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LIGAND PHARMACEUTICALS INC - Quarter Report: 2015 March (Form 10-Q)

Table of Contents

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
________________________________________________________________________________________
FORM 10-Q
________________________________________________________________________________________
x
Quarterly Report Pursuant to Section 13 or 15 (d) of the Securities Exchange Act of 1934
For the quarterly period ended March 31, 2015
or
o
Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
For the Transition Period From ______ to ______ .
Commission File Number: 001-33093
________________________________________________________________________________________
LIGAND PHARMACEUTICALS INCORPORATED
(Exact name of registrant as specified in its charter)
________________________________________________________________________________________
Delaware
77-0160744
(State or other jurisdiction of
incorporation or organization)
(I.R.S. Employer
Identification No.)
 
 
11119 North Torrey Pines Road, Suite 200
La Jolla, CA
92037
(Zip Code)
(Address of principal executive offices)
 
(858) 550-7500
(Registrant's Telephone Number, Including Area Code)
________________________________________________________________________________________
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 x No o
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 (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes x No o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one)
Large Accelerated Filer
x
 
Accelerated Filer
o
Non-Accelerated Filer
o
(Do not check if a smaller reporting company)
Smaller Reporting Company
o
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No x
As of May 1, 2015, the registrant had 19,666,748 shares of common stock outstanding.

Table of Contents


LIGAND PHARMACEUTICALS INCORPORATED
QUARTERLY REPORT

FORM 10-Q

TABLE OF CONTENTS
PART I. FINANCIAL INFORMATION
 
 
 
 
 
 
 
 
 
 
PART II. OTHER INFORMATION
 
 
 
 
 
 
 
 
 




Table of Contents

PART I.
FINANCIAL INFORMATION
ITEM 1.
FINANCIAL STATEMENTS
LIGAND PHARMACEUTICALS INCORPORATED
CONDENSED CONSOLIDATED BALANCE SHEETS
(Unaudited)
(in thousands, except share data)
 
March 31,
 
December 31,
 
2015
 
2014
ASSETS
 
 
 
Current assets:
 
 
 
Cash and cash equivalents (including $327 and $756 related to a VIE, respectively)
$
165,766

 
$
160,203

Short-term investments
11,459

 
7,133

Accounts receivable
7,423

 
12,634

Inventory
2,821

 
269

Capitalized IPO expenses, VIE
2,408

 
2,268

Other current assets
926

 
1,520

Current debt issuance costs
822

 
809

Current co-promote termination payments receivable
88

 
322

Total current assets
191,713

 
185,158

Restricted cash and investments
600

 
1,261

Property and equipment, net
440

 
486

Intangible assets, net
50,129

 
50,723

Goodwill
12,238

 
12,238

Commercial license rights
4,568

 
4,568

Long-term debt issuance costs
3,177

 
3,388

Other assets
358

 
207

Total assets
$
263,223

 
$
258,029

LIABILITIES AND STOCKHOLDERS' EQUITY
 
 
 
Current liabilities:
 
 
 
Accounts payable (including $2,397 and $2,211 related to a VIE, respectively)
$
7,442

 
$
7,698

Accrued liabilities
4,263

 
4,866

Current contingent liabilities
3,692

 
6,796

Current deferred income taxes
258

 
257

Current note payable, VIE
348

 
334

Current co-promote termination liability
88

 
322

Current lease exit obligations
1,999

 
2,356

Current deferred revenue
67

 
150

Total current liabilities
18,157

 
22,779

Long-term deferred revenue, net
2,085

 
2,085

Long-term lease exit obligations
577

 
934

Deferred income taxes
2,797

 
2,792

Long-term contingent liabilities
8,213

 
8,353

Long-term debt, net
198,219

 
195,908

Other long-term liabilities
780

 
770

Total liabilities
230,828

 
233,621

Commitments and Contingencies

 

Stockholders' equity:
 
 
 
Common stock, $0.001 par value; 33,333,333 shares authorized; 19,658,357 and 19,575,150 shares issued and outstanding at March 31, 2015 and December 31, 2014, respectively
20

 
20

Additional paid-in capital
684,355

 
680,660

Accumulated other comprehensive income
9,334

 
4,953

Accumulated deficit
(658,561
)
 
(659,315
)
Total stockholders' equity attributable to Ligand Pharmaceuticals
35,148

 
26,318

Noncontrolling interests
(2,753
)
 
$
(1,910
)
Total liabilities and stockholders' equity
$
263,223

 
$
258,029

See accompanying notes.

3
Table of Contents

LIGAND PHARMACEUTICALS INCORPORATED
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(Unaudited)
(in thousands, except share data)

 
Three months ended
 
March 31,
 
2015
 
2014
Revenues:
 
 
 
Royalties
$
10,287

 
$
7,850

Material sales
3,729

 
5,715

Collaborative research and development and other revenues
586

 
2,393

Total revenues
14,602

 
15,958

Operating costs and expenses:
 
 
 
Cost of sales
1,074

 
2,451

Research and development
3,962

 
3,131

General and administrative
5,994

 
5,072

Lease exit and termination costs
223

 
204

Total operating costs and expenses
11,253

 
10,858

Income from operations
3,349

 
5,100

Other (expense) income:
 
 
 
Interest expense, net
(2,973
)
 
(248
)
Increase in contingent liabilities
(3
)
 
(1,948
)
Other, net
(447
)
 
(754
)
Total other expense, net
(3,423
)
 
(2,950
)
(Loss) income before income taxes
(74
)
 
2,150

Income tax expense
(15
)
 
(53
)
(Loss) income from operations
(89
)
 
2,097

Net (loss) income including noncontrolling interests:
(89
)
 
2,097

Less: Net loss attributable to noncontrolling interests
(843
)
 
—

Net income
$
754

 
$
2,097

 
 
 
 
Per share amounts attributable to Ligand common shareholders:
 
 
 
Basic and diluted net income per share
$
0.04

 
$
0.10

 
 
 
 
Weighted-average number of common shares-basic
19,611,881

 
20,600,683

Weighted-average number of common shares-diluted
20,630,788

 
21,208,023


See accompanying notes.

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LIGAND PHARMACEUTICALS INCORPORATED
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
(Unaudited)
(in thousands)

 
Three months ended
 
March 31,
 
2015
 
2014
Net income
$
754

 
$
2,097

Unrealized net gain on available-for-sale securities, net of tax of $0
4,614

 
8,222

Less: Reclassification of net realized gains included in net income
(234
)
 
(193
)
Comprehensive income
$
5,134

 
$
10,126


See accompanying notes.


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LIGAND PHARMACEUTICAL INCORPORATED
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(Unaudited)
(in thousands)
 
Three months ended
 
March 31,
 
2015
 
2014
Operating activities
 
 
 
Net income (loss) including noncontrolling interests
$
(89
)
 
$
2,097

Adjustments to reconcile net (loss) income including noncontrolling interests to net cash provided by operating activities:
 
 
 
Non-cash change in estimated fair value of contingent liabilities
3

 
1,948

Realized gain (loss) on sale of short-term investment
447

 
(481
)
Gain on write-off of assets
—

 
109

Depreciation and amortization
650

 
668

Amortization of debt discount and issuance fees
2,509

 
—

Stock-based compensation
2,914

 
2,067

Deferred income taxes
6

 
53

Accretion of note payable
14

 
100

Other
(1
)
 
—

Changes in operating assets and liabilities:
 
 
 
     Accounts receivable
5,211

 
(2,451
)
     Inventory
(150
)
 
(557
)
     Other current assets
445

 
118

     Other long-term assets
(291
)
 
24

     Accounts payable and accrued liabilities
(4,667
)
 
(1,002
)
     Restricted cash
661

 
—

     Deferred revenue
(83
)
 
(116
)
Net cash provided by operating activities
7,579

 
2,577

Investing activities
 
 
 
Payments to CVR holders and other contingency payments
(3,247
)
 
(1,618
)
Purchases of property and equipment
(10
)
 
(6
)
Proceeds from sale of property and equipment
1

 
—

Proceeds from sale of short-term investments
459

 
626

Net cash used in investing activities
(2,797
)
 
(998
)
Financing activities
 
 
 
Repayment of debt
—

 
(3,436
)
Net proceeds from stock option exercises and ESPP
781

 
3,195

Net cash provided by (used in) financing activities
781

 
(241
)
Net increase in cash and cash equivalents
5,563

 
1,338

Cash and cash equivalents at beginning of period
160,203

 
11,639

Cash and cash equivalents at end of period
$
165,766

 
$
12,977


Supplemental disclosure of cash flow information
 
 
 
Interest paid
$
903

 
$
110

Taxes paid
$
11

 
$
—

Supplemental schedule of non-cash activity
 
 
 
Accrued inventory purchases
$
2,402

 
$
—

Unrealized gain on AFS investments
$
4,614

 
$
8,222


See accompanying notes

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Table of Contents

LIGAND PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements
(Unaudited)

1. Basis of Presentation

Ligand Pharmaceuticals Incorporated, a Delaware corporation (the "Company" or "Ligand") is a biopharmaceutical company with a business model that is based upon the concept of developing or acquiring royalty revenue generating assets and coupling them with a lean corporate cost structure. By diversifying the portfolio of assets across numerous technology types, therapeutic areas, drug targets, and industry partners, the Company offers investors an opportunity to invest in the increasingly complicated and unpredictable pharmaceutical industry. These therapies address the unmet medical needs of patients for a broad spectrum of diseases including hepatitis, multiple myeloma, muscle wasting, Alzheimer’s disease, dyslipidemia, diabetes, anemia, asthma, focal segmental glomerulosclerosis, ("FSGS"), and osteoporosis. Ligand has established multiple alliances with the world’s leading pharmaceutical companies including Novartis, Amgen, Inc., Merck, Pfizer, and Baxter International. The Company’s principal market is the United States. The Company sold its Oncology Product Line ("Oncology") and Avinza Product Line ("Avinza") on October 25, 2006 and February 26, 2007, respectively. The operating results for Oncology and Avinza have been presented in the accompanying condensed consolidated financial statements as "Discontinued Operations."
 
The Company had net income of $0.8 million for the quarter ended March 31, 2015. As of March 31, 2015, the Company’s accumulated deficit was approximately $658.6 million and the Company had working capital of approximately $173.6 million. The Company believes that its currently available cash, cash equivalents and short-term investments, as well as its current and future royalty, license and milestone revenues and Captisol material sales will be sufficient to fund operating and capital requirements, at a minimum, through the next 12 months.  The Company expects to build cash in future months as it continues to generate significant cash flows from operations. The ability of the Company to achieve its operational targets is dependent upon the Company’s ability to further implement its business plan and generate sufficient operating cash flow.

Principles of Consolidation
    
The accompanying consolidated financial statements include Ligand and its wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation.

Basis of Presentation

The Company’s accompanying unaudited condensed consolidated financial statements as of March 31, 2015 and for the three months ended March 31, 2015 and 2014 have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States for annual financial statements. The Company’s unaudited condensed consolidated balance sheet at December 31, 2014 has been derived from the audited financial statements at that date, but does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of the financial position and results of operations of the Company and its subsidiaries, have been included. Operating results for the three months ended March 31, 2015 are not necessarily indicative of the results that may be expected for the year ending December 31, 2015. These financial statements should be read in conjunction with the consolidated financial statements and notes therein included in the Company’s annual report on Form 10-K for the year ended December 31, 2014.

Use of Estimates

The preparation of condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States requires the use of estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, expenses, contingent assets and liabilities, definite and indefinite lived intangible assets, goodwill, co-promote termination payments receivable and co-promote termination liabilities, uncertain tax positions, deferred revenue, lease exit liability and income tax net operating loss carryforwards during the reporting period. The Company’s critical accounting policies are those that are both most important to the Company’s financial condition and results of operations and require the most difficult, subjective or complex judgments on the part of management in their application, often as a result of the need to make estimates about the effect of matters that are inherently uncertain. Because of the uncertainty of factors surrounding the estimates or judgments used in the preparation of the condensed consolidated financial statements, actual results may materially vary from these estimates.


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Income Per Share

Basic income per share is calculated by dividing net income by the weighted-average number of common shares and vested restricted stock units outstanding. Diluted income per share is computed by dividing net income by the weighted-average number of common shares and vested restricted stock units outstanding and the weighted-average number of dilutive common stock equivalents, including stock options, non-vested restricted stock units, convertible notes and warrants. Common stock equivalents are only included in the diluted income per share calculation when their effect is dilutive. The total number of potential common shares excluded from the computation of diluted income per share because their inclusion would have been anti-dilutive was 4.5 million and 1.0 million, as of March 31, 2015 and 2014, respectively.

The following table sets forth the computation of basic and diluted net income per share for the periods indicated (in thousands, except per share amounts):

 
Three months ended
 
March 31,
 
2015
 
2014
Net income
$
754

 
$
2,097

 
 
 
 
Shares used to compute basic income per share
19,611,881

 
20,600,683

Dilutive potential common shares:
 
 
 
Restricted stock
61,538

 
60,602

     Stock options
957,369

 
546,738

Shares used to compute diluted income per share
20,630,788

 
21,208,023

 
 
 
 
Basic per share amounts:
 
 
 
Net income
$
0.04

 
$
0.10

 
 
 
 
Diluted per share amounts:
 
 
 
Net income
$
0.04

 
$
0.10


Cash and Cash Equivalents
Cash and cash equivalents consist of cash, money market accounts, and certificates of deposit with original maturities of three months or less from the date of acquisition.
Short-term Investments
Securities received by the Company as a result of a milestone payment from licensees are considered short-term investments and have been classified by management as available-for-sale. Such investments are carried at fair value, with unrealized gains and losses included in the statement of comprehensive income (loss). The Company determines the cost of investments based on the specific identification method.

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Restricted Cash
Restricted cash and investments consist of certificates of deposit held with a financial institution as collateral under a facility lease and third-party service provider arrangements.
The following table summarizes the various investment categories at March 31, 2015 and December 31, 2014 (in thousands):

 
Cost
 
Gross unrealized
gains
 
Gross unrealized
losses
 
Estimated
fair value
March 31, 2015
 
 
 
 
 
 
 
Short-term investments
$
2,125

 
$
9,334

 
$
—

 
$
11,459

Certificates of deposit-restricted
600

 
—

 
—

 
600

 
$
2,725

 
$
9,334

 
$
—

 
$
12,059

December 31, 2014
 
 
 
 
 
 
 
Short-term investments
$
2,179

 
$
4,954

 
$
—

 
$
7,133

Certificates of deposit-restricted
1,261

 
—

 
—

 
1,261

 
$
3,440

 
$
4,954

 
$
—

 
$
8,394


Concentrations of Credit Risk

Financial instruments that potentially subject the Company to significant concentrations of credit risk consist primarily of cash equivalents, investments and accounts receivable.

The Company invests its excess cash principally in U.S. government debt securities, investment-grade corporate debt securities and certificates of deposit. The Company has established guidelines relative to diversification and maturities that maintain safety and liquidity. These guidelines are periodically reviewed and modified to take advantage of trends in yields and interest rates. The Company did not experience any significant losses on its cash equivalents, short-term investments or restricted investments for either of the periods ending March 31, 2015 and December 31, 2014.

As of March 31, 2015 and December 31, 2014, cash deposits held at financial institutions in excess of FDIC insured amounts of $250,000 were approximately $107.3 million and $91.7 million, respectively.

Accounts receivable from three customers were 77% of total accounts receivable at March 31, 2015. Accounts receivable from two customers was 64% of total accounts receivable at December 31, 2014. 

The Company currently obtains Captisol from a single supplier.  If this supplier were not able to supply the requested amounts of Captisol and the Company's existing inventory was depleted, the Company would be unable to continue to derive revenues from the sale of Captisol until it obtained an alternative source, which might take a considerable length of time. The Company maintains inventory of Captisol, which has a five year shelf life, at three geographically spread storage locations in the United States and Europe.  If a disaster were to strike any of these locations, it could lead to supply interruptions.

Inventory

Inventory is stated at the lower of cost or market value. The Company determines cost using the first-in, first-out method. The Company analyzes its inventory levels periodically and writes down inventory to its net realizable value if it has become obsolete, has a cost basis in excess of its expected net realizable value or is in excess of expected requirements. There were no write downs related to obsolete inventory recorded for the three months ended March 31, 2015 and 2014.

