in market value due to adverse economic and business developments. The market values for lower grade debt tend to be very volatile and are less liquid than investment grade securities. For these reasons, your investment in our company is subject to the following specific risks: increased price sensitivity to a deteriorating economic environment; greater risk of loss due to default or declining credit quality; adverse company specific events are more likely to render the issuer unable to make interest and/or principal payments; and if a negative perception of the lower grade debt market develops, the price and liquidity of lower grade securities may be depressed. This negative perception could last for a significant period of time.

Any investments in distressed debt obligations may not produce income and may require us to bear large expenses in order to protect and recover our investment.

At times, distressed debt obligations may not produce income and may require us to bear certain extraordinary expenses (including legal, accounting, valuation and transaction expenses) in order to protect and recover our investment. Therefore, to the extent we invest in distressed debt, our ability to achieve current income for our stockholders may be diminished. We also will be subject to significant uncertainty as to when and in what manner and for what value the distressed debt we invest in will eventually be satisfied (e.g., through liquidation of the obligor’s assets, an exchange offer or plan of reorganization involving the distressed debt securities or a payment of some amount in satisfaction of the obligation). In addition, even if an exchange offer is made or plan of reorganization is adopted with respect to distressed debt we hold, there can be no assurance that the securities or other assets received by us in connection with such exchange offer or plan of reorganization will not have a lower value or income potential than may have been anticipated when the investment was made. Moreover, any securities received by us upon completion of an exchange offer or plan of reorganization may be restricted as to resale. As a result of our participation in negotiations with respect to any exchange offer or plan of reorganization with respect to an issuer of distressed debt, we may be restricted from disposing of such securities.

If we invest in preferred stock, we may incur additional risks.

To the extent we invest in preferred securities, we may incur particular risks, including:

Our equity investments may decline in value.

The equity securities in which we invest may not appreciate or may decline in value. We may thus not be able to realize gains from our equity securities, and any gains that we do realize on the disposition of any equity

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securities may not be sufficient to offset any other losses we experience. As a result, the equity securities in which we invest may decline in value, which may negatively impact our ability to pay distributions and cause you to lose all or part of your investment.

We may expose ourselves to risks if we engage in hedging transactions.

We may enter into hedging transactions, which could expose us to risks associated with such transactions. We may utilize instruments such as forward contracts and interest rate swaps, caps, collars and floors to seek to hedge against fluctuations in the relative values of our portfolio positions and amounts due under our debt arrangements from changes in market interest rates. Use of these hedging instruments may include counterparty credit risk. Utilizing such hedging instruments does not eliminate the possibility of fluctuations in the values of such positions and amounts due under our debt arrangements or prevent losses if the values of such positions decline. However, such hedging can establish other positions designed to gain from those same developments, thereby offsetting the decline in the value of such portfolio positions. Such hedging transactions may also limit the opportunity for gain if the values of the underlying portfolio positions should increase. Moreover, it may not be possible to hedge against an interest rate fluctuation that is so generally anticipated that we are not able to enter into a hedging transaction at an acceptable price.

The success of our hedging transactions will depend on our ability to correctly predict movements and interest rates. Therefore, while we may enter into such transactions to seek to reduce interest rate risks, unanticipated changes in interest rates may result in poorer overall investment performance than if we had not engaged in any such hedging transactions. In addition, the degree of correlation between price movements of the instruments used in a hedging strategy and price movements in the portfolio positions being hedged may vary. Moreover, for a variety of reasons, we may not seek to establish a perfect correlation between such hedging instruments and the portfolio holdings or debt arrangements being hedged. Any such imperfect correlation may prevent us from achieving the intended hedge and expose us to risk of loss. See also “—Changes in interest rates may affect our cost of capital and net investment income.”

Economic recessions or downturns could impair our portfolio companies and harm our operating results.

Many of our portfolio companies may be susceptible to economic slowdowns or recessions and may be unable to repay our loans during these periods. Therefore, our non-performing assets may increase and the value of our portfolio may decrease during these periods as we are required to record the values of our investments. Adverse economic conditions also may decrease the value of collateral securing some of our loans and the value of our equity investments. Economic slowdowns or recessions could lead to financial losses in our portfolio and a decrease in revenues, net income and assets. Unfavorable economic conditions also could increase our funding costs, limit our access to the capital markets or result in a decision by lenders not to extend credit to us. These events could prevent us from increasing investments and harm our operating results.

Our portfolio companies may incur debt that ranks equally with, or senior to, our investments in such companies.

Our portfolio companies usually will have, or may be permitted to incur, other debt that ranks equally with, or senior to, debt securities in which we invest. By their terms, such debt instruments may provide that the holders are entitled to receive payment of interest or principal on or before the dates on which we are entitled to receive payments. Also, in the event of insolvency, liquidation, dissolution, reorganization or bankruptcy of a portfolio company, holders of debt instruments ranking senior to our investment in that portfolio company would typically be entitled to receive payment in full before we receive any distribution in respect of our investment. After repaying such senior creditors, the portfolio company may not have any remaining assets to use for repaying its obligations to us. In the case of debt ranking equally with debt securities in which we invest, we would have to share on an equal basis any distributions with other creditors holding such debt in the event of an insolvency, liquidation, dissolution, reorganization or bankruptcy of the relevant portfolio company. In addition, we may not be in a position to control any portfolio company by investing in its debt securities. As a result, we are subject to the risk that a portfolio company in which we invest may make business decisions with which we

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disagree, and the management of such company, as representatives of the holders of its common equity, may take risks or otherwise act in ways that do not serve our interests as debt investors.

Because we generally do not hold controlling equity interests in our portfolio companies, we may not be in a position to exercise control over our portfolio companies or to prevent decisions by management of our portfolio companies that could decrease the value of our investments.

We generally do not hold controlling equity positions in our portfolio companies. As a result, we are subject to the risk that a portfolio company may make business decisions with which we disagree, and that the management and/or stockholders of a portfolio company may take risks or otherwise act in ways that are adverse to our interests. Due to the lack of liquidity of the debt and equity investments that we typically hold in our portfolio companies, we may not be able to dispose of our investments in the event we disagree with the actions of a portfolio company and may therefore suffer a decrease in the value of our investments.

Concentration of our assets in an issuer, industry or sector may present more risks than if we were more broadly diversified over numerous issuers, industries and sectors of the economy.

We are classified as a non-diversified investment company within the meaning of the 1940 Act, which means that we are not limited by the 1940 Act with respect to the proportion of our assets that we may invest in securities of a single issuer. To the extent that we assume large positions in the securities of a small number of issuers, our net asset value may fluctuate to a greater extent than that of a diversified investment company as a result of changes in the financial condition or the market’s assessment of the issuer. We may also be more susceptible to any single economic or regulatory occurrence than a diversified investment company.

In addition, we may, from time to time, invest a substantial portion of our assets in the securities of issuers in any single industry or sector of the economy or in only a few issuers. We cannot predict the industries or sectors in which our investment strategy may cause us to concentrate and cannot predict the level of our diversification among issuers to ensure that we satisfy diversification requirements for qualification as a RIC for U.S. federal income tax purposes. A downturn in an industry or sector in which we are concentrated would have a larger impact on us than on a company that does not concentrate in that particular industry or sector. Furthermore, the Advisor has not made and does not intend to make any determination as to the allocation of assets among different classes of securities. At any point in time we may be highly concentrated in a single type of asset, such as junior unsecured loans or distressed debt. Consequently, events which affect a particular asset class disproportionately could have an equally disproportionate effect on us.

