10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)



x	Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
	For the Quarterly Period Ended September 30, 2015
	Or
¨	Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
	For the transition period from ________ to ___________

Commission File No. 0-23047

SIGA Technologies, Inc.
(Exact name of registrant as specified in its charter)



Delaware	13-3864870
(State or other jurisdiction of	(IRS Employer Identification. No.)
incorporation or organization)

660 Madison Avenue, Suite 1700	10065
New York, NY	(zip code)
(Address of principal executive offices)

Registrant’s telephone number, including area code: (212) 672-9100

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 ¨.

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, 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 ¨.

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 definition of “large accelerated filer”, “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (check one): Large Accelerated Filer ¨ Accelerated Filer x Non-Accelerated Filer ¨ Smaller Reporting Company ¨.

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

As of of October 26, 2015 the registrant had outstanding 54,114,296 shares of common stock, par value $.0001, per share

Table of Contents

SIGA TECHNOLOGIES, INC.
FORM 10-Q

Table of Contents



		Page No.
PART I-FINANCIAL INFORMATION
Item 1.	Condensed Consolidated Financial Statements (Unaudited)	3
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	17
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	23
Item 4.	Controls and Procedures	24

PART II- OTHER INFORMATION
Item 1.	Legal Proceedings	25
Item 1A	Risk Factors	26
Item 2.	Unregistered Sale of Equity securities and Use Proceeds	26
Item 3.	Defaults upon Senior Securities	26
Item 4.	Mine Safety Disclosures	26
Item 5.	Other Information	26
Item 6.	Exhibits	27
SIGNATURES		28

Table of Contents

PART I - FINANCIAL INFORMATION

Item 1 - Condensed Consolidated Financial Statements

SIGA TECHNOLOGIES, INC.

(DEBTOR-IN-POSSESSION)

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)



	September 30, 2015			December 31, 2014
ASSETS
Current assets
Cash and cash equivalents	$	129,289,275		$	99,713,929
Restricted cash	—			4,000,000
Accounts receivable	979,232			491,632
Inventory	1,091,948			19,044,477
Prepaid expenses and other current assets	888,481			898,705
Deferred tax assets	7,261,764			5,655,928
Total current assets	139,510,700			129,804,671

Property, plant and equipment, net	457,457			831,936
Deferred costs	54,308,995			32,860,874
Goodwill	898,334			898,334
Other assets	1,989,520			1,989,520
Total assets	$	197,165,006		$	166,385,335
LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT)
Current liabilities
Accounts payable	$	3,174,820		$	3,384,310
Accrued expenses and other current liabilities	3,063,410			2,085,995
Current portion of long term debt	—			1,989,948
Total current liabilities	6,238,230			7,460,253
Deferred revenue	255,094,794			81,799
Deferred income tax liability	7,519,847			5,900,468
Other liabilities	351,890			405,325
Liabilities subject to compromise	192,627,949			399,039,967
Total liabilities	461,832,710			412,887,812
Commitments and Contingencies (Note 14)
Stockholders’ equity (Deficit)
Common stock ($.0001 par value, 100,000,000 shares authorized, 54,114,296 and 53,504,296 issued and outstanding at September 30, 2015, and December 31, 2014, respectively)	5,411			5,351
Additional paid-in capital	176,675,169			175,483,180
Accumulated deficit	(441,348,284		)	(421,991,008		)
Total stockholders’ equity (deficit)	(264,667,704		)	(246,502,477		)
Total liabilities and stockholders’ equity (deficit)	$	197,165,006		$	166,385,335

The accompanying notes are an integral part of these financial statements.

Table of Contents

SIGA TECHNOLOGIES, INC.

(DEBTOR-IN-POSSESSION)

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME/LOSS (UNAUDITED)



	Three months ended September 30,						Nine months ended September 30,
	2015			2014			2015			2014
Revenues
Research and development	$	1,327,403		$	1,099,429		$	3,986,955		$	2,299,456

Operating expenses
Selling, general and administrative	2,321,236			4,334,972			7,987,498			10,195,293
Research and development	2,426,567			2,720,897			8,197,068			7,833,492
Patent preparation fees	194,444			306,009			762,881			817,944
Litigation accrual	13,553			175,465,718			40,291			175,565,839
Total operating expenses	4,955,800			182,827,596			16,987,738			194,412,568
Operating loss	(3,628,397		)	(181,728,167		)	(13,000,783		)	(192,113,112		)
Decrease (increase) in fair value of common stock warrants	—			11,532			—			313,425
Interest expense	—			(105,149		)	(266,726		)	(369,587		)
Other income, net	12,483			5			28,823			1,061
Reorganization items, net	(1,948,696		)	(301,937		)	(5,880,501		)	(301,937		)
Loss before income taxes	(5,564,610		)	(182,123,716		)	(19,119,187		)	(192,470,150		)
Benefit from (provision for) income taxes	(65,910		)	(57,953,045		)	(238,089		)	(53,936,733		)
Net and comprehensive income (loss)	$	(5,630,520	)	$	(240,076,761	)	$	(19,357,276	)	$	(246,406,883	)
Earnings (loss) per share: basic and diluted	$	(0.10	)	$	(4.49	)	$	(0.36	)	$	(4.62	)
Weighted average shares outstanding: basic and diluted	53,919,896			53,504,296			53,668,463			53,391,173

The accompanying notes are an integral part of these financial statements.

Table of Contents

SIGA TECHNOLOGIES, INC.

(DEBTOR-IN-POSSESSION)

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)



	Nine months ended September 30,
	2015			2014
Cash flows from operating activities:
Net income (loss)	$	(19,357,276	)	$	(246,406,883	)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and other amortization	199,144			268,037
Decrease in fair value of warrants	—			(313,425		)
Stock-based compensation	1,225,305			1,836,993
Write-off of leasehold improvements	238,501			—
Gain on sale of assets	—			(345,658		)
Non-cash interest expense	10,052			25,312
Changes in assets and liabilities:
Accounts receivable	(487,600		)	412,962
Inventory	17,952,529			2,388,438
Deferred costs	(21,448,121		)	(10,226,239		)
Prepaid expenses and other current assets	(35,232		)	29,306
Other assets	—			18,465
Deferred income taxes, net	13,543			53,565,505
Accounts payable, accrued expenses and other liabilities	714,490			(7,331,858		)
Liabilities subject to compromise	(206,412,018		)	386,944,313
Deferred revenue	255,012,995			(162,222,189		)
Net cash provided by operating activities	27,626,312			18,643,079
Cash flows from investing activities:
Capital expenditures	(63,166		)	(25,894		)
Proceeds from sale of assets	—			569,607
Restricted cash	4,000,000			(4,000,000		)
Net cash provided by (used in) investing activities	3,936,834			(3,456,287		)
Cash flows from financing activities:
Net proceeds from exercise of warrants and options	12,200			102,035
Payment of common stock tendered for employee tax obligations	—			(415,938		)
Repayment of long-term debt	(2,000,000		)	(1,500,001		)
Net cash used by financing activities	(1,987,800		)	(1,813,904		)
Net increase in cash and cash equivalents	29,575,346			13,372,888
Cash and cash equivalents at beginning of period	99,713,929			91,309,754
Cash and cash equivalents at end of period	$	129,289,275		$	104,682,642

The accompanying notes are an integral part of these financial statements

SIGA TECHNOLOGIES, INC.

(DEBTOR-IN-POSSESSION)

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

1. Condensed Consolidated Financial Statements

The financial statements are presented in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) for interim financial information and the rules and regulations of the Securities and Exchange Commission (the “SEC”) for quarterly reports on Form 10-Q and should be read in conjunction with the Company’s audited financial statements and notes thereto for the year ended December 31, 2014, included in the 2014 Annual Report on Form 10-K. All terms used but not defined elsewhere herein have the meaning ascribed to them in the Company’s 2014 Annual Report on Form 10-K filed on March 6, 2015. In the opinion of management, all adjustments (consisting of normal and recurring adjustments) considered necessary for a fair statement of the results of the interim periods presented have been included. The 2014 year-end condensed balance sheet data was derived from the audited financial statements but does not include all disclosures required by U.S. GAAP. The results of operations for the three and nine months ended September 30, 2015 are not necessarily indicative of the results expected for the full year.

Certain prior period amounts have been reclassified to the current period presentation related to employee recruiting expenses from research and development to selling, general and administrative.

Chapter 11 Filing

On September 16, 2014 (the “Petition Date”), SIGA Technologies, Inc. (the "Company") filed a voluntary petition for relief under chapter 11 of Title 11 of the United States Code (the “Bankruptcy Code”) in the United States Bankruptcy Court for the Southern District of New York (the “Bankruptcy Court”) chapter 11 Case Number 14-12623 (SHL). The Company is continuing to operate its business as a “debtor-in-possession” in accordance with the applicable provisions of the Bankruptcy Code.

The Company commenced the chapter 11 case to preserve and to ensure its ability to satisfy its commitments under the BARDA Contract (as defined in Note 4 to the financial statements) and to preserve its operations, which likely would have been jeopardized by the enforcement of a judgment stemming from the litigation with PharmAthene, Inc. (“PharmAthene”) (see Note 14 to the financial statements). While operating as a debtor-in-possession under chapter 11, the Company is pursuing what it believes is a meritorious appeal of the Delaware Court of Chancery Final Order and Judgment (as defined below), without the necessity of posting a bond.

PharmAthene Litigation

On August 8, 2014, the Delaware Court of Chancery issued its Remand Opinion and related order in the litigation initiated against the Company in 2006 by PharmAthene. In the Remand Opinion, the Court of Chancery determined, among other things, that PharmAthene is entitled to a lump sum damages award for its lost profits related to Tecovirimat, with interest and fees, based on United States government purchases of the Company's smallpox drug allegedly anticipated as of December 2006. On January 15, 2015, the Delaware Court of Chancery entered its Final Order and Judgment awarding PharmAthene approximately $195 million, including pre-judgment interest up to January 15, 2015 (the “Outstanding Judgment”). The Company's pending chapter 11 case prevents PharmAthene from taking any enforcement action at this time and also permits the Company's appeal of the Outstanding Judgment without the need to post a bond. On January 16, 2015, the Company filed a notice of appeal of the Outstanding Judgment with the Delaware Supreme Court and, on January 30, 2015, PharmAthene filed a notice of cross appeal. Briefing on the Company's appeal and PharmAthene's cross-appeal was completed on May 11, 2015. On October 7, 2015, the Delaware Supreme Court heard oral argument, en banc, and, as of the date hereof, has not issued its decision.

Going Concern

The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern and contemplate the realization of assets and the satisfaction of liabilities in the normal course of business. The Company’s ability to continue as a going concern is expected to be impacted by the outcome of the Company’s appeal of the post-remand judgment by the Delaware Court of Chancery (as defined in Note 14 to the financial statements), as well as the resolution of the Company's chapter 11 case. The Delaware Court of Chancery, acting on remand from the Delaware Supreme Court, entered its Final Judgment and Order on January 15, 2015, awarding PharmAthene approximately $195 million, including prejudgment interest up to January 15, 2015. In response to the potential impact of the Outstanding Judgment, the Company filed a voluntary petition for relief under chapter 11 of the Bankruptcy Code and is operating its business as a “debtor-in-possession” in accordance

Table of Contents

with the applicable provisions of the Bankruptcy Code. These factors raise substantial doubt about the Company’s ability to continue as a going concern. As a result of the chapter 11 filing and the Outstanding Judgment, the realization of assets and the satisfaction of liabilities are subject to uncertainties. Any reorganization plan in the Company's chapter 11 case could materially change the amounts and classifications of assets and liabilities reported in the consolidated financial statements. The accompanying financial statements do not include any adjustments related to the recoverability and classification of assets or the amounts and classification of liabilities or any other adjustments that might be necessary should the Company be unable to continue as a going concern.

2. Administration of Chapter 11 Case

On September 17, 2014, the Company received Bankruptcy Court approval of certain “first-day” motions, which preserved the Company's ability to continue operations without interruption in chapter 11. As part of the “first-day” motions, the Company received approval to pay or otherwise honor certain pre-petition obligations generally designed to support the Company's operations. Additionally, the Bankruptcy Court confirmed the Company's authority to pay for goods and services received post-petition in the ordinary course of business.

In October 2014, the U.S. Trustee for the Southern District of New York (the “U.S. Trustee”) appointed an official committee of unsecured creditors (the “UCC”). The UCC has a right to be heard on any issue in the Company’s chapter 11 case. There can be no assurance that the UCC will support the Company’s positions on matters to be presented to the Bankruptcy Court in the future or with respect to any plan of reorganization, when proposed.

As part of the chapter 11 case, the Company has retained, pursuant to Bankruptcy Court authorization, legal and other professionals to advise the Company in connection with the administration of its chapter 11 case and its litigation with PharmAthene, and certain other professionals to provide services and advice in the ordinary course of business. From time to time, the Company may seek Bankruptcy Court approval to retain additional professionals.

Pursuant to an order of the Bankruptcy Court, dated October 28, 2014, the Company was authorized to pay pre-petition obligations to certain service providers that are fully reimbursable by the U.S. Biomedical Advanced Research and Development Authority (the “BARDA”) pursuant to the BARDA Contract (as defined in Note 4). Pursuant to an order of the Bankruptcy Court, dated January 14, 2015, the Company was authorized to satisfy a fully-secured term loan provided by General Electric Capital Corporation in the approximate amount of $1.8 million. Such amount, and related fees, was paid by the Company on January 16, 2015 and all liens securing the credit facility were released.

Pursuant to orders entered by the Bankruptcy Court in April 2015, the Company was authorized to consummate the following transactions: assumption of the BARDA Contract, as amended by the BARDA Amendment (as defined in Note 4 to the financial statements); assumption of the Company’s commercial manufacturing agreement (the “Commercial Manufacturing Agreement”) with Albemarle Corporation (“Albemarle”), as amended by a 2015 amendment (the “2015 Amendment”); and assumption of the Company’s lease with Research Way Investments, as amended by the Tenth Addendum to Commercial Lease, for the Company’s research and development facility located at 4575 S.W. Research Way, Corvallis, Oregon. The 2015 Amendment to the Commercial Manufacturing Agreement with Albemarle provides the Company with improved pricing on future purchases of active pharmaceutical ingredient (“API”) for Tecovirimat. As part of the assumption of the Commercial Manufacturing Agreement, as amended, on April 30, 2015, the Company paid Albemarle’s prepetition claim under the Commercial Manufacturing Agreement of approximately $2.7 million. The Tenth Addendum to the Commercial Lease with Research Way Investments reduced the Company's rent costs for the research and development facility by approximately $35,000 per month, starting May 1, 2015. Additionally, as part of the Tenth Addendum, Research Way Investments withdrew its proof of claim for $971,451 filed in the Bankruptcy Court.

Plan of Reorganization

The Company has not yet filed a plan of reorganization with the Bankruptcy Court. The Company currently has the exclusive right to file a plan of reorganization through and including November 5, 2015, and to solicit votes on such a plan if filed by such date through and including December 28, 2015, subject to the ability of parties in interest to file motions seeking to terminate the Company's exclusive periods, as well as the Company's right to seek extensions of such periods. The Company has a right to seek extensions of such exclusive periods, subject to the statutory limit of 18 months from the Petition Date in the case of filing a plan and 20 months from the Petition Date in the case of soliciting and obtaining acceptances of such a plan. The implementation of a plan of reorganization is subject to confirmation of the plan by the Bankruptcy Court in accordance with the provisions of the Bankruptcy Code, and the occurrence of the effective date under the plan. At this time, there is no certainty as to when or if a plan will be filed, the provisions of a plan (including provisions with respect to the treatment of prepetition claims and equity interests), or whether a plan will be confirmed and become effective.

Table of Contents

Pre-Petition Claims

As a result of the chapter 11 filing, the payment of pre-petition liabilities is generally subject to compromise pursuant to a plan of reorganization. Generally, under the Bankruptcy Code, actions to enforce or otherwise effect payment of pre-bankruptcy filing liabilities are stayed. Although payment of pre-petition claims generally is not permitted, the Bankruptcy Court granted the Company authority to pay certain pre-petition claims in designated categories and subject to certain terms and conditions. Among other things, the Bankruptcy Court has authorized the Company to pay certain pre-petition claims relating to employees, critical vendors, a fully-secured pre-petition term loan, and services for which the Company receives reimbursement from the government.