Allowance for Doubtful Accounts

The Company maintains an allowance for doubtful accounts based on the best estimate of the amount of probable losses in the Company’s existing accounts receivable. Accounts receivable that are outstanding longer than their contractual payment terms, ranging from 30 to 90 days, are considered past due. When determining the allowance for doubtful accounts, several factors are taken into consideration, including historical write-off experience and review of specific customer accounts for collectability. Account balances are charged off against the allowance after collection efforts have been exhausted and the

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potential for recovery is considered remote. There was no allowance for doubtful accounts included in the balance sheets at March 31, 2015 and 2014.

Property and Equipment

Property and equipment is stated at cost and consists of the following (in thousands):

 
March 31,
 
December 31,
 
2015
 
2014
Lab and office equipment
$
2,176

 
$
2,232

Leasehold improvements
273

 
273

Computer equipment and software
632

 
624

 
3,081

 
3,129

Less accumulated depreciation and amortization
(2,641
)
 
(2,643
)
     Total property and equipment, net
$
440

 
$
486


Depreciation of equipment is computed using the straight-line method over the estimated useful lives of the assets, which range from three to ten years. Leasehold improvements are amortized using the straight-line method over their estimated useful lives or their related lease term, whichever is shorter. Depreciation expense recognized for each of the three months ended March 31, 2015 and 2014 was $0.1 million. Depreciation expense is included in operating expenses.

Goodwill and Other Identifiable Intangible Assets

Goodwill and other identifiable intangible assets consist of the following (in thousands):

 
March 31,
 
December 31,
 
2015
 
2014
Indefinite lived intangible assets
 
 
 
     Acquired in-process research and development
$
12,556

 
$
12,556

     Goodwill
12,238

 
12,238

Definite lived intangible assets
 
 
 
     Complete technology
15,267

 
15,267

          Less: Accumulated amortization
(3,189
)
 
(2,999
)
     Trade name
2,642

 
2,642

          Less: Accumulated amortization
(553
)
 
(519
)
     Customer relationships
29,600

 
29,600

          Less: Accumulated amortization
(6,194
)
 
(5,824
)
Total goodwill and other identifiable intangible assets, net
$
62,367

 
$
62,961


Amortization of definite-lived intangible assets is computed using the straight-line method over the estimated useful life of the asset of 20 years. Amortization expense of $0.6 million was recognized for each of the three months ended March 31, 2015 and 2014. Estimated amortization expense for the years ending December 31, 2015 through 2019 is $2.4 million per year.    

The Company accounts for goodwill and other intangible assets in accordance with Accounting Standards Codification ("ASC") Topic 350 - Intangibles - Goodwill and Other which, among other things, establishes standards for goodwill acquired in a business combination, eliminates the amortization of goodwill and requires the carrying value of goodwill and certain non-amortizing intangibles to be evaluated for impairment on an annual basis. The Company uses the income approach and the market approach, each weighted at 50%, when performing its goodwill impairment analysis. For the income approach, the Company considers the present value of future cash flows and the carrying value of its assets and liabilities, including goodwill. The market approach is based on an analysis of revenue multiples of peer public companies. If the carrying value of the assets and liabilities, including goodwill, were to exceed the Company’s estimation of the fair value, the Company would record an impairment charge in an amount equal to the excess of the carrying value of goodwill over the implied fair value of the

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goodwill. The Company performs an evaluation of goodwill and other intangibles as of December 31 of each year, absent any indicators of earlier impairment, to ensure that impairment charges, if applicable, are reflected in the Company's financial results before December 31 of each year. When it is determined that impairment has occurred, a charge to operations is recorded. Goodwill and other intangible asset balances are included in the identifiable assets of the business segment to which they have been assigned. Any goodwill impairment, as well as the amortization of other purchased intangible assets, is charged against the respective business segments' operating income.
Acquired In-Process Research and Development
    
Intangible assets related to acquired in-process research and development ("IPR&D") are considered to be indefinite-lived until the completion or abandonment of the associated research and development efforts. During the period the assets are considered to be indefinite-lived, they will not be amortized but will be tested for impairment on an annual basis and between annual tests if the Company becomes aware of any events occurring or changes in circumstances that would indicate a reduction in the fair value of the IPR&D projects below their respective carrying amounts. If and when development is complete, which generally occurs if and when regulatory approval to market a product is obtained, the associated assets would be deemed definite-lived and would then be amortized based on their respective estimated useful lives at that point in time. For each of the three months ended March 31, 2015 and 2014, there was no impairment of IPR&D.

Commercial license rights
    
Commercial license rights represent a portfolio of future milestone and royalty payment rights acquired in accordance with the Royalty Stream and Milestone Payments Purchase Agreement entered into with Selexis SA ("Selexis") in April 2013.  The portfolio consists of over 15 Selexis commercial license agreement programs with various pharmaceutical-company counterparties.  The purchase price was $4.6 million, inclusive of acquisition costs. The Company paid $3.6 million upon closing and paid an additional $1.0 million in April 2014. Individual commercial license rights acquired under the agreement are carried at allocated cost and approximate fair value. The carrying value of the license rights will be reduced on a pro-rata basis as revenue is realized over the term of the agreement. Declines in the fair value of individual license rights below their carrying value that are deemed to be other than temporary are reflected in earnings in the period such determination is made. As of March 31, 2015, management does not believe there have been any events or circumstances indicating that the carrying amount of its commercial license rights may not be recoverable.

Other Current Assets

Other current assets consist of the following (in thousands):

 
March 31,
 
December 31,
 
2015
 
2014
Prepaid expenses
$
896

 
$
835

Other receivables
30

 
685

     Total current assets
$
926

 
$
1,520


Accrued Liabilities

Accrued liabilities consist of the following (in thousands):

 
March 31,
 
December 31,
 
2015
 
2014
Compensation
795

 
1,708

Professional fees
359

 
459

Amounts owed to former licensees
1,627

 
925

Royalties owed to third parties
809

 
705

Other
673

 
1,069

     Total accrued liabilities
$
4,263

 
$
4,866



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Other Long-Term Liabilities

Other long-term liabilities consist of the following (in thousands):

 
March 31,
 
December 31,
 
2015
 
2014
Deposits
$
430

 
$
411

Deferred rent
318

 
327

Other
32

 
32

     Total other long-term liabilities
$
780

 
$
770

Contingent Liabilities
    
In connection with the Company’s acquisition of CyDex in January 2011, the Company recorded a $17.6 million contingent liability, inclusive of the $4.3 million payment made in January 2012, for amounts potentially due to holders of the CyDex contingent value rights ("CVRs") and former license holders. The liability is periodically assessed based on events and circumstances related to the underlying milestones, royalties and material sales. Any change in fair value is recorded in the Company’s consolidated statements of operations. The carrying amount of the liability may fluctuate significantly and actual amounts paid under the CVR agreements may be materially different than the carrying amount of the liability. The fair value of the liability at March 31, 2015 and December 31, 2014 was $9.4 million and $11.5 million, respectively. The Company recorded a fair-value adjustment to increase the liability by $1.2 million offset by a revenue-sharing payment of $3.2 million for the three months ended March 31, 2015. For the three months ended March 31, 2014, the Company recorded a fair-value adjustment to decrease the liability by $0.5 million offset by a revenue-sharing payment of $1.6 million.
    
In connection with the Company’s acquisition of Metabasis in January 2010, the Company issued to Metabasis stockholders four tradable CVRs, one CVR from each of four respective series of CVR, for each Metabasis share. The CVRs will entitle Metabasis stockholders to cash payments as frequently as every six months as cash is received by the Company from proceeds from the sale or partnering of any of the Metabasis drug development programs, among other triggering events. The fair values of the CVRs are remeasured at each reporting date through the term of the related agreement. Changes in the fair values are reported in the statement of operations as income (decreases) or expense (increases). The carrying amount of the liability may fluctuate significantly based upon quoted market prices and actual amounts paid under the agreements may be materially different than the carrying amount of the liability. The fair value of the liability was estimated to be $2.5 million and $3.7 million as of March 31, 2015 and December 31, 2014, respectively. The Company recorded a decrease in the liability for Metabasis-related CVRs of $1.2 million and an increase of $2.5 million for the three months ended March 31, 2015 and 2014, respectively.

Fair Value of Financial Instruments
Fair value is defined as the exit price that would be received to sell an asset or paid to transfer a liability. Fair value is a market-based measurement that should be determined using assumptions that market participants would use in pricing an asset or liability. The Company establishes a three-level hierarchy to prioritize the inputs used in measuring fair value. The levels are described in the below with level 1 having the highest priority and level 3 having the lowest:
Level 1 - Quoted prices in active markets;
Level 2 - Inputs other than the quoted prices in active markets that are observable either directly or indirectly; and
Level 3 - Unobservable inputs in which there is little or no market data, which require the Company to develop its own assumptions.
The Company’s short-term investments include investments in equity securities which the Company received as a result of event-based and upfront payments from licensees. Additionally, there is a liability related to the investment in equity securities for amounts owed to former license holders. The Metabasis CVR liability is marked-to-market at each reporting period based upon the quoted market prices of the underlying CVR. The fair value of the CyDex contingent liabilities are determined at each reporting period based upon an income valuation model. The co-promote termination payments receivable represents a non-interest-bearing receivable for future payments to be made by Pfizer related to Avinza product sales and is recorded at its fair value. The receivable and liability will remain equal, and are adjusted each quarter for changes in the fair value of the obligation including any changes in the estimate of future net Avinza product sales.

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The Company evaluates its financial instruments at each reporting period to determine if any transfers between the various three-level hierarchy have occurred and appropriately reclassifies its financial instruments to the appropriate level within the hierarchy.
Revenue Recognition

Royalties on sales of products commercialized by the Company’s partners are recognized in the quarter reported by the respective partner. Generally, the Company receives royalty reports from its licensees approximately one quarter in arrears due to the fact that its agreements require partners to report product sales between 30 and 60 days after the end of the quarter. The Company recognizes royalty revenues when it can reliably estimate such amounts and collectability is reasonably assured. Under this accounting policy, the royalty revenues reported are not based upon estimates and such royalty revenues are typically reported to the Company by its partners in the same period in which payment is received.
Revenue from material sales of Captisol is recognized upon transfer of title, which normally passes upon shipment to the customer, provided all other revenue recognition criteria have been met; however, we do not recognize revenue until all applicable substantive customer acceptance requirements have been met. The Company’s credit and exchange policy includes provisions for the return of product between 30 to 90 days, depending on the specific terms of the individual agreement, when that product (1) does not meet specifications, (2) is damaged in shipment (in limited circumstances where title does not transfer until delivery), or (3) is exchanged for an alternative grade of Captisol. All product returns are subject to approval by the Company and a 20% restocking fee. To date, product returns by customers have not been material to net material sales in any related period. The Company records revenue net of product returns, if any, and sales tax collected and remitted to government authorities during the period.

The Company analyzes its revenue arrangements and other agreements to determine whether there are multiple elements that should be separated and accounted for individually or as a single unit of accounting. For multiple element contracts, arrangement consideration is allocated at the inception of the arrangement to all deliverables on the basis of relative selling price, using a hierarchy to determine selling price. Management first considers vendor-specific objective evidence ("VSOE"), then third-party evidence ("TPE") and if neither VSOE nor TPE exist, the Company uses its best estimate of selling price.
Many of the Company's revenue arrangements involve the bundling of a license with the option to purchase manufactured product. Licenses are granted to pharmaceutical companies for the use of Captisol in the development of pharmaceutical compounds. The licenses may be granted for the use of the Captisol product for all phases of clinical trials and through commercial availability of the host drug or may be limited to certain phases of the clinical trial process. Management believes that the Company's licenses have stand-alone value at the outset of an arrangement because the customer obtains the right to use Captisol in its formulations without any additional input by the Company.

Other nonrefundable, upfront license fees are recognized as revenue upon delivery of the license, if the license is determined to have standalone value that is not dependent on any future performance by the Company under the applicable collaboration agreement. Nonrefundable contingent event-based payments are recognized as revenue when the contingent event is met, which is usually the earlier of when payments are received or collections are assured, provided that it does not require future performance by the Company. The Company occasionally has sub-license obligations related to arrangements for which it receives license fees, milestones and royalties. The Company evaluates the determination of gross versus net reporting based on each individual agreement.
Sales-based contingent payments from partners are accounted for similarly to royalties, with revenue recognized upon achievement of the sales targets assuming all other revenue recognition criteria for milestones are met. Revenue from development and regulatory milestones is recognized when earned, as evidenced by written acknowledgement from the collaborator, provided that (1) the milestone event is substantive, its achievability was not reasonably assured at the inception of the agreement, and the Company has no further performance obligations relating to that event, and (2) collectability is reasonably assured. If these criteria are not met, the milestone payment is recognized over the remaining period of the Company’s performance obligations under the arrangement.    
Revenue from research funding under our collaboration agreements is earned and recognized on a percentage-of completion basis as research hours are incurred in accordance with the provisions of each agreement.
In May 2014, the Company entered into a licensing agreement and research collaboration with Omthera Pharmaceuticals. The research collaboration targets the development of novel products that utilize the proprietary Ligand developed LTP TECHNOLOGY™ to improve lipid-lowering activity of certain omega-3 fatty acids. The Company is eligible

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to receive compensation and reimbursement from Omthera for internal research efforts and external costs incurred, as well as development and regulatory event-based payments. The completion of a proof of concept under the development program would trigger a $1.0 million payment which is determined to be a milestone under the milestone method of accounting as (1) it is an event that can only be achieved in part on the Company's past performance, (2) there was substantive uncertainty at the date the arrangement was entered into that the event would be achieved and (3) it results in additional payment being due to the Company. None of the other event-based payments represents a milestone under the milestone method of accounting. No event based payment or milestone was achieved during the periods presented. The Company received $0.5 million from Omthera in 2014 under the agreement and recognized $0.4 million as collaborative revenue based on the percentage of completion of the research program at December 31, 2014. No milestone payment or contingent payment was received in 2014.

Accounting for Stock-Based Compensation

Stock-based compensation expense for awards to employees and non-employee directors is recognized on a straight-line basis over the vesting period until the last tranche vests. Compensation cost for consultant awards is recognized over each separate tranche’s vesting period. The following table summarizes stock-based compensation expense recorded as components of research and development expenses and general and administrative expenses for the periods indicated (in thousands):

 
Three months ended
 
March 31,
 
2015
 
2014
Stock-based compensation expense as a component of:
 
 
 
Research and development expenses
$
920

 
$
689

General and administrative expenses
1,994

 
1,378

 
$
2,914

 
$
2,067


The fair-value for options that were awarded to employees and directors was estimated at the date of grant using the Black-Scholes option valuation model with the following weighted-average assumptions:

 
Three months ended
 
March 31,
 
2015
 
2014
Risk-free interest rate
1.8%
 
1.9%
Dividend yield
—
 
—
Expected volatility
58%
 
69%
Expected term
6.6
 
6.4
Forfeiture rate
8.5%
 
9.7%

The risk-free interest rate is based on the U.S. Treasury yield curve at the time of the grant. The expected term of the employee and non-employee director options is the estimated weighted-average period until exercise or cancellation of vested options (forfeited unvested options are not considered) based on historical experience. The expected term for consultant awards is the remaining period to contractual expiration. Volatility is a measure of the expected amount of variability in the stock price over the expected life of an option expressed as a standard deviation. In making this assumption, the Company used the historical volatility of the Company’s stock price over a period equal to the expected term. The forfeiture rate is based on historical data at the time of the grant.

Cost of Material Sales

The Company determines cost using the first-in, first-out method. Cost of goods sold include all costs of purchase and other costs incurred in bringing the inventories to their present location and condition, including costs to store and distribute.