Our failure to make follow-on investments in our portfolio companies could impair the value of our portfolio.

Following an initial investment in a portfolio company, we may make additional investments in that portfolio company as “follow-on” investments in order to: (i) increase or maintain in whole or in part our equity ownership percentage; (ii) exercise warrants, options or convertible securities that were acquired in the original or any subsequent financing; or (iii) attempt to preserve or enhance the value of our investments. We may elect not to make follow-on investments or otherwise lack sufficient funds to make those investments. We will have the discretion to make any follow-on investments, subject to the availability of capital resources. The failure to make follow-on investments may, in some circumstances, jeopardize the continued viability of a portfolio company and our initial investment, or may result in a missed opportunity for us to maintain or increase our participation in a successful operation. Even if we have sufficient capital to make a desired follow-on investment, we may elect not to make a follow-on investment because we may not want to increase our concentration of risk, either because we prefer other opportunities or because we are subject to BDC requirements that would prevent such follow-on investments or the desire to maintain our RIC status.

Our investments in foreign securities may involve significant risks in addition to the risks inherent in U.S. investments.

Our investment strategy contemplates that a portion of our investments may be in securities of foreign companies. Investing in foreign companies may expose us to additional risks not typically associated with

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investing in U.S. companies. These risks include changes in exchange control regulations, political and social instability, expropriation, imposition of foreign taxes (potentially at confiscatory levels), less liquid markets and less available information than is generally the case in the U.S., higher transaction costs, less government supervision of exchanges, brokers and issuers, less developed bankruptcy laws, difficulty in enforcing contractual obligations, lack of uniform accounting and auditing standards and greater price volatility.

Although most of our investments are denominated in U.S. dollars, our investments that are denominated in a foreign currency are subject to the risk that the value of a particular currency may change in relation to one or more other currencies. Among the factors that may affect currency values are trade balances, the level of short-term interest rates, differences in relative values of similar assets in different currencies, long-term opportunities for investment and capital appreciation, and political developments. We may employ hedging techniques to minimize these risks, but we can offer no assurance that we will, in fact, hedge currency risk or, that if we do, such strategies will be effective.

Our investments in the healthcare sector face considerable uncertainties including substantial regulatory challenges.

Our investments in the healthcare sector are subject to substantial risks. The laws and rules governing the business of healthcare companies and interpretations of those laws and rules are subject to frequent change. Broad latitude is given to the agencies administering those regulations. Existing or future laws and rules could force our portfolio companies engaged in healthcare to change how they do business, restrict revenue, increase costs, change reserve levels, change business practices and increase liability in federal and state courts. Healthcare companies often must obtain and maintain regulatory approvals to market many of their products, change prices for certain regulated products and to consummate some of their acquisitions and divestitures.

Delays in obtaining or failure to obtain or maintain these approvals could reduce revenue or increase costs. Policy changes on the local, state and federal level, such as the expansion of the government’s role in the health care arena and alternative assessments and tax increases specific to the healthcare industry or healthcare products as part of federal health care reform initiatives, could fundamentally change the dynamics of the healthcare industry.

Risks Related to Our Operations as a BDC

Our ability to enter into transactions with our affiliates is restricted.

We are prohibited under the 1940 Act from knowingly participating in certain transactions with certain of our affiliates without the prior approval of our independent directors and, in some cases, of the SEC. Any person that owns, directly or indirectly, 5% or more of our outstanding voting securities will be our affiliate for purposes of the 1940 Act and we are generally prohibited from buying or selling any security (other than our securities) from or to such affiliate, absent the prior approval of our independent directors. The 1940 Act also prohibits certain “joint” transactions with certain of our affiliates, which could include investments in the same portfolio company (whether at the same or different times), without prior approval of our independent directors and, in some cases, of the SEC. We are prohibited from buying or selling any security from or to any person who owns more than 25% of our voting securities or certain of that person’s affiliates, or entering into prohibited joint transactions with such persons, absent the prior approval of the SEC through an exemptive order (other than in certain limited situations pursuant to current regulatory guidance). The analysis of whether a particular transaction constitutes a joint transaction requires a review of the relevant facts and circumstances then existing. Similar restrictions limit our ability to transact business with our officers or directors or their affiliates.

We have applied for an exemptive order from the SEC that would permit us and certain of our affiliates, including investment funds managed by our affiliates, to co-invest. Any such order will be subject to certain terms and conditions and there can be no assurance that such order will be granted by the SEC. Accordingly, we cannot assure you that we or our affiliates, including investment funds managed by our affiliates, will be

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permitted to co-invest, other than in the limited circumstances currently permitted by regulatory guidance or in the absence of a joint transaction.

Regulations governing our operation as a BDC affect our ability to, and the way in which we, raise additional capital.

Our business requires a substantial amount of capital. We may acquire additional capital from the issuance of senior securities or other indebtedness, the issuance of additional shares of our common stock or from securitization transactions. However, we may not be able to raise additional capital in the future on favorable terms or at all. We may issue debt securities or preferred securities, which we refer to collectively as “senior securities,” and we may borrow money from banks or other financial institutions, up to the maximum amount permitted by the 1940 Act. The 1940 Act permits us to issue senior securities or incur indebtedness only in amounts such that our asset coverage, as defined in the 1940 Act, equals at least 200% after such issuance or incurrence. Our ability to make distributions or issue additional senior securities would be restricted if our asset coverage ratio were not at least 200%. If the value of our assets declines, we may be unable to satisfy this test. If that happens, we may be required to liquidate a portion of our investments and repay a portion of our indebtedness at a time when such sales may be disadvantageous.

Stockholders will likely incur dilution if we sell or otherwise issue shares of our common stock at prices below the then current net asset value per share of our common stock.

We obtained approval at our 2013 Annual Meeting of Stockholders to allow us the flexibility, with the approval of our Board of Directors, to sell or otherwise issue shares of our common stock at a price below its then current net asset value per share during the twelve month period following stockholders approval at the 2013 Annual Meeting, subject to the policy of our Board of Directors that the Company shall not sell or otherwise issue more than 25% of the Company’s then outstanding shares of common stock (immediately prior to such sale

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or issuance) at a price below its then current net asset value per share. Since we obtained this approval from stockholders, we may issue shares of our common stock at a price below its then current net asset value per share, subject to the foregoing conditions and the determination by our Board of Directors that such issuance and sale is in our and our stockholders’ best interests.

In addition, we may also issue shares in certain limited circumstances under our dividend reinvestment plan and under interpretive advice issued by the Internal Revenue Service. Any sale or other issuance of shares of our common stock at a price below net asset value per share would result in an immediate dilution to the net asset value per share. This dilution would occur as a result of a proportionately greater decrease in a stockholder’s interest in our earnings and assets and voting interest in us than the increase in our assets resulting from such issuance. Because the number of shares of common stock that could be so issued and the timing of any issuance is not currently known, the actual dilutive effect cannot be predicted. We caution you that such effects may be material, and we undertake to describe material risks and dilutive effects of any offering that we make at a price below our then current net asset value in the future in a prospectus supplement issued in connection with any such offering. We cannot predict whether shares of our common stock will trade above, at or below our net asset value.

Changes in the laws or regulations governing our business or the businesses of our portfolio companies and any failure by us or our portfolio companies to comply with these laws or regulations could negatively affect the profitability of our operations or of our portfolio companies.