On October 30, 2014, the Company filed its schedules of assets and liabilities and statement of financial affairs (the “Schedules”) with the Bankruptcy Court. The Bankruptcy Court entered an order setting March 30, 2015 as the deadline for filing proofs of claim (the “Bar Date”). The Bar Date is the date by which claims against the Company relating to the period prior to the commencement of the Company's chapter 11 case must be filed if such claims are not listed in liquidated, non-contingent and undisputed amounts in the Schedules, or if the claimant disagrees with the amount, characterization or classification of its claim as reflected in the Schedules. Claims that are subject to the Bar Date and which are not filed on or prior to the Bar Date may be barred from participating in any distribution that may be made under a plan of reorganization in the Company's chapter 11 case.

As of October 21, 2015 approximately 143 proofs of claim were outstanding (including claims that were previously identified on the Schedules), a portion of which assert, in part or in whole, unliquidated claims. In the aggregate, total liquidated proofs of claim amount to $199,265,756. This amount includes a claim asserted by PharmAthene in the amount of $194,649,042 in connection with the PharmAthene Litigation.

Separately, a contingent and unliquidated claim was filed by BARDA prior to the Bar Date in the amount of $109,339,609 in connection with amounts BARDA identified as subject to repayment in the event that the Company fails to perform under the terms of the BARDA Contract. As a result of the assumption of the BARDA Contract, as described above, BARDA withdrew the claim on August 4, 2015.

Certain proof of claims that have been filed relate to amounts which have been paid by the Company as of September 30, 2015.

The Company will ask the Bankruptcy Court to disallow claims that the Company believes are duplicative, have been later amended or superseded, are without merit, are overstated, have already been paid, or should be disallowed for other reasons. In addition, as a result of this process, the Company may identify additional liabilities that will need to be recorded or reclassified to Liabilities Subject to Compromise. The resolution of such claims could result in material adjustments to the Company’s financial statements. The determination of how liabilities will ultimately be treated cannot be made until the Bankruptcy Court confirms a plan of reorganization and the plan becomes effective. Accordingly, the ultimate amount or treatment of such liabilities is not determinable at this time.

Financial Reporting in Reorganization

The Company applied Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 852, Reorganizations effective on September 16, 2014, which is applicable to companies under bankruptcy protection, and requires amendments to the presentation of key financial statement line items. It requires that the financial statements for periods subsequent to the chapter 11 filing distinguish transactions and events that are directly associated with the reorganization from the ongoing operations of the business. Revenues, expenses, realized gains and losses, and provisions for losses that can be directly associated with the reorganization and restructuring of the business must be reported separately as reorganization items in the consolidated statements of operations. The balance sheet must distinguish pre-petition Liabilities Subject to Compromise from both those pre-petition liabilities that are not subject to compromise and from post-petition liabilities. Liabilities that may be subject to a plan of reorganization must be reported at the amounts expected to be allowed in the Company’s chapter 11 case, even if they may be settled for lesser amounts as a result of the plan of reorganization or negotiations with creditors. In addition, cash used by reorganization items are disclosed separately in the consolidated statements of cash flow.

Other Matters Related to the Chapter 11 Case

By motion filed with the Bankruptcy Court on April 8, 2015 (the “UCC 2004 Motion”), the Official Committee of Unsecured Creditors appointed in the Company's chapter 11 case (the “UCC”) sought authority to take discovery under Federal Rule of Bankruptcy Procedure 2004 (“Rule 2004”) with respect to certain discrete matters. Rule 2004 permits a creditors’ committee appointed in a chapter 11 case or other party in interest, subject to Bankruptcy Court approval, to conduct broad discovery relating to the acts, conduct, property and liabilities of a debtor or with respect to any matter that may affect the administration of the debtor’s bankruptcy case. The UCC 2004 Motion was filed for the purpose of determining whether the Company's estate has

Table of Contents

claims against certain officers and directors in connection with the matters sought to be investigated pursuant to the UCC 2004 Motion.

Pursuant to an order of the Bankruptcy Court, dated June 16, 2015 (the “2004 Order”), the UCC 2004 Motion was granted, in part, with regard to certain discovery requests specifically listed in the UCC 2004 Motion.

By a motion filed with the Bankruptcy Court on September 1, 2015, the UCC sought further discovery under Rule 2004 from PharmAthene and certain third parties with respect to one of the matters set forth in the UCC 2004 motion. By the order of the Bankruptcy Court dated October 2, 2015, the terms of which were agreed to by the Company and the UCC, the UCC was authorized to obtain certain additional discovery from PharmAthene related to the PharmAthene litigation.

As of the date hereof, the Company, pursuant to the 2004 Order, has provided to the attorneys for the UCC the discovery already produced by the Company to PharmAthene in the PharmAthene litigation. No document requests or deposition subpoenas have been served by the UCC on the Company. The Company does not expect that the discovery will lead to any viable causes of action with respect to the matters the UCC has been authorized to investigate under the 2004 Order.

NASDAQ/OTC Markets

On September 16, 2014, the Company received a letter from the NASDAQ Stock Market LLC asserting that, based on the Company’s chapter 11 filing, the Company no longer met the continuing listing requirements necessary to maintain its listing on the NASDAQ Stock Market and would be promptly delisted. On March 18, 2015, after the expiration of an extension of time granted pursuant to a Company appeal, the Company received a letter from the NASDAQ hearings panel stating that the Company's securities would be delisted from the NASDAQ Stock Market. On March 20, 2015, the Company's common shares were suspended from trading on the NASDAQ Global Market at the opening of business and the Company's shares began trading on the OTC Markets under the "SIGAQ" symbol.

3. Liabilities Subject to Compromise

Pre-petition liabilities that are subject to compromise are required to be reported at the amounts expected to be allowed in the Company’s chapter 11 case, even if they may be settled for lesser amounts. The amounts classified as Liabilities Subject to Compromise as of September 30, 2015 may be subject to future adjustments depending on Bankruptcy Court actions, further developments with respect to disputed claims, determinations of the secured status of certain claims, if any, the value of any collateral securing such claims, or other events. The Company cannot reasonably estimate the value of the claims that ultimately will be allowed in its chapter 11 case until the Company completes its evaluation, investigation and reconciliation of all filed claims.

The amount of Liabilities Subject to Compromise represents the Company's estimate, where an estimate is determinable, of known or potential pre-petition claims to be addressed in connection with its chapter 11 case. Such liabilities are reported at the Company's current estimate, where an estimate is determinable, of the allowed claim amount, even though they may be settled for lesser amounts. These claims remain subject to future adjustments depending on Bankruptcy Court actions, further developments with respect to disputed claims, determinations of the secured status of certain claims, if any, the value of any collateral securing such claims, or other events.

As of September 30, 2015 and December 31, 2014, Liabilities Subject to Compromise consisted of the following:



	September 30, 2015			December 31, 2014
Deferred revenue	—		(1)	$	203,696,194
Accounts payable - pre-petition	834,666		(2)	3,502,607
Expectation damages accrual- PharmAthene Litigation	187,820,361			187,820,361
Legal and expert fees accrual - PharmAthene Litigation	3,226,055		(3)	3,226,055
Other accrued expenses - pre-petition	746,867			794,750
Total	$	192,627,949		$	399,039,967

(1) As a result of the assumption of the BARDA Contract, as described in Note 2 to the financial statements, the Company reclassified deferred revenue relating to the BARDA Contract from Liabilities Subject to Compromise to deferred revenue.

Table of Contents

(2) As a result of the assumption of the Company's Commercial Manufacturing Agreement with Albemarle, as described in Note 2 to the financial statements, the Company paid its $2.7 million pre-petition liability to Albemarle.

(3) $3.2 million is the total accrual for reimbursement of PharmAthene attorney's fees and expert fees, against which there is a $2.7 million surety bond that is secured by cash collateral in the amount of $1.3 million.

Reorganization Items, net:

Reorganization items reflect expenses in connection with the chapter 11 filing. For the three and nine months ended September 30, 2015 and 2014, reorganization items consisted of the following:



	Three months ended September 30,				Nine months ended September 30,
	2015		2014		2015		2014
Legal fees	$	1,449,543	$	223,422	$	4,279,937	$	223,422
Professional fees	486,153		6,890		1,555,892		6,890
Trustee fees	13,000		1,625		39,000		1,625
Other	—		70,000		5,672		70,000
Total	$	1,948,696	$	301,937	$	5,880,501	$	301,937

During the three and nine months ended September 30, 2015, the Company paid approximately $2.2 million and $5.1 million, respectively, for reorganization items. During the three and nine months ended September 30, 2014, the Company paid approximately $90,565, for reorganization items.

4. Procurement Contract and Research Agreements

Procurement Contract

On May 13, 2011, the Company signed a contract with BARDA (the “BARDA Contract”) pursuant to which the Company agreed to deliver two million courses of Tecovirimat to the U.S. Strategic National Stockpile (“Strategic Stockpile”). The BARDA Contract is worth approximately $463 million, including $409.8 million for manufacture and delivery of 1.7 million courses of Tecovirimat and $54 million of potential reimbursements related to development and supportive activities (the “Base Contract”). In addition to the Base Contract, the BARDA Contract contains various options exercisable at BARDA’s discretion that would fund development and supportive activities such as work on pediatric and geriatric formulations of the drug as well as use of Tecovirimat for smallpox prophylaxis; would reward the Company $50 million for FDA approval for extension to 84-month expiry for Tecovirimat (from 38 month expiry as required in the Base Contract); and would fund production-related activities such as warm-base manufacturing. As of September 30, 2015, BARDA has not exercised any options. The BARDA Contract expires in September 2020.

Under the Base Contract, BARDA has agreed to buy from the Company 1.7 million courses of Tecovirimat. Additionally, the Company expects to contribute to BARDA 300,000 courses at no additional cost to BARDA.

As of September 30, 2015, the Company has received $249.2 million under the Base Contract related to the manufacture and physical delivery of courses of Tecovirimat. Included in this amount are: a $41 million advance payment in 2011 for the completion of certain planning and preparatory activities related to the Base Contract; a $12.3 million milestone payment in 2012 for the completion of the product labeling strategy for Tecovirimat; an $8.2 million milestone payment in 2013 for the completion of the commercial validation campaign for Tecovirimat; and $187.7 million of payments for physical deliveries of 1.4 million courses of Tecovirimat to the Strategic Stockpile beginning in 2013 (an additional 259,200 courses were delivered at no cost to BARDA). Product deliveries of 1.3 million of those courses in 2013 and 2014 were at a provisional dosage of 600 mg administered once daily. Product deliveries of 383,754 courses in 2015 were at a provisional dosage of 600 mg administered twice per day (1,200 mg per day).

On December 24, 2014, the Company announced that based on discussions with representatives of the FDA and BARDA, product deliveries of Tecovirimat subsequent to December 31, 2014 are expected to be at a provisional dosage of 600 mg administered twice per day (1,200 mg per day). This is a change from the provisional dosage that was in effect when product deliveries were made in 2013 and 2014 (600 mg per day). In 2013 and 2014, the provisional dosage of courses delivered to the Strategic Stockpile was 600 mg administered once per day. The change in the provisional dosage is based on FDA guidance received by the Company in 2014, subsequent to the delivery of 1.3 million courses of Tecovirimat. Based on the current provisional dosage of 600 mg administered twice per day (1,200 mg per day), the Company currently expects to supplement previously delivered courses of

Table of Contents

Tecovirimat, at no additional cost to BARDA, with additional dosages so that all of the courses previously delivered to BARDA will be at the new provisional dosage. The Company and BARDA have agreed to an amendment (the “BARDA Amendment”) of the BARDA Contract to reflect the foregoing, which modification was approved by the Bankruptcy Court in April 2015.

The Company expects to incur significant incremental costs with the production of additional dosage. The provisional dosage for Tecovirimat may be subject to additional changes based on possible additional FDA guidance.

The BARDA Contract is a multiple deliverable arrangement comprising delivery of courses and covered research and development activities. The BARDA Contract provides certain product replacement rights with respect to delivered courses. For this reason, recognition of revenue that might otherwise occur upon delivery of courses is expected to be deferred until the Company’s obligations related to potential replacement of delivered courses are satisfied. The Company assessed the selling price for each of the aforementioned deliverables, i.e., delivered courses and research and development activities. The selling price of delivered courses was determined by reference to other companies’ sales of drug products such as antiviral therapeutics, orphan drugs and drugs with potential life-saving impact similar to Tecovirimat, including products delivered to the Strategic Stockpile. The selling price of certain reimbursed research and development services was determined by reference to existing and past research and development grants and contracts between the Company and various government agencies.

The Company has recognized revenue for reimbursement of certain BARDA Contract research and development services. Cash inflows related to delivery of courses will continue to be recorded as deferred revenue. In addition, direct costs incurred by the Company to fulfill the delivery of courses including the supplementing of courses previously delivered under the BARDA Contract are being deferred and will be recognized as expenses over the same period that the related deferred revenue is recognized as revenue.

As of September 30, 2015 and December 31, 2014, deferred direct costs under the BARDA Contract of approximately $54.3 million and $32.9 million, respectively, are included in deferred costs on the consolidated balance sheets. As of September 30, 2015, the Company recorded $255.1 million of deferred revenue. Deferred revenue has been recorded for the delivery of courses of Tecovirimat to the Strategic Stockpile and certain research and development services provided as part of the BARDA Contract. For the three and nine months ended September 30, 2015, revenue from reimbursed research and development was $0.8 million and $2.3 million, respectively.

Research Agreements

The Company obtains funding from the contracts and grants it obtains from various agencies of the U.S. Government to support its research and development activities. Currently, the Company has one contract and one grant with varying expiration dates through February 2018 that provide for potential future aggregate research and development funding for specific projects of approximately $7.5 million.

The funded amount includes, among other things, options that may or may not be exercised at the U.S. Government’s discretion. Moreover, the contract and grant contain customary terms and conditions including the U.S. Government’s right to terminate or restructure a grant for convenience at any time.

In connection with the Optimization Program implemented in fourth quarter of 2013, in August 2014 the Company entered into an asset purchase agreement to sell and transfer its pre-clinical Arenavirus assets and research and development grant relating to Lassa fever to Kineta Four, LLC (the “Purchaser”), an unrelated party. In exchange for the transfer of certain assets and intellectual property rights, the Company received profit interest units (“Units”) in Kineta Four, LLC, and the Company is eligible for approximately $5.1 million of later-stage milestone payments and royalties of up to 4% on sales of drugs that use the transferred intellectual property rights. The Units, which have no voting rights, could provide the Company with a participation of approximately 5 - 10% of any cash distribution, if any, by Kineta Four, LLC, depending on future fundraising by Kineta Four, LLC. The assets transferred as part of the asset purchase agreement are the sole operating assets of Kineta Four, LLC. The asset purchase agreement had no impact on the Company's results of operations as the assets and intellectual property transferred to the Purchaser had no book value.

5. Financial Instruments

At September 30, 2015 and December 31, 2014, there were no liability classified warrants outstanding. The Company applied the Black-Scholes model to calculate the fair values of the respective derivative instruments using the contractual term of the warrants. Management estimated the expected volatility using a combination of the Company’s historical volatility and the volatility of a group of comparable companies.

Table of Contents

For the three months ended September 30, 2015 and 2014, the Company recorded gains of $0 and $11,532, respectively. For the nine months ended September 30, 2015 and 2014, the Company recorded gains of $0 and $313,425, respectively. The gain is a result of net decrease in fair value of Commitment Warrants (as discussed below) during the respective periods.

On June 19, 2008, the Company entered into a letter agreement (as amended, the “Letter Agreement”) that expired on June 19, 2010, with MacAndrews & Forbes LLC (“M&F”), a related party, for M&F’s commitment to invest, at the Company's discretion or at M&F’s option, up to $8 million in exchange for (i) the Company's common stock and (ii) warrants to purchase 40% of the number of the Company's shares acquired by M&F. In consideration for the commitment of M&F reflected in the Letter Agreement, on June 19, 2008, M&F received warrants to purchase 238,000 shares of the Company's common stock, initially exercisable at $3.06 (the “Commitment Warrants”). The Commitment Warrants were exercisable until June 19, 2012. On June 19, 2012, the Commitment Warrants were amended to extend expiration to June 19, 2014. Due to certain anti-dilution provisions, the Commitment Warrants were recorded as a liability, and consequently the “mark-to-market” adjustment to the fair value from the extended term was accounted immediately upon modification. On June 19, 2014, the Commitment Warrants expired. Through June 19, 2014, the Company recognized a mark-to-market gain of $129,398.