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Preclinical Study and Clinical Trial Accruals
    
Substantial portions of the Company’s preclinical studies and all of the Company's clinical trials have been performed by third-party laboratories, contract research organizations, or other vendors (collectively "CROs"). Some CROs bill monthly for services performed, while others bill based upon milestone achievement. The Company accrues for each of the agreements it has with CROs on a monthly basis. For preclinical studies, accruals are estimated based upon the percentage of work completed and the contract milestones achieved. For clinical studies, accruals are estimated based upon a percentage of work completed, the number of patients enrolled and the duration of the study. The Company monitors patient enrollment, the progress of clinical studies and related activities to the extent possible through internal reviews of data reported to it by the CROs, correspondence with the CROs and clinical site visits. The Company's estimates are dependent upon the timelines and accuracy of the data provided by its CROs regarding the status of each program and total program spending. The Company periodically evaluates its estimates to determine if adjustments are necessary or appropriate based on information it receives concerning changing circumstances, and conditions or events that may affect such estimates. No material adjustments to preclinical study and clinical trial accrued expenses have been recognized to date.

Research and Development

Research and development expense consists of labor, material, equipment, and allocated facility costs of the Company’s scientific staff who are working pursuant to the Company’s collaborative agreements and other research and development projects. Also included in research and development expenses are third-party costs incurred for the Company’s research programs including in-licensing costs, CRO costs and costs incurred by other research and development service vendors. We expense these costs as they are incurred. When we make payments for research and development services prior to the services being rendered, we record those amounts as prepaid assets on our consolidated balance sheet and we expense them as the services are provided.

Income Taxes

                Income taxes are accounted for under the liability method.  This approach requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of differences between the tax basis of assets or liabilities and their carrying amounts in the consolidated financial statements.  A valuation allowance is provided for deferred tax assets if it is more likely than not that these items will either expire before the Company is able to realize their benefit or if future deductibility is uncertain.  As of March 31, 2015, the Company had provided a full valuation allowance against its deferred tax assets as recoverability was uncertain.  Developing the provision for income taxes requires significant judgment and expertise in federal and state income tax laws, regulations and strategies, including the determination of deferred tax assets and liabilities and, if necessary, any valuation allowances that may be required for deferred tax assets.  The Company's judgments and tax strategies are subject to audit by various taxing authorities.  While management believes the Company has provided adequately for its income tax liabilities in its consolidated financial statements, adverse determinations by these taxing authorities could have a material adverse effect on the Company's consolidated financial condition and results of operations. 

The Company's ending deferred tax liability represents a future tax obligation for current tax amortization claimed on acquired IPR&D.  As the Company cannot estimate when the IPR&D assets will be amortizable for financial reporting purposes, the deferred tax liability associated with the IPR&D assets cannot be used to support the realization of the Company's deferred tax assets.  As a result, the Company is required to increase its valuation allowance and record a charge to deferred taxes.  

Discontinued Operations - Oncology Product Line
    
In September 2006, the Company and Eisai Inc. and Eisai Co., Ltd. (collectively "Eisai"), entered into a purchase agreement (the "Oncology Purchase Agreement"), pursuant to which Eisai agreed to acquire all of the Company's worldwide rights in and to its oncology products, including, among other things, all related inventory, equipment, records and intellectual property, and to assume certain liabilities as set forth in the Oncology Purchase Agreement. The Oncology product line included the Company's four marketed oncology drugs: Ontak, Targretin capsules, Targretin gel and Panretin gel.
    

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Discontinued Operations - Avinza Product Line
    
In September 2006, the Company and King Pharmaceuticals, now a subsidiary of Pfizer, entered into a purchase agreement (the "Avinza Purchase Agreement"), pursuant to which Pfizer acquired all of the rights in and to Avinza in the United States, its territories and Canada, including, among other things, all Avinza inventory, records and related intellectual property, and to assume certain liabilities as set forth in the Avinza Purchase Agreement.

Pursuant to the terms of the Avinza Purchase Agreement, the Company retained the liability for returns of product from wholesalers that had been sold by the Company prior to the close of the transaction. Accordingly, as part of the accounting for the gain on the sale of Avinza, the Company recorded a reserve for Avinza product returns.

Segment Reporting
    
Under ASC 280, Segment Reporting, operating segments are defined as components of an enterprise about which separate financial information is available that is regularly evaluated by the entity’s chief operating decision maker, in deciding how to allocate resources and in assessing performance. The Company has evaluated this codification and has identified two reportable segments: the development and commercialization of drugs using Captisol technology by CyDex and the biopharmaceutical company with a business model that is based upon the concept of developing or acquiring royalty revenue generating assets and coupling them with a lean corporate cost structure.
Comprehensive Income (Loss)
    
Comprehensive income (loss) represents net income (loss) adjusted for the change during the periods presented in unrealized gains and losses on available-for-sale securities less reclassification adjustments for realized gains or losses included in net income. The unrealized gains or losses are reported on the consolidated statements of comprehensive income.

Consolidation of Variable Interest Entities

The Company identifies an entity as a VIE if either: (1) the entity does not have sufficient equity investment at risk to permit the entity to finance its activities without additional subordinated financial support, or (2) the entity's equity investors lack the essential characteristics of a controlling financial interest. The Company performs ongoing qualitative assessments of its VIEs to determine whether the Company has a controlling financial interest in any VIE and therefore is the primary beneficiary. If the Company is the primary beneficiary of a VIE, it must consolidate the VIE under applicable accounting guidance. The Company determined it holds a variable interest in Viking based on management's assessment that it does not have sufficient resources to carry out its principal activities without the support of the Company. The Company's variable interests in Viking are a loan provided by the Company to Viking and a license agreement executed concurrently. As of March 31, 2015, the Company's total assets include $2.8 million related to Viking and the Company's total liabilities include $5.5 million related to Viking. Viking's consolidated assets are owned by Viking, and Viking's consolidated liabilities are without recourse against Ligand.

Convertible Debt

In August 2014, the Company completed a $245.0 million offering of convertible senior notes, which mature in 2019 and bear interest at 0.75%. The Company accounts for notes by separating the liability and equity components of the instrument in a manner that reflects the Company's nonconvertible debt borrowing rate. As a result, the Company assigned a value to the debt component of the notes equal to the estimated fair value of similar debt instruments without the conversion feature, which resulted in the Company recording the debt instrument at a discount. The Company is amortizing the debt discount over the life of the notes as additional non-cash interest expense utilizing the effective interest method.
New Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers. ASU 2014-09 is effective for annual periods beginning after December 15, 2016 and interim periods within those annual periods. The revenue standard’s core principle is built on the contract between a vendor and a customer for the provision of goods and services. It attempts to depict the exchange of rights and obligations between the parties in the pattern of revenue recognition based on the consideration to which the vendor is entitled. To accomplish this objective, the standard requires five basic steps: (1) identify the contract with the customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the performance

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obligations in the contract, (5) recognize revenue when (or as) the entity satisfies a performance obligation. Management is currently evaluating the effect the adoption of this standard will have on the Company's financial statements.

In February 2015, FASB issued ASU 2015-02 Consolidation (Topic 810): Amendments to the Consolidation Analysis. ASU 2015-02 changes the analysis that a reporting entity must perform to determine whether it should consolidate certain types of legal entities. It is effective for annual reporting periods, and interim periods within those years, beginning after December 15, 2015. Early adoption is permitted, including adoption in an interim period. Management is currently evaluating the impact of the adoption of ASU 2015-02 on our consolidated financial statements.
    
In April 2015, FASB issued ASU 2015-03, Interest—Imputation of Interest: Simplifying the Presentation of Debt Issuance Costs. This update was issued to simplify the presentation for debt issuance costs. Upon adoption, such costs shall be presented on our consolidated balance sheets as a direct deduction from the carrying amount of the related debt liability and not as a deferred charge presented in Other assets on our consolidated balance sheets. This amendment will be effective for interim and annual periods beginning on January 1, 2016, and is required to be retrospectively adopted. Management expects to change the presentation on our consolidated balance sheets accordingly for all periods impacted upon the required adoption date.


2. Fair Value Measurements

The Company measures certain financial assets and liabilities at fair value on a recurring basis, including equity securities, co-promote termination payments receivable and the related liability, contingent liabilities, and the Company's convertible senior notes.     

The following table provides a summary of the carrying value of assets and liabilities that are measured at fair value on a recurring basis as of March 31, 2015 (in thousands):

Fair Value Measurements at Reporting Date Using
 
 
 
Quoted Prices in
Active Markets
for Identical
Assets
 
Significant
Other
Observable
Inputs
 
Significant
Unobservable
Inputs
 
Total
 
(Level 1)
 
(Level 2)
 
(Level 3)
Assets:
 
 
 
 
 
 
 
Current co-promote termination payments receivable (1)
$
88

 
$
—

 
$
—

 
$
88

Short-term investments (2)
11,459

 
11,459

 
—

 
—

     Total assets
$
11,547

 
$
11,459

 
$
—

 
$
88

Liabilities:
 
 
 
 
 
 
 
Current contingent liabilities-CyDex (3)
$
3,692

 
$
—

 
$
—

 
$
3,692

Current co-promote termination liability (1)
88

 
—

 
—

 
88

Long-term contingent liabilities-Metabasis (4)
2,495

 
2,495

 
—

 
—

Long-term contingent liabilities-CyDex (3)
5,718

 
—

 
—

 
5,718

Liability for amounts owed to former licensees(5)
1,429

 
1,429

 
—

 
—

     Total liabilities
$
13,422

 
$
3,924

 
$
—

 
$
9,498


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The following table provides a summary of the assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2014 (in thousands):

Fair Value Measurements at Reporting Date Using
 
 
 
Quoted Prices in
Active Markets
for Identical
Assets
 
Significant
Other
Observable
Inputs
 
Significant
Unobservable
Inputs
 
Total
 
(Level 1)
 
(Level 2)
 
(Level 3)
Assets:
 
 
 
 
 
 
 
Current co-promote termination payments receivable (1)
$
322

 
$
—

 
$
—

 
$
322

Short-term investments (2)
7,133

 
7,133

 
—

 
—

     Total assets
$
7,455

 
$
7,133

 
$
—

 
$
322

Liabilities:
 
 
 
 
 
 
 
Current contingent liabilities-CyDex (3)
$
6,796

 
$
—

 
$
—

 
$
6,796

Current co-promote termination liability (1)
322

 
—

 
—

 
322

Long-term contingent liabilities-Metabasis (4)
3,652

 
3,652

 
—

 
—

Long-term contingent liabilities-CyDex (3)
4,701

 
—

 
—

 
4,701

Liability for amounts owed to former licensees (5)
773

 
773

 
—

 
—

     Total liabilities
$
16,244

 
$
4,425

 
$
—

 
$
11,819


(1)
The co-promote termination payments receivable represents a non-interest-bearing receivable for future payments to be made by Pfizer related to product sales and is recorded at its fair value. The receivable and liability will remain equal, and are adjusted each quarter for changes in the fair value of the obligation including any changes in the estimate of future net Avinza product sales. The fair value is determined based on a valuation model using an income approach. For additional information, see Note 4 Avinza Co-Promotion.
(2)
The Company’s short-term investments include investments in equity securities which the Company received as a result of event-based and upfront payments from licensees. The fair value is determined using quoted market prices in active markets for the same securities.
(3)
The fair value of the liabilities for CyDex contingent liabilities were determined based on the income approach using a Monte Carlo analysis. The fair value is subjective and is affected by changes in inputs to the valuation model including management’s assumptions regarding revenue volatility, probability of commercialization of products, estimates of timing and probability of achievement of certain revenue thresholds and developmental and regulatory milestones which may be achieved and affect amounts owed to former license holders and CVR holders. Changes in these assumptions can materially affect the fair value estimate.
(4)
The liability for CVRs for Metabasis are determined using quoted market prices in active markets for the underlying CVR.
(5)
The liability for amounts owed to former licensees are determined using quoted market prices in active markets for the underlying investment received from a partner, a portion of which is owed to former licensees.

The following table represents significant unobservable inputs used in determining the fair value of contingent liabilities assumed in the acquisition of CyDex:

 
March 31, 2015
 
December 31, 2014
Range of annual revenue subject to revenue sharing (1)
$17.7 million-$21.6 million
 
$17.2 million-$17.3 million
Revenue volatility
25%
 
25%
Average of probability of commercialization
77%
 
81%
Sales beta
0.70
 
0.60
Credit rating
B
 
B
Equity risk premium
6%
 
6%

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(1)
Revenue subject to revenue sharing represent management’s estimate of the range of total annual revenue subject to revenue sharing (i.e. annual revenues in excess of $15 million) through December 31, 2016, which is the term of the CVR agreement.

A reconciliation of the level 3 financial instruments as of March 31, 2015 is as follows (in thousands):

Assets:
 
Fair value of level 3 financial instrument assets as of December 31, 2014
$
322

Assumed payments made by Pfizer or assignee
(297
)
Fair value adjustments to co-promote termination liability
63

Fair value of level 3 financial instrument assets as of March 31, 2015
$
88

 
 
Liabilities:
 
Fair value of level 3 financial instrument liabilities as of December 31, 2014
$
11,819

Assumed payments made by Pfizer or assignee
(297
)
Payments to CVR and other former license holders
(3,246
)
Fair value adjustments to contingent liabilities
1,159

Fair value adjustments to co-promote termination liability
63

Fair value of level 3 financial instrument liabilities as of March 31, 2015
$
9,498


Other Fair Value Measurements-2019 Convertible Senior Notes

In August 2014, the Company issued $245.0 million aggregate principal amount of convertible senior unsecured notes due 2019 (the "2019 Convertible Senior Notes"). The Company uses a quoted market rate in an inactive market, which is classified as a Level 2 input, to estimate the current fair value of its 2019 Convertible Senior Notes. The estimated fair value of the 2019 Senior Convertible Notes was $297.1 million as of March 31, 2015. The carrying value of the notes does not reflect the market rate. See Note 7 Financing Arrangements for additional information.

3. Variable Interest Entities

In May 2014, the Company entered into a Master License Agreement ("MLA") to license rights to five programs to Viking, an unrelated clinical-stage biopharmaceutical company focused on the development of novel therapies for metabolic and endocrine disorders. As part of this transaction, the Company extended a $2.5 million loan to Viking under a Loan and Security Agreement ("LSA") and evidenced by a convertible note. Under the terms of the LSA, the principal amount outstanding accrues interest at a fixed rate equal to the lesser of 5% and the maximum interest rate permitted by law. The loan is due and payable in May 2016, unless the Company has opted to convert the note into Viking common stock or extend the maturity date. Upon the earlier to occur of (i) the one-year anniversary of the closing of Viking's Initial Public Offering ("IPO") or (ii) certain other qualified financing events, the Company may elect to be repaid in cash or equity equal to 200% of accrued principal amount plus accrued and unpaid interest.

As partial consideration for the grant of the rights and licenses under the MLA, upon Viking's consummation of an IPO or certain other qualified financing events, Viking will issue to the Company shares of Viking common stock having an aggregate value of approximately $29 million, subject to adjustment in certain circumstances. At the closing of an IPO a number of shares of common stock having an aggregate value of $29.0 million will be issued to the Company, subject to adjustment in certain circumstances. In the event Viking consummates a private financing prior to an IPO, the Company has the option to receive a number of shares of the same class and type of securities issued in the private financing having an aggregate value of approximately $29.0 million, subject to adjustment in certain circumstances. The Company has the right to terminate the MLA on or after April 30, 2015 if Viking has neither completed an IPO nor received aggregate net proceeds of at least $20.0 million in one or more private financings. The Company also has the right to terminate the MLA in the event of insolvency or bankruptcy of Viking.

In April 2015, the Company entered into an amendment to the MLA with Viking (the "MLA Amendment"). The MLA Amendment increased the royalty rates payable to the Company on the annual aggregate worldwide net sales of the EPOR, SARM and TR-Beta licensed compounds.  The MLA Amendment also revised the calculation of and adjustments to the upfront

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payments to the Company of Viking capital stock upon completion of an IPO by Viking.  Upon completion of an IPO, Viking will issue to the Company a number of shares of Viking common stock based on Viking’s valuation as of immediately prior to such IPO.  The Company’s aggregate ownership of Viking common stock is capped at 49.9% of the Viking capital stock outstanding following the closing of the IPO. Additionally, the Company and Viking entered into an amendment to the LSA(the "LSA Amendment"). Pursuant to the LSA Amendment, the loans are no longer due and payable upon completion of an IPO, but were extended to become due upon the earlier of: (i) a certain private qualified financing transaction with aggregate net proceeds to Viking of at least $20.0 million or (ii) a public offering subsequent to IPO with aggregate net proceeds to Viking of at least $20.0 million or (iii) one year after the closing of an IPO. The Company may elect to receive equity of Viking common stock or cash equal to 200% of the principal amount plus accrued and unpaid interest.

Upon execution of the MLA and the LSA, the Company determined it held a variable interest in Viking based on management's assessment that Viking does not have sufficient resources to carry out its principal activities without the support of the Company. The Company's variable interests in Viking are a loan provided by the Company to Viking and a license agreement executed concurrently. The Company examines specific criteria and uses judgment when determining if the Company is the primary beneficiary of a VIE and therefore required to consolidate the investment. Factors considered in determining whether the Company is the primary beneficiary include risk and reward sharing, experience and financial condition of its partner, voting rights, involvement in day-to-day operating decisions, representation on Viking's executive committee, and level of economics between the Company and Viking.

The Company has recorded 100% of the losses incurred since May 21, 2014, the effective date of the transaction, as net loss attributable to noncontrolling interest due to the fact that it is considered a primary beneficiary with no equity interest in the VIE. The advances under the loan agreement are included as notes payable by Viking and are eliminated in consolidation.    
    
The following table represents the consolidated assets and liabilities, which are owned by and are obligations of Viking and are with no recourse to the Company, as of March 31, 2015 and December 31, 2014 (in thousands):

 
March 31, 2015
 
December 31, 2014
Cash and cash equivalents
327

 
756

Other current assets
32

 
18

Capitalized IPO expenses
2,408

 
2,268

     Total current assets
$
2,767

 
$
3,042

 
 
 
 
Other assets
1

 
1

     Total assets
$
2,768

 
$
3,043

 
 
 
 
Accounts payable
$
2,397

 
$
2,211

Accrued liabilities
113

 
77

Current portion of notes payable
348

 
334

     Total current liabilities
$
2,858

 
$
2,622

 
 
 
 
Long-term portion of notes payable
2,663

 
2,331

     Total liabilities
$
5,521

 
$
4,953


In May 2015, Viking closed its IPO of 3.0 million shares of its common stock at an initial offering price of $8.00 per share for an aggregate offering price of $24.0 million before underwriters discounts. Viking granted the underwriters a 30-day option to purchase up to an additional 450,000 shares of common stock at the initial public offering price to cover over-allotments. Viking shares are currently traded under the ticker symbol VKTX on the Nasdaq capital market.

In connection with the Viking IPO, the Company purchased 1.1 million shares of Viking common stock for an aggregate price of $9.0 million at the initial public offering price. In addition, pursuant to the amended MLA Amendment, the Company received approximately 3.4 million shares of Viking common stock on the closing date of the Viking IPO, the Company will receive additional shares of Viking common stock in the event that the underwriters exercise their option to purchase additional shares to cover over-allotments, if any. As of the closing date, the Company owned an aggregate of 49.8%

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of the outstanding common stock of Viking, based on the shares of outstanding Viking common stock at the closing of the Viking IPO.

In connection with the share of Viking common stock received pursuant to the MLA, the Company will make a cash payment to the holders of certain Metabasis CVRs. Pursuant to the CVR agreements, the Company estimates that the aggregate cash payment will be approximately $3.2 million, subject to adjustment in the event the underwriters exercise their option to purchase additional shares to cover over-allotments, if any. The payment is expected to be made on or about January 1, 2016.

4. Avinza Co-Promotion

In 2003, the Company and Organon Pharmaceuticals USA Inc. ("Organon") entered into an agreement for the co-promotion of Avinza. Subsequently in 2006, the Company signed an agreement with Organon that terminated the Avinza co-promotion agreement between the two companies and returned Avinza co-promotion rights to the Company. In consideration of the early termination, the Company agreed to make quarterly royalty payments to Organon equal to 6.5% of Avinza net sales through December 31, 2012 and thereafter equal to 6.0% of Avinza net sales through patent expiration, currently anticipated to be November 2017.

In January 2006, the Company and King Pharmaceuticals, now a subsidiary of Pfizer, entered into an agreement pursuant to which Pfizer acquired all of the Company’s rights in and to Avinza. Pfizer also assumed the Company’s co-promote termination obligation to make royalty payments to Organon based on net sales of Avinza. In connection with Pfizer's assumption of this obligation, Organon did not consent to the legal assignment of the co-promote termination obligation to Pfizer. Accordingly, the Company remains liable to Organon in the event of Pfizer's default of the obligation. Therefore, the Company recorded an asset as of February 26, 2007 to recognize Pfizer's assumption of the obligation, while continuing to carry the co-promote termination liability in the Company's consolidated financial statements to recognize the Company’s legal obligation as primary obligor to Organon. This asset represents a non-interest bearing receivable for future payments to be made by Pfizer and is recorded at its fair value. The receivable and liability will remain equal, and are adjusted each reporting period for changes in the fair value of the obligation including for any changes in the estimate of future net Avinza product sales. This receivable will be assessed on a quarterly basis or when a triggering event occurs for impairment (e.g. in the event Pfizer defaults on the assumed obligation to pay Organon).

On a quarterly basis, management reviews the carrying value of the co-promote termination liability. In February 2014, Actavis launched a generic form of Avinza which resulted in a significant decrease in estimates of future net sales used to value the co-promote termination asset and liability. Due to assumptions and judgments inherent in determining the estimates of future net Avinza sales through November 2017, the actual amount of net Avinza sales used to determine the current fair value of the Company’s co-promote termination asset and liability may be materially different from current estimates.

A summary of the co-promote termination liability as of March 31, 2015 is as follows (in thousands):

Net present value of payments based on estimated future net Avinza product sales as of December 31, 2014
$
322

Assumed payments made by Pfizer or assignee
(297
)
Fair value adjustments
63

Total co-promote termination liability as of March 31, 2015
$
88



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5. Lease Obligations

The Company leases office and laboratory facilities in California, Kansas and New Jersey. These leases expire between 2015 and 2019, some of which are subject to annual rent increases which range from 3.0% to 3.5%. The Company currently subleases office and laboratory space in California and New Jersey. The following table provides a summary of operating lease obligations and payments expected to be received from sublease agreements as of March 31, 2015 (in thousands):

Operating lease obligations:
 
Lease
Termination
Date
 
Less than 1
year
1 year
2 years
3 years
4 years
Total
Corporate headquarters-
San Diego, CA
 
June 2019
 
$
686

$
704

$
723

$
742

$
187

$
3,042

Bioscience and Technology Business Center-
Lawrence, KS
 
December 2017
 
54

54

41

—

—

149

Vacated office and research facility-San Diego, CA
 
July 2015
 
765

—

—

—

—

765

Vacated office and research facility-
Cranbury, NJ
 
August 2016
 
2,602

1,089

—

—

—

3,691

Total operating lease obligations
 
 
 
$
4,107

$
1,847

$
764

$
742

$
187

$
7,647

 
 
 
 
 
 
 
 
 
 
Sublease payments expected to be received:
 
 
 
 
 
 
 
 
 
Corporate headquarters-
San Diego, CA
 
June 2019
 
$
433

$
444

$
455

$
465

$
116

$
1,913

Office and research facility-
San Diego, CA
 
July 2015
 
311

—

—

—

—

311

Office and research facility-
Cranbury, NJ
 
August 2016
 
212

88

—

—

—

300

Net operating lease obligations
 
 
 
$
3,151

$
1,315

$
309

$
277

$
71

$
5,123



As of March 31, 2015 and December 31, 2014, the Company had lease exit obligations of $2.6 million and $3.3 million, respectively. For each of the three months ended March 31, 2015 and 2014, the Company made cash payments, net of sublease payments received of $0.9 million. The Company recognized adjustments for accretion and changes in leasing assumptions of $0.2 million for each of the three months ended March 31, 2015 and 2014.
Total rent expense under all office leases for each of the three months ended March 31, 2015 and 2014 was $0.2 million. The Company recognizes rent expense on a straight-line basis. Deferred rent at both March 31, 2015 and December 31, 2014 was $0.3 million, and is included in other long-term liabilities.


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6. Segment Reporting
The Company evaluates performance based on the operating income (loss) of the respective business segments. The segment results may not represent actual results that would be expected if they were independent, stand-alone businesses. Segment information is as follows (in thousands):
Balance Sheet Data:
As of March 31, 2015
 
Ligand
 
CyDex
 
Total
Total assets
$
193,081

 
$
70,142

 
$
263,223

 
 
 
 
 
 
 
As of December 31, 2014
 
Ligand
 
CyDex
 
Total
Total assets
$
184,215

 
$
73,814

 
$
258,029

 
 
 
 
 
 
Operating Data:
For the three months ended March 31, 2015
 
Ligand
 
CyDex
 
Total
Net revenues from external customers
$
9,006

 
$
5,596

 
$
14,602

Depreciation and amortization expense
53

 
597

 
650

Operating income
458

 
2,891

 
3,349

Interest expense, net
2,973

 
—

 
2,973

Income tax expense from continuing operations
14

 
1

 
15

 
 
 
 
 
 
 
For the three months ended March 31, 2014
 
Ligand
 
CyDex
 
Total
Net revenues from external customers
$
6,791

 
$
9,167

 
$
15,958

Depreciation and amortization expense
66

 
602

 
$
668

Operating (loss) income
(71
)
 
5,171

 
$
5,100

Interest expense, net
248

 
—

 
$
248

Income tax expense from continuing operations
51

 
2

 
$
53


7. Financing Arrangements

The Company fully repaid its secured term loan credit facility on July 31, 2014. Under the terms of the secured debt, the Company made interest-only payments through February 2013. Subsequent to the interest-only payments, the note amortized with principal and interest payments through the remaining term of the loan. Additionally, the Company made an additional final payment equal to 6% of the total amount borrowed which was due at maturity and was accreted over the life of the loan.

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0.75% Convertible Senior Notes Due 2019
    
In August 2014, the Company issued $245.0 million aggregate principal amount of its 2019 Convertible Senior Notes, resulting in net proceeds of $239.3 million. The 2019 Convertible Senior Notes are convertible into common stock at an initial conversion rate of 13.3251 shares per $1,000 principal amount of convertible notes, subject to adjustment upon certain events, which is equivalent to an initial conversion price of approximately $75.05 per share of common stock. The initial conversion price of the notes represents a premium of approximately 35% to the $55.59 per share close price of the Company's common stock on August 12, 2014. The notes bear interest at a rate of 0.75% per year, payable semi-annually. Holders of the 2019 Convertible Senior Notes may convert the notes at any time prior to the close of business on the business day immediately preceding May 15, 2019, under any of the following circumstances: (1) during any fiscal quarter (and only during such fiscal quarter) commencing after December 31, 2014, if, for at least 20 trading days (whether or not consecutive) during the 30 consecutive trading day period ending on the last trading day of the immediately preceding fiscal quarter, the last reported sale price of the Company's common stock on such trading day is greater than 130% of the conversion price on such trading day; (2) during the five business day period immediately following any ten consecutive trading day period, in which the trading price per $1,000 principal amount of notes was less than 98% of the product of the last reported sale price of the Company's common stock on such trading day and the conversion rate on each such trading day; or (3) upon the occurrence of certain specified corporate events as specified in the indenture governing the notes. On or after May 15, 2019 until the close of business on the second scheduled trading day immediately preceding August 15, 2019, holders of the notes may convert all or a portion of their notes at any time, regardless of the foregoing circumstances. Upon conversion, Ligand must deliver cash to settle the principal and may deliver cash or shares of common stock, at the option of the Company, to settle any premium due upon conversion.

In accordance with accounting guidance for debt related to conversion and other options, the Company separately accounted for the debt and equity components of the 2019 Convertible Senior Notes by allocating the $245.0 million total proceeds between the debt component and the embedded conversion option, or equity component, due to Ligand's ability to settle the 2019 Convertible Senior Notes in cash for the principal portion and to settle any premium in cash or common stock, at the Company's election. The debt allocation was performed in a manner that reflected the Company's non-convertible borrowing rate for similar debt of 5.83% derived from independent valuation analysis. The initial debt value of $192.5 million accretes at 5.83% to reach $245.0 million at the maturity date. The equity component of the 2019 Convertible Senior Notes was recognized as a debt discount and represents the difference between the $245.0 million proceeds at issuance of the 2019 Convertible Senior Notes and the fair value of the debt allocation on their respective issuance dates. The debt discount is amortized to interest expense using the effective interest method over the expected life of a similar liability without an equity component. The notes will have a dilutive effect to the extent the average market price per share of common stock for a given reporting period exceeds the conversion price of $75.05. As of March 31, 2015, the “if-converted value” did not exceed the principal amount of the 2019 Convertible Senior Notes.    

In connection with the issuance of the 2019 Convertible Senior Notes, the Company incurred $5.7 million of issuance costs, which primarily consisted of underwriting, legal and other professional fees. The portions of these costs allocated to the equity components totaling $1.2 million were recorded as a reduction to additional paid-in capital. The portions of these costs allocated to the liability components totaling $4.5 million were recorded as assets on the balance sheet.  The portions allocated to the liability components are amortized to interest expense using the effective interest method over the expected life of the 2019 Convertible Senior Notes.
 
The Company determined the expected life of the debt discount for the 2019 Convertible Senior Notes to be equal to the original five-year term of the notes. The carrying value of the equity component related to the 2019 Convertible Senior Notes as of March 31, 2015 and December 31, 2014, net of issuance costs, was $51.3 million.


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Convertible Bond Hedge and Warrant Transactions

In August 2014, in connection with the issuance of the 2019 Convertible Senior Notes, to minimize the impact of potential dilution to the Company's common stock upon conversion of such notes, the Company entered into convertible bond hedges and sold warrants covering approximately 3,264,643 shares of its common stock. The convertible bond hedges have an exercise price of $75.05 per share and are exercisable when and if the 2019 Convertible Senior Notes are converted. If upon conversion of the 2019 Convertible Senior Notes, the price of the Company's common stock is above the exercise price of the convertible bond hedges, the counterparties will deliver shares of common stock and/or cash with an aggregate value approximately equal to the difference between the price of common stock at the conversion date and the exercise price, multiplied by the number of shares of common stock related to the convertible bond hedge transaction being exercised. The convertible bond hedges and warrants described below are separate transactions entered into by the Company and are not part of the terms of the 2019 Convertible Senior Notes. Holders of the 2019 Convertible Senior Notes and warrants will not have any rights with respect to the convertible bond hedges. The Company paid $48.1 million for these convertible bond hedges and recorded the amount as a reduction to additional paid-in capital.

Concurrently with the convertible bond hedge transactions, the Company entered into warrant transactions whereby it sold warrants to acquire, approximately 3,264,643 shares of common stock with an exercise price of approximately $125.08 per share, subject to certain adjustments. The warrants have various expiration dates ranging from November 13, 2019 to April 22, 2020. The warrants will have a dilutive effect to the extent the market price per share of common stock exceeds the applicable exercise price of the warrants, as measured under the terms of the warrant transactions. The Company received $11.6 million for these warrants and recorded this amount to additional paid-in capital. The common stock issuable upon exercise of the warrants will be in unregistered shares, and the Company does not have the obligation and does not intend to file any registration statement with the Securities and Exchange Commission (the "SEC") registering the issuance of the shares under the warrants.

The Company determined it holds a variable interest in Viking based on management's assessment that Viking does not have sufficient resources to carry out its principal activities without the support of the Company. Viking has convertible notes payable of $0.3 million as of both March 31, 2015 and December 31, 2014, which bear interest at a rate equal to the lesser of the short-term applicable federal rate as published by the Internal Revenue Service or the maximum rate permissible by law. Interest under the convertible notes is due and payable at maturity. Unless repaid in full or converted in full, each convertible note matures two years from its date of purchase. In the event that any principal amount due is not paid in full by the maturity date, such unpaid principal amount will bear interest at the lesser of 2% or the maximum rate permissible by law. These convertible notes payable are obligations of Viking and are with no recourse to the Company

The carrying values and the fixed contractual coupon rates of the Company's financing arrangements as of March 31, 2015 and December 31, 2014 were as follows (in thousands):

 
March 31, 2015
 
December 31, 2014
2019 Convertible Senior Notes
 
 
 
     Principal amount outstanding
$
245,000

 
$
245,000

     Unamortized discount
(46,781
)
 
(49,092
)
          Net carrying amount
198,219

 
195,908

Convertible notes payable, Viking Therapeutics, Inc.
348

 
334

Total notes payable
$
198,567

 
$
196,242


8. Stockholders’ Equity

The Company grants options and awards to employees, non-employee consultants, and non-employee directors. Only new shares of common stock are issued upon the exercise of stock options. Non-employee directors are accounted for as employees. Options and restricted stock granted to certain directors vest in equal monthly installments over the one-year period following the date of grant. Options granted to employees vest 1/8 on the six month anniversary of the date of grant, and 1/48 each month thereafter for 42 months. Option awards generally expire ten years from the date of grant.


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Stock Option Activity

The following is a summary of the Company’s stock option plan activity and related information:

 
Shares
 
Weighted-
Average
Exercise
Price
 
Weighted-Average
Remaining
Contractual Term in
Years
 
Aggregate
Intrinsic Value
(In thousands)
Balance as of December 31, 2014
1,800,697

 
$
28.78

 
7.3
 
$
51,558

Granted
243,469

 
56.40

 
 
 
 
Exercised
(42,489
)
 
18.35

 
 
 
 
Balance as of March 31, 2015
2,001,677

 
32.36

 
7.4
 
$
89,578

Exercisable as of March 31, 2015
1,183,763

 
21.39

 
6.4
 
$
65,956

Options vested and expected to vest as of March 31, 2015
2,001,677

 
32.36

 
7.4
 
$
89,578


The weighted-average grant date fair value of all stock options granted during the three months ended March 31, 2015 was $32.30 per share. The total intrinsic value of all options exercised during the three months ended March 31, 2015 and 2014 was approximately $1.9 million and $12.1 million, respectively. As of March 31, 2015, there was $17.8 million of total unrecognized compensation cost related to nonvested stock options. That cost is expected to be recognized over a weighted-average period of 2.6 years.

Net cash received from options exercised during the three months ended March 31, 2015 and 2014 was approximately $0.8 million and $3.2 million, respectively. There is no current tax benefit related to options exercised because of net operating losses for which a full valuation allowance has been established.

As of March 31, 2015, 0.7 million shares were available for future option grants or direct issuance under the Company's 2002 Stock Incentive Plan, as amended.

Restricted Stock Activity

Restricted stock activity for the three months ended March 31, 2015 was as follows:

 
Shares
 
Weighted-
Average Grant
Date Fair Value
Nonvested at December 31, 2014
82,673

 
$
45.76

Granted
93,978

 
56.34

Vested
(39,174
)
 
34.75

Nonvested at March 31, 2015
137,477

 
$
56.13


Restricted stock awards generally vest over three years. As of March 31, 2015, there was $5.7 million of total unrecognized compensation cost related to nonvested restricted stock. That cost is expected to be recognized over a weighted-average period of 2.2 years.

Employee Stock Purchase Plan

The Company's Employee Stock Purchase Plan, as amended and restated (the "Amended ESPP") allows participants to purchase up to 1,250 shares of Ligand common stock during each offering period, but in no event may a participant purchase more than 1,250 shares of common stock during any calendar year. The length of each offering period is six months, and employees are eligible to participate in the first offering period beginning after their hire date.

The Amended ESPP allows employees to purchase Ligand common stock at the end of each six month period at a price equal to 85% of the lesser of fair market value on either the start date of the period or the last trading day of the period (the "Lookback Provision"). The 15% discount and the Lookback Provision make the Amended ESPP compensatory.  There

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were no shares of common stock issued under the amended ESPP during either of the three months ended March 31, 2015 and 2014. The Company recorded compensation expense related to the ESPP of $21,000 and $13,000 for the three months ended March 31, 2015 and 2014, respectively. As of March 31, 2015, 75,741 shares were available for future purchases under the Amended ESPP and shares of common stock had been issued under the Amended ESPP to employees. For shares purchased under the Company's Amended ESPP, a weighted-average expected volatility of 36% and 38% and an expected term of 6 months was used for the period ended March 31, 2015 and 2014, respectively.


9. Litigation

The Company records an estimate of a loss when the loss is considered probable and estimable. Where a liability is probable and there is a range of estimated loss and no amount in the range is more likely than any other number in the range, the Company records the minimum estimated liability related to the claim in accordance with ASC Topic 450-Contingencies. As additional information becomes available, the Company assesses the potential liability related to its pending litigation and revises its estimates. Revisions in the Company's estimates of potential liability could materially impact its results of operations.

Securities Litigation
    
On June 8, 2012, a federal securities class action and shareholder derivative lawsuit was filed in the Eastern District of Pennsylvania against Genaera Corporation and its officers, directors, major shareholders and trustee (the "Genaera Defendants") for allegedly breaching their fiduciary duties to Genaera shareholders.  The lawsuit also names the Company and its CEO as additional defendants for allegedly aiding and abetting the Genaera Defendants' various breaches of fiduciary duties based on the Company's purchase of a licensing interest in a development-stage pharmaceutical drug program from the Genaera Liquidating Trust in May 2010 and the Company's subsequent sale of half of its interest in the transaction to Biotechnology Value Fund, Inc. 
 
                Following an amendment to the complaint and a round of motions to dismiss, the court dismissed the amended complaint with prejudice on August 12, 2013.  Plaintiff appealed that dismissal on September 10, 2013, and the Third Circuit reversed on October 17, 2014.  Plaintiff then filed a second amended complaint with the district court, which the Company moved to dismiss on March 20, 2015.  Plaintiff’s opposition is due May 11, 2015.  The Company intends to continue to vigorously defend against the claims against the Company and its CEO.  Due to the complex nature of the legal and factual issues involved, however, the outcome of this matter is not presently determinable.


10. Subsequent Event
    
In May 2015, the Company acquired financial rights to potential future milestones and royalties for more than 15 biologic development programs from Selexis SA for $4.0 million. Each acquired program is fully funded by a development partner. Selexis is a privately held global life science company based in Switzerland that focuses on drug discovery for lead identification and cell line development of scale-up and manufacturing of therapeutic protein drugs.


ITEM 2.
Management's Discussion and Analysis of Financial Condition and Results of Operations

Caution: This discussion and analysis may contain predictions, estimates and other forward-looking statements that involve a number of risks and uncertainties, including those discussed in Part II, Item 1A:"Risk Factors." This outlook represents our current judgment on the future direction of our business. These statements include those related to our Captisol-related revenues, our Promacta, Kyprolis, and other product royalty revenues, product returns, and product development. Actual events or results may differ materially from our expectations. For example, there can be no assurance that our revenues or expenses will meet any expectations or follow any trend(s), that we will be able to retain our key employees or that we will be able to enter into any strategic partnerships or other transactions. We cannot assure you that we will receive expected Promacta, Kyprolis, Captisol and other product revenues to support our ongoing business or that our internal or partnered pipeline products will progress in their development, gain marketing approval or achieve success in the market. In addition, ongoing or future arbitration, or litigation or disputes with third parties may have a material adverse effect on us. Such risks and uncertainties, and others, could cause actual results to differ materially from any future performance suggested. We undertake no obligation to make any revisions to these forward-looking statements to reflect events or circumstances arising

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after the date of this quarterly report. This caution is made under the safe harbor provisions of Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act.

Our trademarks, trade names and service marks referenced herein include Ligand. Each other trademark, trade name or service mark appearing in this quarterly report belongs to its owner.

References to "Ligand Pharmaceuticals Incorporated," "Ligand," the "Company," "we" or "our" include Ligand Pharmaceuticals Incorporated and our wholly owned subsidiaries.

Overview
    
We are a biotechnology company with a business model that is based upon the concept of developing or acquiring royalty revenue generating assets and coupling them with a lean corporate cost structure. Our goal is to create a sustainably profitable business and generate meaningful value for our stockholders. Since a portion of our business model is based on the goal of partnering with other pharmaceutical companies to commercialize and market our assets, a significant amount of our revenue is based largely on payments made to us by partners for royalties, milestones, event-based payments, and license fees. We offer investors an opportunity to invest in the increasingly complicated and unpredictable pharmaceutical industry. In comparison to our peers, we believe we have assembled one of the largest and most diversified asset portfolios in the industry with the potential to generate significant revenue in the future. The therapies in our development portfolio address the unmet medical needs of patients for a broad spectrum of diseases including hepatitis, multiple myeloma, muscle wasting, Alzheimer’s disease, dyslipidemia, diabetes, anemia, epilepsy, FSGS and osteoporosis. We have established multiple alliances with the world’s leading pharmaceutical companies including Novartis, Amgen, Inc., Merck, Pfizer, and Baxter International.

Highlights from year-to-date 2015 include:

•
In January 2015, our partner, Retrophin, Inc. announced that they have received orphan drug designation from FDA for Sparsentan for the treatment of FSGS.
•
In February 2015, our partner, Amgen, Inc. announced that the European Medicines Agency (EMA) has accepted the Marketing Authorization Application (MAA) of Kyprolis®(carfilzomib) for injection for the treatment of patients with relapsed multiple myeloma who have received at least one prior therapy. The MAA has been granted accelerated assessment by the EMA.
•
In February 2015, Ligand announced a license agreement with Sermonix for oral lasofoxifene for the United States and additional territories. Under the terms of the agreement, Ligand is entitled to receive up to $45 million in potential regulatory and commercial milestone payments and tiered royalties of 6% to 10% on future net sales.
•
In April 2015, our partner, SAGE Therapeutics, announced a positive end-of-phase 2 meeting with FDA on SAGE-547 for the treatment of patients with super-refractory status epilepticus (SRSE) and completion of treatment for the first patient enrolled in its Phase 3 expanded access protocol for SAGE-547. To date, we have earned two milestone payments of $250,000 and $500,0000 respectively.
•
In April 2015, we amended the master license agreement with Viking to increase the royalty rates payable to the Company on the annual aggregate worldwide net sales of the EPOR, SARM and TR-Beta licensed compounds, and to cap the upfront license fee in shares of Viking common stock payable upon the completion of Viking's IPO. We also amended the loan and security agreement with Viking, among other things, to extend certain eligible early conversion or prepayment dates.
•
In May 2015, Viking closed its IPO of 3.0 million shares of its common stock at an initial offering price of $8.00 per share. Viking has granted the underwriters a 30-day option to purchase up to an additional 450,000 shares of common stock at the same price to cover over-allotments.
•
In connection with the Viking IPO, we purchased 1.1 million shares of Viking common stock for an aggregate price of $9.0 million at the price offered to the public. In addition, pursuant to the amended MLA agreement, we received approximately 3.4 million shares of Viking common stock on the closing date of the Viking IPO.
•
In May 2015, we acquired financial rights to potential future milestones and royalties for more than 15 biologic development programs from Selexis SA. Each acquired program is fully funded by a development partner. Selexis is a privately held global life science company based in Switzerland focused on drug discovery for lead identification and cell line development for scale-up and manufacturing of therapeutic protein drugs. We previously acquired a portfolio of biologic development programs from Selexis in April, 2013.

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Results of Operations

Three months ended March 31, 2015 and 2014
Total revenue for the three months ended March 31, 2015 was $14.6 million compared to $16.0 million for the same period in 2014. We reported net income attributable to common stock holders of $0.8 million for the three months ended March 31, 2015, compared to $2.1 million for the same period in 2014.

Royalty Revenue
Royalty revenue was $10.3 million for the three months ended March 31, 2015 compared to $7.9 million for the same period in 2014. The increase in royalty revenue is primarily due to an increase in Promacta and Kyprolis royalties.

Material Sales
We recorded material sales of $3.7 million for the three months ended March 31, 2015 compared to $5.7 million for the same period in 2014. The decrease in material sales of $2.0 million for the three months ended March 31, 2015 is due to timing of customer purchases.

Collaborative Research and Development and Other Revenue
We recorded collaborative research and development and other revenue of $0.6 million for the three months ended March 31, 2015 compared to $2.4 million for the same period in 2014. The decrease of $1.8 million for the three months ended March 31, 2015 is primarily due to two event based payments received in the first quarter of 2014 for the NDA approval of Noxafil® and for achieving $250 million Kyprolis annual net sales respectively.

Cost of Sales
Cost of sales was $1.1 million three months ended March 31, 2015 compared to $2.5 million for the same period in 2014. The decrease of $1.4 million for the three months ended March 31, 2015 is primarily due to fewer material sales in the first quarter of 2015 as well as invoking lower pricing tiers from our contract manufacturer due to higher quantities of Captisol material ordered.

Research and Development Expenses
Research and development expenses were $4.0 million for the three months ended March 31, 2015 compared to $3.1 million for the same period in 2014. The increase of $0.9 million for the three months ended March 31, 2015 is primarily due to timing of costs associated with internal programs.

As summarized in the table below, we are developing several proprietary products for a variety of indications. Our programs are not limited to the following, but are representative of a range of future licensing opportunities to expand our partnered asset portfolio.

Program
 
Disease/Indication
 
Development
Phase
 
 
 
 
 
Glucagon Receptor Antagonist
 
Diabetes
 
Phase 1b
Oral Human Granulocyte Colony Stimulating Factor
 
Neutropenia
 
Preclinical
LTP Platform
 
Metabolic and Cardiovascular
 
Preclinical
Kinase Inhibitors
 
Multiple
 
Preclinical
HepDirect
 
Liver
 
Preclinical

We do not provide forward-looking estimates of costs and time to complete our ongoing research and development projects as such estimates would involve a high degree of uncertainty. Uncertainties include our inability to predict the outcome of complex research, our inability to predict the results of clinical studies, regulatory requirements placed upon us by regulatory authorities such as the FDA and EMA, our inability to predict the decisions of our collaborative partners, our ability to fund research and development programs, competition from other entities of which we may become aware in future periods, predictions of market potential from products that may be derived from our research and development efforts, and our ability to

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recruit and retain personnel or third-party research organizations with the necessary knowledge and skills to perform certain research. Refer to “Item 1A. Risk Factors” for additional discussion of the uncertainties surrounding our research and development initiatives.

General and Administrative Expenses
General and administrative expenses were $6.0 million for the three months ended March 31, 2015 compared to $5.1 million for the same period in 2014. The increase of $0.9 million for three months ended March 31, 2015 is primarily due to an increase in stock-based compensation expense and costs associated with business development activities.

Lease Exit and Termination Costs
In September 2010, we ceased use of our facility located in Cranbury, New Jersey. As a result, during the three months ended September 30, 2010, we recorded lease exit costs of $9.7 million for costs related to the difference between the remaining lease obligations of the abandoned operating leases, which run through August 2016, and management’s estimate of potential future sublease income, discounted to present value. Actual future sublease income may differ materially from our estimate, which would result in us recording additional expense or reductions in expense. In addition, we wrote-off approximately $5.4 million of property and equipment related to the facility closure and recorded approximately $1.8 million of severance related costs. Lease exit and termination costs were $0.2 million for each of the three months ended March 31, 2015 and 2014.

Interest Expense, net
Interest expense, net was $3.0 million for the three months ended March 31, 2015 compared to $0.2 million for the same period in 2014. The increase in interest expense of $2.8 million for the three months ended March 31, 2015 is due to cash interest expense and non-cash debt related costs related to the 2019 Convertible Senior Notes partially offset by interest expense related to the term loan facility which was paid off in July 2014.

(Increase) decrease in Contingent Liabilities
We recorded an increase in contingent liabilities of $3,000 for the three months ended March 31, 2015 compared to an increase of $1.9 million for the same period in 2014. The increase for the three months ended March 31, 2015 primarily relates to an increase in the liability for amounts potentially due to holders of CVRs related to our CyDex acquisition of $1.2 million and is offset by a decrease of $1.2 million in the liability for amounts potentially due to holders of CVRs associated with our Metabasis acquisition. The increase for the three months ended March 31, 2014 relates to an increase in the liability for amounts potentially due to holders of CVRs and former license holders associated with our Metabasis acquisition of $2.4 million and is partially offset by a decrease in amounts potentially due to holders of CVRs associated with our Cydex acquisition of $0.5 million.

Income Tax Expense
We recorded income tax expense from continuing operations of $15,000 for the three months ended March 31, 2015 compared to income tax expense from continuing operations of $0.1 million for the same period in 2014. Our estimated annual effective rate of 1.9% is primarily attributable to an increase in our deferred tax liability associated with the tax amortization of acquired indefinite lived IPR&D intangible assets.  The effective tax rate is based on net income attributable to Ligand and excludes the effect of Viking. The income tax expense related to Viking was zero for the three months ended March 31, 2015.


Liquidity and Capital Resources

We have financed our operations through offerings of our equity securities, borrowings from long-term debt, issuance of convertible notes, product sales and the subsequent sales of our commercial assets, royalties, collaborative research and development and other revenue, and capital and operating lease transactions.

We had net income of $0.8 million for the quarter ended March 31, 2015. As of March 31, 2015, our accumulated deficit was $658.6 million and we had working capital of $173.6 million. We believe that our currently available cash, cash equivalents and short-term investments, as well as our current and future royalty, license and milestone revenue and Captisol material sales will be sufficient to fund our anticipated operating and capital requirements, at a minimum, for the next twelve months. However, our projected revenue may decrease or our expenses may increase, which could lead to our resources being consumed earlier than expected. Although we do not believe that we will need to raise additional funds to finance our current operations through the next twelve months, if we are required to seek additional financing, there can be no assurance that such

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financing will be available on terms acceptable to management, or at all. We believe that cash flows from operations will increase due to Captisol sales, an increase in royalty revenues driven primarily from continued increases in Promacta and Kyprolis sales, recent product approvals and regulatory developments, as well as revenue from anticipated new licenses and milestones. We expect to build cash in future months as we continue to generate significant cash flows from operations. While we believe in the viability of our strategy to generate sufficient operating cash flow and in our ability to raise additional funds, there can be no assurances to that effect. Our ability to achieve our operational targets is dependent upon our ability to further implement our business plan and generate sufficient operating cash flow.

Investments

We invest our excess cash principally in U.S. government debt securities, investment-grade corporate debt securities and certificates of deposit. We have established guidelines relative to diversification and maturities that maintain safety and liquidity. These guidelines are periodically reviewed and modified to take advantage of trends in yields and interest rates. Additionally, we own certain securities which are classified as short-term investments which we received in December 2012 and June 2014 as a result of an event-based payment and an upfront license payment, respectively, under licensees.     

Borrowings and Other Liabilities

Term Loan Facility
    
In January 2011, we entered into a $20.0 million secured term loan credit facility with Oxford Financial Group. The loan was amended in January 2012 to increase the secured credit facility to $27.5 million. The original $20.0 million borrowed under the facility bore interest at a fixed rate of 8.6%. The additional $7.5 million bore interest at a fixed rate of 8.9%. Under the terms of the secured debt, we made interest-only payments through February 2013. Subsequent to the interest-only payments, the note amortized with principal and interest payments through the remaining term of the loan. We were required to make an additional final payment equal to 6% of the total amount borrowed at maturity, which was accreted over the life of the loan. The maturity date of the term loan was August 1, 2014, and we fully repaid the loan as of July 31, 2014.


0.75% Convertible Senior Notes Due 2019

We have convertible debt outstanding as of March 31, 2015 related to our 2019 Convertible Senior Notes. In August 2014, we issued $245.0 million aggregate principal amount of convertible senior unsecured notes. The Notes are convertible into common stock upon satisfaction of certain conditions. Interest of 0.75% per year is payable semi-annually on August 15th and February 15th through the maturity of the notes in August 2019.

Repurchases of Common Stock
In August 2014, our Board of Directors authorized us to repurchase up to $200.0 million of our common stock from time to time over a period of up to one year. During the three months ended March 31, 2015 we did not repurchase any common shares pursuant to the repurchase program.

Public Offerings

In October 2013, we filed a universal shelf registration statement with the SEC. This registration statement has provided additional financial flexibility to us to sell shares of common stock or other equity or debt securities as needed from time to time, including through our at-the-market equity issuance program. During the three months ended March 31, 2015, we did not issue any common shares through this at-the-market equity issuance program.
Contingent liabilities
CyDex

In connection with the acquisition of CyDex in January 2011, we issued a series of CVRs and also assumed certain contingent liabilities. In 2011, $0.9 million was paid to the CyDex shareholders upon completion of a licensing agreement with the Medicines Company for the Captisol-enabled Intravenous formulation of Clopidogrel. An additional $2.0 million was paid to the CyDex shareholders upon acceptance by the FDA of Onyx’s NDA, $4.3 million was paid in January 2012 under the

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terms of the agreement, and an additional $3.5 million was paid upon approval by the FDA of Kyprolis for the potential treatment of patients with relapsed and refractory multiple myeloma. We recorded a cash payment of $0.1 million for the Topiramate orphan drug designation milestone to former license holders. We may be required to make additional payments upon achievement of certain clinical and regulatory milestones to the CyDex shareholders and former license holders. In addition, we will pay CyDex shareholders, for each respective year from 2014 through 2016, 20% of all CyDex-related revenue, but only to the extent that, and beginning only when, CyDex-related revenue for such year exceeds $15.0 million; plus an additional 10% of all CyDex-related revenue recognized during such year, but only to the extent that, and beginning only when aggregate CyDex-related revenue for such year exceeds $35.0 million. We have paid $7.5 million to the CyDex shareholders for revenue sharing payments under the terms of the CVR agreement. The estimated fair value of the contingent liabilities recorded as part of the CyDex acquisition at March 31, 2015 was $9.4 million.
Metabasis

In connection with the acquisition of Metabasis in January 2010, we entered into four CVR agreements with Metabasis shareholders. The CVRs entitle the holders to cash payments upon the sale or licensing of certain assets and upon the achievement of specified milestones. The fair value of the liability at March 31, 2015 was $2.5 million, and as of December 31, 2014 was $3.7 million.
Leases and Off-Balance Sheet Arrangements

We lease our office and research facilities under operating lease arrangements with varying terms through November 2019. The agreements provide for increases in annual rents based on changes in the Consumer Price Index or fixed percentage increases ranging from 3.0% to 3.5%. We also sublease a portion of our facilities through leases which expire between 2015 and 2016. The sublease agreements provide for a 3% increase in annual rents. We had no off-balance sheet arrangements at March 31, 2015 and December 31, 2014.

Cash Flows

Operating Activities

Operating activities generated cash of $7.6 million for the three months ended March 31, 2015, compared to $2.6 million for the same period in 2014.

The cash generated for the three months ended March 31, 2015 reflects net loss of $0.1 million, adjusted by $6.5 million of non-cash items to reconcile net income to net cash generated from operations. These reconciling items primarily reflect stock-based compensation of $2.9 million, amortization of debt discount and issuance fees of $2.5 million, depreciation and amortization of $0.7 million, and a realized loss on investments of $0.4 million. The cash generated during the three months ended March 31, 2015 is further impacted by changes in operating assets and liabilities due primarily to a decrease in accounts receivable of $5.2 million, a decrease in restricted cash of $0.7 million, a decrease in other current assets of $0.4 million, offset by a decrease in accounts payable and accrued liabilities of $4.7 million, an increase in other long-term assets of $0.3 million, and an increase in inventory of $0.2 million (excluding $2.4 million inventory purchased but not paid for at the period end).

The cash generated for the three months ended March 31, 2014 reflects net income of $2.1 million, adjusted by $4.5 million of non-cash items to reconcile net income to net cash generated from operations. These reconciling items primarily reflect an increase in the estimated fair value of contingent liabilities of $1.9 million, depreciation and amortization of $0.7 million, stock-based compensation of $2.1 million, a change in deferred income taxes of $0.1 million, accretion of notes payable of $0.1 million, and $0.1 million for a loss on asset write-offs, partially offset by a realized gain on investments of $0.5 million. The cash generated during the three months ended March 31, 2014 is further impacted by changes in operating assets and liabilities due primarily to an increase in accounts receivable of $2.5 million, an increase in inventory of $0.6 million, a decrease in accounts payable and accrued liabilities of $1.0 million, and a decrease in deferred revenue of $0.1 million, partially offset by a decrease in other current assets of $0.1 million.

Investing Activities

Investing activities used cash of $2.8 million for the three months ended March 31, 2015, compared to $1.0 million for the same period in 2014.


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Cash used by investing activities during the three months ended March 31, 2015 primarily reflects payments to CVR holders and other contingency payments of $3.2 million, partially offset by proceeds from short-term investments of $0.5 million.

Cash used by investing activities during the three months ended March 31, 2014 primarily reflects payments to CVR holders of $1.6 million, partially offset by proceeds from short-term investments of $0.6 million.

Financing Activities

Financing activities provided cash of $0.8 million for the three months ended March 31, 2015, compared to use of cash of $0.2 million for the same period in 2014.

Cash provided by financing activities for the three months ended March 31, 2015 reflects $0.8 million of proceeds received from stock option exercises and our employee stock purchase plan.
    
Cash used by financing activities for the three months ended March 31, 2014 primarily reflects $3.4 million of repayment of debt, partially offset by proceeds from stock option exercises and our employee stock purchase plan of $3.2 million.


Contractual Obligations

As of March 31, 2015, future minimum payments due under our contractual obligations were as follows (in thousands):

 
Payments Due by Period
 
Total
 
Less than 1 year
 
2-3 years
 
4-5 years
 
Obligations for uncertain tax positions (1)
$
—

 
$
—

 
$
—

 
$
—

 
Co-promote termination obligations (2)
$
88

 
$
88

 
$
—

 
$
—

 
Purchase obligations (3)
$
25,379

 
$
6,614

 
$
18,765

 
$
—

 
Contingent liabilities (4)
$
—

 
$
—

 
$
—

 
$
—

 
Note and interest payment obligations (5)
$
253,269

 
$
1,838

 
$
3,675

 
$
247,756

 
Operating lease obligations (6)
$
7,647

 
$
4,107

 
$
2,611

 
$
929

 

(1)
Expected payments related to obligations for uncertain tax positions cannot be reasonably estimated.
(2)
Co-promote termination obligations represent our legal obligation as primary obligor to Organon due to the fact that Organon did not consent to the legal assignment of the co-promote termination obligation to Pfizer. The liability is offset by an asset which represents a non-interest bearing receivable for future payments to be made by Pfizer.
(3)
Purchase obligations represent our commitments under our supply agreement with Hovione, LLC for Captisol purchases.
(4)
Contingent liabilities to former shareholders and licenseholders are subjective and affected by changes in inputs to the valuation model including management’s assumptions regarding revenue volatility, probability of commercialization of products, estimates of timing and probability of achievement of certain revenue thresholds and developmental and regulatory milestones and affect amounts owed to former license holders and CVR holders. Only payments due as a result of achievement of revenue thresholds or development and regulatory milestones are included in the table above.
(5)
Note and interest payment obligations represent principal and interest payments due under the 2019 Convertible Senior Notes.
(6)
We lease office and research facilities that we have fully vacated under operating lease arrangements expiring in July 2015 and August 2016. We sublet portions of these facilities through the end of our lease. As of March 31, 2015, we expect to receive aggregate future minimum lease payments totaling $2.5 million (nondiscounted) over the duration of the sublease agreement (not included in the table above) as follows: less than one year: $1.0 million, and one to two years: $1.0 million, and 3 to 4 years $0.6 million.
    
We are also required under our CyDex CVR Agreement to invest at least $1.5 million per year, inclusive of employee expenses, in the acquired business through the year ended 2015. As of March 31, 2015, we expect to exceed that amount for the year ended December 31, 2015.


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Critical Accounting Policies

Certain of our policies require the application of management judgment in making estimates and assumptions that affect the amounts reported in our consolidated financial statements and the disclosures made in the accompanying notes. Those estimates and assumptions are based on historical experience and various other factors deemed applicable and reasonable under the circumstances. The use of judgment in determining such estimates and assumptions is by nature, subject to a degree of uncertainty. Accordingly, actual results could differ materially from the estimates made. There have been no material changes in our accounting policies as disclosed in our annual report on Form 10-K for the year ended December 31, 2014.

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ITEM 3.
QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are exposed to market risk from interest rates and equity prices which could affect our results of operations, financial condition and cash flows. We manage our exposure to these market risks through our regular operating and financing activities.

Investment Portfolio Risk
At March 31, 2015, our investment portfolio included investments in available-for-sale equity securities of $11.5 million. These securities are subject to market risk and may decline in value based on market conditions.

Equity Price Risk

Our 2019 Convertible Senior Notes include conversion and settlement provisions that are based on the price of our common stock at conversion or maturity of the notes, as applicable. The minimum amount of cash we may be required to pay is $245.0 million, but will ultimately be determined by the price of our common stock. The fair values of our 2019 Convertible Senior Notes are dependent on the price and volatility of our common stock and will generally increase or decrease as the market price of our common stock changes. In order to minimize the impact of potential dilution to our common stock upon the conversion of the 2019 Convertible Senior Notes, we entered into convertible bond hedges covering 3,264,643 shares of our common stock. Concurrently with entering into the convertible bond hedge transactions, we entered into warrant transactions whereby we sold warrants with an exercise price of approximately $125.08 per share, subject to adjustment. Throughout the term of the 2019 Convertible Senior Notes, the notes may have a dilutive effect on our earnings per share to the extent the stock price exceeds the conversion price of the notes. Additionally, the warrants may have a dilutive effect on our earnings per share to the extent the stock price exceeds the strike price of the warrants.

Foreign currency risk

Through our licensing and business operations, we are exposed to foreign currency risk. Foreign currency exposures arise from transactions denominated in a currency other than the functional currency and from foreign denominated revenues and profit translated into U.S. dollars. Our collaborative partners sell our products worldwide in currencies other than the U.S. dollar. Because of this, our revenues from royalty payments are subject to risk from changes in exchange rates.

We purchase Captisol from Hovione, located in Lisbon, Portugal. Payments to Hovione are denominated and paid in U.S. dollars, however the unit price of Captisol contains an adjustment factor which is based on the sharing of foreign currency risk between the two parties. The effect of an immediate 10% change in foreign exchange rates would not have a material impact on our financial condition, results of operations or cash flows. We do not currently hedge our exposures to foreign currency fluctuations.

Interest rate risk
We are exposed to market risk involving rising interest rates. To the extent interest rates rise, our interest costs could increase. An increase in interest costs of 10% would not have a material impact on our financial condition, results of operations or cash flows.


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ITEM 4.
CONTROLS AND PROCEDURES

As of March 31, 2015, we carried out an evaluation, under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures, as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act. Based upon and as of the date of that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective to provide reasonable assurance that information required to be disclosed by us in reports we file or submit pursuant to the Exchange Act is (1) recorded, processed, summarized and reported within the time periods specified in SEC rules and forms, and (2) accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

Our disclosure controls were designed to provide reasonable assurance that the controls and procedures would meet their objectives. Our management, including the Chief Executive Officer and Chief Financial Officer, does not expect that our disclosure controls will prevent all error and all fraud. A control system, no matter how well designed and operated, can provide only reasonable assurance of achieving the designed control objectives and management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within the Company have been detected. These inherent limitations include the realities that judgments in decision making can be faulty, and that breakdowns can occur because of simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons, by collusions of two or more people, or by management override of the control. Because of the inherent limitations in a cost-effective, maturing control system, misstatements due to error or fraud may occur and not be detected.

There have not been any changes in our internal control over financial reporting (as defined in Rule 13a-15(f) and 15d-15(f) under the Exchange Act) during the quarter of the fiscal year to which this report relates that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.



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PART II.
OTHER INFORMATION

Item 1.
Legal Proceedings

From time to time we are subject to various lawsuits and claims with respect to matters arising out of the normal course of our business. Due to the uncertainty of the ultimate outcome of these matters, the impact on future financial results is not subject to reasonable estimates.

Securities Litigation
           On June 8, 2012, a federal securities class action and shareholder derivative lawsuit was filed in the Eastern District of Pennsylvania against the Genaera Defendants for allegedly breaching their fiduciary duties to Genaera shareholders.  The lawsuit also names us and our CEO, as additional defendants for allegedly aiding and abetting the Genaera Defendants' various breaches of fiduciary duties based on our purchase of a licensing interest in a development-stage pharmaceutical drug program from the Genaera Liquidating Trust in May 2010 and our subsequent sale of half of its interest in the transaction to Biotechnology Value Fund, Inc. 
Following an amendment to the complaint and a round of motions to dismiss, the court dismissed the amended complaint with prejudice on August 12, 2013.  Plaintiff appealed that dismissal on September 10, 2013, and the Third Circuit reversed on October 17, 2014.  Plaintiff then filed a second amended complaint with the district court, which we moved to dismiss on March 20, 2015.  Plaintiff’s opposition is due May 11, 2015.  We intend to continue to vigorously defend the claim against us and our CEO.  Due to the complex nature of the legal and factual issues involved, however, the outcome of this matter is not presently determinable.



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ITEM 1A.
RISK FACTORS

The following is a summary description of some of the many risks we face in our business. You should carefully review these risks in evaluating our business, including the businesses of our subsidiaries. You should also consider the other information described in this report.

Revenues based on Promacta and Kyprolis represent a substantial portion of our overall current and/or expected future revenues.

GSK is obligated to pay us royalties on its sales of Promacta and we receive revenue from Amgen based on both sales of Kyprolis and purchases of Captisol material for clinical and commercial uses. These payments are expected to be a substantial portion of our ongoing revenues for some time. As a result, any setback that may occur with respect to Promacta or Kyprolis could significantly impair our operating results and/or reduce the market price of our stock. Setbacks for Promacta and Kyprolis could include problems with shipping, distribution, manufacturing, product safety, marketing, government regulation or reimbursement, licenses and approvals, intellectual property rights, competition with existing or new products and physician or patient acceptance of the product, as well as higher than expected total rebates, returns, discounts, or unfavorable exchange rates.

Revenue from sales of Captisol material to our collaborative partners represents a significant portion of our current revenue and our continued development and supply of Captisol is subject to a number of risks.

In January 2011, we completed our merger with CyDex. All of CyDex's products and product candidates, as well as the technology that it outlicenses, are based on Captisol. As a result, any setback that may occur with respect to Captisol could significantly impair our operating results and/or reduce the market price of our stock. Setbacks for Captisol could include problems with shipping, distribution, manufacturing, product safety, marketing, government regulation or reimbursement, licenses and approvals, intellectual property rights, competition with existing or new products and physician or patient acceptance of the products using Captisol, as well as higher than expected total rebates, returns or discounts for such products.

If products or product candidates incorporating Captisol technology were to cause any unexpected adverse events, the perception of Captisol safety could be seriously harmed. If this were to occur, we may not be able to market Captisol products unless and until we are able to demonstrate that the adverse event was unrelated to Captisol, which we may not be able to do. Further, whether or not the adverse event was a result of Captisol, we could be required by the FDA to submit to additional regulatory reviews or approvals, including extensive safety testing or clinical testing of products using Captisol, which would be expensive and, even if we were to demonstrate that the adverse event was unrelated to Captisol, would delay our marketing of Captisol-enabled products and receipt of revenue related to those products, which could significantly impair our operating results and/or reduce the market price of our stock.

We obtain Captisol from a sole source supplier, and if this supplier were to cease to be able, for any reason, to supply Captisol to us in the amounts we require, or decline to supply Captisol to us, we would be required to seek an alternative source, which could potentially take a considerable length of time and impact our revenue and customer relationships.

We currently depend on our arrangements with our outlicensees to sell products using our Captisol technology. These agreements generally provide that outlicensees may terminate the agreements at will. If our outlicensees discontinue sales of products using our Captisol technology, fail to obtain regulatory approval for products using our Captisol technology, fail to satisfy their obligations under their agreements with us, or choose to utilize a generic form of Captisol should it become available, or if we are unable to establish new licensing and marketing relationships, our financial results and growth prospects would be materially affected. We maintain inventory of Captisol, which has a five year shelf life, at three geographically spread storage locations in the United States and Europe.  If we were to encounter problems maintaining our inventory, such as natural disasters, at one or all three of these locations, it could lead to supply interruptions. Further, under most of our Captisol outlicenses, the amount of royalties we receive will be reduced or will cease when the relevant patent expires. Our high purity patents, U.S. Patent Nos. 7,635,773 and 8,410,077 and foreign equivalents, are not expected to expire until 2029 and our morphology patents, U.S. Patent Nos. 7,629,331 and 8,049,003 and foreign equivalents, are not expected to expire until 2025, but the initially filed patents relating to Captisol expired starting in 2010 in the United States and will expire by 2016 in most countries outside the United States. If our other intellectual property rights are not sufficient to prevent a generic form of Captisol from coming to market and if in such case our outlicensees choose to terminate their agreements with us, our Captisol revenue may decrease significantly. 


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The product candidates of our partners and us face significant development and regulatory hurdles prior to partnering and/or marketing which could delay or prevent licensing, sales and/or milestone revenue.

Before we or our partners obtain the approvals necessary to sell any of our unpartnered assets or partnered programs, we must show through preclinical studies and human testing that each potential product is safe and effective. We and/or our partners have a number of partnered programs and unpartnered assets moving toward or currently awaiting regulatory action. Failure to show any product's safety and effectiveness could delay or prevent regulatory approval of a product and could adversely affect our business. The drug development and clinical trials process is complex and uncertain. For example, the results of preclinical studies and initial clinical trials may not necessarily predict the results from later large-scale clinical trials. In addition, clinical trials may not demonstrate a product's safety and effectiveness to the satisfaction of the regulatory authorities. A number of companies have suffered significant setbacks in advanced clinical trials or in seeking regulatory approvals, despite promising results in earlier trials. The FDA may also require additional clinical trials after regulatory approvals are received. Such additional trials may be expensive and time-consuming, and failure to successfully conduct those trials could jeopardize continued commercialization of a product.

The rates at which we complete our scientific studies and clinical trials depends on many factors, including, but are not limited to, our ability to obtain adequate supplies of the products to be tested and patient enrollment. Patient enrollment is a function of many factors, including the size of the patient population, the proximity of patients to clinical sites, the eligibility criteria for the trial and other potential drug candidates being studied. Delays in patient enrollment for our trials may result in increased costs and longer development times. In addition, our collaborative partners have rights to control product development and clinical programs for products developed under our collaborations. As a result, these collaborative partners may conduct these programs more slowly or in a different manner than expected. Moreover, even if clinical trials are completed, we or our collaborative partners still may not apply for FDA approval in a timely manner or the FDA still may not grant approval.

We rely heavily on collaborative relationships, and any disputes or litigation with our collaborative partners or termination or breach of any of the related agreements could reduce the financial resources available to us, including milestone payments and future royalty revenues.

Our strategy for developing and commercializing many of our potential products, including products aimed at larger markets, includes entering into collaboration agreements with corporate partners and others. These agreements give our collaborative partners significant discretion when deciding whether or not to pursue any development program. Our existing collaborations may not continue or be successful, and we may be unable to enter into future collaborative arrangements to develop and commercialize our unpartnered assets.

For instance, our collaboration with Viking includes a $2.5 million loan that we made to Viking to be repaid one year after Vikings initial public offering or upon certain other financing events. Viking recently completed its initial public offering and while we expect that Viking will be able to repay the loan in April 2016, there is no guaranty that they will have the resources to do so at that time. Despite our expectations, if Viking is unable to repay the loan at that time, we may decide to extend the term of our loan to Viking, invest additional capital, or terminate our agreements with Viking. We cannot make any assurances on the collectibility of our loan to Viking.

In addition, our collaborators may develop drugs, either alone or with others that compete with the types of drugs they are developing with us (or that we are developing on our own). This would result in increased competition for our or our partners' programs. If products are approved for marketing under our collaborative programs, revenues we receive will depend on the manufacturing, marketing and sales efforts of our collaborative partners, who generally retain commercialization rights under the collaborative agreements. Generally, our current collaborative partners also have the right to terminate their collaborations at will or under specified circumstances. If any of our collaborative partners breach or terminate their agreements with us or otherwise fail to conduct their collaborative activities successfully (for example, by not making required payments when due, or at all), our product development under these agreements will be delayed or terminated. Disputes or litigation may also arise with our collaborators (with us and/or with one or more third parties), including those over ownership rights to intellectual property, know-how or technologies developed with our collaborators. Such disputes or litigation could adversely affect our rights to one or more of our product candidates. Any such dispute or litigation could delay, interrupt or terminate the collaborative research, development and commercialization of certain potential products, create uncertainty as to ownership rights of intellectual property, or could result in litigation or arbitration. The occurrence of any of these problems could be time-consuming and expensive and could adversely affect our business.


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Expirations of, challenges to or failure to secure patents and other proprietary rights may significantly hurt our business.

Any conflicts resulting from the patent rights of others could significantly reduce the coverage of our patents and limit our ability to obtain meaningful patent protection. We have had and will continue to have discussions with our current and potential collaborative partners regarding the scope and validity of our patents and other proprietary rights. If a collaborative partner or other party successfully establishes that our patent rights are invalid, we may not be able to continue our existing collaborations beyond their expiration. Any determination that our patent rights are invalid also could encourage our collaborative partners to seek early termination of our agreements. Such invalidation could adversely affect our ability to enter into new collaborations.

We may also need to initiate litigation, which could be time-consuming and expensive, to enforce our proprietary rights or to determine the scope and validity of others' rights. If this occurs, a court may find our patents or those of our licensors invalid or may find that we have infringed on a competitor's rights. In addition, if any of our competitors have filed patent applications in the United States which claim technology we also have invented, the United States Patent and Trademark Office may require us to participate in expensive interference proceedings to determine who has the right to a patent for the technology.

We also rely on unpatented trade secrets and know-how to protect and maintain our competitive position. We require our employees, consultants, collaborative partners and others to sign confidentiality agreements when they begin their relationship with us. These agreements may be breached, and we may not have adequate remedies for any breach. In addition, our competitors may independently discover our trade secrets.

Generally, our success will depend on our ability and the ability of us and our licensors to obtain and maintain patents and proprietary rights for our potential products both in the United States and in foreign countries. Patents may not be issued from any of these applications currently on file, or, if issued, may not provide sufficient protection. Our patent position, like that of many biotechnology and pharmaceutical companies, is uncertain and involves complex legal and technical questions for which important legal principles are unresolved. We may not develop or obtain rights to products or processes that are patentable. Even if we do obtain patents, such patents may not adequately protect the technology we own or have licensed. In addition, others may challenge, seek to invalidate, infringe or circumvent any patents we own or license and rights we receive under those patents may not provide competitive advantages to us. For example, our European patent related to Agglomerated forms of Captisol was limited during an opposition proceeding and could be challenged further on appeal, and the rejection of our European patent application related to High Purity Captisol is currently being appealed.

We have obtained patent protection in the United States through 2025 on one or more Agglomerated forms of Captisol and through 2029 on one or more High Purity forms of Captisol. We also have filed patent applications covering the Captisol product that if issued, would not be set to expire until 2033 (for example, our patent WO 2013/130666, filed February 27, 2013, contains composition of matter and use claims). There is no guarantee that our patents will be sufficient to prevent competitors from creating a generic form of Captisol and competing against us, or from developing combination patents for products that will prevent us from developing products using those APIs. In addition, most of the agreements in our Captisol outlicensing business, provide that once the relevant patent expires, the amount of royalties we receive will be reduced or eliminated.

Our collaborative partners may change their strategy or the focus of their development and commercialization efforts with respect to our partnered programs, and the success of our partnered programs could be adversely affected.

If our collaborative partners terminate their collaborations with us or do not commit sufficient resources to the development, manufacture, marketing or distribution of our partnered programs, we could be required to devote additional resources to our partnered programs, seek new collaborative partners or abandon such partnered programs, all of which could have an adverse effect on our business. For example, Pfizer recently informed us they have stopped selling Avinza to wholesalers and we expect future revenues for Avinza to be minimal.


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Third party intellectual property may prevent us or our partners from developing our potential products and we may owe a portion of any payments we receive from our collaborative partners to one or more third parties.

Our success will depend on our ability and the ability of our collaborative partners to avoid infringing the proprietary rights of others, both in the United States and in foreign countries. In addition, disputes with licensors under our license agreements may arise which could result in additional financial liability or loss of important technology and potential products and related revenue, if any. Further, the manufacture, use or sale of our potential products or our collaborative partners' products or potential products may infringe the patent rights of others. This could impact Captisol, Promacta, Kyprolis, Avinza, Duavee, Viviant, Conbriza, Nexterone, and other products or potential products.

Several drug companies and research and academic institutions have developed technologies, filed patent applications or received patents for technologies that may be related to our business. Others have filed patent applications and received patents that conflict with patents or patent applications we have licensed for our use, either by claiming the same methods or compounds or by claiming methods or compounds that could dominate those licensed to us. In addition, we may not be aware of all patents or patent applications that may impact our ability to make, use or sell any of our potential products. For example, U.S. patent applications may be kept confidential while pending in the United States Patent and Trademark Office and patent applications filed in foreign countries are often first published six months or more after filing.

Disputes with our collaborative partners could delay our ability and the ability of our collaborative partners to achieve milestones or our receipt of other payments. In addition, other possible disputes could delay, interrupt or terminate the research, development and commercialization of certain potential products being developed by either our collaborative partners or by us. The occurrence of any of the foregoing problems could be time-consuming and expensive and could adversely affect our business.

Third parties have not directly threatened an action or claim against us, although we do periodically receive other communications or have other conversations with the owners of other patents or other intellectual property. If others obtain patents with conflicting claims, we may be required to obtain licenses to those patents or to develop or obtain alternative technology. We may not be able to obtain any such licenses on acceptable terms, or at all. Any failure to obtain such licenses could delay or prevent us from pursuing the development or commercialization of our potential products.

In general, litigation claims can be expensive and time consuming to bring or defend against and could result in settlements or damages that could significantly impact our results of operations and financial condition. We cannot predict or determine the occurrence or outcome of these matters or reasonably estimate the amount or range of amounts of any fines or penalties that might result from a settlement or an adverse outcome. However, a settlement or an adverse outcome could have a material adverse effect on our financial position, liquidity and results of operations.

If we are unable to maintain the effectiveness of our internal controls, our financial results may not be accurately reported.

The Sarbanes-Oxley Act of 2002 requires, among other things, that we maintain effective internal controls for financial reporting and disclosure controls and procedures. While we anticipate maintaining the integrity of our internal controls over financial reporting and all other aspects of Sarbanes-Oxley Act of 2002, we cannot be certain that a material weakness will not be identified when we test the effectiveness of our control systems in the future. The existence of one or more material weaknesses or significant deficiencies in our internal control over financial reporting could result in errors in our consolidated financial statements. Substantial costs and resources may be required to rectify any internal control deficiencies. If we fail to maintain the adequacy of our internal controls in accordance with applicable standards, we may be unable to conclude on an ongoing basis that we have effective internal controls over financial reporting. If we cannot produce reliable financial reports, our business and financial condition could be harmed, investors could lose confidence in our reported financial information, or the market price of our stock could decline significantly. In addition, our ability to obtain additional financing to operate and expand our business, or obtain additional financing on favorable terms, could be materially and adversely affected, which, in turn, could materially and adversely affect our business, our financial condition and the market value of our securities. Moreover, our reputation with customers, lenders, investors, securities analysts and others may be adversely affected.


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We may undertake strategic acquisitions in the future and any difficulties from integrating such acquisitions could adversely affect our stock price, operating results and results of operations.

We may acquire companies, businesses and products that complement or augment our existing business. We may not be able to integrate any acquired business successfully or operate any acquired business profitably. Integrating any newly acquired business could be expensive and time-consuming. Integration efforts often take a significant amount of time, place a significant strain on managerial, operational and financial resources and could prove to be more difficult or expensive than we predict. The diversion of our management's attention and any delay or difficulties encountered in connection with any future acquisitions we may consummate could result in the disruption of our on-going business or inconsistencies in standards and controls that could negatively affect our ability to maintain third-party relationships. Moreover, we may need to raise additional funds through public or private debt or equity financing, or issue additional shares, to acquire any businesses or products, which may result in dilution for stockholders or the incurrence of indebtedness.

As part of our efforts to acquire companies, business or product candidates or to enter into other significant transactions, we conduct business, legal and financial due diligence with the goal of identifying and evaluating material risks involved in the transaction. Despite our efforts, we ultimately may be unsuccessful in ascertaining or evaluating all such risks and, as a result, might not realize the intended advantages of the transaction. If we fail to realize the expected benefits from acquisitions we may consummate in the future or have consummated in the past, whether as a result of unidentified risks, integration difficulties, regulatory setbacks, litigation with current or former employees and other events, our business, results of operations and financial condition could be adversely affected. If we acquire product candidates, we will also need to make certain assumptions about, among other things, development costs, the likelihood of receiving regulatory approval and the market for such product candidates. Our assumptions may prove to be incorrect, which could cause us to fail to realize the anticipated benefits of these transactions.

In addition, we will likely experience significant charges to earnings in connection with our efforts, if any, to consummate acquisitions. For transactions that are ultimately not consummated, these charges may include fees and expenses for investment bankers, attorneys, accountants and other advisors in connection with our efforts. Even if our efforts are successful, we may incur, as part of a transaction, substantial charges for closure costs associated with elimination of duplicate operations and facilities and acquired In-Process Research and Development, or IPR&D, charges. In either case, the incurrence of these charges could adversely affect our results of operations for particular quarterly or annual periods.

We may not be able to hire and/or retain key employees.

If we are unable to hire and/or retain key employees, we may not have sufficient resources to successfully manage our assets or our business, and we may not be able to perform our obligations under various contracts and commitments. Furthermore, there can be no assurance that we will be able to retain all of our key management and scientific personnel. If we fail to retain such key employees, it could materially and adversely affect our business, financial condition, results of operations or the market price of our stock.

Aggregate revenues based on sales of our other products may not meet expectations.

Revenues based on sales of Avinza, Duavee, Conbriza, Noxafil IV and Nexterone may not meet expectations. Any setback that may occur with respect to these products could impair our operating results and/or reduce the market price of our stock. Setbacks for these products could include problems with shipping, distribution, manufacturing, product safety, marketing, government regulation or reimbursement, licenses and approvals, intellectual property rights, competition with existing or new products and physician or patient acceptance of the product, as well as higher than expected total rebates, returns or discounts. These products also are or may become subject to generic competition. Any such setback could reduce our revenue.

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If plaintiffs bring product liability lawsuits against us or our partners, we or our partners may incur substantial liabilities and may be required to limit commercialization of our approved products and product candidates, and we may be subject to other liabilities related to the sale of our prior commercial product lines.

As is common in our industry, our partners and we face an inherent risk of product liability as a result of the clinical testing of our product candidates in clinical trials and face an even greater risk for commercialized products. Although we are not currently a party to product liability litigation, if we are sued, we may be held liable if any product or product candidate we develop causes injury or is found otherwise unsuitable during product testing, manufacturing, marketing or sale. Regardless of merit or eventual outcome, liability claims may result in decreased demand for any product candidates or products that we may develop, injury to our reputation, discontinuation of clinical trials, costs to defend litigation, substantial monetary awards to clinical trial participants or patients, loss of revenue and the inability to commercialize any products that we develop. We have product liability insurance that covers our clinical trials up to a $10.0 million annual limit. If we are sued for any injury caused by our product candidates or any future products, our liability could exceed our total assets.

In addition, we have agreed to indemnify Eisai and King Pharmaceuticals (now a subsidiary of Pfizer), under certain circumstances pursuant to the asset purchase agreements we entered into in connection with the sale of our prior commercial product lines.  Some of our indemnification obligations still remain and our potential liability in certain circumstances is not limited to specific dollar amounts. We cannot predict the liabilities that may arise as a result of these matters. Any claims related to our indemnification obligations to Pfizer or Eisai could materially and adversely affect our financial condition. In addition, Pfizer assumed our obligation to make payments to Organon based on net sales of Avinza (the fair value of which was $0.1 million as of March 31, 2015).  We remain liable to Organon in the event Pfizer defaults on this obligation. Any requirement to pay a material amount to Organon could adversely affect our business and the price of our securities. The sale of our prior commercial product lines does not relieve us of exposure to product liability risks on products we sold prior to divesting these product lines. A successful product liability claim or series of claims brought against us may not be insured against and could result in payment of significant amounts of money and divert management's attention from our business.

If our partners do not reach the market with our partnered programs before our competitors offer products for the same or similar uses, or if our partners are not effective in marketing our partnered programs, our revenues from product sales, if any, will be reduced.

We face intense competition in our development activities. Our competitors might succeed in obtaining regulatory approval for competitive products more rapidly than our partners can for our partnered programs. In addition, competitors might develop technologies and products that are less expensive and perceived to be safer or more effective than those being developed by us or our partners, which could impair our product development and render our technology obsolete.

If our business does not perform according to our expectations, we may not have sufficient resources to operate our business as currently contemplated.
    
We believe that our capital resources, including our currently available cash, cash equivalents, and short-term investments as well as our current and future royalty revenues, will be adequate to fund our operations at their current levels at least for the next 12 months. However, changes may occur that would cause us to consume available capital resources before that time and we may need to complete additional equity or debt financings to fund our operations. Our inability to obtain additional financing could adversely affect our business. Financings may not be available at all or on terms favorable to us. In addition, these financings, if completed, may not meet our capital needs and could result in substantial dilution to our stockholders. If adequate funds are not available, we may be required to delay, reduce the scope of or eliminate one or more of our research or drug development programs. We may also be required to liquidate our business or file for bankruptcy protection. Alternatively, we may be forced to attempt to continue development by entering into arrangements with collaborative partners or others that require us to relinquish some or all of our rights to technologies or drug candidates that we would not otherwise relinquish.

We recently sold $245.0 million aggregate principal amount of 0.75% Convertible Senior Notes, which may impact our financial results, result in the dilution of existing stockholders, and restrict our ability to take advantage of future opportunities.
    
In August of 2014, we sold $245.0 million aggregate principal amount of 0.75% Convertible Senior Notes due 2019, or the 2019 Convertible Senior Notes. We will be required to pay interest on the 2019 Convertible Senior Notes until they come due or are converted, and the payment of that interest will reduce our net income. The sale of the 2019 Convertible

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Senior Notes may also affect our earnings per share figures, as accounting procedures require that we include in our calculation of earnings per share the number of shares of our common stock into which the 2019 Convertible Senior Notes are convertible. The 2019 Convertible Senior Notes may be converted, under the conditions and at the premium specified in the 2019 Convertible Senior Notes, into cash and shares of our common stock, if any (subject to our right to pay cash in lieu of all or a portion of such shares). If shares of our common stock are issued to the holders of the 2019 Convertible Senior Notes upon conversion, there will be dilution to our shareholders equity. Upon the occurrence of certain circumstances, holders of the 2019 Convertible Senior Notes may require us to purchase all or a portion of their notes for cash, which may require the use of a substantial amount of cash. If such cash is not available, we may be required to sell other assets or enter into alternate financing arrangements at terms that may or may not be desirable. The existence of the 2019 Convertible Senior Notes and the obligations that we incurred by issuing them may restrict our ability to take advantage of certain future opportunities, such as engaging in future debt or equity financing activities. As of March 31, 2015, no events have occurred which would trigger settlement of the notes in cash.
Our ability to use our net operating losses, or NOLs, to offset taxes that would otherwise be due could be limited or lost entirely.

Our ability to use our NOLs to offset taxes that would otherwise be due is dependent upon our generation of future taxable income before the expiration dates of the NOLs, and we cannot predict with certainty whether we will be able to generate future taxable income. In addition, even if we generate taxable income, realization of our NOLs to offset taxes that would otherwise be due could be restricted by annual limitations on use of NOLs triggered by a past or future “ownership change” under Section 382 of the Internal Revenue Code and similar state provisions. An “ownership change” may occur when there is a 50% or greater change in total ownership of our company by one or more 5% shareholders within a three-year period. The loss of some or all of our NOLs could materially and adversely affect our business, financial condition and results of operations. In addition, California and certain states have suspended use of NOLs for certain taxable years, and other states may consider similar measures. As a result, we may incur higher state income tax expense in the future. Depending on our future tax position, continued suspension of our ability to use NOLs in states in which we are subject to income tax could have an adverse impact on our operating results and financial condition. The calculation of the amount of our net operating loss carryforwards may be changed as a result of a challenge by the IRS or other governmental authority or our learning of new information about the ownership of, and transactions in, our securities.

We use hazardous materials, which may expose us to significant liability.

In connection with our research and development activities, we handle hazardous materials, chemicals and various radioactive compounds. To properly dispose of these hazardous materials in compliance with environmental regulations, we are required to contract with third parties. We believe that we carry reasonably adequate insurance for toxic tort claims. However, we cannot eliminate the risk or predict the exposure of accidental contamination or injury from the handling and disposing of hazardous materials, whether by us or our third-party contractors. Any accident in the handling and disposing of hazardous materials may expose us to significant liability.

Our shareholder rights plan, concentration of ownership and charter documents may hinder or prevent change of control transactions.

Our shareholder rights plan and provisions contained in our certificate of incorporation and bylaws may discourage transactions involving an actual or potential change in our ownership. In addition, our Board of Directors may issue shares of common or preferred stock without any further action by the stockholders. Our directors and certain of our institutional investors, collectively beneficially own a significant portion of our outstanding common stock. We have in the past granted waivers to investors allowing them to increase their ownership level above the limit set forth in our shareholder rights agreement. Such restrictions, circumstances and issuances may have the effect of delaying or preventing a change in our ownership. If changes in our ownership are discouraged, delayed or prevented, it would be more difficult for our current Board of Directors to be removed and replaced, even if you or our other stockholders believe that such actions are in the best interests of us and our stockholders.


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Funding of our drug development programs may not result in future revenues.

Our drug development programs may require substantial additional capital to successfully complete, arising from costs to: conduct research, preclinical testing and human studies; establish pilot scale and commercial scale manufacturing processes and facilities; and establish and develop quality control, regulatory, marketing, sales and administrative capabilities to support these programs. While we expect to fund our research and development activities from cash generated from royalties and milestones from our partners in various past and future collaborations to the extent possible, if we are unable to do so, we may need to complete additional equity or debt financings or seek other external means of financing. These financings could depress our stock price. If additional funds are required to support our operations and we are unable to obtain them on terms favorable to us, we may be required to cease or reduce further development or commercialization of our products, to sell some or all of our technology or assets or to merge with another entity.

Our results of operations and liquidity needs could be materially negatively affected by market fluctuations and economic downturn.

Our results of operations could be materially negatively affected by economic conditions generally, both in the United States and elsewhere around the world. Continuing concerns over inflation, energy costs, geopolitical issues, the availability and cost of credit, and the U.S. financial markets have contributed to increased volatility and diminished expectations for the economy and the markets going forward. Domestic and international equity markets periodically experience heightened volatility and turmoil. These events may have an adverse effect on us. In the event of a market downturn, our results of operations could be adversely affected by those factors in many ways, including making it more difficult for us to raise funds if necessary, and our stock price may further decline. We cannot provide assurance that our investments are not subject to adverse changes in market value. If our investments experience adverse changes in market value, we may have less capital to fund our operations.

Our stock price has been volatile and could experience a sudden decline in value.

The market prices for securities of biotechnology and pharmaceutical companies have historically been highly volatile, and the market has recently experienced significant price and volume fluctuations that are unrelated to the operating performance of particular companies. Continued volatility in the overall capital markets could reduce the market price of our common stock in spite of our operating performance. Further, high stock price volatility could result in higher stock-based compensation expense.

Our common stock has experienced significant price and volume fluctuations and may continue to experience volatility in the future. Many factors may have a significant impact on the market price of our common stock, including, but not limited to, the following factors: results of or delays in our preclinical studies and clinical trials; the success of our collaboration agreements; publicity regarding actual or potential medical results relating to products under development by us or others; announcements of technological innovations or new commercial products by us or others; developments in patent or other proprietary rights by us or others; comments or opinions by securities analysts or major stockholders; future sales of our common stock by existing stockholders; regulatory developments or changes in regulatory guidance; litigation or threats of litigation; economic and other external factors or other disaster or crises; the departure of any of our officers, directors or key employees; period-to-period fluctuations in financial results; and price and volume fluctuations in the overall stock market.

Impairment charges pertaining to goodwill, identifiable intangible assets or other long-lived assets from our mergers and acquisitions could have an adverse impact on our results of operations and the market value of our common stock.

The total purchase price pertaining to our acquisitions in recent years of Pharmacopeia, Neurogen, Metabasis and CyDex have been allocated to net tangible assets, identifiable intangible assets, in-process research and development and goodwill. To the extent the value of goodwill or identifiable intangible assets or other long-lived assets become impaired, we will be required to incur material charges relating to the impairment. Any impairment charges could have a material adverse impact on our results of operations and the market value of our common stock.


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The occurrence of a catastrophic disaster could damage our facilities beyond insurance limits or we could lose key data which could cause us to curtail or cease operations.

We are vulnerable to damage and/or loss of vital data from natural disasters, such as earthquakes, tornadoes, power loss, fire, floods and similar events, as well as from accidental loss or destruction. If any disaster were to occur, our ability to operate our business could be seriously impaired. We have property, liability, and business interruption insurance which may not be adequate to cover our losses resulting from disasters or other similar significant business interruptions, and we do not plan to purchase additional insurance to cover such losses due to the cost of obtaining such coverage. Any significant losses that are not recoverable under our insurance policies could seriously impair our business, financial condition and prospects.

We rely on information technology and any failure, inadequacy, interruption or security lapse of that technology, including any cyber security incidents, could harm our ability to operate our business effectively.

Our business is increasingly dependent on critical, complex and interdependent information technology systems, including internet-based systems, to support business processes as well as internal and external communications. Despite the implementation of security measures, our internal computer systems and those of our collaborative partners are vulnerable to damage from cyber-attacks, computer viruses, security breaches, unauthorized access, natural disasters, terrorism, war and telecommunication and electrical failures. System failures, accidents or security breaches could cause interruptions in our operations, could lead to the loss of trade secrets or other intellectual property, could lead to the public exposure of personal information of our employees and others, and could result in a material disruption of our clinical and commercialization activities and business operations, in addition to possibly requiring substantial expenditures to remedy. To the extent that any disruption or security breach were to result in a loss of, or damage to, our data or applications, or inappropriate disclosure of confidential or proprietary information, we could incur liability and our business and financial condition could be harmed.


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ITEM 2.
UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Purchases of Equity Securities By the Issuer and Affiliated Purchasers
There were no repurchases by us of our common stock during the quarter ended March 31, 2015 under the stock repurchase program approved by our board of directors on August 11, 2014, under which we may acquire up to $200.0 million of our common stock in open market and negotiated purchases for a period of one year.
 
ITEM 3.
DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4.
MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5.
OTHER INFORMATION

Item 5.02(e) Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

Effective May 6, 2015, the Compensation Committee of the Board of Directors of the Company approved a special quarterly payment in the amount of $20,000 for the Company’s Director of Accounting, Melanie Herman, payable immediately to Ms. Herman and throughout the term of her service as Interim Chief Financial Officer, which will commence on May 21, 2015.


ITEM 6.
EXHIBITS

The Exhibit Index to this Quarterly Report on Form 10-Q is incorporated herein by reference.


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SIGNATURES


Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Date:
May 11, 2015
 
By:
/s/ Nishan de Silva
 
 
 
 
Nishan de Silva
 
 
 
 
Vice President, Finance and Strategy and Chief Financial Officer
 
 
 
 
Duly Authorized Officer and Principal Financial Officer


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EXHIBIT INDEX

Exhibit Number
Description
 
 
31.1
Certification by Principal Executive Officer, Pursuant to Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2
Certification by Principal Financial Officer, Pursuant to Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1
Certifications by Principal Executive Officer and Principal Financial Officer, Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS
XBRL Instance Document
101.SCH
XBRL Taxonomy Extension Schema Document
101.CAL
XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF
XBRL Taxonomy Extension Definition Linkbase Document
101.LAB
XBRL Taxonomy Extension Label Linkbase Document
101.PRE
XBRL Taxonomy Extension Presentation Linkbase Document




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