We are subject to changing rules and regulations of federal and state governments, as well as the stock exchange on which our common stock is listed. These entities, including the Public Company Accounting Oversight Board, the SEC and The NASDAQ Global Select Market, have issued a significant number of new and increasingly complex requirements and regulations over the course of the last several years and continue to develop additional regulations. In particular, changes in the laws or regulations or the interpretations of the laws and regulations that govern BDCs, RICs or non-depository commercial lenders could significantly affect our operations and our cost of doing business. We are subject to federal, state and local laws and regulations and are subject to judicial and administrative decisions that affect our operations, including our loan originations, maximum interest rates, fees and other charges, disclosures to portfolio companies, the terms of secured transactions, collection and foreclosure procedures and other trade practices. If these laws, regulations or decisions change, or if we expand our business into jurisdictions that have adopted more stringent requirements than those in which we currently conduct business, we may have to incur significant expenses in order to comply, or we might have to restrict our operations. In addition, if we do not comply with applicable laws, regulations and decisions, we may lose licenses needed for the conduct of our business and be subject to civil fines and criminal penalties, any of which could have a material adverse effect upon our business, financial condition and results of operations.

The impact of recent financial reform legislation on us is uncertain.

In light of current conditions in the U.S. and global financial markets and the U.S. and global economy, legislators, the presidential administration and regulators have increased their focus on the regulation of the financial services industry. The Dodd-Frank Wall Street Reform and Consumer Protection Act became effective on July 21, 2010; although many provisions of the Dodd-Frank Reform Act have delayed effectiveness or will not become effective until the relevant federal agencies issue new rules to implement the Dodd-Frank Reform Act. Nevertheless, the Dodd-Frank Reform Act may have a material adverse impact on the financial services industry as a whole and on our business, financial condition and results of operations. Accordingly, we cannot predict the effect the Dodd-Frank Reform Act or implementing its regulations will have on our business, financial condition and results of operations.

Any failure on our part to maintain our status as a BDC would reduce our operating flexibility.

The 1940 Act imposes numerous constraints on the operations of BDCs. Any failure to comply with the requirements imposed on BDCs by the 1940 Act could cause the SEC to bring an enforcement action against us and/or expose us to claims of private litigants. In addition, upon approval of a majority of our stockholders, we may elect to withdraw our status as a BDC. If we decide to withdraw our election, or if we otherwise fail to qualify, or maintain our qualification, as a BDC, we may be subject to the substantially greater regulation under

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the 1940 Act as a closed-end investment company. Compliance with such regulations would significantly decrease our operating flexibility, and could significantly increase our costs of doing business.

If we do not invest a sufficient portion of our assets in qualifying assets, we could fail to qualify as a BDC or be precluded from investing according to our current business strategy.

As a BDC, we may not acquire any assets other than “qualifying assets” unless, at the time of and after giving effect to such acquisition, at least 70% of our total assets are qualifying assets. We believe that most of the investments that we may acquire in the future will constitute qualifying assets. However, we may be precluded from investing in what we believe are attractive investments if such investments are not qualifying assets for purposes of the 1940 Act. If we do not invest a sufficient portion of our assets in qualifying assets, we could be found to be in violation of the 1940 Act provisions applicable to BDCs, which would have a material adverse effect on our business, financial condition and results of operations. Similarly, these rules could prevent us from making follow-on investments in existing portfolio companies (which could result in the dilution of our position) or could require us to dispose of investments at inappropriate times in order to come into compliance with the 1940 Act. Because most of our investments will be in private companies, and therefore will be relatively illiquid, any such dispositions could be made at disadvantageous prices and could result in substantial losses.

Loss of status as a RIC would reduce our net asset value and distributable income.

We currently qualify as a RIC under the Code and intend to continue to qualify each year as a RIC. As a RIC we do not have to pay federal income taxes on our income (including realized gains) that is distributed to our stockholders, provided that we satisfy certain distribution requirements. Accordingly, we are not permitted under accounting rules to establish reserves for taxes on our unrealized capital gains. If we fail to qualify for RIC status in any year, to the extent that we had unrealized gains, we would have to establish reserves for taxes, which would reduce our net asset value. In addition, if we, as a RIC, were to decide to make a deemed distribution of net realized capital gains and retain the net realized capital gains, we would have to establish appropriate reserves for taxes that we would have to pay on behalf of stockholders. It is possible that establishing reserves for taxes could have a material adverse effect on the value of our common stock.

We will be subject to corporate-level income tax if we are unable to maintain our qualification as a RIC under Subchapter M of the Code or do not satisfy the annual distribution requirement.

To maintain RIC status and be relieved of federal taxes on income and gains distributed to our stockholders, we must meet the following annual distribution, income source and asset diversification requirements.

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If we fail to qualify for or maintain RIC status for any reason and are subject to corporate-level income tax, the resulting corporate-level taxes could substantially reduce our net assets, the amount of income available for distribution and the amount of our distributions. Such a failure would have a material adverse effect on us and our stockholders. The recently enacted “Regulated Investment Company Modernization Act of 2010,” which is effective for 2011 and later tax years, provides some relief from RIC disqualification due to failures of the income source and asset diversification requirements, although there may be additional taxes due in such cases. We cannot assure you that we would qualify for any such relief should we fail the income source or asset diversification requirements.

Risks Relating to an Investment in Our Common Stock

Our shares of common stock have traded at a discount from net asset value and may do so again in the future, which could limit our ability to raise additional equity capital.

Shares of closed-end investment companies, including BDC’s, may trade at a market discount from net asset value. This characteristic of closed-end investment companies and business development companies is separate and distinct from the risk that our net asset value per share may decline. In the past, the stocks of BDCs as an industry, including shares of our common stock, have traded below net asset value and at historic lows as a result of concerns over liquidity, leverage restrictions and distribution requirements. When our common stock is trading below its net asset value per share, we will generally not be able to issue additional shares of our common stock at its market price without first obtaining approval for such issuance from our stockholders and our independent directors. At our 2013 Annual Meeting of Stockholders, subject to certain conditions and Board of Directors determinations, our stockholders approved our ability to sell or otherwise issue shares of our common stock at a price below its then current net asset value per share for a twelve month period expiring on the anniversary of the date of stockholder approval.

Investing in our common stock may involve an above average degree of risk.

The investments we make in accordance with our investment objective may result in a higher amount of risk than alternative investment options and a higher risk of volatility or loss of principal. Our investments in portfolio companies involve higher levels of risk, and therefore, an investment in our shares may not be suitable for someone with lower risk tolerance.

The price of our common stock may fluctuate significantly.

As with any company, the price of our common stock will fluctuate with market conditions and other factors. The market price and liquidity of the market for our common stock may from time to time be affected by a number of factors, which include, but are not limited to, the following:

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Our shares may trade at discounts from net asset value or at premiums that are unsustainable over the long term.

Shares of BDCs may trade at a market price that is less than the net asset value that is attributable to those shares. Our shares have traded above and below our net asset value. The possibility that our shares of common stock will trade at a discount from net asset value or at a premium that is unsustainable over the long term is separate and distinct from the risk that our net asset value will decrease. It is not possible to predict whether our shares will trade at, above or below net asset value in the future.

Our principal stockholders have substantial ownership in us, and this concentration of ownership could limit your ability to influence the outcome of key transactions, including a change of control.

As a result of their substantial ownership in us, our principal stockholders may be able to exert influence over our management and policies. This concentration of ownership may have the effect of delaying, preventing or deterring a change of control of our company, depriving our stockholders of an opportunity to receive a premium for their common stock as part of a sale of our company, and ultimately affecting the market price of our common stock.

Sales of substantial amounts of our common stock in the public market may have an adverse effect on the market price of our common stock.