On June 18, 2010, M&F notified the Company of its intention to exercise its right to invest $5.5 million, the remaining amount available under the Letter Agreement following earlier investments and entered into a Deferred Closing and Registration Rights Agreement dated as of June 18, 2010 with the Company. On July 26, 2010, upon satisfaction of certain customary closing conditions, including the expiration of the applicable waiting period pursuant to the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, M&F funded the $5.5 million purchase price to the Company in exchange for the issuance of (i) 1,797,386 shares of common stock and (ii) warrants to purchase 718,954 shares of the Company's common stock at an exercise price of $3.519 per share; the warrants were exercisable for a term of four years from issuance. On July 26, 2014, the warrants expired. Through July 26, 2014, the Company recognized a mark-to-market gain of $184,027.

On April 30, 2013, the Company entered into a Services Agreement with M&F, a related party, for certain professional and administrative services. The Services Agreement has a term of three years. As consideration for the Services Agreement, the Company issued warrants to M&F to acquire 250,000 shares of common stock at an exercise price of $3.29 per share. The warrants are fully vested, immediately exercisable and remained exercisable for two years from issuance date. The grant-date fair value, determined using the Black-Scholes model as previously described, is recorded as an asset with a corresponding increase to equity. The asset is amortized over the contractual term of the warrant. On April 30, 2015, the warrants expired. For the nine months ended September 30, 2015 and 2014, the Company recorded an expense of $45,456 and $102,273, respectively.

The Company accounted for the warrants in accordance with the authoritative guidance which requires that free-standing derivative financial instruments that require net cash settlement be classified as assets or liabilities at the time of the transaction, and recorded at their fair value. Any changes in the fair value of the derivative instruments are reported in earnings or loss as long as the derivative contracts are classified as assets or liabilities.

6. Per Share Data

The Company incurred losses for the three and nine months ended September 30, 2015 and 2014 and as a result, certain equity instruments are excluded from the calculation of diluted earnings (loss) per share as the effect of such shares is anti-dilutive. The weighted average number of equity instruments excluded consist of:



	Three months ended September 30,		Nine months ended September 30,
	2015	2014	2015	2014
Stock Options	2,035,467	2,165,307	2,066,848	2,192,397
Stock-Settled Stock Appreciation Rights	365,689	383,890	369,222	393,551
Restricted Stock Units	853,840	1,155,638	1,039,907	1,221,653
Warrants	—	453,183	109,890	949,120

The appreciation of each stock-settled stock appreciation right was capped at a determined maximum value. As a result, the weighted average number shown in the table above for stock-settled stock appreciation rights reflects the weighted average maximum number of shares that could be issued.

Table of Contents

7. Fair Value of Financial Instruments

The carrying value of cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximates fair value due to the relatively short maturity of these instruments.

The measurement of fair value requires the use of techniques based on observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect our market assumptions. The inputs create the following fair value hierarchy:


•	Level 1 – Quoted prices for identical instruments in active markets.


•	Level 2 – Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations where inputs are observable or where significant value drivers are observable.


•	Level 3 – Instruments where significant value drivers are unobservable to third parties.

The Company uses model-derived valuations where inputs are observable in active markets.

As of December 31, 2014, the Company had $2.0 million of term loan outstanding from a loan entered into on December 31, 2012. In January 2015, the Company paid the term loan in full. The fair value of the loan, which was measured using Level 2 inputs, approximated book value at December 31, 2014. As of September 30, 2015, and 2014, the Company did not hold level 3 securities.

8. Related Party Transactions

In October 2012, the Company funded a letter of credit and deposit to take advantage of a lease for office space secured by an affiliate of M&F from a third party landlord on behalf of the Company. Pursuant to such letter of credit, in January 2013 the Company entered into a sublease in which the Company will pay all costs associated with the lease, including rent. All payments made by the Company pursuant to the sublease will either be directly or indirectly made to the third-party landlord and not retained by M&F or any affiliate. The sublease allows for a free rent period of five months beginning April 1, 2013; subsequent to the free rent period, monthly rent payments are $60,000 for the first five years and $63,000 for the next two years. Upon expiration on September 1, 2020, the sublease and lease provides for two consecutive five year renewal options.

The Company has a Services Agreement with M&F and a warrant agreement with M&F. On April 30, 2015, the warrants related to the service agreement expired. Refer to Note 5 to the financial statements for additional information.

A member of the Company’s Board of Directors is a member of the Company’s outside counsel. During the three months ended September 30, 2015, and 2014, the Company incurred costs of $102,000, and $148,000, respectively, related to services provided by the outside counsel. During the nine months ended September 30, 2015 and 2014, the Company incurred costs of $475,000 and $515,000, respectively. On September 30, 2015, the Company’s outstanding payables included $128,000 payable to the outside counsel.

An affiliate of M&F provided the Company with research services for a pre-clinical drug candidate. During the nine months ended September 30, 2015, the Company incurred costs of $25,750, related to services provided by the affiliate of M&F.

9. Inventory

During the nine months ended September 30, 2015, the Company delivered approximately 383,754 courses into the Strategic Stockpile based on provisional dosage of 600 mg administered twice per day (1,200 mg per day); due to the deferral of revenue under the BARDA Contract (see Note 4), amounts that would be otherwise recorded as cost of goods sold for delivered courses are recorded as deferred costs in the balance sheet. The value of inventory represents the costs incurred to manufacture Tecovirimat under the BARDA Contract. Additional costs incurred to complete production of courses of Tecovirimat will be recorded as inventory and reclassified to deferred costs upon delivery to the extent related revenue is deferred.

Table of Contents

Inventory consisted of the following at September 30, 2015 and December 31, 2014:



	September 30, 2015		December 31, 2014
Work in-process	$	1,091,948	$	16,688,682
Finished goods	—		2,355,795
Inventory	$	1,091,948	$	19,044,477

For the nine months ended September 30, 2015 and 2014, research and development expenses include inventory write-downs of approximately $60,000 and $0.9 million, respectively. For the three months ended September 30, 2015 and 2014, there were no inventory write-downs.

10. Property, Plant and Equipment

Property, plant and equipment consisted of the following at September 30, 2015 and December 31, 2014:



	September 30, 2015			December 31, 2014
Leasehold improvements	$	2,538,844		$	3,170,598
Computer equipment	732,949			669,782
Furniture and fixtures	452,696			488,807
	3,724,489			4,329,187
Less - accumulated depreciation	(3,267,032		)	(3,497,251		)
Property, plant and equipment, net	$	457,457		$	831,936

Pursuant to an order entered by the Bankruptcy Court in April 2015, the Company assumed its existing lease with Research Way Investments, as amended by the Tenth Addendum to Commercial Lease, for the Company's research and development facility located in Corvallis, Oregon. In connection with the Tenth Addendum to the Commercial Lease, the Company relinquished the second floor space at its research and development facility. With the space relinquishment, the Company wrote-off the related leasehold improvements and recognized a loss of $238,501.

Depreciation and amortization expense on property, plant, and equipment was $52,290 and $87,233 for the three months ended September 30, 2015 and 2014, respectively, and was $199,144 and $268,037 for the nine months ended September 30, 2015 and 2014, respectively.

11. Accrued Expenses

Accrued expenses and other current liabilities consisted of the following at September 30, 2015 and December 31, 2014:



	September 30, 2015		December 31, 2014
Bonus	$	802,250	$	17,500
Professional fees	579,970		534,775
Vacation	252,055		271,000
Other	1,429,135		1,262,720
Accrued expenses and other current liabilities	$	3,063,410	$	2,085,995

12. Income Taxes

Accounting Standards Codification (“ASC”) 740, Income Taxes requires that a valuation allowance be established when it is "more likely than not" that all or a portion of deferred tax assets will not be realized. A review of all available positive and negative evidence needs to be considered, including company's performance, the market environment in which the company operates, the utilization of past tax credits, length of carryback and carryforward periods, existing contracts, and unsettled circumstances that, if unfavorably resolved, would adversely affect future operations and profit levels in the future years. Based on the available evidence, the Company continues to conclude that its deferred tax assets are not realizable on a more-likely-than-not basis.

Table of Contents

For the three and nine months ended September 30, 2015, the Company recorded an income tax provision of $0.1 million and $0.2 million, respectively, on a pre-tax loss of $5.6 million and $19.1 million, respectively. The effective tax rate differs from the statutory rate as no income tax benefit was recorded for current year operating losses due to the Company’s assessment regarding tax realizability of its deferred tax asset.

13. Recent Accounting Pronouncements

In July 2015, the FASB issued Accounting Standards Update (“ASU”) No. 2015-11, Simplifying the Measurement of Inventory, which changes the measurement principle for inventory from the lower of cost or market to lower of cost and net realizable value. Inventory measured using last-in, first-out (LIFO) and the retail inventory method (RIM) are not impacted by the new guidance. The ASU only addresses the measurement of the inventory if its value declines or is impaired. Prior to the issuance of the standard, inventory was measured at the lower of cost or market (where market was defined as replacement cost, with a ceiling of net realizable value and floor of net realizable value less a normal profit margin). This necessitated obtaining three data points to determine market value. Replacing the concept of market with the single measurement of net realizable value is intended to create efficiencies. The ASU defines net realizable value as the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. This ASU is effective prospectively for annual periods beginning after December 15, 2016. The Company is currently evaluating the impact of adoption of the ASU and believes the adoption of the ASU will not have an impact on its consolidated financial statements.

In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements - Going Concern (Subtopic 205-40) Disclosure of Uncertainties about an Entity's Ability to Continue as a Going Concern. This ASU requires management to assess whether there is substantial doubt about the entity’s ability to continue as a going concern and, if so, disclose that fact. Management will also be required to evaluate and disclose whether its plans alleviate that doubt. This ASU states that, when making this assessment, management should consider relevant conditions or events that are known or reasonably knowable on the date the financial statements are issued or available to be issued. This ASU is effective for annual periods ending after December 15, 2017 and interim periods thereafter, and early adoption is permitted. The Company is currently evaluating the impact of adoption on its consolidated financial statements.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606). ASU No. 2014-09 supersedes the revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific revenue recognition guidance throughout the Industry Topics of the Accounting Standards Codification. Additionally, this update supersedes some cost guidance included in Subtopic 605-35, Revenue Recognition-Construction-Type and Production-Type Contracts. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. It is effective for the first interim period within annual reporting periods beginning after December 15, 2017, and early adoption is permitted for the first interim period within annual reporting period beginning after December 15, 2016. The Company is currently evaluating the impact of adoption on its consolidated financial statements.

In April 2014, FASB issued ASU No. 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of Entity, which changes the criteria for reporting discontinued operations while enhancing disclosure requirements. This ASU addresses sources of confusion and inconsistent application related to financial reporting of discontinued operations guidance in U.S. GAAP. Under this guidance, a discontinued operation is defined as a disposal of a component or group of components that is disposed of or is classified as held for sale and represents a strategic shift that has a major effect on an entity’s operations and financial results. This ASU is effective prospectively for fiscal years and interim periods within those years beginning after December 15, 2014. The Company's adoption of this guidance on January 1, 2105 did not have an effect on our financial statements.

14. Commitments and Contingencies

In December 2006, PharmAthene, Inc. (“PharmAthene”) filed an action against the Company in the Delaware Court of Chancery (the “Court” or “Court of Chancery”) captioned PharmAthene, Inc. v. SIGA Technologies, Inc., C.A. No. 2627-VCP. In its amended complaint, PharmAthene asked the Court to order the Company to enter into a license agreement with PharmAthene with respect to ST-246, also known as Tecovirimat, to declare that the Company was obliged to execute such a license agreement, and to award damages resulting from the Company's alleged breach of that obligation. PharmAthene also alleged that the Company breached an obligation to negotiate such a license agreement in good faith, and sought damages for promissory estoppel and unjust enrichment based on information, capital, and assistance that PharmAthene allegedly provided to the Company during the negotiation process. The Court tried the case in January 2011.

Table of Contents

In September 2011, the Court of Chancery issued its post-trial opinion. The Court denied PharmAthene’s requests for specific performance and expectation damages measured by present value of estimated future profits. Nevertheless, the Court held that the Company breached its duty to negotiate in good faith and was liable under the doctrine of promissory estoppel. The Court consequently awarded to PharmAthene what the Court described as an equitable payment stream or equitable lien consisting of fifty percent of the net profits that the Company achieves from sales of ST-246 after securing $40 million in net profits, for ten years following the first commercial sale. In addition, the Court awarded PharmAthene one-third of its reasonable attorneys’ fees and expert witness expenses.

In May 2012, the Court entered its final order and judgment in this matter, implementing its post-trial opinion. Among other things, the final order and judgment provided that (a) net profits would be calculated in accordance with generally accepted accounting principles applied consistently with how they are applied in the preparation of the Company's financial statements, (b) the net profits calculation would take into account expenses relating to ST-246 commencing with the Company's acquisition of ST-246 in August 2004, and (c) PharmAthene could recover $2.4 million of attorneys’ fees and expenses.

In June 2012, the Company appealed to the Supreme Court of the State of Delaware the final order and judgment and certain earlier rulings of the Court of Chancery. Shortly thereafter, PharmAthene filed its cross-appeal. The Company obtained a stay of enforcement of the fee and expense portion of the judgment by filing a surety bond for the amount of the judgment plus post-judgment interest. The Company posted $1.3 million of cash as a 50% collateral for a $2.7 million surety bond. The $1.3 million of cash collateral is recorded in other assets as of September 30, 2015.

On January 10, 2013, the parties briefed the issues, and argued before the Delaware Supreme Court, en banc.

On May 24, 2013, the Supreme Court of Delaware issued its decision, affirming the Delaware Court of Chancery’s judgment in part, reversing it in part, and remanding to Vice Chancellor Parsons. The Supreme Court affirmed the Chancery Court determination that the Company had breached its contractual obligation to negotiate in good faith; reversed the promissory estoppel holding; and, reversed the Vice Chancellor’s equitable damages award. The Supreme Court held that the trial judge may award expectation damages for breach of the contractual duty to negotiate in good faith if such damages are proven with reasonable certainty, and remanded to the Chancery Court for consideration of damages consistent with that holding. The Supreme Court held that the Chancery Court could reevaluate on remand an alternative award, if any, of attorneys’ fees and expert testimony expenses consistent with the Supreme Court’s opinion. Finally, the Supreme Court declined to consider all claims raised in PharmAthene’s cross appeal because it affirmed the Chancery Court’s finding that the Company was liable for breaching its contractual obligation to negotiate in good faith. On June 11, 2013, the Supreme Court issued its mandate to the Court of Chancery with the decision described above.

On August 8, 2014, the Court of Chancery issued its Remand Opinion. In its Remand Opinion, the Court of Chancery reversed its earlier conclusions and held that PharmAthene had carried its burden of demonstrating its entitlement to lump sum expectation damages for lost profits related to Tecovirimat by a preponderance of the evidence. It also stated that in order to calculate PharmAthene’s lost profits, several modifications to the valuation model presented at trial (which the Court of Chancery had rejected as too speculative, among other things, in its post-trial opinion) were required, which modifications the Court of Chancery set forth in the Remand Opinion. The Court of Chancery ruled that PharmAthene is entitled to the value of the revised calculations plus pre- and post-judgment interest at the legal rate with prejudgment interest to accrue from December 20, 2006. The Court of Chancery also denied and dismissed with prejudice PharmAthene’s claims that it is entitled to specific performance or an equitable payment stream, on the grounds that PharmAthene is limited to a contractual remedy and has an adequate remedy at law. Finally, the Court of Chancery ruled that PharmAthene was entitled to (i) forty percent of the reasonable attorneys’ fees and expenses it incurred through post-trial argument, (ii) one-third of the reasonable attorneys’ fees and expenses it incurred in the remand proceedings, (iii) sixty percent of expert witness fees it incurred in the pretrial and trial phases, and (iv) and one-tenth of the expert witness fees it incurred in the remand proceedings.