The shares of our common stock beneficially owned by our principal stockholders are generally available for resale, subject to the provisions of Rule 144 promulgated under the Securities Act. Sales of substantial amounts of our common stock, or the availability of such common stock for sale, could adversely affect the prevailing market prices for our common stock. If this occurs and continues, it could impair our ability to raise additional capital through the sale of securities should we desire to do so.

Our capital-raising activities may have an adverse effect on the market price of our common stock.

When we issue securities or incur debt, we generally obtain cash or cash equivalents. Any increase in our holdings of cash or cash equivalents could adversely affect the prevailing market prices for our common stock, especially if we are unable to timely deploy the capital in suitable investments. The adverse impact on the prevailing market prices for our common stock could be greater if we issue debt securities or other securities requiring the payment of interest and are unable to timely deploy the capital in suitable investments.

There is a risk that investors in our equity securities may not receive distributions or that our distributions may not grow over time.

We intend to make distributions on a quarterly basis to our stockholders out of assets legally available for distribution. There can be no assurance that we will achieve investment results that will allow us to make a specified level of cash distributions or year-to-year increases in cash distributions. If we declare a distribution

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and if more stockholders opt to receive cash distributions rather than participate in our dividend reinvestment plan, we may be forced to sell some of our investments in order to make cash distributions. In addition, due to the asset coverage test applicable to us as a BDC, we may be limited in our ability to make distributions. Further, if we invest a greater amount of assets in equity securities that do not pay current dividends, it could reduce the amount available for distribution.

We may in the future choose to pay distributions in our own stock, in which case our stockholders may be required to pay tax in excess of the cash they receive, and which may adversely affect the market price of our common stock.

We may distribute taxable distributions that are payable in part in our stock. Under a recently issued IRS Revenue Procedure, up to 90% of any such taxable distribution for taxable years ending prior to 2012 could be payable in our stock. The IRS has also issued (and where Revenue Procedure 2009-15 or 2010-12 is not currently applicable, the IRS continues to issue) private letter rulings on cash/stock distributions paid by regulated investment companies and real estate investment trusts using a 20% cash standard (instead of the 10% cash standard of Revenue Procedures 2009-15 and 2010-12) if certain requirements are satisfied. Taxable stockholders receiving such distributions will be required to include the full amount of the distribution as ordinary income (or as long-term capital gain to the extent such distribution is properly designated as a capital gain distribution) to the extent of our current and accumulated earnings and profits for United States federal income tax purposes. As a result, a U.S. stockholder may be required to pay tax with respect to such distributions in excess of any cash received. If a U.S. stockholder sells the stock it receives as a distribution in order to pay this tax, the sales proceeds may be less than the amount included in income with respect to the distribution, depending on the market price of our stock at the time of the sale. Furthermore, with respect to non-U.S. stockholders, we may be required to withhold U.S. tax with respect to such distributions, including in respect of all or a portion of such distribution that is payable in stock. In addition, if a significant number of our stockholders determine to sell shares of our stock in order to pay taxes owed on distributions, it may put downward pressure on the trading price of our stock.

If we issue preferred stock, the net asset value and market value of our common stock may become more volatile.

We cannot assure that the issuance of preferred stock would result in a higher yield or return to the holders of our common stock. The issuance of preferred stock would likely cause the net asset value and market value of our common stock to become more volatile. If the dividend rate on the preferred stock were to approach the net rate of return on our investment portfolio, the benefit of leverage to the holders of our common stock would be reduced. If the dividend rate on the preferred stock were to exceed the net rate of return on our portfolio, the leverage would result in a lower rate of return to the holders of common stock than if we had not issued preferred stock. Any decline in the net asset value of our investment would be borne entirely by the holders of our common stock. Therefore, if the market value of our portfolio were to decline, the leverage would result in a greater decrease in net asset value to the holders of our common stock than if we were not leveraged through the issuance of preferred stock. This greater net asset value decrease would also tend to cause a greater decline in the market price of our common stock. We might be in danger of failing to maintain the required asset coverage of the preferred stock or of losing our ratings on the preferred stock or, in an extreme case, our current investment income might not be sufficient to meet the dividend requirements on the preferred stock. In order to counteract such an event, we might need to liquidate investments in order to fund a redemption of some or all of the preferred stock. In addition, we would pay (and the holders of our common stock would bear) all costs and expenses relating to the issuance and ongoing maintenance of the preferred stock, including higher incentive fees if our total return exceeds the dividend rate on the preferred stock. Holders of preferred stock may have different interests than holders of common stock and may at times have disproportionate influence over our affairs.

Holders of any preferred stock we might issue would have the right to elect members of our Board of Directors and class voting rights on certain matters.

Holders of any preferred stock we might issue, voting separately as a single class, would have the right to elect two members of our Board of Directors at all times and in the event dividends become two full years in arrears would have the right to elect a majority of the directors until such arrearage is completely eliminated. In

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addition, preferred stockholders have class voting rights on certain matters, including changes in fundamental investment restrictions and conversion to open-end status, and accordingly can veto any changes. Restrictions imposed on the declarations and payment of dividends or other distributions to the holders of our common stock and preferred stock, both by the 1940 Act and by requirements imposed by rating agencies, might impair our ability to maintain our qualification as a RIC for federal income tax purposes. While we would intend to redeem our preferred stock to the extent necessary to enable us to distribute our income as required to maintain our qualification as a RIC, there can be no assurance that such actions could be effected in time to meet the tax requirements.

Certain provisions of the Delaware General Corporation Law and our certificate of incorporation and bylaws could deter takeover attempts and have an adverse impact on the price of our common stock.

The Delaware General Corporation Law, our amended certificate of incorporation and our amended and restated bylaws contain provisions that may have the effect of discouraging a third party from making an acquisition proposal for us. These anti-takeover provisions may inhibit a change in control in circumstances that could give the holders of our common stock the opportunity to realize a premium over the market price of our common stock. We have also adopted measures that may make it difficult for a third party to obtain control of us, including provisions of our amended certificate of incorporation and amended and restated bylaws dividing our board of directors in three classes serving staggered three-year terms, requiring the affirmative vote of the holders of 75% of the then outstanding shares of our capital stock entitled to vote to remove a director for cause, and, subject to the rights of any holders of preferred stock, filling any vacancy on our Board of Directors only by a vote of a majority of the directors then in office. The classification of our Board of Directors and the limitations on removal of directors and filling of vacancies could have the effect of making it more difficult for a third party to acquire us, or of discouraging a third party from acquiring us. Our certificate of incorporation and bylaws also provide that special meetings of the stockholders may only be called by our Board of Directors, Chairman, Chief Executive Officer or Secretary. These provisions, as well as other provisions of our amended certificate of incorporation and our amended and restated bylaws, may delay, defer or prevent a transaction or a change in control that might otherwise be in the best interests of our stockholders.

None.

We do not own any real estate or other physical properties materially important to our operation. Our administrative and principal executive offices are located at 40 East 52^nd Street, New York, NY 10022. We believe that our office facilities are suitable and adequate for our business as it is contemplated to be conducted.

From time to time, we and the Advisor may be a party to certain legal proceedings incidental to the normal course of our business, including the enforcement of our rights under contracts with our portfolio companies. While we cannot predict the outcome of these legal proceedings with certainty, we do not expect that these proceedings will have a material effect on our consolidated financial statements.

Not applicable

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PART II

Price range of common stock

Our common stock is quoted on The NASDAQ Global Select Market under the symbol “BKCC”. The following table lists the high and low closing sales price for our common stock, the closing sales price as a percentage of net asset value per share (“NAV”), and quarterly distributions per share for the years ended December 31, 2013 and 2012.

Holders

At March 5, 2014, there were approximately 307 holders of record of our common stock. Such number of stockholders includes institutional or omnibus accounts that hold common stock for multiple underlying investors.

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Distributions

Our quarterly distributions, if any, are determined by our Board of Directors. Distributions are declared considering our estimate of annual taxable income available for distribution to stockholders and the amount of taxable income carried over from the prior year for distribution in the current year. We cannot assure stockholders that they will receive any distributions or distributions at a particular level. Distributions declared by the Company since July 25, 2005 (inception of operations) have been as follows:

Tax characteristics of all distributions are reported to stockholders on Form 1099 after the end of the calendar year.

We have elected to be taxed as a RIC under Subchapter M of the Code. In order to maintain favorable RIC tax treatment, we must distribute annually to our stockholders at least 90% of our ordinary income and realized

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net short-term capital gains in excess of realized net long-term capital losses, if any, out of the assets legally available for distribution. Under the Regulated Investment Company Modernization Act of 2010, capital losses incurred by the Company after December 31, 2010 will not be subject to expiration. In addition, such losses must be utilized prior to the losses incurred in the years preceding enactment. In order to avoid certain excise taxes imposed on RICs, we must distribute during each calendar year an amount at least equal to the sum of:

We may, at our discretion, carry forward taxable income in excess of calendar year distributions and pay a 4% excise tax on this income. If we choose to do so, all other things being equal, this would increase expenses and reduce the amounts available to be distributed to our stockholders. We will accrue excise tax on estimated taxable income as required. In addition, although we currently intend to distribute realized net capital gains (i.e., net long-term capital gains in excess of short-term capital losses), if any, at least annually, out of the assets legally available for such distributions, we may in the future decide to retain such capital gains for investment. There was no provision for federal excise taxes recorded for the years ended December 31, 2013, 2012 and 2011.

We maintain an “opt out” dividend reinvestment plan for our common stockholders. As a result, if we declare a distribution, stockholders’ cash distributions will be automatically reinvested in additional shares of our common stock, unless they specifically “opt out” of the dividend reinvestment plan so as to receive cash distributions. With respect to our distributions paid to stockholders during the years ended December 31, 2013, 2012 and 2011, distributions reinvested pursuant to our dividend reinvestment plan totaled $5,288,757, $5,591,912 and $8,021,087, respectively.

Under the terms of an amendment to our dividend reinvestment plan adopted on March 4, 2009, distributions may be made in newly issued or treasury shares of our common stock at a price equal to 95% of the market price on the payment date. This feature of the plan means that, under certain circumstances, we may issue shares of our common stock at a price below net asset value per share, which could cause our stockholders to experience dilution.

We may not be able to achieve operating results that will allow us to make distributions at a specific level or to increase the amount of these distributions from time to time. Also, we may be limited in our ability to make distributions due to the asset coverage test applicable to us as a BDC under the 1940 Act and due to provisions in our existing and future debt arrangements. If we do not distribute a certain percentage of our income annually, we will suffer adverse tax consequences, including possible loss of favorable RIC tax treatment. In addition, in accordance with GAAP and tax regulations, we include in income certain amounts that we have not yet received in cash, such as PIK interest, which represents contractual interest added to the loan balance that becomes due at the end of the loan term, or the accrual of original issue or market discount. Since we may recognize income before or without receiving cash representing such income, we may have difficulty meeting the requirement to distribute at least 90% of our investment company taxable income to obtain tax benefits as a RIC and may be subject to an excise tax.

In order to satisfy the annual distribution requirement applicable to RICs, we have the ability to declare a large portion of a distribution in shares of our common stock instead of in cash. As long as a portion of such distribution is paid in cash (which portion can be as low as 10% for our taxable years ending prior to 2012) and certain requirements are met, the entire distribution would be treated as a dividend for U.S. federal income tax purposes.

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Stock performance graph

The following graph compares the return on our common stock with that of the Standard & Poor’s 500 Stock Index and the Russell 2000 Index for the period June 27, 2007 (the date our common stock began to trade on The NASDAQ Global Select Market in connection with our initial public offering) through December 31, 2013. The graph assumes that, on June 27, 2007, a person invested $100 in each of our common stock (“BKCC” in the graph), the S&P 500 Index (“S&P 500”), and the Russell 2000 Index (“Russell 2000”). The graph measures total shareholder return, which takes into account both changes in stock price and distributions. It assumes that distributions paid are invested in like securities.

The graph and other information furnished under this part II Item 5 of this Form 10-K shall not be deemed to be “soliciting material” or to be “filed” with the SEC or subject to Regulation 14A or 14C, or to the liabilities of Section 18 of the Securities Exchange Act of 1934, or the Exchange Act. The stock price performance included in the above graph is not necessarily indicative of future stock performance.

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The unaudited Consolidated Statement of Operations Data, Consolidated Per Share Data and Consolidated Balance Sheet Data for each of the five years in the period ended December 31, 2013 are derived from our consolidated financial statements which have been audited by Deloitte & Touche LLP, our independent registered public accounting firm. This selected financial data should be read in conjunction with our consolidated financial statements and related notes thereto and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included elsewhere in this Annual Report.

Figures may not total due to rounding

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The information contained in this section should be read in conjunction with the Selected Financial Data and our consolidated financial statements and notes thereto appearing elsewhere in this Annual Report.

Forward-looking statements

This report, and other statements that we may make, may contain forward-looking statements with respect to future financial or business performance, strategies or expectations. Forward-looking statements are typically identified by words or phrases such as “trend,” “opportunity,” “pipeline,” “believe,” “comfortable,” “expect,” “anticipate,” “current,” “intention,” “estimate,” “position,” “assume,” “potential,” “outlook,” “continue,” “remain,” “maintain,” “sustain,” “seek,” “achieve” and similar expressions, or future or conditional verbs such as “will,” “would,” “should,” “could,” “may” or similar expressions.

Forward-looking statements are subject to numerous assumptions, risks and uncertainties, which change over time. Forward-looking statements speak only as of the date they are made, and we assume no duty to and do not undertake to update forward-looking statements. Actual results could differ materially from those anticipated in forward-looking statements and future results could differ materially from historical performance.

In addition to factors previously disclosed in our SEC reports and those identified elsewhere in this report, including the “Risk Factors” section, the following factors, among others, could cause actual results to differ materially from forward-looking statements or historical performance:

Overview

We were incorporated in Delaware on April 13, 2005, commenced operations with private funding on July 25, 2005 and completed our initial public offering on July 2, 2007. Our investment objective is to generate

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both current income and capital appreciation through our debt and equity investments. We invest primarily in middle-market companies and target investments throughout the capital structure that we believe provide an attractive risk-adjusted return. Although most of our investments are in senior and junior secured, unsecured and subordinated loans to U.S. private and certain public middle-market companies, we invest throughout the capital structure, which may include common and preferred equity, options and warrants, credit derivatives, high-yield bonds, distressed debt and other structured securities.

We are externally managed and have elected to be regulated as a BDC under the 1940 Act. As a BDC, we are required to comply with certain regulatory requirements. For instance, we generally have to invest at least 70% of our total assets in “qualifying assets,” including securities of private or thinly traded public U.S. companies, cash, cash equivalents, U.S. Government securities and high-quality debt investments that mature in one year or less.