The Remand Opinion instructed the parties to perform damages calculations using the Court's newly modified but previously rejected model. PharmAthene was instructed to provide the Company with a lump sum damages calculation within 10 business days, following which the Company would respond within 10 business days with its own calculation, or agreement with PharmAthene. Additionally, the Remand Opinion specified that the competing calculations would be submitted to the Court of Chancery within 30 days from the date on which PharmAthene provided its lump sum damages calculation to the Company, if there is continuing disagreement on the narrow issue of performing the court's required calculations.

On September 16, 2014, as a consequence of the Company's chapter 11 filing, the legal proceedings with PharmAthene were stayed (see Note 1). On October 8, 2014, the Bankruptcy Court approved a Stipulation between the Company and PharmAthene partially lifting the stay to permit the litigation before the Delaware Chancery Court to proceed, including all appeals. The Stipulation, however, provides that the stay shall remain in effect with respect to the enforcement of any judgment that may be entered.

Table of Contents

On January 15, 2015, the Delaware Court of Chancery entered its Final Order and Judgment, awarding to PharmAthene $113,116,985 in contract expectation damages, plus pre-judgment interest up to January 15, 2015, and certain permitted legal fees, costs, and expenses, for a judgment of $194,649,042. Pursuant to the January 15 Final Order and Judgment, the Company also is liable to PharmAthene for post-judgment interest, in the amount of $30,663.89, per diem, which per diem amount shall periodically be adjusted.

On January 16, 2015, the Company appealed from certain portions of the Delaware Court of Chancery's rulings on remand, including but not limited to the Final Order and Judgment, to the Delaware Supreme Court. On January 29, 2015, PharmAthene cross-appealed from certain portions of the Delaware Court of Chancery’s rulings on remand, including but not limited to the Final Order and Judgment, to the Delaware Supreme Court. The Company filed its opening brief on appeal on March 2, 2015; PharmAthene filed its answering brief on appeal and opening brief on cross-appeal on April 1, 2015; the Company filed its reply brief on appeal and answering brief on cross-appeal on May 1, 2015; and PharmAthene filed its reply brief on cross- appeal on May 11, 2015. On October 7, 2015, the Delaware Supreme Court heard oral argument, en banc, and, as of the date hereof , has not issued its decision. There is no assurance that either appeal will be successful.

The ultimate loss to be incurred in the future from the PharmAthene litigation is highly uncertain and may differ significantly from the Outstanding Judgment. However, the Company believes that an ultimate loss of some amount is probable. Because the future outcome of the Company's appeal of the Final Order and Judgment to the Supreme Court of Delaware is highly uncertain, the Company has based its loss accrual on the January 7, 2015 Delaware Court of Chancery letter opinion, and the subsequent judgment entered by the Delaware Court of Chancery on January 15, 2015. Based on the Delaware Court of Chancery letter opinion, the Company has recorded a loss accrual for expectation damages of approximately $187.8 million as of September 30, 2015. This amount is classified as a liability subject to compromise. Included in the loss accrual, the Company accrued pre-judgment interest through September 16, 2014, SIGA’s chapter 11 filing date, because it is currently uncertain whether interest accrued subsequent to the chapter 11 filing date will be part of any allowed claim.

In addition to the damages loss accrual, the Company has separately accrued $3.2 million for PharmAthene’s attorneys’ fees and expert expenses, related to the case.

See Notes 1 and 2 to the financial statements for information relating to the Company's ongoing chapter 11 proceedings.

From time to time, the Company is involved in disputes or legal proceedings arising in the ordinary course of business. The Company believes that there is no dispute or litigation pending, except as discussed above, that could have, individually or in the aggregate, a material adverse effect on its financial position, results of operations or cash flows.

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion should be read in conjunction with our condensed consolidated financial statements and notes to those statements and other financial information appearing elsewhere in this Quarterly Report on Form 10-Q. In addition to historical information, the following discussion and other parts of this Quarterly Report contain forward-looking information that involves risks and uncertainties.

Overview

We are a company specializing in the development and commercialization of solutions for serious unmet medical needs and biothreats. Our lead product is Tecovirimat, also known as ST-246, an orally administered antiviral drug that targets orthopoxviruses, including smallpox. While Tecovirimat is not yet licensed as safe or effective by the U.S. Food & Drug Administration, it is a novel small-molecule drug that is being delivered to the Strategic National Stockpile under Project Bioshield.

Chapter 11 Filing

On September 16, 2014 (the “Petition Date”), the Company filed a voluntary petition for relief under chapter 11 of Title 11 of the United States Code (the “Bankruptcy Code”) in the United States Bankruptcy Court for the Southern District of New York (the “Bankruptcy Court”) chapter 11 Case Number 14-12623 (SHL). The Company is continuing to operate its business as a “debtor-in-possession” in accordance with the applicable provisions of the Bankruptcy Code.

The Company commenced the chapter 11 case to preserve and to ensure its ability to satisfy its commitments under the BARDA Contract (as defined in Note 4 ) and to preserve its operations, which likely would have been jeopardized by the enforcement of a judgment stemming from the litigation with PharmAthene (see Note 14 to the financial statements). While operating as a

Table of Contents

debtor-in-possession under chapter 11, the Company is pursuing what it believes is a meritorious appeal of the Delaware Court of Chancery Final Order and Judgment, without the necessity of posting a bond.

PharmAthene Litigation

On August 8, 2014, the Delaware Court of Chancery issued its Remand Opinion and related order in the litigation initiated against the Company in 2006 by PharmAthene. In the Remand Opinion, the Court of Chancery determined, among other things, that PharmAthene is entitled to a lump sum damages award for its lost profit related to Tecovirimat, with interest and fees, based on United States government purchases of the Company's smallpox drug allegedly anticipated as of December 2006. On January 15, 2015, the Delaware Court of Chancery entered its Final Order and Judgment awarding PharmAthene approximately $195 million, including pre-judgment interest up to January 15, 2015 (the "Outstanding Judgment"). The Company's pending chapter 11 case prevents PharmAthene from taking any enforcement action at this time and also permits the Company's appeal of the Outstanding Judgment without the need to post a bond. On January 16, 2015, the Company filed a notice of appeal of the Outstanding Judgment with the Delaware Supreme Court and, on January 30, 2015, PharmAthene filed a notice of cross appeal. Briefing on the Company's appeal and PharmAthene's cross-appeal was completed on May 11, 2015. On October 7, 2015, the Delaware Supreme Court heard oral argument, en banc, and, as of the date hereof, has not issued its decision.

Administration of Chapter 11 Case

In October, the U.S. Trustee for the Southern District of New York (the “U.S. Trustee”) appointed an official committee of unsecured creditors (the “UCC”). The UCC has a right to be heard on any issue in the Company’s chapter 11 case. There can be no assurance that the UCC will support the Company’s positions on matters to be presented to the Bankruptcy Court in the future or with respect to any plan of reorganization, when proposed.

Pursuant to orders entered by the Bankruptcy Court in April 2015, the Company was authorized to consummate the following transactions: assumption of the BARDA Contract, as amended by the BARDA Amendment (as defined in Note 4 to the financial statements); assumption of the Company’s commercial manufacturing agreement (the “Commercial Manufacturing Agreement”) with Albemarle Corporation (“Albemarle”), as amended by a 2015 amendment (the “2015 Amendment”); and assumption of the Company’s lease with Research Way Investments, as amended by the Tenth Addendum to Commercial Lease, for the Company’s research and development facility located at 4575 S.W. Research Way, Corvallis, Oregon. The 2015 Amendment to the Commercial Manufacturing Agreement with Albemarle provides the Company with improved pricing on future purchases of active pharmaceutical ingredient (“API”) for Tecovirimat. As part of the assumption of the Commercial Manufacturing Agreement, as amended, on April 30, 2015, the Company paid Albemarle’s prepetition claim under the Commercial Manufacturing Agreement of approximately $2.7 million. The Tenth Addendum to the Commercial Lease with Research Way Investments reduces the Company’s rent costs for the research and development facility by approximately $35,000 per month, starting May 1, 2015. Additionally, as part of the Tenth Addendum, Research Way Investments withdrew its proof of claim for $971,451 filed in the Bankruptcy Court.

Plan of Reorganization

Table of Contents

a right to seek extensions of such exclusive periods, subject to the statutory limit of 18 months from the Petition Date in the case of filing a plan and 20 months from the Petition Date in the case of soliciting and obtaining acceptances of such a plan. The implementation of a plan of reorganization is subject to confirmation of the plan by the Bankruptcy Court in accordance with the provisions of the Bankruptcy Code, and the occurrence of the effective date under the plan. At this time, there is no certainty as to when or if a plan will be filed, the provisions of a plan (including provisions with respect to the treatment of prepetition claims and equity interests), or whether a plan will be confirmed and become effective.

Other Matters Related to the Chapter 11 Case

By motion filed with the Bankruptcy Court on April 8, 2015 (the “UCC 2004 Motion”), the Official Committee of Unsecured Creditors appointed in the Company's chapter 11 case (“UCC”) sought authority to take discovery under Federal Rule of Bankruptcy Procedure 2004 (“Rule 2004”) with respect to certain discrete matters. Rule 2004 permits a creditors’ committee appointed in a chapter 11 case or other party in interest, subject to Bankruptcy Court approval, to conduct broad discovery relating to the acts, conduct, property and liabilities of a debtor or with respect to any matter that may affect the administration of the debtor’s bankruptcy case. The UCC 2004 Motion was filed for the purpose of determining whether the Company's estate has claims against certain officers and directors in connection with the matters sought to be investigated pursuant to the UCC 2004 Motion.

As of the date hereof, the Company, pursuant to the 2004 Order, has provided to the attorneys for the UCC the discovery already produced by SIGA to PharmAthene in the PharmAthene litigation. No document requests or deposition subpoenas have been served by the UCC on the Company. The Company does not expect that the discovery will lead to any viable causes of action with respect to the matters the UCC has been authorized to investigate under the 2004 Order.

NASDAQ/OTC Markets

Lead Product - Tecovirimat

On May 13, 2011, we signed the BARDA Contract pursuant to which we agreed to deliver two million courses of Tecovirimat to the Strategic Stockpile. The BARDA Contract is worth approximately $463 million, including $409.8 million for manufacture and delivery of 1.7 million courses of Tecovirimat and $54 million of potential reimbursements related to development and supportive activities. In addition to the Base Contract, the BARDA Contract contains various options exercisable at BARDA’s discretion that would fund development and supportive activities such as work on pediatric and geriatric formulations of the drug as well as use of Tecovirimat for smallpox prophylaxis; would reward the Company $50 million for FDA approval of an extension to 84-month expiry for Tecovirimat (from 38 month expiry as required in the Base Contract); and would fund production-related activities such as warm-base manufacturing. As of September 30, 2015, BARDA has not exercised any options. The BARDA Contract expires in September 2020.

As discussed in Item 1, “Legal Proceedings,” the amount of profits we will retain pursuant to the BARDA Contract may be adversely affected by the outcome of PharmAthene’s action against the Company.

Table of Contents

We believe Tecovirimat is among the first new small-molecule drugs delivered to the Strategic Stockpile under Project BioShield. Tecovirimat is an investigational product that is not currently approved by FDA as a treatment of smallpox or any other indication. FDA has designated Tecovirimat for “fast-track” status, creating a path for expedited FDA review and eventual regulatory approval.

Critical Accounting Estimates

The methods, estimates and judgments we use in applying our accounting policies have a significant impact on the results we report in our consolidated financial statements, which we discuss under the heading “Results of Operations” following this section of our Management’s Discussion and Analysis of Financial Condition and Results of Operations. Some of our accounting policies require us to make difficult and subjective judgments, often as a result of the need to make estimates of matters that are inherently uncertain. Our most critical accounting estimates include the valuation of stock-based awards including options, revenue recognition,income taxes and contingencies. Information regarding our critical accounting policies and estimates appear in item 7, Management's Discussion of Analysis and Financial Condition and Results of Operations, of our Annual Report on form 10-K for the year-ended December 31, 2014, as filed on March 6, 2015. During the nine months ended September 30, 2015 there were no significant changes to any critical accounting policies or to the related estimates and judgments involved in applying these policies.

Results of Operations

Three and nine months ended September 30, 2015 and 2014

Revenues from research and development contracts and grants for the three months ended September 30, 2015 and 2014, were $1.3 million and $1.1 million, respectively. The increase in revenue of $228,000, or 20.7%, reflects a $37,000 increase in revenues from our federal contracts supporting the development of Tecovirimat and a $191,000 increase in revenues from our grant revenues supporting research related to dengue fever.

Revenues from research and development contracts and grants for the nine months ended September 30, 2015 and 2014, were $4.0 million and $2.3 million, respectively. The increase in revenue of $1.7 million, or 73.4%, is due to a $867,000 increase in revenues from our federal contracts supporting the development of Tecovirimat and a $831,000 increase in revenues from our grant revenues supporting research related to dengue fever.

Selling, general and administrative expenses ("SG & A") for the three months ended September 30, 2015 and 2014, were $2.3 million and $4.3 million, respectively, reflecting a decrease of $2.0 million, or 46.5%. Expenses decreased in a broad array of categories. The decrease is primarily related to: a decrease of $854,000 in professional service fees in connection with business development and strategic initiatives; a decrease of $240,000 in employee compensation; and a decrease of $639,000 in general professional service fees, including legal fees. During three months ended September 30, 2014, the Company incurred general professional service fees in advance of filing its chapter 11 case.

SG&A expenses for the nine months ended September 30, 2015 and 2014, were $8.0 million and $10.2 million, respectively, reflecting a decrease of $2.2 million, or 21.7%. Expenses decreased across a broad array of categories. The decrease is primarily related to: a decrease of $890,000 in professional service fees in connection with business development and strategic initiatives; and a decrease of $704,000 in employee compensation and related expenses.

Research and development expenses ("R&D") for the three months ended September 30, 2015 and 2014 were $2.4 million and $2.7 million, respectively, reflecting a decrease of $294,000, or 10.8%. The decrease is primarily attributable to: a decrease of $58,000 in employee compensation and related expenses; a decrease of $120,000 in rent expense associated with the relinquishment of the second floor space at the research and development facility in Corvallis, Oregon; and a decrease in expenses related to the development of Tecovirimat and a dengue antiviral drug candidate.

R&D expenses for the nine months ended September 30, 2015 and 2014 were $8.2 million and $7.8 million, respectively, reflecting an increase of $364,000, or 4.6%. An increase of $821,000 in direct vendor-related expenses supporting the development of Tecovirimat and a dengue antiviral drug candidate, in combination with a $239,000 write-off of leasehold improvements, was partially offset by a $130,000 decrease in rent expense in connection with the relinquishment of the second floor space in the research and development facility in Corvallis, Oregon and a $611,000 decrease in inventory write-downs; inventory adjustments were $60,000 for the nine months ended September 30, 2015, whereas there was a net $671,000 inventory write-down for the nine months ended September 30, 2014.

Table of Contents

Patent expenses for the three and nine months ended September 30, 2015 were $194,000 and $763,000, respectively. Patent expenses for the three and nine months ended September 30, 2014 were $306,000 and $818,000, respectively. These expenses reflect our ongoing efforts to protect our lead drug candidates in varied geographic territories.

Changes in the fair value of liability classified warrants to acquire common stock were recorded as gains or losses. For the three and nine months ended September 30, 2014, we recorded a gain of $12,000 and $313,000, respectively, reflecting changes in fair market value of liability classified warrants outstanding during respective periods. The warrants to purchase our common stock were recorded at fair market value and classified as liabilities. At September 30, 2015, there were no liability classified warrants outstanding.

Interest expense for the three and nine months ended September 30, 2015 was zero and $267,000, respectively. Interest expense for the three and nine months ended September 30, 2014 was $105,000 and $370,000, respectively. On January 16, 2015, the Company fully paid a fully-secured term loan provided by General Electric Corporation, including fees incurred in connection with the termination of the term loan.