Investments

Our level of investment activity can and does vary substantially from period to period depending on many factors, including the amount of debt and equity capital available to middle-market companies, the level of merger and acquisition activity, the general economic environment and the competitive environment for the types of investments we make.

As a BDC, we generally do not acquire any assets other than “qualifying assets” specified in the 1940 Act unless, at the time the acquisition is made, at least 70% of our total assets are qualifying assets (with certain limited exceptions). Qualifying assets include investments in “eligible portfolio companies.” Under the relevant SEC rules, the term “eligible portfolio company” includes most private companies, companies whose securities are not listed on a national securities exchange, and certain public companies that have listed their securities on a national securities exchange and have a market capitalization of less than $250 million. These rules also permit us to include as qualifying assets certain follow-on investments in companies that were eligible portfolio companies at the time of initial investment but that no longer meet the definition.

Revenues

We generate revenues primarily in the form of interest on the debt we hold, dividends on our equity interests and capital gains on the sale of warrants and other debt or equity interests that we acquire in portfolio companies. Our investments in fixed income instruments generally have an expected maturity of three to ten years, although we have no lower or upper constraint on maturity, and typically bear interest at a fixed or floating rate. Interest on our debt securities is generally payable quarterly or semi-annually. In some cases, our debt instruments and preferred stock investments may defer payments of cash interest or dividends or pay interest or dividends in-kind. Any outstanding principal amount of our debt securities and any accrued but unpaid interest will generally become due at the maturity date. In addition, we may generate revenue in the form of prepayment fees, commitment, origination, capital structuring or due diligence fees, fees for providing significant managerial assistance.

Expenses

Our primary operating expenses include the payment of a base management fee and, depending on our operating results, an incentive management fee, interest and credit facility fees, expenses reimbursable under the investment management agreement (the “Management Agreement”), administration fees and the allocable portion of overhead under the administration agreement. The base management fee and incentive management fee compensate the Advisor for work in identifying, evaluating, negotiating, closing and monitoring our investments. Our Management Agreement with the Advisor provides that we will reimburse the Advisor for costs and expenses incurred by the Advisor for office space rental, office equipment and utilities allocable to the Advisor under the Management Agreement, as well as any costs and expenses incurred by the Advisor relating to

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any non-investment advisory, administrative or operating services provided by the Advisor to us. We bear all other costs and expenses of our operations and transactions. including those relating to:

Additionally, the Management Agreement provides that the Advisor or its affiliates may be entitled to the Incentive Fee under certain circumstances. The determination of the Incentive Fee will result in the Advisor or its affiliates receiving no Incentive Fee payments if returns to our stockholders do not meet an 8.0% annualized rate of return and will result in the Advisor or its affiliates receiving less than the full amount of the Incentive Fee percentage until returns to stockholders exceed an approximate 13.3% annualized rate of return. Annualized rate of return in this context is computed by reference to our net asset value and does not take into account changes in the market price of our common stock. The determination of the Incentive Fee is subject to any applicable limitations under the 1940 Act and the Advisers Act.

Critical accounting policies

See Note 2 to the consolidated financial statements for a description of significant accounting policies and of recently issued accounting pronouncements.

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Financial and operating highlights

At December 31, 2013:

Investment Portfolio: $1,236.4 million

Net Assets: $709.7 million

Indebtedness (borrowings under Credit Facility, Convertible Notes, Term Loan and Senior Secured Notes): $478.0 million

Net Asset Value per share: $9.54

Net Asset Value per share (excluding all incentive management fees): $10.01

Portfolio Activity for the Year Ended December 31, 2013:

Cost of investments during period, including PIK: $533.7 million

Sales, repayments and other exits during period: $442.6 million

Number of portfolio companies at end of period: 51

Operating Results for the Year Ended December 31, 2013:

Net investment income per share: $0.64

Distributions declared per share: $1.04

Earnings per share: $1.25

Net investment income: $47.6 million

Net realized and unrealized gains: $45.4 million

Net increase in net assets from operations: $93.0 million

Net investment income per share, as adjusted¹: $0.92

Earnings per share, as adjusted¹: $1.53

Net investment income, as adjusted¹: $67.9 million

As Adjusted¹: Amounts are adjusted to remove the incentive management fee expense based on Gains, as required by GAAP, and to include only the incremental incentive management fee expense based on Income. The incremental incentive management fee is based on each trailing four-fiscal quarter period, applied to the current quarter’s incremental earnings, and without any reduction for incentive management fees paid during the prior three quarters. Amounts reflect the Company’s ongoing operating results and reflect the Company’s financial performance over time.

Portfolio and investment activity

During the year ended December 31, 2013, we invested approximately $533.7 million of gross assets. The new investments consisted primarily of senior loans secured by first liens ($88.2 million, or 16.5% of the total) or second liens ($289.1 million, or 54.2%), senior secured notes ($44.7 million, or 8.4%) and unsecured or subordinated debt securities and equity securities ($111.7 million or 20.9%). Additionally, we received proceeds from sales, repayments and other exits of investment principal of approximately $442.6 million during the year ended December 31, 2013.

At December 31, 2013, our portfolio of $1,236.4 million (at fair value) consisted 51 portfolio companies was invested 43% in senior secured loans, 22% in equity investments, 18% in senior secured notes, 16% in unsecured or subordinated debt securities and 1% in cash and cash equivalents. Our average investment by portfolio company at amortized cost, excluding investments below $5.0 million, was approximately $26.0 million at December 31, 2013. Our largest portfolio company investment by value was approximately $68.6 million and our five largest portfolio company investments by value comprised approximately 22% of our portfolio at December 31, 2013. At December 31, 2012, our portfolio of $1,070.7 million (at fair value) consisted of 47 portfolio companies was invested 52% in senior secured loans, 18% in senior secured notes, 16% in unsecured or subordinated debt securities, 13% in equity investments and 1% in cash and cash equivalents. Our average investment by portfolio company at amortized cost, excluding investments below $5.0 million, was

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approximately $26.9 million at December 31, 2012. Our largest portfolio company investment by value was approximately $57.0 million and our five largest portfolio company investments by value comprised approximately 23% of our portfolio at December 31, 2012.

The weighted average yield of the debt and income producing equity securities in our portfolio at fair value was 12.1% at December 31, 2013 and 12.6% at December 31, 2012. The weighted average yields on our senior secured loans and other debt securities at fair value were 11.4% and 13.1%, respectively, at December 31, 2013, versus 11.9% and 13.6%, at December 31, 2012. The weighted average yield of the debt and income producing equity securities in our portfolio at their current cost basis was 12.0% at December 31, 2013 and 12.2% at December 31, 2012. The weighted average yields on our senior secured loans and other debt securities at their current cost basis were 11.4% and 13.0%, respectively, at December 31, 2013, versus 11.4% and 13.5%, respectively, at December 31, 2012. Yields exclude common equity investments, preferred equity investments with no stated dividend rate, short-term investments, and cash and cash equivalents.

At December 31, 2013, 48% of our debt investments bore interest based on floating rates, such as LIBOR, the Federal Funds Rate or the Prime Rate, and 52% bore interest at fixed rates. The percentage of our total debt investments that bore floating rate interest subject to an interest rate floor was 45% at December 31, 2013. At December 31, 2012, 45% of our debt investments bore interest based on floating rates, such as LIBOR, the Federal Funds Rate or the Prime Rate, and 55% bore interest at fixed rates. The percentage of our total debt investments that bore floating rate interest subject to an interest rate floor was 40% at December 31, 2012.

Results of operations

Results comparisons are for the years ended December 31, 2013, 2012 and 2011.

Investment income

Investment income totaled $131,625,833, $147,290,596 and $131,502,538, respectively, for the years ended December 31, 2013, 2012 and 2011, of which $76,753,443, $91,319,290 and $73,521,854 were attributable to interest and fees on senior secured loans, $51,583,554, $52,725,965 and $52,922,002 to interest earned on other debt securities, $2,663,409, $3,236,501 and $4,056,403 to dividends from equity securities, $8,586, $8,840 and $26,562 to interest earned on short-term investments and cash equivalents, and $616,841, zero and $975,717 to other income, respectively. The decrease in investment income compared to the prior year reflects a decrease in interest income due to lower average investments and a lower weighted average yield during the period.

Expenses

Total expenses for the years ended December 31, 2013, 2012 and 2011 were $83,987,758, $73,629,064 and $58,623,747, respectively, which consisted of $31,148,437, $22,491,789 and $11,878,159 in incentive management fees, $21,629,665, $22,504,433 and $19,841,258 in base management fees, $20,913,520, $19,606,951 and $16,561,095 in interest expense and fees related to our debt, $2,213,638, $1,229,009 and $1,905,782 in professional fees, $2,066,737, $1,991,416 and $1,779,734 in investment advisor expenses, $1,985,234, $2,524,915 and $2,499,742 in amortization of debt issuance costs, $775,643, $528,559 and $1,173,754 in administrative services, $653,807, $467,563 and $417,564 in director fees, and $2,601,077, $2,284,429 and $2,566,659 in other expenses, respectively.

Incentive management fees for the years ended December 31, 2013, 2012 and 2011 were $31,148,437, $22,491,789 and $11,878,159, respectively. With respect to incentive management fees based on income, $10,889,088, $16,997,054 and $11,878,159 was earned for the years ended December 31, 2013, 2012 and 2011, respectively. In accordance with GAAP, a hypothetical liquidation is calculated for incentive fees based on gains. It should be noted, however, that a fee so calculated and accrued is not due and payable, if at all, until the end of each measurement period, or every June 30. Amounts accrued at December 31, 2013, 2012 and 2011 were $20,259,349, $5,494,735 and zero, respectively.

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Net investment income

Net investment income was $47,638,075, $73,661,532 and $72,878,791 respectively, for the years ended December 31, 2013, 2012 and 2011. The decrease in net investment income compared to the prior year is a result of a decrease in interest income due to lower average investments and a lower weighted average yield as well as an increase in incentive management fees.

Net realized gain or loss

Net realized loss of $64,363,418 for the year ended December 31, 2013 was the result of $64,196,484 in net losses realized from the disposition or restructuring of our investments and $166,934 in net loss realized on foreign currency transactions. Net realized loss on investments resulted primarily from the restructurings of Bankruptcy Management Solutions, Inc., AGY Holding Corp. and Dial Global Inc. Net realized loss of $89,118,419 for the year ended December 31, 2012 was the result of $87,932,990 in net losses realized from the disposition or restructuring of our investments and $1,185,429 in net loss realized on foreign currency transactions. Net realized loss on investments resulted primarily from the disposition of our debt and equity investments in Big Dumpster Acquisition, Inc. et al, American SportWorks LLC et al, and the restructuring of our equity investment in WBS Group Holdings, LLC. Excluding the realization of the tax provision, nearly the entire net realized loss on investments represents amounts that had been reflected in net unrealized depreciation on investments in prior periods. Foreign currency losses mainly represent net losses on forward currency contracts used to mitigate the impact that changes in foreign exchange rates would have on our investments denominated in foreign currencies. Net realized loss of $49,893,376 for the year ended December 31, 2011 was the result of $51,102,184 in net losses realized from the disposition or restructuring of our investments and $1,208,808 in net gain realized on foreign currency transactions. Net realized loss on investments for the year ended December 31, 2011 resulted primarily from the restructuring or disposition of our investments in Facet Technologies, LLC, Mattress Giant Corporation and Fitness Together Holdings, Inc. Foreign currency gains mainly represent gains on forward currency contracts used to mitigate the impact that changes in foreign exchange rates would have on our investments denominated in foreign currencies.

Net unrealized appreciation or depreciation

For the years ended December 31, 2013, 2012 and 2011, the change in net unrealized appreciation or depreciation was an increase in net unrealized appreciation of $109,714,146, $72,808,120 and $53,935,094, respectively. The increase in net unrealized appreciation for the year ended December 31, 2013 was comprised of an increase in net unrealized appreciation on investments of $110,244,945 and a net foreign currency translation loss of $530,799. The change was mainly a result of increases in the valuation of the investment portfolio as well as the reversal of previously reported accumulated unrealized depreciation realized during the period. The increase in net unrealized appreciation for the year ended December 31, 2012 was comprised of an increase in net unrealized appreciation on investments of $71,335,341 and a net foreign currency translation gain of $1,472,779. The change was mainly a result of the reversal of previously reported accumulated unrealized depreciation realized during the period. The decrease in net unrealized depreciation for the year ended December 31, 2011 was comprised of a decrease in net unrealized depreciation on investments of $54,695,534 and a net foreign currency translation loss of $760,440.

Net increase in net assets resulting from operations

The net increase in net assets resulting from operations was $92,988,803, $57,351,233 and $76,920,509 for the years ended December 31, 2013, 2012 and 2011, respectively. The change primarily reflects the increase in net realized and unrealized gains offset by a decrease in net investment income, for the year ended December 31, 2013.

Financial condition, liquidity and capital resources

During the year ended December 31, 2013, we generated operating cash flows primarily from interest earned and fees received on senior secured loans and other debt securities, as well as from sales of selected portfolio company investments or repayments of principal.

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Net cash used in operating activities for the year ended December 31, 2013 was $44,644,055. Our primary use of cash from operating activities during the period consisted of a net increase in net assets from operations of $92,988,803 offset by net of purchases of investments of $91,111,320 and the change in net realized and unrealized gain of $52,578,204.

Net cash provided by financing activities for the year ended December 31, 2013 was $53,996,698. Our primary source of cash for financing activities was $132,321,241 of proceeds from net borrowings under the Credit Facility offset by distributions of $71,705,637.

Contractual obligations

A summary of our significant contractual payment obligations for the repayment of outstanding borrowings at December 31, 2013 is as follows:

Off-balance sheet financing

In the normal course of business, the Company may enter into guarantees on behalf of portfolio companies. Under these arrangements, the Company would be required to make payments to third parties if the portfolio companies were to default on their related payment obligations. There were no such guarantees outstanding at December 31, 2013, 2012 or 2011.

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Distributions

Our quarterly distributions, if any, are determined by our Board of Directors. Distributions are declared considering our estimate of annual taxable income available for distribution to stockholders and the amount of taxable income carried over from the prior year for distribution in the current year. We cannot assure stockholders that they will receive any distributions or distributions at a particular level. Distributions declared by the Company since July 25, 2005 (inception of operations) have been as follows:

Tax characteristics of all distributions are reported to stockholders on Form 1099 after the end of the calendar year.