Reorganization expenses for the three and nine months ended September 30, 2015 were $1.9 million and $5.9 million, respectively. These expenses are in connection with the chapter 11 filing. See Note 1 to the financial statements for additional information.

For the three and nine months ended September 30, 2015, we incurred pre-tax losses of $5.6 million and $19.1 million and a corresponding income tax expense of $0.1 and $0.2 million, respectively. The effective tax rate during the three and nine months ended September 30, 2015 were (1.2). Our effective tax rate for the period ended September 30, 2015 differs from the statutory rate as no income tax benefit was recorded for current year operating losses due to the Company’s assessment regarding tax realizability of its deferred tax assets. For the three and nine months ended September 30, 2014, we incurred pre-tax losses of $182.1 million and $192.5 million and corresponding income tax expense of $58.0 million and $53.9 million, respectively.

The recognition of a valuation allowance for deferred taxes requires management to make estimates and judgments about our future profitability which are inherently uncertain. Deferred tax assets are reduced by a valuation allowance when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized. If the current estimates of future taxable income change, for example, based on the outcome in the PharmAthene litigation described in Item 1, “Legal Proceedings,” the Company’s assessment regarding the realization of deferred tax assets could change. Future changes in the estimated amount of deferred taxes expected to be realized will be reflected in the Company’s financial statements in the period the estimate is changed with a corresponding adjustment to operating results. Changes in estimates may occur often and can have a significant favorable or unfavorable impact on the Company’s operating results from period to period.

Liquidity and Capital Resources

As of September 30, 2015, we had $129.3 million in cash and cash equivalents compared with $99.7 million at December 31, 2014.

There can be no assurance that cash on hand, cash generated through operations by future delivery of courses to BARDA, cash generated from asset sales, and other available funds will be sufficient to satisfy the ultimate resolution of the PharmAthene litigation. The possibility of potential substantial loss from the PharmAthene litigation, combined with the costs attendant to the administration of the Company's chapter 11 case, raise substantial doubt about the Company's ability to continue as a going concern. The financial statements do not include any adjustment relating to the recoverability of the carrying amount of recorded assets and liabilities that might result from the outcome of these uncertainties. The Company believes that the funds received from the BARDA Contract (see Note 4 to the financial statements) together with our existing capital resources and continuing government contracts and grants will be sufficient to support our operations beyond the next twelve months; however, depending on the outcome of the Company's appeal of the PharmAthene litigation, the Outstanding Judgment may ultimately have a significant impact on the Company.

Change in Provisional Dosage of Tecovirimat

As discussed in Note 4 to the financial statements, the Company expects to incur significant production costs due to the change in provisional dosage of Tecovirimat.

Table of Contents

Operating Activities

Net cash provided by operations for the nine months ended September 30, 2015 and 2014 were $27.6 million and $18.6 million, respectively. For the nine months ended September 30, 2015, the Company received approximately $50.9 million from BARDA for the product delivery of Tecovirimat. Cash usage is related to recurring operating costs and is elevated in comparison to the nine months ended September 30, 2014 primarily due to costs attendant to the administration of the Company's chapter 11 case and expenses related to the PharmAthene litigation. Additionally, $2.1 million of payments were made to contract manufacturing organizations ("CMOs") for the manufacture of Tecovirimat. During the nine months ended September 30, 2014, the Company received approximately $40.8 million from BARDA for the delivery of products, partially offset by $7.1 million of payments to CMOs for the manufacture, development and other supportive activities for Tecovirimat.

Investing Activities

Net cash provided by (used in) investing activities for the nine months ended September 30, 2015 and 2014 were $4.0 million and $(3.5) million, respectively. During the third quarter of 2014, the Company set aside, in a separate account, $4 million as collateral for obligations under the GE term loan and classified this amount as restricted cash. During the first quarter of 2015, the Company paid the GE term loan in full, the collateral on the $4 million restricted cash was lifted and the restricted cash was reclassed to the cash and cash equivalent. During the second quarter of 2014, certain laboratory equipment was sold for a gross proceeds of $569,607. Capital expenditures for the nine months ended September 30, 2015 and 2014 were $63,166 and $25,894, respectively, reflecting purchases of fixed assets in the ordinary course of business.

Financing Activities

Net cash used by financing activities for the nine months ended September 30, 2015 and 2014 were $2.0 million and $1.8 million, respectively. During the nine months ended September 30, 2015, the Company repaid the GE term loan in full. During the nine months ended September 30, 2014, the Company repaid $1.5 million of the GE term loan in accordance with the loan repayment schedule and repurchased $416,000 of common stock to meet minimum statutory tax withholding requirements. The cash outlay was offset by proceeds of $102,000 from exercises of options and warrants to purchase common stock.

Off-Balance Sheet Arrangements

The Company does not have any off-balance sheet arrangements.

Recently Issued Accounting Standards

For discussion regarding the impact of accounting standards that were recently issued but not yet effective, on the Company's condensed consolidated financial statements, see Notes to Condensed Consolidated Financial Statements, Note 13 - Recently Issued Accounting Standards.

Table of Contents

Safe Harbor Statement

Certain statements in this Quarterly Report on Form 10-Q, including certain statements contained in “Business” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, as amended, including statements relating to the progress of SIGA’s development programs and time lines for bringing products to market, the enforceability of the BARDA Contract, the final resolution of our ongoing litigation with PharmAthene, Inc., the anticipated damages amount to be awarded to PharmAthene, Inc. in connection with the recent Delaware Chancery Court opinion, and the administration of SIGA’s chapter 11 case. Such forward-looking statements are subject to various known and unknown risks and uncertainties and SIGA cautions you that any forward-looking information provided by or on behalf of SIGA is not a guarantee of future performance. SIGA’s actual results could differ materially from those anticipated by such forward-looking statements due to a number of factors, some of which are beyond SIGA’s control, including, but not limited to, (i) the risk that potential products that appear promising to SIGA or its collaborators cannot be shown to be efficacious or safe in subsequent pre-clinical or clinical trials, (ii) the risk that SIGA or its collaborators will not obtain appropriate or necessary governmental approvals to market these or other potential products, (iii) the risk that SIGA may not be able to obtain anticipated funding for its development projects or other needed funding, including from anticipated governmental contracts and grants, (iv) the risk that SIGA may not complete performance under the BARDA Contract on schedule or in accordance with contractual terms, (v) the risk that our contractors will fail to preform, (vi) the risk that we will be unable to recover any loss, (vii) the risk that SIGA may not be able to secure or enforce sufficient legal rights in its products, including intellectual property protection, (viii) the risk that any challenge to SIGA’s patent and other property rights, if adversely determined, could affect SIGA’s business and, even if determined favorably, could be costly, (ix) the risk that regulatory requirements applicable to SIGA’s products may result in the need for further or additional testing or documentation that will delay or prevent seeking or obtaining needed approvals to market these products, (x) the risk that one or more protests could be filed and upheld in whole or in part or other governmental action taken, in either case leading to a delay of performance under the BARDA Contract or other governmental contracts, (xi) the risk that the BARDA Contract is modified or canceled at the request or requirement of the U.S. government, (xii) the risk that the volatile and competitive nature of the biotechnology industry may hamper SIGA’s efforts to develop or market its products, (xiii) the risk that the changes in domestic and foreign economic and market conditions may affect SIGA’s ability to advance its research or may affect its products adversely, (xiv) the effect of federal, state, and foreign regulation, including drug regulation and international trade regulation, on SIGA’s businesses, (xv) the risk that the chapter 11 case may make it more difficult to obtain additional financing, (xvi) the risk that our internal controls will not be effective in detecting or preventing a misstatement in our financial statements, (xvii) the risk that some amounts received and recorded as deferred revenue may someday be determined to have been more properly characterized as revenue when received, (xviii) the risk that some amounts received and recorded as deferred revenue ultimately may not be recognized as revenue, (xix) the risk that any appeal of the post-remand opinion may not be successful and that such post-remand opinion will be upheld in whole or in part, or that an appeal, if any, by SIGA may result in a different, less favorable ruling that could materially and adversely affect the Company, (xx) the risk that any appeal may result in extended and expensive litigation, (xxi) the risk that continued litigation with PharmAthene may impede SIGA’s efforts to continue to grow, (xxii) the risk that SIGA may not be able to establish its intended positions or otherwise may not prevail in any further court proceedings with respect to the litigation with PharmAthene, and (xxiii) the costs and expenses and other inherent uncertainty attendant to a chapter 11 case.

More detailed information about SIGA and risk factors that may affect the realization of forward-looking statements, including the forward-looking statements in this presentation, is set forth in SIGA’s filings with the Securities and Exchange Commission, including this Quarterly Report on Form 10-Q and SIGA’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014, and in other documents that SIGA has filed with the SEC. SIGA urges investors and security holders to read those documents free of charge at the SEC’s Web site at http://www.sec.gov. Forward-looking statements are current only as of the date on which such statements were made, and except for our ongoing obligations under the United States of America federal securities laws, we undertake no obligation to update publicly any forward-looking statements whether as a result of new information, future events, or otherwise.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Our investment portfolio may include cash, cash equivalents and short-term investments. Our main investment objectives are the preservation of investment capital and the maximization of after-tax returns on our investment portfolio. We believe that our investment policy is conservative, both in the duration of our investments and the credit quality of the investments we hold. We do not utilize derivative financial instruments, derivative commodity instruments or other market risk sensitive instruments, positions or transactions to manage exposure to interest rate changes. Accordingly, we believe that, while the securities we hold are subject to changes in the financial standing of the issuer of such securities and our interest income is sensitive to changes in the general level of U.S. interest rates, we are not subject to any material risks arising from changes in interest rates, foreign currency exchange rates, commodity prices, equity prices or other market changes that affect market risk sensitive instruments.

Table of Contents

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures as of September 30, 2015. The term “disclosure controls and procedures” is defined in Rules 13a-15(e) and 15d-15(e) under the Securities and Exchange Act of 1934. Management recognizes that any disclosure controls and procedures no matter how well designed and operated, can only provide reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

Based on that evaluation, our Chief Executive Office and Chief Financial Officer have concluded that our disclosure controls and procedures were effective as of September 30, 2015 at a reasonable level of assurance.

Changes in Internal Control over Financial Reporting

There have been no changes in our internal control over financial reporting during the quarter ended September 30, 2015 that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Table of Contents

PART II - OTHER INFORMATION

Item 1. Legal Proceedings

In December 2006, PharmAthene filed an action against the Company in the Delaware Court of Chancery captioned PharmAthene, Inc. v. SIGA Technologies, Inc., C.A. No. 2627-VCP. In its amended complaint, PharmAthene asked the Court to order the Company to enter into a license agreement with PharmAthene with respect to ST-246, also known as Tecovirimat, to declare that the Company was obliged to execute such a license agreement, and to award damages resulting from the Company's alleged breach of that obligation. PharmAthene also alleged that the Company breached an obligation to negotiate such a license agreement in good faith, and sought damages for promissory estoppel and unjust enrichment based on information, capital, and assistance that PharmAthene allegedly provided to the Company during the negotiation process. The Court tried the case in January 2011.

In June 2012, the Company appealed to the Supreme Court of the State of Delaware the final order and judgment and certain earlier rulings of the Court of Chancery. Shortly thereafter, PharmAthene filed its cross-appeal. The Company obtained a stay of enforcement of the fee and expense portion of the judgment by filing a surety bond for the amount of the judgment plus post-judgment interest. The Company posted $1.3 million of cash as approximately 50% collateral for a $2.7 million surety bond. The $1.3 million of cash collateral is recorded in other assets as of September 30, 2015.

On January 10, 2013, the parties briefed the issues, and argued before the Delaware Supreme Court, en banc.

Table of Contents

the remand proceedings, (iii) sixty percent of expert witness fees it incurred in the pretrial and trial phases, and (iv) and one-tenth of the expert witness fees it incurred in the remand proceedings.

On September 16, 2014, as a consequence of the Company's chapter 11 filing, the legal proceedings with PharmAthene were stayed (see Note 1 to the financial statements). On October 8, 2014, the Bankruptcy Court approved a Stipulation between the Company and PharmAthene partially lifting the stay to permit the litigation before the Delaware Chancery Court to proceed, including all appeals. The Stipulation, however, provides that the stay shall remain in effect with respect to the enforcement of any judgment that may be entered.

On January 15, 2015, the Delaware Court of Chancery entered its Final Order and Judgment, awarding to PharmAthene $113,116,985 in contract expectation damages, plus pre-judgment interest up to January 15, 2015, and certain permitted legal fees, costs, and expenses, for a judgment of $194,649,042. Pursuant to the Final Order and Judgment, the Company also is liable to PharmAthene for post-judgment interest, in the amount of $30,663.89, per diem, which per diem amount shall periodically be adjusted.

On January 16, 2015, the Company appealed from certain portions of the Delaware Court of Chancery's rulings on remand, including but not limited to the Final Order and Judgment, to the Delaware Supreme Court. On January 29, 2015, PharmAthene cross-appealed from certain portions of the Delaware Court of Chancery’s rulings on remand, including but not limited to the Final Order and Judgment, to the Delaware Supreme Court. The Company filed its opening brief on appeal on March 2, 2015; PharmAthene filed its answering brief on appeal and opening brief on cross-appeal on April 1, 2015; the Company filed its reply brief on appeal and answering brief on cross-appeal on May 1, 2015; and PharmAthene filed reply briefing on cross-appeal on May 11, 2015. On October 7, 2015, the Delaware Supreme Court heard oral argument, en banc, and, as of the date hereof, has not issued its decision. There is no assurance that either appeal will be successful.

See Notes 1 and 2 to the financial statements for information relating to the Company's ongoing chapter 11 proceedings.

Item 1A. Risk Factors

Our results of operations and financial conditions are subject to numerous risks and uncertainties described in our 2014 Annual Report on Form 10-K for the fiscal year-ended December 31, 2014.

Item 2. Unregistered Sale of Equity Securities and Use of Proceeds

None.

Item 3. Defaults upon Senior Securities

None.

Item 4. Mine Safety Disclosures

No disclosure is required pursuant to this item.

Item 5. Other Information

None.

Item 6. Exhibits



Exhibit No.		Description
31.1		Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2		Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1		Certification of Chief Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2		Certification of Chief Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS		XBRL Instance Document
101.SCH		XBRL Taxonomy Extension Schema
101.CAL		XBRL Taxonomy Extension Calculation Linkbase
101.DEF		XBRL Taxonomy Extension Definition Linkbase
101.LAB		XBRL Taxonomy Extension Label Linkbase
101.PRE		XBRL Taxonomy Extension Presentation Linkbase

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.



		SIGA TECHNOLOGIES, INC.
		(Registrant)

Date:	October 27, 2015	By:	/s/ Daniel J. Luckshire
			Daniel J. Luckshire
			Executive Vice President and
			Chief Financial Officer
			(Principal Financial Officer and
			Principal Accounting Officer)

Related Party Transactions (Details) - USD ($)	3 Months Ended		9 Months Ended
Related Party Transactions (Details) - USD ($)	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Affiliated Entity [Member]
Related Party Transaction [Line Items]
Free rent period			5 months
Monthly rental payments first five years			$ 60,000
Initial rent period			5 years
Monthly rental payments after five years			$ 63,000
Rent period after first five years			2 years
Related party expense			$ 25,750
Member of Board of Directors
Related Party Transaction [Line Items]
Legal fees	$ 100,000	$ 100,000	500,000	$ 500,000
Accounts payable to related party	$ 128,000		$ 128,000

Interim Condensed Consolidated Financial Statements Organization, Consolidation and Presentation of Financial Statements (Details) $ in Millions	Jan. 15, 2015 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Final order and judgment including interest	$ 195

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Sep. 30, 2015	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Current income tax expense (benefit)	$ 0.1	$ 0.2
Income (loss) from continuing operations before income taxes	$ 5.6	$ 19.1

Procurement Contract and Research Agreements	9 Months Ended
Procurement Contract and Research Agreements	Sep. 30, 2015
Research and Development [Abstract]
Procurement Contract and Research Agreements	Procurement Contract and Research Agreements Procurement Contract On May 13, 2011, the Company signed a contract with BARDA (the “BARDA Contract”) pursuant to which the Company agreed to deliver two million courses of Tecovirimat to the U.S. Strategic National Stockpile (“Strategic Stockpile”). The BARDA Contract is worth approximately $463 million, including $409.8 million for manufacture and delivery of 1.7 million courses of Tecovirimat and $54 million of potential reimbursements related to development and supportive activities (the “Base Contract”). In addition to the Base Contract, the BARDA Contract contains various options exercisable at BARDA’s discretion that would fund development and supportive activities such as work on pediatric and geriatric formulations of the drug as well as use of Tecovirimat for smallpox prophylaxis; would reward the Company $50 million for FDA approval for extension to 84-month expiry for Tecovirimat (from 38 month expiry as required in the Base Contract); and would fund production-related activities such as warm-base manufacturing. As of September 30, 2015, BARDA has not exercised any options. The BARDA Contract expires in September 2020. Under the Base Contract, BARDA has agreed to buy from the Company 1.7 million courses of Tecovirimat. Additionally, the Company expects to contribute to BARDA 300,000 courses at no additional cost to BARDA. As of September 30, 2015, the Company has received $249.2 million under the Base Contract related to the manufacture and physical delivery of courses of Tecovirimat. Included in this amount are: a $41 million advance payment in 2011 for the completion of certain planning and preparatory activities related to the Base Contract; a $12.3 million milestone payment in 2012 for the completion of the product labeling strategy for Tecovirimat; an $8.2 million milestone payment in 2013 for the completion of the commercial validation campaign for Tecovirimat; and $187.7 million of payments for physical deliveries of 1.4 million courses of Tecovirimat to the Strategic Stockpile beginning in 2013 (an additional 259,200 courses were delivered at no cost to BARDA). Product deliveries of 1.3 million of those courses in 2013 and 2014 were at a provisional dosage of 600 mg administered once daily. Product deliveries of 383,754 courses in 2015 were at a provisional dosage of 600 mg administered twice per day (1,200 mg per day). On December 24, 2014, the Company announced that based on discussions with representatives of the FDA and BARDA, product deliveries of Tecovirimat subsequent to December 31, 2014 are expected to be at a provisional dosage of 600 mg administered twice per day (1,200 mg per day). This is a change from the provisional dosage that was in effect when product deliveries were made in 2013 and 2014 (600 mg per day). In 2013 and 2014, the provisional dosage of courses delivered to the Strategic Stockpile was 600 mg administered once per day. The change in the provisional dosage is based on FDA guidance received by the Company in 2014, subsequent to the delivery of 1.3 million courses of Tecovirimat. Based on the current provisional dosage of 600 mg administered twice per day (1,200 mg per day), the Company currently expects to supplement previously delivered courses of Tecovirimat, at no additional cost to BARDA, with additional dosages so that all of the courses previously delivered to BARDA will be at the new provisional dosage. The Company and BARDA have agreed to an amendment (the “BARDA Amendment”) of the BARDA Contract to reflect the foregoing, which modification was approved by the Bankruptcy Court in April 2015. The Company expects to incur significant incremental costs with the production of additional dosage. The provisional dosage for Tecovirimat may be subject to additional changes based on possible additional FDA guidance. The BARDA Contract is a multiple deliverable arrangement comprising delivery of courses and covered research and development activities. The BARDA Contract provides certain product replacement rights with respect to delivered courses. For this reason, recognition of revenue that might otherwise occur upon delivery of courses is expected to be deferred until the Company’s obligations related to potential replacement of delivered courses are satisfied. The Company assessed the selling price for each of the aforementioned deliverables, i.e., delivered courses and research and development activities. The selling price of delivered courses was determined by reference to other companies’ sales of drug products such as antiviral therapeutics, orphan drugs and drugs with potential life-saving impact similar to Tecovirimat, including products delivered to the Strategic Stockpile. The selling price of certain reimbursed research and development services was determined by reference to existing and past research and development grants and contracts between the Company and various government agencies. The Company has recognized revenue for reimbursement of certain BARDA Contract research and development services. Cash inflows related to delivery of courses will continue to be recorded as deferred revenue. In addition, direct costs incurred by the Company to fulfill the delivery of courses including the supplementing of courses previously delivered under the BARDA Contract are being deferred and will be recognized as expenses over the same period that the related deferred revenue is recognized as revenue. As of September 30, 2015 and December 31, 2014, deferred direct costs under the BARDA Contract of approximately $54.3 million and $32.9 million, respectively, are included in deferred costs on the consolidated balance sheets. As of September 30, 2015, the Company recorded $255.1 million of deferred revenue. Deferred revenue has been recorded for the delivery of courses of Tecovirimat to the Strategic Stockpile and certain research and development services provided as part of the BARDA Contract. For the three and nine months ended September 30, 2015, revenue from reimbursed research and development was $0.8 million and $2.3 million, respectively. Research Agreements The Company obtains funding from the contracts and grants it obtains from various agencies of the U.S. Government to support its research and development activities. Currently, the Company has one contract and one grant with varying expiration dates through February 2018 that provide for potential future aggregate research and development funding for specific projects of approximately $7.5 million. The funded amount includes, among other things, options that may or may not be exercised at the U.S. Government’s discretion. Moreover, the contract and grant contain customary terms and conditions including the U.S. Government’s right to terminate or restructure a grant for convenience at any time. In connection with the Optimization Program implemented in fourth quarter of 2013, in August 2014 the Company entered into an asset purchase agreement to sell and transfer its pre-clinical Arenavirus assets and research and development grant relating to Lassa fever to Kineta Four, LLC (the “Purchaser”), an unrelated party. In exchange for the transfer of certain assets and intellectual property rights, the Company received profit interest units (“Units”) in Kineta Four, LLC, and the Company is eligible for approximately $5.1 million of later-stage milestone payments and royalties of up to 4% on sales of drugs that use the transferred intellectual property rights. The Units, which have no voting rights, could provide the Company with a participation of approximately 5 - 10% of any cash distribution, if any, by Kineta Four, LLC, depending on future fundraising by Kineta Four, LLC. The assets transferred as part of the asset purchase agreement are the sole operating assets of Kineta Four, LLC. The asset purchase agreement had no impact on the Company's results of operations as the assets and intellectual property transferred to the Purchaser had no book value.

Procurement Contract and Research Agreements (Details)		1 Months Ended	3 Months Ended			6 Months Ended		9 Months Ended
Procurement Contract and Research Agreements (Details)	Jun. 24, 2011 USD ($) course	May. 31, 2011 USD ($) course	Sep. 30, 2015 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Jun. 30, 2015 course	Jun. 30, 2013 USD ($)	Sep. 30, 2015 USD ($) course contract grant	Dec. 31, 2014 USD ($)
Procurement Contract [Line Items]
Government contract, number of free courses delivered and accepted \| course								259,200
Courses delivered provisional dosage, twice daily \| course								383,754
Deferred costs			$ 54,308,995					$ 54,308,995	$ 32,860,874
Research and development revenue long-term contract			800,000					$ 2,300,000
Number of active contracts \| contract								1
Number of active grants \| grant								1
Potential future research and development funding			7,500,000					$ 7,500,000
Potential milestone payments								$ 5,000,000
Potential royalties								4.00%
BARDA Contract
Procurement Contract [Line Items]
Number of courses to be delivered \| course		2,000,000
Value of contract		$ 463,000,000
Contract Value of Manufacturing and Delivery Activities		409,800,000
Contract value of development and support activities		$ 54,000,000
Contract value of various options	$ 50,000,000
Number of courses under modified contract \| course	1,700,000
Number of courses contributed at no additional cost to the government \| course	300,000
Proceeds from manufacture and physical delivery of courses, government contract			249,200,000					$ 249,200,000
Proceeds from advance payments under the BARDA contract					$ 41,000,000
Milestone payment				$ 12,300,000			$ 8,200,000
Proceeds From Physical Delivery Of Courses, Government Contracts								$ 187,700,000
Courses delivered \| course								1,400,000
Number of courses delivered and accepted at provisional dosage, once daily \| course						1,300,000		1,300,000
Courses delivered provisional dosage, twice daily \| course								383,754
Deferred costs			$ 54,300,000					$ 54,300,000	$ 32,900,000
Deferred revenue								255094794
Minimum [Member]
Procurement Contract [Line Items]
Potential percentage cash distributions								5.00%
Maximum [Member]
Procurement Contract [Line Items]
Potential percentage cash distributions								10.00%


1.	I have reviewed this quarterly report on Form 10-Q of SIGA Technologies, Inc.;


2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;


3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;


4.	The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:


(a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;


(b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;


(c)	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and


(d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and


(a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and


(b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.


(1)	The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and


(2)	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Stockholders' Equity (Details) - USD ($)				3 Months Ended			9 Months Ended
Stockholders' Equity (Details) - USD ($)	Jul. 26, 2015	Apr. 30, 2013	Jun. 18, 2010	Sep. 30, 2015	Sep. 30, 2014	Jun. 19, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014	Jun. 19, 2008
Class of Warrant or Right [Line Items]
Common stock, shares issued				54,114,296			54,114,296		53,504,296
Fair value adjustment of warrants	$ (184,027)			$ 0	$ (11,532)	$ (129,398)	$ 0	$ (313,425)
Expense of warrants held as assets							$ 45,456	$ 102,273
Affiliated Entity [Member]
Class of Warrant or Right [Line Items]
Commitment to Invest										$ 8,000,000
Warrants to purchase percentage of acquired shares										40.00%
Warrants to purchase common stock		250,000	718,954
Proceeds from issuance of warrants and options			$ 5,500,000
Exercise price of warrants to purchase common stock		$ 3.29	$ 3.519
Common stock, shares issued			1,797,386
Service agreement term		3 years
Warrants contractrual term		2 years	4 years
Extended Expiration Period [Member] \| Affiliated Entity [Member]
Class of Warrant or Right [Line Items]
Warrants to purchase common stock										238,000
Exercise price of warrants to purchase common stock										$ 3.06

Per Share Data (Details) - shares	3 Months Ended		9 Months Ended
Per Share Data (Details) - shares	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average	2,035,467	2,165,307	2,066,848	2,192,397
Stock Appreciation Rights (SARs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average	365,689	383,890	369,222	393,551
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average	853,840	1,155,638	1,039,907	1,221,653
Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average	0	453,183	109,890	949,120

Fair Value Measurements (Details) $ in Millions	Dec. 31, 2014 USD ($)
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Term loan	$ 2.0

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 129,289,275	$ 99,713,929
Restricted cash	0	4,000,000
Accounts receivable	979,232	491,632
Inventory	1,091,948	19,044,477
Prepaid expense and other assets, current	888,481	898,705
Deferred tax assets	7,261,764	5,655,928
Total current assets	139,510,700	129,804,671
Property, plant and equipment, net	457,457	831,936
Deferred costs	54,308,995	32,860,874
Goodwill	898,334	898,334
Other assets	1,989,520	1,989,520
Total assets	197,165,006	166,385,335
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	3,174,820	3,384,310
Accrued expenses and other current liabilities	3,063,410	2,085,995
Long-term debt, current maturities	0	1,989,948
Total current liabilities	6,238,230	7,460,253
Deferred revenue	255,094,794	81,799
Deferred income tax liability	7,519,847	5,900,468
Other liabilities	351,890	405,325
Liabilities subject to compromise	192,627,949	399,039,967
Total liabilities	461,832,710	412,887,812
Stockholders' equity
Common stock ($.0001 par value, 100,000,000 shares authorized, 54,114,296 and 53,504,296 issued and outstanding at September 30, 2015, and December 31, 2014, respectively	5,411	5,351
Additional paid-in capital	176,675,169	175,483,180
Accumulated deficit	(441,348,284)	(421,991,008)
Total stockholders' equity	(264,667,704)	(246,502,477)
Total liabilities and stockholders' equity	$ 197,165,006	$ 166,385,335

Interim Condensed Consolidated Financial Statements	9 Months Ended
Interim Condensed Consolidated Financial Statements	Sep. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure	Condensed Consolidated Financial Statements The financial statements are presented in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) for interim financial information and the rules and regulations of the Securities and Exchange Commission (the “SEC”) for quarterly reports on Form 10-Q and should be read in conjunction with the Company’s audited financial statements and notes thereto for the year ended December 31, 2014, included in the 2014 Annual Report on Form 10-K. All terms used but not defined elsewhere herein have the meaning ascribed to them in the Company’s 2014 Annual Report on Form 10-K filed on March 6, 2015. In the opinion of management, all adjustments (consisting of normal and recurring adjustments) considered necessary for a fair statement of the results of the interim periods presented have been included. The 2014 year-end condensed balance sheet data was derived from the audited financial statements but does not include all disclosures required by U.S. GAAP. The results of operations for the three and nine months ended September 30, 2015 are not necessarily indicative of the results expected for the full year. Certain prior period amounts have been reclassified to the current period presentation related to employee recruiting expenses from research and development to selling, general and administrative. Chapter 11 Filing On September 16, 2014 (the “Petition Date”), SIGA Technologies, Inc. (the "Company") filed a voluntary petition for relief under chapter 11 of Title 11 of the United States Code (the “Bankruptcy Code”) in the United States Bankruptcy Court for the Southern District of New York (the “Bankruptcy Court”) chapter 11 Case Number 14-12623 (SHL). The Company is continuing to operate its business as a “debtor-in-possession” in accordance with the applicable provisions of the Bankruptcy Code. The Company commenced the chapter 11 case to preserve and to ensure its ability to satisfy its commitments under the BARDA Contract (as defined in Note 4 to the financial statements) and to preserve its operations, which likely would have been jeopardized by the enforcement of a judgment stemming from the litigation with PharmAthene, Inc. (“PharmAthene”) (see Note 14 to the financial statements). While operating as a debtor-in-possession under chapter 11, the Company is pursuing what it believes is a meritorious appeal of the Delaware Court of Chancery Final Order and Judgment (as defined below), without the necessity of posting a bond. PharmAthene Litigation On August 8, 2014, the Delaware Court of Chancery issued its Remand Opinion and related order in the litigation initiated against the Company in 2006 by PharmAthene. In the Remand Opinion, the Court of Chancery determined, among other things, that PharmAthene is entitled to a lump sum damages award for its lost profits related to Tecovirimat, with interest and fees, based on United States government purchases of the Company's smallpox drug allegedly anticipated as of December 2006. On January 15, 2015, the Delaware Court of Chancery entered its Final Order and Judgment awarding PharmAthene approximately $195 million, including pre-judgment interest up to January 15, 2015 (the “Outstanding Judgment”). The Company's pending chapter 11 case prevents PharmAthene from taking any enforcement action at this time and also permits the Company's appeal of the Outstanding Judgment without the need to post a bond. On January 16, 2015, the Company filed a notice of appeal of the Outstanding Judgment with the Delaware Supreme Court and, on January 30, 2015, PharmAthene filed a notice of cross appeal. Briefing on the Company's appeal and PharmAthene's cross-appeal was completed on May 11, 2015. On October 7, 2015, the Delaware Supreme Court heard oral argument, en banc, and, as of the date hereof, has not issued its decision. Going Concern The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern and contemplate the realization of assets and the satisfaction of liabilities in the normal course of business. The Company’s ability to continue as a going concern is expected to be impacted by the outcome of the Company’s appeal of the post-remand judgment by the Delaware Court of Chancery (as defined in Note 14 to the financial statements), as well as the resolution of the Company's chapter 11 case. The Delaware Court of Chancery, acting on remand from the Delaware Supreme Court, entered its Final Judgment and Order on January 15, 2015, awarding PharmAthene approximately $195 million, including prejudgment interest up to January 15, 2015. In response to the potential impact of the Outstanding Judgment, the Company filed a voluntary petition for relief under chapter 11 of the Bankruptcy Code and is operating its business as a “debtor-in-possession” in accordance with the applicable provisions of the Bankruptcy Code. These factors raise substantial doubt about the Company’s ability to continue as a going concern. As a result of the chapter 11 filing and the Outstanding Judgment, the realization of assets and the satisfaction of liabilities are subject to uncertainties. Any reorganization plan in the Company's chapter 11 case could materially change the amounts and classifications of assets and liabilities reported in the consolidated financial statements. The accompanying financial statements do not include any adjustments related to the recoverability and classification of assets or the amounts and classification of liabilities or any other adjustments that might be necessary should the Company be unable to continue as a going concern.

Accrued Expenses and Other Current Liabilities (Details) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Payables and Accruals [Abstract]
Bonus	$ 802,250	$ 17,500
Professional fees	579,970	534,775
Vacation	252,055	271,000
Other	1,429,135	1,262,720
Total	$ 3,063,410	$ 2,085,995

Property, Plant and Equipment (Details) - USD ($)	3 Months Ended		9 Months Ended
Property, Plant and Equipment (Details) - USD ($)	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Leasehold improvements, gross	$ 2,538,844		$ 2,538,844		$ 3,170,598
Computer equipment, gross	732,949		732,949		669,782
Furniture and fixtures, gross	452,696		452,696		488,807
Property, plant and equipment, gross	3,724,489		3,724,489		4,329,187
Accumulated depreciation, depletion and amortization, property, plant, and equipment	(3,267,032)		(3,267,032)		(3,497,251)
Property, plant and equipment, net	457,457		457,457		$ 831,936
Write-off of leasehold improvements			238,501	$ 0
Depreciation and other amortization	$ 52,290	$ 87,233	$ 199,144	$ 268,037

Administration of Chapter 11 Case (Notes)	9 Months Ended
Administration of Chapter 11 Case (Notes)	Sep. 30, 2015
Reorganizations [Abstract]
Administration of Chapter 11 Case [Text Block]	Administration of Chapter 11 Case On September 17, 2014, the Company received Bankruptcy Court approval of certain “first-day” motions, which preserved the Company's ability to continue operations without interruption in chapter 11. As part of the “first-day” motions, the Company received approval to pay or otherwise honor certain pre-petition obligations generally designed to support the Company's operations. Additionally, the Bankruptcy Court confirmed the Company's authority to pay for goods and services received post-petition in the ordinary course of business. In October 2014, the U.S. Trustee for the Southern District of New York (the “U.S. Trustee”) appointed an official committee of unsecured creditors (the “UCC”). The UCC has a right to be heard on any issue in the Company’s chapter 11 case. There can be no assurance that the UCC will support the Company’s positions on matters to be presented to the Bankruptcy Court in the future or with respect to any plan of reorganization, when proposed. As part of the chapter 11 case, the Company has retained, pursuant to Bankruptcy Court authorization, legal and other professionals to advise the Company in connection with the administration of its chapter 11 case and its litigation with PharmAthene, and certain other professionals to provide services and advice in the ordinary course of business. From time to time, the Company may seek Bankruptcy Court approval to retain additional professionals. Pursuant to an order of the Bankruptcy Court, dated October 28, 2014, the Company was authorized to pay pre-petition obligations to certain service providers that are fully reimbursable by the U.S. Biomedical Advanced Research and Development Authority (the “BARDA”) pursuant to the BARDA Contract (as defined in Note 4). Pursuant to an order of the Bankruptcy Court, dated January 14, 2015, the Company was authorized to satisfy a fully-secured term loan provided by General Electric Capital Corporation in the approximate amount of $1.8 million. Such amount, and related fees, was paid by the Company on January 16, 2015 and all liens securing the credit facility were released. Pursuant to orders entered by the Bankruptcy Court in April 2015, the Company was authorized to consummate the following transactions: assumption of the BARDA Contract, as amended by the BARDA Amendment (as defined in Note 4 to the financial statements); assumption of the Company’s commercial manufacturing agreement (the “Commercial Manufacturing Agreement”) with Albemarle Corporation (“Albemarle”), as amended by a 2015 amendment (the “2015 Amendment”); and assumption of the Company’s lease with Research Way Investments, as amended by the Tenth Addendum to Commercial Lease, for the Company’s research and development facility located at 4575 S.W. Research Way, Corvallis, Oregon. The 2015 Amendment to the Commercial Manufacturing Agreement with Albemarle provides the Company with improved pricing on future purchases of active pharmaceutical ingredient (“API”) for Tecovirimat. As part of the assumption of the Commercial Manufacturing Agreement, as amended, on April 30, 2015, the Company paid Albemarle’s prepetition claim under the Commercial Manufacturing Agreement of approximately $2.7 million. The Tenth Addendum to the Commercial Lease with Research Way Investments reduced the Company's rent costs for the research and development facility by approximately $35,000 per month, starting May 1, 2015. Additionally, as part of the Tenth Addendum, Research Way Investments withdrew its proof of claim for $971,451 filed in the Bankruptcy Court. Plan of Reorganization The Company has not yet filed a plan of reorganization with the Bankruptcy Court. The Company currently has the exclusive right to file a plan of reorganization through and including November 5, 2015, and to solicit votes on such a plan if filed by such date through and including December 28, 2015, subject to the ability of parties in interest to file motions seeking to terminate the Company's exclusive periods, as well as the Company's right to seek extensions of such periods. The Company has a right to seek extensions of such exclusive periods, subject to the statutory limit of 18 months from the Petition Date in the case of filing a plan and 20 months from the Petition Date in the case of soliciting and obtaining acceptances of such a plan. The implementation of a plan of reorganization is subject to confirmation of the plan by the Bankruptcy Court in accordance with the provisions of the Bankruptcy Code, and the occurrence of the effective date under the plan. At this time, there is no certainty as to when or if a plan will be filed, the provisions of a plan (including provisions with respect to the treatment of prepetition claims and equity interests), or whether a plan will be confirmed and become effective. Pre-Petition Claims As a result of the chapter 11 filing, the payment of pre-petition liabilities is generally subject to compromise pursuant to a plan of reorganization. Generally, under the Bankruptcy Code, actions to enforce or otherwise effect payment of pre-bankruptcy filing liabilities are stayed. Although payment of pre-petition claims generally is not permitted, the Bankruptcy Court granted the Company authority to pay certain pre-petition claims in designated categories and subject to certain terms and conditions. Among other things, the Bankruptcy Court has authorized the Company to pay certain pre-petition claims relating to employees, critical vendors, a fully-secured pre-petition term loan, and services for which the Company receives reimbursement from the government. On October 30, 2014, the Company filed its schedules of assets and liabilities and statement of financial affairs (the “Schedules”) with the Bankruptcy Court. The Bankruptcy Court entered an order setting March 30, 2015 as the deadline for filing proofs of claim (the “Bar Date”). The Bar Date is the date by which claims against the Company relating to the period prior to the commencement of the Company's chapter 11 case must be filed if such claims are not listed in liquidated, non-contingent and undisputed amounts in the Schedules, or if the claimant disagrees with the amount, characterization or classification of its claim as reflected in the Schedules. Claims that are subject to the Bar Date and which are not filed on or prior to the Bar Date may be barred from participating in any distribution that may be made under a plan of reorganization in the Company's chapter 11 case. As of October 21, 2015 approximately 143 proofs of claim were outstanding (including claims that were previously identified on the Schedules), a portion of which assert, in part or in whole, unliquidated claims. In the aggregate, total liquidated proofs of claim amount to $199,265,756. This amount includes a claim asserted by PharmAthene in the amount of $194,649,042 in connection with the PharmAthene Litigation. Separately, a contingent and unliquidated claim was filed by BARDA prior to the Bar Date in the amount of $109,339,609 in connection with amounts BARDA identified as subject to repayment in the event that the Company fails to perform under the terms of the BARDA Contract. As a result of the assumption of the BARDA Contract, as described above, BARDA withdrew the claim on August 4, 2015. Certain proof of claims that have been filed relate to amounts which have been paid by the Company as of September 30, 2015. The Company will ask the Bankruptcy Court to disallow claims that the Company believes are duplicative, have been later amended or superseded, are without merit, are overstated, have already been paid, or should be disallowed for other reasons. In addition, as a result of this process, the Company may identify additional liabilities that will need to be recorded or reclassified to Liabilities Subject to Compromise. The resolution of such claims could result in material adjustments to the Company’s financial statements. The determination of how liabilities will ultimately be treated cannot be made until the Bankruptcy Court confirms a plan of reorganization and the plan becomes effective. Accordingly, the ultimate amount or treatment of such liabilities is not determinable at this time. Financial Reporting in Reorganization The Company applied Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 852, Reorganizations effective on September 16, 2014, which is applicable to companies under bankruptcy protection, and requires amendments to the presentation of key financial statement line items. It requires that the financial statements for periods subsequent to the chapter 11 filing distinguish transactions and events that are directly associated with the reorganization from the ongoing operations of the business. Revenues, expenses, realized gains and losses, and provisions for losses that can be directly associated with the reorganization and restructuring of the business must be reported separately as reorganization items in the consolidated statements of operations. The balance sheet must distinguish pre-petition Liabilities Subject to Compromise from both those pre-petition liabilities that are not subject to compromise and from post-petition liabilities. Liabilities that may be subject to a plan of reorganization must be reported at the amounts expected to be allowed in the Company’s chapter 11 case, even if they may be settled for lesser amounts as a result of the plan of reorganization or negotiations with creditors. In addition, cash used by reorganization items are disclosed separately in the consolidated statements of cash flow. Other Matters Related to the Chapter 11 Case By motion filed with the Bankruptcy Court on April 8, 2015 (the “UCC 2004 Motion”), the Official Committee of Unsecured Creditors appointed in the Company's chapter 11 case (the “UCC”) sought authority to take discovery under Federal Rule of Bankruptcy Procedure 2004 (“Rule 2004”) with respect to certain discrete matters. Rule 2004 permits a creditors’ committee appointed in a chapter 11 case or other party in interest, subject to Bankruptcy Court approval, to conduct broad discovery relating to the acts, conduct, property and liabilities of a debtor or with respect to any matter that may affect the administration of the debtor’s bankruptcy case. The UCC 2004 Motion was filed for the purpose of determining whether the Company's estate has claims against certain officers and directors in connection with the matters sought to be investigated pursuant to the UCC 2004 Motion. Pursuant to an order of the Bankruptcy Court, dated June 16, 2015 (the “2004 Order”), the UCC 2004 Motion was granted, in part, with regard to certain discovery requests specifically listed in the UCC 2004 Motion. By a motion filed with the Bankruptcy Court on September 1, 2015, the UCC sought further discovery under Rule 2004 from PharmAthene and certain third parties with respect to one of the matters set forth in the UCC 2004 motion. By the order of the Bankruptcy Court dated October 2, 2015, the terms of which were agreed to by the Company and the UCC, the UCC was authorized to obtain certain additional discovery from PharmAthene related to the PharmAthene litigation. As of the date hereof, the Company, pursuant to the 2004 Order, has provided to the attorneys for the UCC the discovery already produced by the Company to PharmAthene in the PharmAthene litigation. No document requests or deposition subpoenas have been served by the UCC on the Company. The Company does not expect that the discovery will lead to any viable causes of action with respect to the matters the UCC has been authorized to investigate under the 2004 Order. NASDAQ/OTC Markets On September 16, 2014, the Company received a letter from the NASDAQ Stock Market LLC asserting that, based on the Company’s chapter 11 filing, the Company no longer met the continuing listing requirements necessary to maintain its listing on the NASDAQ Stock Market and would be promptly delisted. On March 18, 2015, after the expiration of an extension of time granted pursuant to a Company appeal, the Company received a letter from the NASDAQ hearings panel stating that the Company's securities would be delisted from the NASDAQ Stock Market. On March 20, 2015, the Company's common shares were suspended from trading on the NASDAQ Global Market at the opening of business and the Company's shares began trading on the OTC Markets under the "SIGAQ" symbol.

CONSOLIDATED BALANCE SHEETS (Parentheticals) - $ / shares	Sep. 30, 2015	Dec. 31, 2014
Balance Sheet Parenthetical [Abstract]
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	54,114,296	53,504,296
Common stock, shares outstanding	54,114,296	53,504,296

Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Income Tax	Income Taxes Accounting Standards Codification (“ASC”) 740, Income Taxes requires that a valuation allowance be established when it is "more likely than not" that all or a portion of deferred tax assets will not be realized. A review of all available positive and negative evidence needs to be considered, including company's performance, the market environment in which the company operates, the utilization of past tax credits, length of carryback and carryforward periods, existing contracts, and unsettled circumstances that, if unfavorably resolved, would adversely affect future operations and profit levels in the future years. Based on the available evidence, the Company continues to conclude that its deferred tax assets are not realizable on a more-likely-than-not basis. For the three and nine months ended September 30, 2015, the Company recorded an income tax provision of $0.1 million and $0.2 million, respectively, on a pre-tax loss of $5.6 million and $19.1 million, respectively. The effective tax rate differs from the statutory rate as no income tax benefit was recorded for current year operating losses due to the Company’s assessment regarding tax realizability of its deferred tax asset.

Document and Entity Information Document - shares	9 Months Ended
Document and Entity Information Document - shares	Sep. 30, 2015	Oct. 26, 2015
Document Information [Line Items]
Entity Registrant Name	SIGA TECHNOLOGIES INC
Entity Central Index Key	0001010086
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Trading Symbol	SIGAQ
Document Type	10-Q
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		54,114,296

Recently Issued Accounting Standards (Notes)	9 Months Ended
Recently Issued Accounting Standards (Notes)	Sep. 30, 2015
Recent Accounting Pronouncements [Abstract]
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	Recent Accounting Pronouncements In July 2015, the FASB issued Accounting Standards Update (“ASU”) No. 2015-11, Simplifying the Measurement of Inventory, which changes the measurement principle for inventory from the lower of cost or market to lower of cost and net realizable value. Inventory measured using last-in, first-out (LIFO) and the retail inventory method (RIM) are not impacted by the new guidance. The ASU only addresses the measurement of the inventory if its value declines or is impaired. Prior to the issuance of the standard, inventory was measured at the lower of cost or market (where market was defined as replacement cost, with a ceiling of net realizable value and floor of net realizable value less a normal profit margin). This necessitated obtaining three data points to determine market value. Replacing the concept of market with the single measurement of net realizable value is intended to create efficiencies. The ASU defines net realizable value as the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. This ASU is effective prospectively for annual periods beginning after December 15, 2016. The Company is currently evaluating the impact of adoption of the ASU and believes the adoption of the ASU will not have an impact on its consolidated financial statements. In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements - Going Concern (Subtopic 205-40) Disclosure of Uncertainties about an Entity's Ability to Continue as a Going Concern. This ASU requires management to assess whether there is substantial doubt about the entity’s ability to continue as a going concern and, if so, disclose that fact. Management will also be required to evaluate and disclose whether its plans alleviate that doubt. This ASU states that, when making this assessment, management should consider relevant conditions or events that are known or reasonably knowable on the date the financial statements are issued or available to be issued. This ASU is effective for annual periods ending after December 15, 2017 and interim periods thereafter, and early adoption is permitted. The Company is currently evaluating the impact of adoption on its consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606). ASU No. 2014-09 supersedes the revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific revenue recognition guidance throughout the Industry Topics of the Accounting Standards Codification. Additionally, this update supersedes some cost guidance included in Subtopic 605-35, Revenue Recognition-Construction-Type and Production-Type Contracts. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. It is effective for the first interim period within annual reporting periods beginning after December 15, 2017, and early adoption is permitted for the first interim period within annual reporting period beginning after December 15, 2016. The Company is currently evaluating the impact of adoption on its consolidated financial statements. In April 2014, FASB issued ASU No. 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of Entity, which changes the criteria for reporting discontinued operations while enhancing disclosure requirements. This ASU addresses sources of confusion and inconsistent application related to financial reporting of discontinued operations guidance in U.S. GAAP. Under this guidance, a discontinued operation is defined as a disposal of a component or group of components that is disposed of or is classified as held for sale and represents a strategic shift that has a major effect on an entity’s operations and financial results. This ASU is effective prospectively for fiscal years and interim periods within those years beginning after December 15, 2014. The Company's adoption of this guidance on January 1, 2105 did not have an effect on our financial statements.

Legal Proceedings	9 Months Ended
Legal Proceedings	Sep. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies In December 2006, PharmAthene, Inc. (“PharmAthene”) filed an action against the Company in the Delaware Court of Chancery (the “Court” or “Court of Chancery”) captioned PharmAthene, Inc. v. SIGA Technologies, Inc., C.A. No. 2627-VCP. In its amended complaint, PharmAthene asked the Court to order the Company to enter into a license agreement with PharmAthene with respect to ST-246, also known as Tecovirimat, to declare that the Company was obliged to execute such a license agreement, and to award damages resulting from the Company's alleged breach of that obligation. PharmAthene also alleged that the Company breached an obligation to negotiate such a license agreement in good faith, and sought damages for promissory estoppel and unjust enrichment based on information, capital, and assistance that PharmAthene allegedly provided to the Company during the negotiation process. The Court tried the case in January 2011. In September 2011, the Court of Chancery issued its post-trial opinion. The Court denied PharmAthene’s requests for specific performance and expectation damages measured by present value of estimated future profits. Nevertheless, the Court held that the Company breached its duty to negotiate in good faith and was liable under the doctrine of promissory estoppel. The Court consequently awarded to PharmAthene what the Court described as an equitable payment stream or equitable lien consisting of fifty percent of the net profits that the Company achieves from sales of ST-246 after securing $40 million in net profits, for ten years following the first commercial sale. In addition, the Court awarded PharmAthene one-third of its reasonable attorneys’ fees and expert witness expenses. In May 2012, the Court entered its final order and judgment in this matter, implementing its post-trial opinion. Among other things, the final order and judgment provided that (a) net profits would be calculated in accordance with generally accepted accounting principles applied consistently with how they are applied in the preparation of the Company's financial statements, (b) the net profits calculation would take into account expenses relating to ST-246 commencing with the Company's acquisition of ST-246 in August 2004, and (c) PharmAthene could recover $2.4 million of attorneys’ fees and expenses. In June 2012, the Company appealed to the Supreme Court of the State of Delaware the final order and judgment and certain earlier rulings of the Court of Chancery. Shortly thereafter, PharmAthene filed its cross-appeal. The Company obtained a stay of enforcement of the fee and expense portion of the judgment by filing a surety bond for the amount of the judgment plus post-judgment interest. The Company posted $1.3 million of cash as a 50% collateral for a $2.7 million surety bond. The $1.3 million of cash collateral is recorded in other assets as of September 30, 2015. On January 10, 2013, the parties briefed the issues, and argued before the Delaware Supreme Court, en banc. On May 24, 2013, the Supreme Court of Delaware issued its decision, affirming the Delaware Court of Chancery’s judgment in part, reversing it in part, and remanding to Vice Chancellor Parsons. The Supreme Court affirmed the Chancery Court determination that the Company had breached its contractual obligation to negotiate in good faith; reversed the promissory estoppel holding; and, reversed the Vice Chancellor’s equitable damages award. The Supreme Court held that the trial judge may award expectation damages for breach of the contractual duty to negotiate in good faith if such damages are proven with reasonable certainty, and remanded to the Chancery Court for consideration of damages consistent with that holding. The Supreme Court held that the Chancery Court could reevaluate on remand an alternative award, if any, of attorneys’ fees and expert testimony expenses consistent with the Supreme Court’s opinion. Finally, the Supreme Court declined to consider all claims raised in PharmAthene’s cross appeal because it affirmed the Chancery Court’s finding that the Company was liable for breaching its contractual obligation to negotiate in good faith. On June 11, 2013, the Supreme Court issued its mandate to the Court of Chancery with the decision described above. On August 8, 2014, the Court of Chancery issued its Remand Opinion. In its Remand Opinion, the Court of Chancery reversed its earlier conclusions and held that PharmAthene had carried its burden of demonstrating its entitlement to lump sum expectation damages for lost profits related to Tecovirimat by a preponderance of the evidence. It also stated that in order to calculate PharmAthene’s lost profits, several modifications to the valuation model presented at trial (which the Court of Chancery had rejected as too speculative, among other things, in its post-trial opinion) were required, which modifications the Court of Chancery set forth in the Remand Opinion. The Court of Chancery ruled that PharmAthene is entitled to the value of the revised calculations plus pre- and post-judgment interest at the legal rate with prejudgment interest to accrue from December 20, 2006. The Court of Chancery also denied and dismissed with prejudice PharmAthene’s claims that it is entitled to specific performance or an equitable payment stream, on the grounds that PharmAthene is limited to a contractual remedy and has an adequate remedy at law. Finally, the Court of Chancery ruled that PharmAthene was entitled to (i) forty percent of the reasonable attorneys’ fees and expenses it incurred through post-trial argument, (ii) one-third of the reasonable attorneys’ fees and expenses it incurred in the remand proceedings, (iii) sixty percent of expert witness fees it incurred in the pretrial and trial phases, and (iv) and one-tenth of the expert witness fees it incurred in the remand proceedings. The Remand Opinion instructed the parties to perform damages calculations using the Court's newly modified but previously rejected model. PharmAthene was instructed to provide the Company with a lump sum damages calculation within 10 business days, following which the Company would respond within 10 business days with its own calculation, or agreement with PharmAthene. Additionally, the Remand Opinion specified that the competing calculations would be submitted to the Court of Chancery within 30 days from the date on which PharmAthene provided its lump sum damages calculation to the Company, if there is continuing disagreement on the narrow issue of performing the court's required calculations. On September 16, 2014, as a consequence of the Company's chapter 11 filing, the legal proceedings with PharmAthene were stayed (see Note 1). On October 8, 2014, the Bankruptcy Court approved a Stipulation between the Company and PharmAthene partially lifting the stay to permit the litigation before the Delaware Chancery Court to proceed, including all appeals. The Stipulation, however, provides that the stay shall remain in effect with respect to the enforcement of any judgment that may be entered. On January 15, 2015, the Delaware Court of Chancery entered its Final Order and Judgment, awarding to PharmAthene $113,116,985 in contract expectation damages, plus pre-judgment interest up to January 15, 2015, and certain permitted legal fees, costs, and expenses, for a judgment of $194,649,042. Pursuant to the January 15 Final Order and Judgment, the Company also is liable to PharmAthene for post-judgment interest, in the amount of $30,663.89, per diem, which per diem amount shall periodically be adjusted. On January 16, 2015, the Company appealed from certain portions of the Delaware Court of Chancery's rulings on remand, including but not limited to the Final Order and Judgment, to the Delaware Supreme Court. On January 29, 2015, PharmAthene cross-appealed from certain portions of the Delaware Court of Chancery’s rulings on remand, including but not limited to the Final Order and Judgment, to the Delaware Supreme Court. The Company filed its opening brief on appeal on March 2, 2015; PharmAthene filed its answering brief on appeal and opening brief on cross-appeal on April 1, 2015; the Company filed its reply brief on appeal and answering brief on cross-appeal on May 1, 2015; and PharmAthene filed its reply brief on cross- appeal on May 11, 2015. On October 7, 2015, the Delaware Supreme Court heard oral argument, en banc, and, as of the date hereof , has not issued its decision. There is no assurance that either appeal will be successful. The ultimate loss to be incurred in the future from the PharmAthene litigation is highly uncertain and may differ significantly from the Outstanding Judgment. However, the Company believes that an ultimate loss of some amount is probable. Because the future outcome of the Company's appeal of the Final Order and Judgment to the Supreme Court of Delaware is highly uncertain, the Company has based its loss accrual on the January 7, 2015 Delaware Court of Chancery letter opinion, and the subsequent judgment entered by the Delaware Court of Chancery on January 15, 2015. Based on the Delaware Court of Chancery letter opinion, the Company has recorded a loss accrual for expectation damages of approximately $187.8 million as of September 30, 2015. This amount is classified as a liability subject to compromise. Included in the loss accrual, the Company accrued pre-judgment interest through September 16, 2014, SIGA’s chapter 11 filing date, because it is currently uncertain whether interest accrued subsequent to the chapter 11 filing date will be part of any allowed claim. In addition to the damages loss accrual, the Company has separately accrued $3.2 million for PharmAthene’s attorneys’ fees and expert expenses, related to the case. See Notes 1 and 2 to the financial statements for information relating to the Company's ongoing chapter 11 proceedings. From time to time, the Company is involved in disputes or legal proceedings arising in the ordinary course of business. The Company believes that there is no dispute or litigation pending, except as discussed above, that could have, individually or in the aggregate, a material adverse effect on its financial position, results of operations or cash flows.

Related Party Transactions	9 Months Ended
Related Party Transactions	Sep. 30, 2015
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions In October 2012, the Company funded a letter of credit and deposit to take advantage of a lease for office space secured by an affiliate of M&F from a third party landlord on behalf of the Company. Pursuant to such letter of credit, in January 2013 the Company entered into a sublease in which the Company will pay all costs associated with the lease, including rent. All payments made by the Company pursuant to the sublease will either be directly or indirectly made to the third-party landlord and not retained by M&F or any affiliate. The sublease allows for a free rent period of five months beginning April 1, 2013; subsequent to the free rent period, monthly rent payments are $60,000 for the first five years and $63,000 for the next two years. Upon expiration on September 1, 2020, the sublease and lease provides for two consecutive five year renewal options. The Company has a Services Agreement with M&F and a warrant agreement with M&F. On April 30, 2015, the warrants related to the service agreement expired. Refer to Note 5 to the financial statements for additional information. A member of the Company’s Board of Directors is a member of the Company’s outside counsel. During the three months ended September 30, 2015, and 2014, the Company incurred costs of $102,000, and $148,000, respectively, related to services provided by the outside counsel. During the nine months ended September 30, 2015 and 2014, the Company incurred costs of $475,000 and $515,000, respectively. On September 30, 2015, the Company’s outstanding payables included $128,000 payable to the outside counsel. An affiliate of M&F provided the Company with research services for a pre-clinical drug candidate. During the nine months ended September 30, 2015, the Company incurred costs of $25,750, related to services provided by the affiliate of M&F.

Inventory (Details)	3 Months Ended				9 Months Ended
Inventory (Details)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) course	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Inventory [Line Items]
Courses delivered provisional dosage, twice daily \| course					383,754
Work in process	$ 1,091,948				$ 1,091,948		$ 16,688,682
Finished goods	0				0		2,355,795
Inventory	1,091,948				1,091,948		$ 19,044,477
Inventory write-downs	$ 0		$ 0		$ 60,000	$ 900,000
BARDA Contract
Inventory [Line Items]
Courses delivered provisional dosage, twice daily \| course					383,754

Administration of Chapter 11 Case (Details)	1 Months Ended
Administration of Chapter 11 Case (Details)	Oct. 31, 2015 USD ($)	Apr. 30, 2015 USD ($)	Oct. 21, 2015 USD ($)	Mar. 30, 2015 USD ($)	Jan. 14, 2015 USD ($)	Jun. 30, 2014 USD ($)
Administration of Chapter 11 Case [Abstract]
Debt Satisfied					$ 1,800,000
Prepetition claim satisfied		$ 2,700,000
Rent reduction		$ 35,000
Proof of claim, withdrawn						$ 971,451
Amount of unliquidated proof of claim				$ 109,339,609
Subsequent Event [Member]
Subsequent Event [Line Items]
Proofs of claim, amount of claims filed	143
Amount of liquidated proofs of claims			$ 199,265,756
Proof of claim asserted in connection with litigation			$ 194,649,042

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income (loss)	$ (19,357,276)	$ (246,406,883)
Adjustments to reconcile net income (loss) to net cash used in operating activities
Depreciation and other amortization	199,144	268,037
Increase (decrease) in fair value of warrants	0	313,425
Stock-based compensation	1,225,305	1,836,993
Write-off of leasehold improvements	238,501	0
Gain on sale of assets	0	(345,658)
Non-cash interest expense	10,052	25,312
Changes in assets and liabilities:
Accounts receivable	(487,600)	412,962
Inventory	17,952,529	2,388,438
Deferred costs	(21,448,121)	(10,226,239)
Prepaid expenses and other current assets	(35,232)	29,306
Other assets	0	18,465
Deferred income taxes, net	13,543	53,565,505
Accounts payable, accrued expenses and other current liabilities	714,490	(7,331,858)
Liabilities subject to compromise	(206,412,018)	386,944,313
Deferred revenue	255,012,995	(162,222,189)
Net cash provided by (used in) operating activities	27,626,312	18,643,079
Cash flows from investing activities:
Capital expenditures	(63,166)	(25,894)
Proceeds from sale of assets	0	569,607
Restricted Cash	4,000,000	(4,000,000)
Net cash (used in) provided by investing activities	3,936,834	(3,456,287)
Cash flows from financing activities:
Net proceeds from exercise of warrants and options	12,200	102,035
Payment of common stock tendered for employee tax obligations	0	(415,938)
Repayments of long-term debt	(2,000,000)	(1,500,001)
Net cash provided by financing activities	(1,987,800)	(1,813,904)
Net increase (decrease) in cash and cash equivalents	29,575,346	13,372,888
Cash and cash equivalents at beginning of period	99,713,929	91,309,754
Cash and cash equivalents at end of period	$ 129,289,275	$ 104,682,642

Stockholders' Equity (Notes)	9 Months Ended
Stockholders' Equity (Notes)	Sep. 30, 2015
Equity [Abstract]
Stockholders' Equity Note Disclosure [Text Block]	At September 30, 2015 and December 31, 2014, there were no liability classified warrants outstanding. The Company applied the Black-Scholes model to calculate the fair values of the respective derivative instruments using the contractual term of the warrants. Management estimated the expected volatility using a combination of the Company’s historical volatility and the volatility of a group of comparable companies. For the three months ended September 30, 2015 and 2014, the Company recorded gains of $0 and $11,532, respectively. For the nine months ended September 30, 2015 and 2014, the Company recorded gains of $0 and $313,425, respectively. The gain is a result of net decrease in fair value of Commitment Warrants (as discussed below) during the respective periods. On June 19, 2008, the Company entered into a letter agreement (as amended, the “Letter Agreement”) that expired on June 19, 2010, with MacAndrews & Forbes LLC (“M&F”), a related party, for M&F’s commitment to invest, at the Company's discretion or at M&F’s option, up to $8 million in exchange for (i) the Company's common stock and (ii) warrants to purchase 40% of the number of the Company's shares acquired by M&F. In consideration for the commitment of M&F reflected in the Letter Agreement, on June 19, 2008, M&F received warrants to purchase 238,000 shares of the Company's common stock, initially exercisable at $3.06 (the “Commitment Warrants”). The Commitment Warrants were exercisable until June 19, 2012. On June 19, 2012, the Commitment Warrants were amended to extend expiration to June 19, 2014. Due to certain anti-dilution provisions, the Commitment Warrants were recorded as a liability, and consequently the “mark-to-market” adjustment to the fair value from the extended term was accounted immediately upon modification. On June 19, 2014, the Commitment Warrants expired. Through June 19, 2014, the Company recognized a mark-to-market gain of $129,398. On June 18, 2010, M&F notified the Company of its intention to exercise its right to invest $5.5 million, the remaining amount available under the Letter Agreement following earlier investments and entered into a Deferred Closing and Registration Rights Agreement dated as of June 18, 2010 with the Company. On July 26, 2010, upon satisfaction of certain customary closing conditions, including the expiration of the applicable waiting period pursuant to the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, M&F funded the $5.5 million purchase price to the Company in exchange for the issuance of (i) 1,797,386 shares of common stock and (ii) warrants to purchase 718,954 shares of the Company's common stock at an exercise price of $3.519 per share; the warrants were exercisable for a term of four years from issuance. On July 26, 2014, the warrants expired. Through July 26, 2014, the Company recognized a mark-to-market gain of $184,027. On April 30, 2013, the Company entered into a Services Agreement with M&F, a related party, for certain professional and administrative services. The Services Agreement has a term of three years. As consideration for the Services Agreement, the Company issued warrants to M&F to acquire 250,000 shares of common stock at an exercise price of $3.29 per share. The warrants are fully vested, immediately exercisable and remained exercisable for two years from issuance date. The grant-date fair value, determined using the Black-Scholes model as previously described, is recorded as an asset with a corresponding increase to equity. The asset is amortized over the contractual term of the warrant. On April 30, 2015, the warrants expired. For the nine months ended September 30, 2015 and 2014, the Company recorded an expense of $45,456 and $102,273, respectively. The Company accounted for the warrants in accordance with the authoritative guidance which requires that free-standing derivative financial instruments that require net cash settlement be classified as assets or liabilities at the time of the transaction, and recorded at their fair value. Any changes in the fair value of the derivative instruments are reported in earnings or loss as long as the derivative contracts are classified as assets or liabilities.