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We have elected to be taxed as a RIC under Subchapter M of the Code. In order to maintain favorable RIC tax treatment, we must distribute annually to our stockholders at least 90% of our ordinary income and realized net short-term capital gains in excess of realized net long-term capital losses, if any, out of the assets legally available for distribution. Under the Regulated Investment Company Modernization Act of 2010, capital losses incurred by the Company after December 31, 2010 will not be subject to expiration. In addition, such losses must be utilized prior to the losses incurred in the years preceding enactment. In order to avoid certain excise taxes imposed on RICs, we must distribute during each calendar year an amount at least equal to the sum of:

We may, at our discretion, carry forward taxable income in excess of calendar year distributions and pay a 4% excise tax on this income. If we choose to do so, all other things being equal, this would increase expenses and reduce the amounts available to be distributed to our stockholders. We accrue excise tax on estimated taxable income as required. In addition, although we currently intend to distribute realized net capital gains (i.e., net long-term capital gains in excess of short-term capital losses), if any, at least annually, out of the assets legally available for such distributions, we may in the future decide to retain such capital gains for investment. There was no provision for federal excise taxes recorded for the years ended December 31, 2013, 2012 and 2011.

We maintain an “opt out” dividend reinvestment plan for our common stockholders. As a result, if we declare a distribution, stockholders’ cash distributions will be automatically reinvested in additional shares of our common stock, unless they specifically “opt out” of the dividend reinvestment plan so as to receive cash distributions. With respect to our distributions paid to stockholders during the years ended December 31, 2013, 2012 and 2011, distributions reinvested pursuant to our dividend reinvestment plan totaled $5,288,757, $5,591,912 and $8,021,087, respectively.

Under the terms of an amendment to our dividend reinvestment plan adopted on March 4, 2009, distributions may be made in newly issued or treasury shares of our common stock at a price equal to 95% of the market price on the payment date. This feature of the plan means that, under certain circumstances, we may issue shares of our common stock at a price below net asset value per share, which could cause our stockholders to experience dilution.

We may not be able to achieve operating results that will allow us to make distributions at a specific level or to increase the amount of these distributions from time to time. Also, we may be limited in our ability to make distributions due to the asset coverage test applicable to us as a BDC under the 1940 Act and due to provisions in our existing and future debt arrangements. If we do not distribute a certain percentage of our income annually, we will suffer adverse tax consequences, including possible loss of favorable RIC tax treatment. In addition, in accordance with U.S. generally accepted accounting principles and tax regulations, we include in income certain amounts that we have not yet received in cash, such as PIK interest or the accrual of original issue or market discount. Since we may recognize income before or without receiving cash representing such income, we may have difficulty meeting the requirement to distribute at least 90% of our investment company taxable income to obtain tax benefits as a RIC and may be subject to an excise tax. In order to satisfy the annual distribution requirement applicable to RICs, we have the ability to declare a large portion of a dividend in shares of our common stock instead of in cash. As long as a portion of such dividend is paid in cash (which portion can be as low as 10% for our taxable years ending prior to 2012) and certain requirements are met, the entire distribution would be treated as a dividend for U.S. federal income tax purposes.

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Recent developments

On March 5, 2014 our Board of Directors declared a distribution of $0.26 per share, payable on April 3, 2014 to stockholders of record at the close of business on March 20, 2014.

Notice is hereby given in accordance with Section 23(c) of the 1940 Act that from time to time the Company may purchase shares of its common stock in the open market at prevailing market prices.

We are subject to financial market risks, including changes in interest rates. At December 31, 2013, 48% of our debt investments bore interest based on floating rates, such as LIBOR, the Federal Funds Rate or the Prime Rate. The interest rates on such investments generally reset by reference to the current market index after one to six months. At December 31, 2013, the percentage of our total debt investments that bore floating rate interest subject to an interest rate floor was 45%. Floating rate investments subject to a floor generally reset by reference to the current market index after one to six months only if the index exceeds the floor.

While hedging activities may mitigate our exposure to adverse changes in interest rates, they also may limit our ability to participate in the benefits of lower interest rates with respect to our portfolio of investments. There can be no assurance that we will be able to effectively hedge our interest rate risk. During the years ended December 31, 2013, 2012 and 2011, we did not engage in any interest rate hedging activity.

See the Index to Consolidated Financial Statements on page F-1.

None.

(a) Evaluation of Disclosure Controls and Procedures. The Company’s management, with the participation of the Company’s Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Exchange Act) as of the end of the period covered by this report. Based upon such evaluation, the Company’s Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures were effective, as of December 31, 2013, to provide assurance that information that is required to be disclosed by the Company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized, and reported, within the time periods specified by the SEC’s rules and forms. Disclosure controls and procedures, include without limitation, controls and procedures designed to ensure that information required to be disclosed by the Company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the Company’s management, including its Chief Executive Officer and Chief Financial Officer, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure.

(b) Management’s Report on Internal Control Over Financial Reporting. The Company’s management is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act). Under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer, the Company conducted an evaluation of the effectiveness of the Company’s internal control over financial reporting based on the criteria established in Internal Control—Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based on the Company’s evaluation under the framework in Internal Control—Integrated Framework, management concluded that the Company’s internal control over

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financial reporting was effective as of December 31, 2013. The Company’s internal control over financial reporting as of December 31, 2013 has been audited by our independent registered public accounting firm, Deloitte & Touche LLP, as stated in its report titled “Report of Independent Registered Public Accounting Firm” on the following page.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

(c) Attestation Report of the Registered Public Accounting Firm. Our independent registered public accounting firm, Deloitte & Touche LLP, has issued an attestation report on the Company’s internal control over financial reporting, which is set forth on the following page.

(d) Changes in Internal Control Over Financial Reporting. There have been no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act) during our most recently completed fiscal quarter, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

None

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of

BlackRock Kelso Capital Corporation:

We have audited the internal control over financial reporting of BlackRock Kelso Capital Corporation and subsidiaries (the “Company”) as of December 31, 2013, based on criteria established in Internal Control—Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission. The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed by, or under the supervision of, the company’s principal executive and principal financial officers, or persons performing similar functions, and effected by the company’s board of directors, management, and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of the inherent limitations of internal control over financial reporting, including the possibility of collusion or improper management override of controls, material misstatements due to error or fraud may not be prevented or detected on a timely basis. Also, projections of any evaluation of the effectiveness of the internal control over financial reporting to future periods are subject to the risk that the controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2013, based on the criteria established in Internal Control—Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated statement of assets and liabilities, including the consolidated schedule of investments, as of December 31, 2013, and the related consolidated statements of operations, changes in net assets, cash flows and financial highlights for the year then ended of the Company and our report dated March 6, 2014 expressed an unqualified opinion on those consolidated financial statements.

/s/ Deloitte & Touche LLP

New York, New York

March 6, 2014

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The information required by this item is contained in the Registrant’s definitive Proxy Statement for its 2014 Annual Stockholders Meeting to be filed with the Securities and Exchange Commission within 120 days after December 31, 2013 and is incorporated herein by reference.

The information required by this item is contained in the Registrant’s definitive Proxy Statement for its 2014 Annual Stockholders Meeting to be filed with the Securities and Exchange Commission within 120 days after December 31, 2013 and is incorporated herein by reference.

The information required by this item is contained in the Registrant’s definitive Proxy Statement for its 2014 Annual Stockholders Meeting to be filed with the Securities and Exchange Commission within 120 days after December 31, 2013 and is incorporated herein by reference.

The information required by this item is contained in the Registrant’s definitive Proxy Statement for its 2014 Annual Stockholders Meeting to be filed with the Securities and Exchange Commission within 120 days after December 31, 2013 and is incorporated herein by reference.

The information required by this item is contained in the Registrant’s definitive Proxy Statement for its 2014 Annual Stockholders Meeting to be filed with the Securities and Exchange Commission within 120 days after December 31, 2013 and is incorporated herein by reference.

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PART IV

The following documents are filed as part of this Annual Report: