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SIGA Technologies, Inc.

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FY2010 Annual Report · SIGA Technologies, Inc.
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UNITED STATES 
SECURITIES AND EXCHANGE COMMISSION 
WASHINGTON, D.C. 20549 

FORM 10-K 

(Mark One) 

  Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 

For the fiscal year ended December 31, 2010 

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 
(State or other jurisdiction of 
incorporation or organization) 

35 East 62nd

 Street 

New York, NY 
(Address of principal executive offices)  

13-3864870 
(IRS Employer Identification. No.) 

10065 
(zip code) 

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

Securities registered pursuant to Section 12(b) of the Act: 

Title of each class 
common stock, $.0001 par value 

Name of each exchange on which registered 
Nasdaq Global Market 

Securities registered pursuant to Section 12(g) of the Act:   

None 

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

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act  
Yes  No . 

Note—Checking the box above will not relieve any registrant required to file reports pursuant to Section 13 or 15(d) of 
the Exchange Act from their obligations under those Sections.   

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  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  No . 

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

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  
 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 .  

The  aggregate  market  value  of  the  voting  and  non-voting  common  stock  held  by  non-affiliates  of  the  registrant, 
based upon the closing sale price of the common stock on June 30, 2010 as reported on the Nasdaq Global Market 
was approximately $336,274,000.   

As of February 28, 2011 the registrant had outstanding 50,212,142 shares of common stock.  

The following document is incorporated herein by reference:  

DOCUMENTS INCORPORATED BY REFERENCE 

Document 
Proxy Statement for the Company's 2011 Annual 
Meeting of Stockholders 

Parts Into Which Incorporated 
Part III 

 
 
 
 
 
 
 
SIGA TECHNOLOGIES, INC. 
FORM 10-K 

Table of Contents 

PA R T  I  

Item 1. 

Business ................................................................................................................................................... 2 

Item 1A. 

Risk Factors ............................................................................................................................................ 11 

Item 1B. 

Unresolved Staff Comments .................................................................................................................. 26 

Item 2. 

Item 3. 

Properties ............................................................................................................................................... 26 

Legal Proceedings .................................................................................................................................. 26 

Item 4. 

Reserved ................................................................................................................................................. 26 

Page No. 

PA R T  I I  

Item 5. 

Market For Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of   
Equity Securities .................................................................................................................................... 27 

Item 6. 

Selected Financial Data .......................................................................................................................... 29 

Item 7. 

Management’s Discussion and Analysis of Financial Condition and Results of Operations ................. 30 

Item 7A. 

Quantitative and Qualitative Disclosures About Market Risk ............................................................... 37 

Item 8. 

Financial Statements and Supplementary Data ...................................................................................... 38 

Item 9. 

Changes in and Disagreements with Accountants on Accounting and Financial Disclosure ................. 56 

Item 9A. 

Controls and Procedures......................................................................................................................... 56 

Item 9B. 

Other Information................................................................................................................................... 57 

PA R T  I I I  

Item 10. 

Directors, Executive Officers and Corporate Governance ..................................................................... 58 

Item 11. 

Executive Compensation ........................................................................................................................ 58 

Item 12. 

Security Ownership of Certain Beneficial Owners and Management and Related Stockholder     
Matters ................................................................................................................................................... 58 

Item 13. 

Certain Relationships and Related Transactions, and Director Independence ....................................... 58 

Item 14. 

Principal Accountant Fees and Services ................................................................................................ 58 

PA R T  I V  

Item 15. 

Exhibits, Financial Statements and Schedules ....................................................................................... 59 

SIGNATURES ............................................................................................................................................................ 63 

 
 
 
 
 
 
 
  
 
 
I tem 1. 

Business 

Certain  statements  in  this  Annual  Report  on  Form  10-K,  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  Section  27A  of  the  Securities  Act  of  1933,  as 
amended,  and  Section  21E  of  the  Securities  Exchange  Act  of  1934,  as  amended.  The  words  or  phrases  “can  be,” 
“expects,”  “may  affect,”  “may  depend,”  “believes,”  “estimate,”  “project”  and  similar  words  and  phrases  are 
intended to identify such forward-looking statements. 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,  (iv)  the  risk  that  SIGA  may  not  be  able  to  secure  funding  from  anticipated  government 
contracts  and  grants,  (v)  the  risk  that  SIGA  may  not  be  able  to  secure  or  enforce  sufficient  legal  rights  in  its 
products,  including  patent  protection,  for  its  products,  (vi)  the  risk  that  any  challenge  to  our  patent  and  other 
property  rights,  if  adversely  determined,  could  affect  our  business  and,  even  if  determined  favorably,  could  be 
costly, (vii) 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, (viii) the risk that the U.S. Biomedical Advanced Research and Development Authority (“BARDA”) may 
not complete a procurement of a smallpox antiviral for the strategic national stockpile, or may complete it on terms 
other than those announced to date, (ix) the risk that any  contractual award  we  may receive to supply a smallpox 
antiviral may be subject to one or more protests which may cause such contract award to be delayed or denied, (x) 
the risk that the volatile and competitive nature of the biotechnology industry may hamper SIGA’s efforts, (xi) the 
risk that the changes in domestic and foreign economic and market conditions may adversely affect SIGA’s ability 
to  advance  its  research  or  its  products,  and  (xii)  the  effect  of  federal,  state,  and  foreign  regulation  on  SIGA’s 
businesses.    All  such  forward-looking  statements  are  current  only  as  of  the  date  on  which  such  statements  were 
made. SIGA does not undertake any obligation to publicly update any forward-looking statement to reflect events or 
circumstances  after  the  date  on  which  any  such  statement  is  made  or  to  reflect  the  occurrence  of  unanticipated 
events. 

I ntr oduction 

SIGA Technologies, Inc. is referred to throughout this report as “SIGA,” “the Company,” “we” or “us.” 

Since  we  were  incorporated  in  Delaware  on  December  28,  1995,  we  have  pursued  the  research, 
development  and  commercialization  of  novel  products  for  the  prevention  and  treatment  of  serious  infectious 
diseases, including products for use in defense against biological warfare agents such as smallpox and arenaviruses. 
Our lead product, ST-246®, is an orally administered antiviral drug that targets orthopoxviruses. In December 2006 
the  Food  and  Drug  Administration  (the  “FDA”)  granted  Orphan  Drug  designation  to  ST-246®  for  the  prevention 
and  treatment  of  smallpox.    In  May  2009,  we  submitted  a  response  to  a  request  for  proposal  (“RFP”)  issued  by 
BARDA with respect to the purchase of 1.7 million courses of a smallpox antiviral (the “2009 BARDA Smallpox 
RFP”), and in September 2009, BARDA informed us that our response to the BARDA Smallpox RFP was deemed 
technically acceptable and in the competitive range.  In October 2010, the U.S. Department of Health and Human 
Services (“HHS”) announced its intention to award SIGA a contract to deliver 1.7 million treatment courses of its 
smallpox antiviral for the Strategic National Stockpile, subject to a resolution of a size protest under Small Business 
Administration  (“SBA”)  guidelines.    On  February  18,  2011,  the  2009  BARDA  Smallpox  RFP  was  cancelled.  
Shortly thereafter, we were advised of a new request for proposal seeking to procure 1.7 million courses of smallpox 
antiviral (“2011 BARDA Smallpox RFP”). We have responded to the 2011 BARDA Smallpox RFP. There can be 
no assurance that SIGA or any other company will receive an award pursuant to this RFP. Further, any award would 
be  subject  to  negotiation  of  final  contract  terms  and  specifications;  thus,  the  final  terms  under  any  contract  with 
BARDA may be materially different than those indicated in the 2011 BARDA Smallpox RFP. 

Our  efforts  are  focused  on  developing  therapeutic  solutions  for  some  of  the  most  lethal  disease  causing 
pathogens.  Our smallpox, dengue and lassa fever antiviral programs are designed to prevent or limit the replication 
of the viral pathogens or the damage that the pathogens can cause.   

2 

 
Pr oduct C andidates and M ar ket Potential 

SIGA Biological Warfare Defense Product Portfolio 

Anti-Orthopoxvirus  Drug:    Smallpox  virus  is  classified  as  a  Category  A  agent  by  the  U.S.  Centers  for  Disease 
Control and Prevention (“CDC”) and is considered one of the most significant threats for use as a biowarfare agent.  
While  deliberate  introduction  of  any  pathogenic  agent  would  be  devastating,  we  believe  the  one  that  holds  the 
greatest  potential  for  harming  the  general  U.S.  population  is  smallpox.  At  present  there  is  no  effective  drug  with 
which to treat or prevent smallpox infections. To address this serious risk, SIGA scientists have identified a potent 
antiviral  drug  candidate,  ST-246®,  which  inhibits  vaccinia,  cowpox,  ectromelia  (mousepox),  monkeypox, 
camelpox, and variola  (smallpox) replication in cell culture and in various animal  models, but not other unrelated 
viruses.  Given the safety concerns with the current smallpox vaccine, there could be several uses for an effective 
smallpox antiviral drug:  prophylactically, to protect the non-immune who are at risk to exposure; therapeutically, to 
reduce mortality and morbidity in those infected with the smallpox virus; and lastly, as an adjunct to the smallpox 
vaccine  in  order  to  reduce  the  frequency  of  serious  adverse  events  due  to  the  live  virus  used  for  vaccination.    In 
December 2005, the FDA approved our Investigational New Drug (“IND”) application for ST-246®.  In June 2006, 
we successfully completed the first human clinical safety study of ST-246®. The trial showed the drug to be well-
tolerated  in  healthy  human  volunteers  at  all  tested  orally  administered  doses.    In  addition,  data  from  blood  level 
exposure  was  sufficient  to  support  once  a  day  dosing.    The  study  was  a  double-blind,  randomized,  placebo 
controlled,  and  ascending  single  dose  study.  In  2006,  ST-246®  became  the  first  drug  ever  to  demonstrate  100% 
protection against human smallpox virus in a primate trial conducted at the CDC.  Later in 2006, in two non-human 
primate trials the drug demonstrated 100% protection for animals injected with high doses of monkeypox virus. One 
study  was  sponsored  by  the  National  Institute  of  Allergy  and  Infectious  Diseases  (“NIAID”)  at  the  National 
Institutes  of  Health  (“NIH”).    The  second  study  was  conducted  by  the  U.S.  Army  Medical  Research  Institute  of 
Infectious  Diseases  (“USAMRIID”)  and  was  funded  by  the  Department  of  Defense’s  Threat  Reduction  Agency 
(“DTRA”).  In  late  2006,  ST-246®  received  Orphan  Drug  designation  for  both  the  treatment  and  prevention  of 
smallpox.    An  additional  Phase  I  clinical  trial  was  started  in  February  2007.    The  trial  was  a  21  day,  escalating, 
multiple-dose,  Phase  I  safety,  tolerability  and  pharmacokinetics  study  of  ST-246®  at  three  different  dosages  in 
healthy volunteers.  The study  was completed in December 2007 and as reported the preliminary results indicated 
that the drug is safe and well tolerated at all tests doses. In August 2008 a Phase I bioequivalence was performed at 
the Orlando Clinical Research Center in Orlando, Florida to compare ST-246® polymorph form I to form V.  We 
submitted the final Clinical Study Report for that study to the FDA in May 2009.  In December 2009, we completed 
a  Phase  II  multiple  dose  clinical  trial  to  evaluate  the  safety,  tolerability  and  pharmacokinetics  of  ST-246®  when 
administered as a single, daily oral dose for fourteen days.   

Anti-Arenavirus Drug:  Arenaviruses are hemorrhagic fever viruses that have been classified as Category A 
agents by the CDC due to the great risk that they pose to public health and national safety.   Among the Category A 
viruses  recognized  by  the  CDC,  there  are  four  hemorrhagic  fever  arenaviruses  (Junin,  Machupo,  Guanarito  and 
Sabia  viruses)  for  which  there  are  no  FDA  approved  treatments  available.      In  order  to  meet  this  threat,  SIGA 
scientists  have  identified  two  lead  drug  candidates  which  have  demonstrated  significant  antiviral  activity  in  cell 
culture  assays  against  arenavirus  pathogens.  We  have  demonstrated  the  therapeutic  efficacy  of  one  of  the  lead 
candidates in several animal  challenge  studies.   SIGA also has programs against other  hemorrhagic fever  viruses, 
including  Dengue  Fever,  Rift  Valley  Fever,  Lymphocytic  choriomeningitis  virus  and  Ebola.  We  believe  that  the 
availability of hemorrhagic fever virus antiviral drugs will address national and global security needs by acting as a 
significant deterrent and defense against the use of arenaviruses as weapons of bioterrorism.  

Dengue Antiviral: Dengue fever, dengue hemorrhagic fever, and dengue shock syndrome are caused by one 
of four serotypes of dengue virus of the genus Flavivirus. Dengue is considered by the World Health Organization to 
be the most important arthropod-borne viral disease with an estimated 50-100 million people infected with the virus 
each year. There is currently no approved antiviral or vaccine for the treatment or prevention of dengue-mediated 
disease. SIGA currently has four drug series in the pre-clinical development stage, each with activity against all four 
serotypes of virus. Compounds from two of these series have recently shown efficacy in a murine model of disease 
and are undergoing optimization through medicinal chemistry.  

Broad  Spectrum  Antiviral:  Research  and  development  efforts  currently  underway  at  SIGA  are  aimed  at 
developing  a  comprehensive  biodefense  against  those  microbial  agents  most  likely  to  be  deployed  as  biological 
weapons.    A broad-spectrum antiviral  would  have  great  utility against  natural or intentional introduction of these 
agents into population centers, as well as provide a treatment option in areas where these pathogens are endemic.  

3 

 
 
 
Screening  for  antivirals  against  specific  CDC  Category  A  and  B  pathogens,  utilizing  SIGA’s  high  throughput 
screening  program,  led  to  the  identification  of  a  unique  collection  of  compounds  with  broad  spectrum  antiviral 
activity.   Compounds  with  potent,  non-toxic  activity  against  a  diversity  of  virus  families  are  currently  being 
characterized with respect to antiviral mechanism(s) of action.  SIGA chemi-informatics tools are being employed to 
explore and determine structure-activity relationships within lead compound series.  To date, we have documented 
sub-micromolar  activity  of  a  broad  spectrum  antiviral  candidate  against  viruses  in  the  Poxviridae,  Filoviridae, 
Bunyaviridae,  Arenaviridae,  Flaviviridae,  Togaviridae,  Retroviridae,  and  Picornaviridae  families.   Lead  series  are 
currently  being  assessed  with  respect  to  the  mechanism  of  antiviral  action,  formulated  for  testing  in  vivo,  and 
administered by multiple routes and dosing regimens to those small animal species traditionally used for modeling 
the pathogenesis of Category A viruses.    

Market for Biological Defense Programs  

The market for biodefense countermeasures has grown dramatically as a result of the increased awareness 
of the threat of global terror activity in the wake of the September 11, 2001 terrorist attacks and the October 2001 
anthrax  letter  attacks.  The  U.S.  government  is  the  principal  source  of  worldwide  biodefense  spending.  Most  U.S. 
government spending on biodefense programs results from development funding awarded by NIAID, BARDA and 
the Department of Defense (“DoD”), and procurement of countermeasures by the HHS, the CDC and the DoD. The 
U.S. government is now the largest source of development and procurement funding for academic institutions and 
biotechnology companies conducting biodefense research or developing vaccines and immunotherapies directed at 
potential agents of bioterror or biowarfare.  

The Project BioShield Act, which became law in 2004, authorizes the procurement of countermeasures for 
biological,  chemical,  radiological  and  nuclear  attacks  for  the  Strategic  National  Stockpile  (“SNS”),  which  is  a 
national repository of medical assets and countermeasures designed to provide federal, state and local public health 
agencies  with  medical  supplies  needed  to  treat  and  protect  those  affected  by  terrorist  attacks,  natural  disasters, 
industrial accidents and other public health emergencies. Project BioShield provided appropriations of $5.6 billion 
to be expended over ten years. The Pandemic and All-Hazards Preparedness Act (“the Preparedness Act”), passed in 
2006,  established  BARDA  as  the  agency  responsible  for  awarding  procurement  contracts  for  biomedical 
countermeasures  and  providing  development  funding  for  advanced  research  and  development  in  the  biodefense 
arena.  The  Preparedness  Act  supplements  the  funding  available  under  Project BioShield  for  radiological,  nuclear, 
chemical and biological countermeasures, and emerging infectious disease threats. Advanced development funding 
for  BARDA  is  created  by  annual  appropriations  by  Congress.  Congress  also  appropriates  annual  funding  for  the 
CDC for the procurement of medical assets and countermeasures for the SNS and for NIAID to conduct biodefense 
research. This appropriation funding supplements amounts available under Project BioShield.  

Since 2002, HHS has provided over $35 billion in funding for civilian biodefense programs which includes 
funding to states and localities through various programs to enhance their emergency preparedness activities and to 
better  enable  them  to  respond  to  large-scale,  natural  or  man-made  public  health  emergencies,  such  as  acts  of 
bioterrorism or infectious disease outbreaks. One of the major concerns in the field of biological warfare agents is 
smallpox which is defined as a high-priority Category A agent by the CDC.  Although declared eradicated in 1979 
by  the  World  Health  Organization  (WHO),  there  is  a  threat  that  a  rogue  nation  or  a  terrorist  group  may  already 
possess or  have the capability to  synthesize an illegal inventory of the  virus that causes smallpox. The only legal 
inventories  of  the  virus  are  held  under  extremely  tight  security  at  the  CDC  in  Atlanta,  Georgia  and  at  the  Vector 
laboratory  in  Russia.  As  a  result  of  this  threat,  the  U.S.  government  has  announced  its  intent  to  make  significant 
expenditures on finding a way to counteract the virus if turned loose by terrorists or on a battlefield. 

In  addition  to  the  U.S.  government,  we  believe  that  other  potential  additional  markets  for  the  sale  of 

biodefense countermeasures include:  

• 

• 

state and local governments, which we expect may be interested in these products to protect emergency 
responders, such as police, fire and emergency medical personnel; 

foreign governments, including both defense and public health agencies; 

4 

 
 
 
 
 
 
 
 
• 

• 

non-governmental organizations and multinational companies, including transportation and security companies; 
and 

healthcare providers, including hospitals and clinics. 

T echnology 

Antiviral Technology: Two Approaches 

SIGA has two approaches to the discovery and development of new antiviral compounds: high-throughput 
screening (“HTS”) and rational drug design.   For HTS, SIGA uses  whole cell virus inhibition assays, pseudotype 
virus  inhibition  assays,  as  well  as  validated  target  biochemical  assays.  SIGA  currently  has  an  in-house  library  of 
260,000 small  molecule compounds that is utilized  for screening in these  various assays. This  strategy allows  for 
both  target  specific  and  target  neutral  screening  and  identification  of  novel  antiviral  compounds.  Compounds  are 
also screened for toxicity in various cell lines to develop a therapeutic index (“TI”) which is the concentration that 
the compound is toxic to 50% of the cells (CC50) divided by the concentration of compound required to inhibit 50% 
of the virus (EC50) (TI= CC50/EC50). Once hits are identified with an acceptable TI they are selected for chemical 
optimization and proceed into the antiviral drug development pipeline. 

For rational drug design, SIGA applies mechanism of action information to screen large virtual compound 
collections  as  well  as  databases  of  commercially  available  compounds  and  prioritize  them  for  subsequent 
experimental  validation.  Rational  drug  design  is  also  used  to  develop  structure  activity  relationships  and  lead 
optimization. 

Collaborative Research Agreements 

We have entered into the following collaborative research arrangements and contracts: 

National  Institutes  of  Health.    We  have  been  awarded  the  following  grants  and  contracts  by  the  NIH 

which were still active for 2010: 

Smallpox  antiviral  drug  development:    In  2006,  SIGA  was  awarded  grants  and  contracts  from  the  NIH 
totaling approximately $21 million for the continued development of ST-246®. In 2008, SIGA was awarded a $55 
million  contract  from  the  NIH  to  support  the  development  of  additional  formulations  and  orthopox-related 
indications for ST-246®.  In 2008, SIGA was also awarded $20 million from the NIH in supplemental funding to 
the Company’s existing $16.5 million contract. In September 2009, SIGA received a three-year, $3.0 million Phase 
II grant from the NIH to fund the continued development of ST-246® treatment of smallpox vaccine-related adverse 
events.    As  of  December  31,  2010,  approximately  $63  million  is  available  to  the  Company  under  these  funding 
opportunities. 

Anti-arenavirus  drug  development:    In  2006,  SIGA  received  a  three-year  grant  of  $6.0  million  from  the 
NIH  to  support  the  development  of  antiviral  drugs  for  Lassa  fever  virus.  As  of  December  31,  2010,  there  are  no 
remaining funds available for the development of the drug. 

Dengue antiviral drug development:  In 2008, SIGA was awarded a $1.0 million, two-year grant from the 
NIH to support lead optimization and animal efficacy for our Dengue antiviral program.  As of December 31, 2010, 
there are no remaining funds available for the development of the drug.   

Broad  spectrum  antiviral  drug  development:  In  September  2009,  the  Company  was  awarded  a  two-year, 
$1.7  million  grant  from  the  NIAID  to  support  the  development  of  broad  spectrum,  small-molecule  inhibitors  of 
bunyaviruses. The grant was awarded under the American Recovery and Reinvestment Act of 2009 (“the Recovery 
Act”).  As of December 31, 2010, approximately $0.9 million is still available to the Company under this grant. 

Defense Threat Reduction Agency.  In February 2010, the Company was awarded a $2.9 million contract 
with options for up to $9.9 million from DTRA to support the pre-clinical development and IND filing of a broad 
spectrum  antiviral  drug  candidate.    During  the  year  ended  December  31,  2010,  we  recognized  revenue  of  $2.3 
million from our contract with DTRA.  As of December 31, 2010, approximately $0.6 million is still available to the 
Company from this contract. 

5 

 
 
 
SIGA  receives  cash  payments  from  the  NIH  under  its  grants  on  monthly  and  semi-monthly  bases,  and 
under  its  NIH  and  DTRA  contracts  on  a  monthly  basis,  as  the  work  is  performed  and  the  related  revenue  is 
recognized.    SIGA’s  current  grants  and  contracts  do  not  include  milestone  payments.      The  agreements  can  be 
cancelled  for  non-performance  and  if  cancelled,  the  Company  will  not  receive  funds  for  additional  future  work 
under the agreements. 

For  a  discussion  of  research  and  development  expenses,  see  Item  7,  “Management’s  Discussion  and 

Analysis of Financial Condition and Results of Operations”. 

C ompetition 

The  biotechnology  and  pharmaceutical  industries  are  characterized  by  rapidly  evolving  technology  and 
intense  competition.  Our  competitors  include  most  of  the  major  pharmaceutical  companies  which  have  financial, 
technical  and  marketing  resources  significantly  greater  than  ours.  Biotechnology  and  other  pharmaceutical 
competitors  include,  but  are  not  limited  to,  Acambis,  Achillion  Pharmaceuticals,  Arrow  Therapeutics,  Celldex 
Therapeutics,  Inc.  (formerly  Avant  Immunotherapeutics,  Inc.),  Bavarian  Nordic  AS,  Chimerix  Inc.,  Bioport, 
Emergent  BioSolutions  and  Novartis.    Academic  institutions,  governmental  agencies  and  other  public  and  private 
research organizations are also conducting research activities and seeking patent protection and may commercialize 
products on their own or through joint venture.  

Our  biodefense  product  candidates  face  significant  competition  for  U.S.  government  funding  for  both 
development and procurement of medical countermeasures for biological, chemical and nuclear threats, diagnostic 
testing systems and other emergency preparedness countermeasures.  

Our  potential  commercial  opportunity  could  be  reduced  or  eliminated  if  our  competitors  develop  and 
commercialize  products  that  are  safer,  more  effective,  have  fewer  side  effects,  are  more  convenient  or  are  less 
expensive  than  any  products  that  we  may  develop.  In  addition,  we  may  not  be  able  to  compete  effectively  if  our 
product  candidates  do  not  satisfy  government  procurement  requirements,  particularly  requirements  of  the  U.S. 
government with respect to biodefense products. 

Human Resources and Research Facilities 

As of February 15, 2011, we had 65 full-time employees. None of our employees is covered by a collective 
bargaining agreement, and we consider our employee relations to be good. Our research and development facilities 
are located in Corvallis, Oregon where we lease approximately 18,100 square feet under a lease agreement signed in 
January 2007 which expires in December 2011 and 5,700 square feet under a sublease agreement signed in January 
2010 which expires in December 2011. 

I ntellectual Pr oper ty and Pr opr ietar y R ights   

Our commercial success will depend in part on our ability to obtain and maintain patent protection for our 
proprietary technologies, drug targets and potential products and to effectively preserve our trade secrets. Because of 
the substantial length of time and expense associated with bringing potential products through the development and 
regulatory clearance processes to reach the marketplace, the pharmaceutical industry places considerable importance 
on obtaining patent and trade secret protection. The patent positions of pharmaceutical and biotechnology companies 
can be highly uncertain and involve complex legal and factual questions. No consistent policy regarding the breadth 
of claims allowed in biotechnology patents has emerged to date. Accordingly, we cannot predict the type and extent 
of claims allowed in these patents. 

We  are  exclusive  owner  of  2  U.S.  patents.  We  are  also  exclusive  owner  of  4  U.S.  provisional  patent 
applications,  15  U.S.  utility  patent  applications,  3  international  PCT  patent  applications  and  105  foreign  patent 
applications.   

6 

 
 
 
 
 
  
The following are our patent positions as of December 31, 2010: 

PATENTS 

U.S. 

South Africa 

OAPI (African Intellectual Property 
Organization) 

Number 
Owned by  
SIGA 

2 

2 

2 

Patent Expiration Dates 

2024 (1), 2027 (1) 

2027 (2) 

2027 (2) 

APPLICATIONS 

U.S. applications 

U.S. provisionals 

PCT 

Australia 

Canada 

Europe 

Japan 

Mexico 

South Africa 

ARIPO (African Regional Intellectual Property 
Organization) 

OAPI 

All Other Jurisdictions 

Number 
Owned by  
SIGA 
15 

4 

3 

8 

13 

13 

12 

6 

6 

8 

6 

33 

We  also  rely  upon  trade  secret  protection  for  our  confidential  and  proprietary  information.  No  assurance 
can be given that other companies will not independently develop substantially equivalent proprietary information 
and techniques or otherwise gain access to our trade secrets or that we can meaningfully protect our trade secrets. 

G over nment R egulation 

Regulatory  Approval  Process.  Regulation  by  governmental  authorities  in  the  United  States  and  other 
countries  is  a  significant  factor  in  the  production  and  marketing  of  any  biopharmaceutical  products  that  we  may 
develop. The nature and the extent to which such regulations may apply to us will vary depending on the nature of 
any  such  products.  Virtually  all  of  our  potential  biopharmaceutical  products  will  require  regulatory  approval  by 
governmental agencies prior to commercialization. In particular, human therapeutic products are subject to rigorous 
pre-clinical and clinical testing and other approval procedures by the FDA and similar health authorities in foreign 
countries.  Various  federal  statutes  and  regulations  also  govern  or  influence  the  manufacturing,  safety,  labeling, 
storage,  record  keeping  and  marketing  of  such  products.  The  process  of  obtaining  these  approvals  and  the 
subsequent  compliance  with  appropriate  federal  and  foreign  statutes  and  regulations  requires  the  expenditure  of 
substantial resources. 

In order to test clinically, produce and market products for diagnostic or therapeutic use, a company must 
comply with mandatory procedures and safety standards established by the FDA and comparable agencies in foreign 
countries. Before beginning human clinical testing of a potential new drug in the United States, a company must file 
an  IND  and  receive  clearance  from  the  FDA.  This  application  is  a  summary  of  the  pre-clinical  studies  that  were 
conducted  to  characterize  the  drug,  including  toxicity  and  safety  studies,  as  well  as  an  in-depth  discussion  of  the 
human clinical studies that are being proposed. 

7 

 
 
 
 
 
 
 
The  pre-marketing  program  required  for  approval  by  the  FDA  for  a  new  drug  typically  involves  a  time-
consuming and costly three-phase process. In Phase I, trials are conducted with a small number of healthy patients to 
determine the early safety profile, the pattern of drug distribution and metabolism. In Phase II, trials are conducted 
with  small  groups  of  patients  afflicted  with  a  target  disease  in  order  to  determine  preliminary  efficacy,  optimal 
dosages  and  expanded  evidence  of  safety.  In  Phase  III,  large  scale,  multi-center  comparative  trials  are  conducted 
with patients afflicted with a target disease in order to provide enough data for statistical proof of efficacy and safety 
required by the FDA and others. 

The  FDA  closely  monitors  the  progress  of  each  of  the  three  phases  of  clinical  testing  and  may,  in  its 
discretion,  reevaluate,  alter,  suspend  or  terminate  the  testing  based  on  the  data  that  has  been  accumulated  to  that 
point and its assessment of the risk/benefit ratio to the patient. Estimates of the total time required for carrying out 
such clinical testing vary between two and ten years. Upon completion of such clinical testing, a company typically 
submits a New Drug Application (“NDA”) or Product License Application (“PLA”) to the FDA that summarizes the 
results and observations of the drug during the clinical testing. Based on its review of the NDA or PLA, the FDA 
will decide whether to approve the drug. This review process can be quite lengthy, and approval for the production 
and marketing of a new pharmaceutical product can require a number of years and substantial funding; there can be 
no assurance that any approvals will be granted on a timely basis, if at all.   

The FDA amended its regulations, effective June 30, 2002, to include the “animal rule”  whereby  certain 
new  drug  and  biological  products  used  to  reduce  or  prevent  the  toxicity  of  chemical,  biological,  radiological,  or 
nuclear  substances  may  be  approved  for  use  in  humans  based  on  evidence  of  effectiveness  derived  only  from 
appropriate animal studies and any additional supporting data when human efficacy trials are not safe or ethical.  

Once  the  product  is  approved  for  sale,  FDA  regulations  govern  the  production  process  and  marketing 
activities,  and  a  post-marketing  testing  and  surveillance  program  may  be  required  to  monitor  continuously  a 
product’s usage and its effects. Product approvals may be withdrawn if compliance with regulatory standards is not 
maintained.  Other  countries  in  which  any  products  developed  by  us  may  be  marketed  could  impose  a  similar 
regulatory process. 

An alternative regulatory mechanism is also available.  The Emergency Use Authorization authority allows 
the  FDA  Commissioner  to  strengthen  the  public  health  protections  against  biological,  chemical,  radiological,  and 
nuclear agents that may be used to attack the American people or the U.S. armed forces. Under this authority, the 
FDA Commissioner may allow medical countermeasures to be used in an emergency to diagnose, treat, or prevent 
serious or life-threatening diseases or conditions caused by such agents, when there is no adequate, approved, and 
available alternative. 

Legislation  and  Regulation  Related  to  Bioterrorism  Counteragents  and  Pandemic  Preparedness.  
Because  some  of  our  drug  candidates  are  intended  for  the  treatment  of  diseases  that  may  result  from  acts  of 
bioterrorism or for pandemic preparedness, they may be subject to the specific legislation and regulation described 
below and elsewhere herein.  

Project  BioShield.    The  Project  BioShield  Act  of  2004  and  related  2006  federal  legislation  provide 
procedures  for  bioterrorism-related  procurement  and  awarding  of  research  grants,  making  it  easier  for  HHS  to 
commit  funds  to  countermeasure  projects.  Project  BioShield  provides  alternative  procedures  under  the  Federal 
Acquisition  Regulation  for  procuring  property  or  services  used  in  performing,  administering  or  supporting 
biomedical  countermeasure  research  and  development.  In  addition,  if  the  Secretary  of  HHS  deems  that  there  is  a 
pressing need, Project BioShield authorizes the Secretary to use an expedited award process, rather than the normal 
peer review process, for grants, contracts and cooperative agreements related to biomedical countermeasure research 
and development activity. 

Under Project BioShield, the Secretary of HHS, with the concurrence of the Secretary of the Department of 
Homeland Security and upon the approval of the President, can contract to purchase unapproved countermeasures 
for  the  SNS  in  specified  circumstances.  Congress  is  notified  of  a  recommendation  for  a  stockpile  purchase  after 
Presidential approval. Project BioShield specifies that a company supplying the countermeasure to the SNS is paid 
on delivery of a substantial portion of the countermeasure. To be eligible for purchase under these provisions, the 
Secretary of HHS must determine that there are sufficient and satisfactory clinical results or research data, including 
data,  if  available,  from  pre-clinical  and  clinical  trials,  to  support  a  reasonable  conclusion  that  the  countermeasure 

8 

 
 
 
 
 
will  qualify  for  approval  or  licensing  within  eight  years.  Project  BioShield  also  allows  the  Secretary  of  HHS  to 
authorize  the  emergency  use  of  medical  products  that  have  not  yet  been  approved  by  the  FDA.  To  exercise  this 
authority, the Secretary of HHS must conclude that: 

• 

• 

• 

• 

the agent for which the countermeasure is designed can cause serious or life-threatening disease; 

the product may reasonably be believed to be effective in detecting, diagnosing, treating or preventing the 
disease; 

the known and potential benefits of the product outweigh its known and potential risks; and 

there is no adequate alternative to a product that is approved and available. 

Although  this  provision  permits  the  Secretary  of  HHS  to  circumvent  the  FDA  approval  process,  its  use 

would likely be limited to rare circumstances.  

Public  Readiness  and  Emergency  Preparedness  Act.    The  Public  Readiness  and  Emergency 
Preparedness Act, or PREP Act, provides immunity for manufacturers from all claims under state or federal law for 
“loss” arising out of the administration or use of a “covered countermeasure.” However, injured persons may still 
the  manufacturer  under  some  circumstances.  “Covered 
bring  a  suit  for  “willful  misconduct”  against 
countermeasures”  include  security  countermeasures  and  “qualified  pandemic  or  epidemic  products”,  including 
products  intended  to  diagnose  or  treat  pandemic  or  epidemic  disease,  such  as  pandemic  vaccines,  as  well  as 
treatments intended to address conditions caused by such products. For these immunities to apply, the Secretary of 
HHS  must  issue  a  declaration  in  cases  of  public  health  emergency  or  “credible  risk”  of  a  future  public  health 
emergency. Since 2007, the Secretary of HHS has issued 8 declarations under the PREP Act to protect from liability 
countermeasures  that  are  necessary  to  prepare  the  nation  for  potential  pandemics  or  epidemics,  including  a 
declaration  on  October  10,  2008,  that  provides  immunity  from  tort  liability  as  it  relates  to  smallpox 
countermeasures. 

Foreign Regulation.  As noted above, in addition to regulations in the United States, we might be subject 
to  a  variety  of  foreign  regulations  governing  clinical  trials  and  commercial  sales  and  distribution  of  our  drug 
candidates.  Whether  or  not  we  obtain  FDA  approval  for  a  product,  we  must  obtain  approval  of  a  product  by  the 
comparable regulatory authorities of foreign countries before we can commence clinical trials or marketing of the 
product in those countries. The actual time required to obtain clearance to market a product in a particular foreign 
jurisdiction  may  vary  substantially,  based  upon  the  type,  complexity  and  novelty  of  the  pharmaceutical  drug 
candidate,  the  specific  requirements  of  that  jurisdiction,  and  in  some  countries  whether  the  FDA  has  previously 
approved the drug for marketing. The requirements governing the conduct of clinical trials, marketing authorization, 
pricing  and  reimbursement  vary  from  country  to  country.    Certain  foreign  jurisdictions,  including  the  European 
Union, have adopted biodefense-specific regulation akin to that available in the United States such as a procedure 
similar to the “animal rule” promulgated by the FDA.   

Regulations  Regarding  Government  Contracting.    The  status  of  an  organization  as  a  government 
contractor  in  the  United  States  and  elsewhere  means  that  the  organization  is  also  subject  to  various  statutes  and 
regulations, including the Federal Acquisition Regulation, which governs the procurement of goods and services by 
agencies  of  the  United  States.  These  governing  statutes  and  regulations  can  impose  stricter  penalties  than  those 
normally  applicable  to  commercial  contracts,  such  as  criminal  and  civil  damages  liability  and  suspension  and 
debarment from future government contracting. In addition, pursuant to various statutes and regulations, government 
contracts can be subject to unilateral termination or modification by the government for convenience in the United 
States  and  elsewhere,  detailed  auditing  requirements,  statutorily  controlled  pricing,  sourcing  and  subcontracting 
restrictions and statutorily mandated processes for adjudicating contract disputes. 

American  Recovery  and  Reinvestment  Act.    The  Recovery  Act  was  passed  on  February  13,  2009  in 
response to the current economic crisis. The Recovery Act is designed to spur job creation and preservation, increase 
economic  activity  and  investment  in  long-term  economic  growth,  and  improve  levels  of  accountability  and 
transparency in government spending, in part through grants similar to the one that we were awarded in September 
2009.  Recipients of Recovery Act funds are required to report quarterly on the amount of funds spent, the status of 
the funded project, the number of jobs created and/or saved as a result of the funded project, and other details, all of 
which  are  made  available  to  the  public  through  the  federal  government’s  official  Recovery  Act  website, 

9 

 
 
 
 
 
 
 
www.recovery.gov.  Compliance  with  Recovery  Act  requirements  will  thus  involve  increased  public  disclosure 
regarding our activities, and may increase our costs. 

A vailability of R epor ts and Other  I nfor mation 

We file annual, quarterly, and current reports, proxy  statements, and other documents with the Securities 
and Exchange Commission (“SEC”) under the Securities Exchange Act of 1934 (the “Exchange Act”). The public 
may read and copy any materials that we file with the SEC at the SEC’s Public Reference Room at 100 F Street, NE, 
Washington,  D.C.  20549.  The  public  may  obtain  information  on  the  operation  of  the  Public  Reference  Room  by 
calling the  SEC at (800) SEC-0330. Also, the SEC  maintains an Internet  website that contains reports, proxy and 
information statements, and other information regarding issuers, including us, that file electronically with the SEC. 
The public can obtain any documents that we file with the SEC at www.sec.gov. 

In  addition,  our  Company  website  can  be  found  on  the  Internet  at  www.siga.com.   The  website  contains 
information about us and our operations.  Copies of each of our filings with the SEC on Form 10-K, Form 10-Q, and 
Form 8-K, and all amendments to those reports, can be viewed and downloaded free of charge as soon as reasonably 
practicable  after  the  reports  and  amendments  are  electronically  filed  with  or  furnished  to  the  SEC.  To  view  the 
reports, access www.siga.com, click on “Investor Relations” and “Financial Information”.  

The following corporate governance related documents are also available on our website:  

•  Code of Ethics and Business Conduct 

•  Audit Committee Charter 

•  Compensation Committee Charter 

•  Nominating and Corporate Governance Committee Charter 

•  Procedure for Sending Communications to the Board of Directors 

•  Procedures for Security Holder Submission of Nominating Recommendations 

• 

2004 Policy on Confidentiality of Information and Securities Trading 

To review these documents, access www.siga.com and click on “Investor Relations” and “Corporate Governance”.  

Any of the above documents can also be obtained in print by any shareholder upon request to the Secretary, SIGA 
Technologies, Inc., 35 East 62nd

 Street, New York, New York 10065.  

10 

 
 
   
 
 
Item 1A.    Risk Factors  

This report contains forward-looking statements and other prospective information relating to future events. 
These forward-looking statements and other information are subject to risks and uncertainties that could cause our 
actual results to differ materially from our historical results or currently anticipated results including the following: 

Risks Related to Our Financial Position and Need for Additional Financing 

We have incurred operating losses since our inception and expect to incur net losses and negative cash flow 
for the foreseeable future. 

We incurred net losses of approximately $28.2 million, $19.4 million, and $10.2 million for the years ended 
December 31, 2010, 2009, and 2008, respectively.  On January 1, 2009, we recognized a $2.7 million increase in our 
opening accumulated deficit balance reflecting the cumulative effect of a change in accounting principle recorded in 
connection  with  certain  warrants  to  acquire  shares  of  the  Company’s  common  stock.  As  of  December  31,  2010, 
2009,  and  2008,  our  accumulated  deficit  was  approximately  $122.5  million,  $94.3  million,  and  $72.2  million, 
respectively.    We  expect  to  continue  to  have  significant  operating  expenses  and  will  need  to  generate  significant 
revenues to achieve and maintain profitability.  

We  cannot  guarantee  that  we  will  achieve  sufficient  revenues  for  profitability.    Even  if  we  do  achieve 
profitability, we cannot guarantee that we can sustain or increase profitability on a quarterly or annual basis in the 
future.  If revenues grow slower than we anticipate, or if operating expenses exceed our expectations or cannot be 
adjusted accordingly, then our business, results of operations, financial condition and cash flows will be materially 
and  adversely  affected.    Because  our  strategy  may  include  the  acquisition  of  other  businesses,  acquisition  and 
integration expenses and any cash required to fund these acquisitions will reduce our available cash. 

Our business will suffer if we are unable to raise additional equity funding. 

Unless and until we successfully sell any of our products, such as pursuant to the BARDA Smallpox RFP, 
we will continue to be dependent on our ability to raise money through the exercise of existing options or warrants 
or through the issuance of new equity.  There is no guarantee that we will continue to be successful in raising such 
funds.  If we are unable to raise additional equity funds, we may be forced to discontinue or cease certain operations.  
We currently have sufficient operating capital to finance our operations beyond the next twelve months.  Our annual 
operating needs vary from year to year depending upon the amount of revenue generated through grants, contracts 
and  licenses,  the  amount  of  projects  we  undertake,  and  the  amount  of  resources  we  expend  in  connection  with 
acquisitions all of which may materially differ from year to year and may adversely affect our business. 

Any additional equity that we raise may contain terms, such as liquidation and other preferences that are 
not  favorable  to  us  or  our  stockholders.  If  we  raise  additional  funds  through  collaboration  and  licensing 
arrangements  with  third  parties,  it  may  be  necessary  to  relinquish  valuable  rights  to  our  technologies  or  product 
candidates or grant licenses on terms that may not be favorable to us. 

Risks Related to Our Common Stock 

Our stock price is, and we expect it to remain, volatile, which could limit investors’ ability to sell stock at a 
profit. 

The volatile price of our stock makes it difficult for investors to predict the value of their investments, to 
sell shares at a profit at any given time, or to plan purchases and sales in advance.  A variety of factors may affect 
the market price of our common stock.  These include, but are not limited to: 

• 

• 

• 

publicity  regarding  actual  or  potential  clinical  results  relating  to  products  under  development  by  our 
competitors or us; 

initiating,  completing  or  analyzing,  or  a  delay  or  failure  in  initiating,  completing  or  analyzing,  pre-
clinical or clinical trials or the design or results of these trials; 

achievement or rejection of regulatory approvals by our competitors or us; 

11 

 
• 

• 

• 

• 

• 

• 

• 

announcements of technological innovations or new commercial products by our competitors or us; 

developments concerning proprietary rights, including patents; 

developments concerning our collaborations; 

regulatory developments in the United States and foreign countries; 

economic or other crises and other external factors; 

period-to-period fluctuations in our revenues and other results of operations; and 

changes in financial estimates by securities analysts. 

Additionally, because the volume of trading in our stock fluctuates significantly at times, any information 

about SIGA in the media may result in significant volatility in our stock price. 

We will not be able to control many of these factors, and we believe that period-to-period comparisons of 

our financial results will not necessarily be indicative of our future performance. 

In  addition,  the  stock  market  in  general,  and  the  market  for  biotechnology  companies  in  particular,  has 
experienced  extreme  price  and  volume  fluctuations  that  may  have  been  unrelated  or  disproportionate  to  the 
operating performance of individual companies.  These broad market and industry factors may seriously harm the 
market price of our common stock, regardless of our operating performance. 

We have identified a material weakness, which has been subsequently remediated, in our internal control over 
financial reporting that resulted in the restatement of our consolidated financial statements  included in our 2009 
Annual Report on Form 10-K/A.   

Our management is responsible for maintaining internal control over financial reporting designed to provide 
reasonable  assurance  regarding  the  reliability  of  financial  reporting  and  the  preparation  of  consolidated  financial 
statements  for  external  purposes  in  accordance  with  GAAP.  Our  management  assessed  the  effectiveness  of  our 
internal control over financial reporting as of December 31, 2009, and identified a material weakness related to the 
failure  to  ensure  timely  application  of  certain  anti-dilution  provisions  contained  in  certain  outstanding  warrant 
arrangements.    As  a  result  of  this  material  weakness,  our  management  concluded  that  our  internal  control  over 
financial reporting and our disclosure controls and procedures were not effective as of December 31, 2009.  See Part 
II — Item 9A, “Controls and Procedures.” 

A  material  weakness  is  a  deficiency,  or  combination  of  deficiencies,  in  internal  control  over  financial 
reporting  such  that  there  is  a  reasonable  possibility  that  a  material  misstatement  of  our  annual  or  interim 
consolidated  financial  statements  will  not  be  prevented  or  detected  on  a  timely  basis.  The  effectiveness  of  any 
controls or procedures is subject to certain limitations, and as a result, there can be no assurance that our controls 
and procedures will detect all errors or fraud. A control can provide only reasonable, not absolute, assurance that the 
objectives of the control system will be attained. We also cannot assure you that other material weaknesses will not 
arise  as  a  result  of  failures  to  maintain  adequate  internal  controls  and  procedures  or  that  circumvention  of  those 
controls  and  procedures  will  not  occur.  Additionally,  even  our  improved  controls  and  procedures  may  not  be 
adequate  to  prevent  or  identify  errors  or  irregularities  or  ensure  that  our  financial  statements  are  prepared  in 
accordance  with  generally  accepted  accounting  principles.    If  we  cannot  maintain  and  execute  adequate  internal 
control over financial reporting or implement required new or improved controls that provide reasonable assurance 
of  the  reliability  of  the  financial  reporting  and  preparation  of  our  financial  statements  for  external  use,  we  could 
suffer  harm  to  our  reputation,  fail  to  meet  our  public  reporting  requirements  on  a  timely  basis,  or  be  unable  to 
properly  report  on  our  business  and  the  results  of  our  operations,  and  the  market  price  of  our  securities  could  be 
materially adversely affected. 

A future issuance of preferred stock may adversely affect the rights of the holders of our common stock. 

Our certificate of incorporation allows our Board of Directors to issue up to 10,000,000 shares of preferred 
stock and to fix the voting powers, designations, preferences, rights and qualifications, limitations or restrictions of 
these shares without any further vote or action by the stockholders. The rights of the holders of common stock will 
be subject to, and could be adversely affected by, the rights of the holders of any preferred stock that we may issue 

12 

 
 
 
 
in  the  future.  The  issuance  of  preferred  stock,  while  providing  desirable  flexibility  in  connection  with  our  future 
activities,  could  also  have  the  effect  of  making  it  more  difficult  for  a  third  party  to  acquire  a  majority  of  our 
outstanding voting stock, thereby delaying, deferring or preventing a change in control. 

Concentration of ownership of our capital stock could delay or prevent a change of control. 

Our directors, executive officers and principal stockholders beneficially own a significant percentage of our 
common  stock.  They  also  have,  through  the  exercise  or  conversion  of  certain  securities,  the  right  to  acquire 
additional  common  stock.  As  a  result,  these  stockholders,  if  acting  together,  have  the  ability  to  significantly 
influence  the  outcome  of  corporate  actions  requiring  shareholder  approval.  Additionally,  this  concentration  of 
ownership may have the effect of delaying or preventing a change in control of SIGA. As of December 31, 2010, 
directors, officers and principal stockholders beneficially owned approximately 49.8% of our outstanding stock. 

Risks Related to Our Dependence on U.S. Government Contracts and Grants 

Most of our immediately foreseeable future revenues are contingent upon grants and contracts from the U. S. 
government, and we may not achieve sufficient revenues from these agreements to attain profitability. 

Until  and  unless  we  successfully  sell  any  of  our  products,  our  ability  to  generate  revenues  will  largely 
depend on our ability to enter into additional research grants, collaborative agreements, strategic alliances, contracts 
and license agreements with third parties or maintain the agreements we currently have in place.  Substantially all of 
our revenues for the years ended December 31, 2010, 2009, and 2008, respectively, were derived from grants and 
contracts.  Our current revenue is primarily derived from contract work being performed for the NIH under grants 
and two major contracts which are scheduled to expire in September 2011 and September 2013, respectively.   

Our future business may be harmed as a result of the government contracting process, which can be a 
competitive bidding process that may involve risks not present in the commercial contracting process. 

We  expect  that  a  significant  portion  of  the  business  that  we  will  seek  in  the  near  future  will  be  under 
government contracts or subcontracts, which may be awarded through competitive bidding. Competitive bidding for 
government contracts presents a number of risks that are not typically present in the commercial contracting process, 
which may include: 

• 

• 

• 

• 

• 

the need to devote substantial time and attention of management and key employees to the preparation 
of bids and proposals for contracts that may not be awarded to us; 

the  need  to  accurately  estimate  the  resources  and  cost  structure  that  will  be  required  to  perform  any 
contract that we might be awarded; 

the  risk  that  the  government  will  issue  a  request  for  proposal  to  which  we  would  not  be  eligible  to 
respond;  

the risk that third parties may submit protests to our responses to requests for proposal that could result 
in delays or withdrawals of those requests for proposal; and 

the  expenses  that  we  might  incur  and  the  delays  that  we  might  suffer  if  our  competitors  protest  or 
challenge  contract  awards  made  to  us  pursuant  to  competitive  bidding,  and  the  risk  that  any  such 
protest  or  challenge  could  result  in  the  resubmission  of  bids  based  on  modified  specifications,  or  in 
termination, reduction or modification of the awarded contract. 

The U.S. government may choose to award future contracts for the supply of smallpox anti-virus and other 
biodefense product candidates that we are developing to our competitors instead of to us. If  we are unable to win 
particular contracts, we may not be able to operate in the market for products that are provided under those contracts 
for a number of years. For example, BARDA’s 2009 request for proposal with respect to acquisition of a smallpox 
antiviral was open to all qualifying small businesses for which we were determined not to qualify. If we are unable 
to  consistently  win  new  contract  awards  over  an  extended  period,  or  if  we  fail  to  anticipate  all  of  the  costs  and 
resources  that  will  be  required  to  secure  such  contract  awards,  our  growth  strategy  and  our  business,  financial 
condition, and operating results could be materially adversely affected.  

13 

 
 
 
The success of our business with the U.S. government depends on our compliance with regulations and 
obligations under our U.S. government contracts and various federal statutes and regulations. 

 Our business with the U.S. government is subject to specific procurement regulations and a variety of other 

legal compliance obligations. These laws and rules include those related to: 

• 

• 

• 

• 

• 

• 

• 

procurement integrity; 

export control; 

government security regulations; 

employment practices; 

protection of the environment; 

accuracy of records and the recording of costs; and 

foreign corrupt practices. 

In  addition,  before  awarding  us  any  contracts,  the  U.S.  government  could  require  that  we  respond 
satisfactorily to a request to substantiate our commercial viability and industrial capabilities. Compliance with these 
obligations  increases  our  performance  and  compliance  costs.  Failure  to  comply  with  these  regulations  and 
requirements could lead to suspension or debarment, for cause, from government contracting or subcontracting for a 
period of time. The termination of a government contract or relationship as a result of our failure to satisfy any of 
these  obligations  would  have  a  negative  impact  on  our  operations  and  harm  our  reputation  and  ability  to  procure 
other government contracts in the future. 

Unfavorable provisions in government contracts, some of which may be customary, may harm our future 
business, financial condition and potential operating results. 

Government contracts customarily contain provisions that give the government substantial rights and remedies, 

many of which are not typically found in commercial contracts, including provisions that allow the government to: 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

terminate existing contracts, in whole or in part, for any reason or no reason; 

 unilaterally reduce or  modify contracts or subcontracts, including through the  use of  equitable price 
adjustments; 

cancel  multi-year  contracts  and  related  orders  if  funds  for  contract  performance  for  any  subsequent 
year become unavailable; 

decline to exercise an option to renew a contract; 

exercise an option to purchase only the minimum amount specified in a contract; 

decline to exercise an option to purchase the maximum amount specified in a contract; 

claim rights to products, including intellectual property, developed under the contract; 

take actions that result in a longer development timeline than expected; 

direct the course of a development program in a manner not chosen by the government contractor; 

suspend  or  debar  the  contractor  from  doing  business  with  the  government  or  a  specific  government 
agency; 

pursue criminal or civil remedies under the False Claims Act and False Statements Act; and 

control or prohibit the export of products.  

Generally, government contracts contain provisions permitting unilateral termination or modification, in whole 
or  in  part,  at  the  government’s  convenience.  Under  general  principles  of  government  contracting  law,  if  the 

14 

 
 
 
  
 
 
government  terminates  a  contract  for  convenience,  the  terminated  company  may  recover  only  its  incurred  or 
committed costs, settlement expenses and profit on work completed prior to the termination. 

If the government terminates a contract for default, the defaulting company is entitled to recover costs incurred 
and  associated  profits  on  accepted  items  only  and  may  be  liable  for  excess  costs  incurred  by  the  government  in 
procuring  undelivered  items  from  another  source.  Our  government  contracts  could  be  terminated  under  these 
circumstances.  Some  government  contracts  permit  the  government  the  right  to  use,  for  or  on  behalf  of  the  U.S. 
government,  any  technologies  developed  by  the  contractor  under  the  government  contract.  If  we  were  to  develop 
technology  under  a  contract  with  such  a  provision,  we  might  not  be  able  to  prohibit  third  parties,  including  our 
competitors, from using that technology in providing products and services to the government. 

Risks Related to Product Development 

Our business depends significantly on our success in completing development and commercialization of drug 
candidates that are still under development. If we are unable to commercialize these drug candidates, or 
experience significant delays in doing so, our business will be materially harmed. 

We have invested a  substantial  majority of our efforts and financial resources in the development of our 
drug candidates. Our ability to generate near-term revenue is particularly dependent on the success of our smallpox 
antiviral  drug  candidate  ST-246®.  The  commercial  success  of  our  drug  candidates  will  depend  on  many  factors, 
including: 

• 

• 

• 

• 

• 

• 

• 

• 

successful  development,  formulation  and  cGMP  scale-up  of  drug  manufacturing  that  meets  FDA 
requirements; 

successful development of animal models; 

successful completion of non-clinical development, including studies in approved animal models; 

our ability to  pay the expense of filing, prosecuting, defending and enforcing patent claims and other 
intellectual property rights. 

successful completion of clinical trials; 

receipt of marketing approvals from the FDA and similar foreign regulatory authorities; 

a determination by BARDA that our biodefense drug candidates should be purchased for the SNS prior 
to FDA approval; 

establishing  commercial  manufacturing  processes  of  our  own  or  arrangements  on  reasonable  terms 
with contract manufacturers; 

•  manufacturing stable commercial supplies of drug candidates, including availability of raw materials; 

• 

• 

launching commercial sales of the product, whether alone or in collaboration with others; and 

acceptance of the product by potential government customers, physicians, patients, healthcare payors 
and others in the medical community. 

We expect to rely on FDA regulations known as the  “animal rule” to obtain approval for our biodefense 
drug candidates. The animal rule permits the use of animal efficacy studies together with human clinical safety trials 
to  support  an  application  for  marketing  approval.  These  regulations  are  relatively  new  and  we  have  limited 
experience in the application of these rules to the drug candidates that we are developing. It is possible that results 
from these animal efficacy studies may not be predictive of the actual efficacy of our drug candidates in humans. If 
we are not successful  in completing the development and  commercialization of our drug candidates, our business 
could be harmed. 

15 

 
  
 
 
 
  
 
We will not be able to commercialize our drug candidates if our pre-clinical development efforts are not 
successful, our clinical trials do not demonstrate safety or our clinical trials or animal studies do not 
demonstrate efficacy. 

Before  obtaining  regulatory  approval  for  the  sale  of  our  drug  candidates,  we  must  conduct  extensive        

pre-clinical development, clinical trials to demonstrate the safety of our drug candidates and clinical or animal trials 
to demonstrate the efficacy of our drug candidates. Pre-clinical and clinical testing is expensive, difficult to design 
and implement, can take many years to complete and is uncertain as to outcome. Success in pre-clinical testing and 
early clinical trials does not ensure that later clinical trials or animal efficacy studies will be successful, and interim 
results of a clinical trial or animal efficacy study do not necessarily predict final results. 

A failure of one or more of our clinical trials or animal efficacy studies can occur at any stage of testing. 
We may experience numerous unforeseen events during, or as a result of, pre-clinical testing and the clinical trial or 
animal efficacy study process that could delay or prevent our ability to receive regulatory approval or commercialize 
our drug candidates, including: 

• 

regulators or institutional review boards may not authorize us to commence a clinical trial or conduct a 
clinical trial at a prospective trial site; 

•  we may decide, or regulators may require us, to conduct additional pre-clinical testing or clinical trials, 
or we may abandon projects that we expect to be promising, if our pre-clinical tests, clinical trials or 
animal efficacy studies produce negative or inconclusive results; 

•  we  might  have  to  suspend  or  terminate  our  clinical  trials  if  the  participants  are  being  exposed  to 

unacceptable health risks; 

• 

• 

• 

regulators  or  institutional  review  boards  may  require  that  we  hold,  suspend  or  terminate  clinical 
development for various reasons, including noncompliance with regulatory requirements; 

the cost of our clinical trials could escalate and become cost prohibitive; 

any regulatory approval we ultimately obtain may be limited or subject to restrictions or post-approval 
commitments that render the product not commercially viable; 

•  we may not be successful in recruiting a sufficient number of qualifying subjects for our clinical trials; 

and 

• 

the  effects  of  our  drug  candidates  may  not  be  the  desired  effects  or  may  include  undesirable  side 
effects or the drug candidates may have other unexpected characteristics. 

We are in various stages of product development and there can be no assurance of successful 
commercialization. 

In general, our research and development programs are at an early stage of development.  To obtain FDA 
approval  for  our  biological  warfare  defense  products  we  will  be  required  to  perform  at  least  one  animal  efficacy 
model and provide animal and human safety data.  Our other products will be subject to the usual FDA regulatory 
requirements which include a number of phases of testing in humans.  

The  FDA  has  not  approved  any  of  our  biopharmaceutical  product  candidates.  Any  drug  candidate  we 
develop  will  require  significant  additional  research  and  development  efforts,  including  extensive  pre-clinical  and 
clinical testing and regulatory approval, prior to commercial sale. We cannot be sure our approach to drug discovery 
will be effective or will result in the development of any drug. We cannot predict with certainty whether any drug 
resulting from our research and development efforts will be commercially available within the next several years, or 
if they will be available at all. 

Even  if  we  receive  initially  positive  pre-clinical  or  clinical  results,  such  results  do  not  mean  that  similar 
results will be obtained in later stages of drug development, such as additional pre-clinical testing or human clinical 
trials.  All  of  our  potential  drug  candidates  are  prone  to  the  risks  of  failure  inherent  in  pharmaceutical  product 
development, including the possibility that none of our drug candidates will or can: 

16 

 
 
 
 
  
• 

• 

• 

• 

• 

• 

• 

• 

be safe, non-toxic and effective; 

otherwise meet applicable regulatory standards; 

receive the necessary regulatory approvals; 

develop into commercially viable drugs; 

be manufactured or produced economically and on a large scale; 

be successfully marketed; 

be reimbursed by government and private insurers; and 

achieve customer acceptance. 

In  addition,  third  parties  may  preclude  us  from  marketing  our  drugs  through  enforcement  of  their 
proprietary rights that  we are not aware of, or third parties  may  succeed in  marketing equivalent or superior drug 
products.  Our  failure  to  develop  safe,  commercially  viable  drugs  would  have  a  material  adverse  effect  on  our 
business, financial condition and results of operations. 

Risks Related to Commercialization 

Because we must obtain regulatory clearance or otherwise operate under strict legal requirements in order to 
test and market our products in the U. S., we cannot predict whether or when we will be permitted to 
commercialize our products. 

A  pharmaceutical  product  cannot  generally  be  marketed  in  the  U.S.  until  it  has  completed  rigorous  pre-
clinical  testing  and  clinical  trials  and  an  extensive  regulatory  clearance  process  implemented  by  the  FDA. 
Pharmaceutical products typically take many years to satisfy regulatory requirements and require the expenditure of 
substantial resources depending on the type, complexity and novelty of the product and its intended use. 

Before  commencing  clinical  trials  in  humans,  we  must  submit  and  receive  clearance  from  the  FDA  by 

means of an IND application. Institutional review boards and the FDA oversee clinical trials and such trials: 

•  must be conducted in conformance with the FDA regulations; 

•  must meet requirements for institutional review board oversight; 

•  must meet requirements for informed consent; 

•  must meet requirements for good clinical and manufacturing practices; 

• 

are subject to continuing FDA oversight; 

•  may require large numbers of test subjects; and 

•  may be suspended by us or the FDA at any time if it is believed that the subjects participating in these 
trials  are  being  exposed  to  unacceptable  health  risks  or  if  the  FDA  finds  deficiencies  in  any  of  the 
Company’s  IND applications or the conduct of these trials. 

Before  receiving  FDA  clearance  to  market  a  product  in  the  absence  of  a  medical  or  public  health 
emergency, we must demonstrate that the product is safe and effective on the patient population that will be treated. 
Data  we  obtain  from  pre-clinical  and  clinical  activities  are  susceptible  to  varying  interpretations  that  could  delay, 
limit  or  prevent  regulatory  clearances.  Additionally,  we  have  limited  experience  in  conducting  and  managing  the 
clinical trials and manufacturing processes necessary to obtain regulatory clearance. 

17 

 
 
If full regulatory clearance of a product is granted, this clearance will be limited only to those states and 
conditions for which the product is demonstrated through clinical trials to be safe and efficacious. We cannot ensure 
that any compound developed by us, alone or with others, will prove to be safe and efficacious in clinical trials and 
will meet all of the applicable regulatory requirements needed to receive full marketing clearance. 

The biopharmaceutical market in which we compete and will compete is highly competitive. 

The  biopharmaceutical  industry  is  characterized  by  rapid  and  significant  technological  change.  Our  success  will 
depend  on  our  ability  to  develop  and  apply  our  technologies  in  the  design  and  development  of  our  product 
candidates and to establish and maintain a market for our product candidates. In addition, there are many companies, 
both public and private, including major pharmaceutical and chemical companies, specialized biotechnology firms, 
universities and other research institutions engaged in developing pharmaceutical and biotechnology products. Many 
of these companies have substantially greater financial, technical, research and development resources, and human 
resources than us. Competitors may develop products or other technologies that are more effective than any that are 
being developed by us or may obtain FDA approval for products more rapidly than us. If we commence commercial 
sales of products,  we still  must compete in the  manufacturing and  marketing of such products, areas in  which  we 
have  no  experience.  Many  of  these  companies  also  have  manufacturing  facilities  and  established  marketing 
capabilities  that  would  enable  such  companies  to  market  competing  products  through  existing  channels  of 
distribution.  Three  companies  with  similar  profiles  are  diaDexus  (formerly  VaxGen,  Inc.),  which  is  developing 
vaccines  against  anthrax,  smallpox  and  HIV/AIDS;  Celldex  Therapeutics  (formerly  Avant  Immunotherapeutics, 
Inc.),  which  has  vaccine  programs  for  agents  of  biological  warfare;  and  Chimerix,  Inc.,  which  is  developing  an 
alternative smallpox therapeutic. 

Our potential products may not be acceptable in the market or eligible for third-party reimbursement 
resulting in a negative impact on our future financial results. 

Any product we develop may not achieve market acceptance. The degree of market acceptance of any of 

our products will depend on a number of factors, including: 

• 

• 

• 

• 

the establishment and demonstration in the  medical community of the clinical efficacy  and safety of 
such products; 

the potential advantage of such products over existing treatment methods; 

the cost of our products relative to their perceived benefits; and 

reimbursement policies of government and third-party payors. 

Physicians,  patients  or  the  medical  community  in  general  may  not  accept  or  utilize  any  product  we  may 
develop. Our ability to generate revenues and income with respect to drugs, if any, developed through the use of our 
technology will depend, in part, upon the extent to which reimbursement for the cost of such drugs will be available 
from  third-party  payors,  such  as  government  health  administration  authorities,  private  healthcare  insurers,  health 
maintenance organizations, pharmacy benefits management companies and other organizations. Third-party payors 
are  increasingly  disputing  the  prices  charged  for  pharmaceutical  products.  If  third-party  reimbursement  was  not 
available  or  sufficient  to  allow  profitable  price  levels  to  be  maintained  for  drugs  we  develop,  it  could  adversely 
affect our business. 

If our products harm people, we may experience product liability claims that may not be covered by 
insurance. 

We face an inherent business risk of exposure to potential product liability claims in the event that drugs we develop 
are alleged to cause adverse effects on patients. Such risk exists for products being tested in human clinical trials, as 
well as products that receive regulatory approval for commercial sale. We have obtained and intend to keep in place 
product liability insurance with respect to drugs we develop, however, we may not be able to obtain such insurance 
in  the  future.  Even  if  such  insurance  is  obtainable,  it  may  not  be  available  at  a  reasonable  cost  or  in  a  sufficient 
amount  to  protect  us  against  liability.    We  currently  maintain  products  liability  insurance  with  coverage  up  to 
aggregate limits of $10 million and coverage of $10 million per occurrence. 

18 

 
 
We may be required to perform additional clinical trials or change the labeling of our products if we or 
others identify side effects after our products are on the market, which could harm sales of the affected 
products. 

If  we  or  others  identify  side  effects  after  any  of  our  products  are  on  the  market,  or  if  manufacturing 

problems occur: 

• 

• 

• 

• 

• 

• 

regulatory approval may be withdrawn; 

reformulation  of  our  products,  additional  clinical  trials,  changes  in  labeling  of  our  products  may  be 
required; 

changes to or re-approvals of our manufacturing facilities may be required; 

sales of the affected products may drop significantly; 

our reputation in the marketplace may suffer; and 

lawsuits, including class action suits, may be brought against us. 

Any of the above occurrences could harm or prevent sales of the affected products or could increase  the 

costs and expenses of commercializing and marketing these products. 

Healthcare reform and controls on healthcare spending may limit the price we charge for any products and 
the amounts that we can sell. 

The U.S. government and private insurers have considered ways to change, and have changed, the manner 
in  which  healthcare  services  are  provided  in  the  U.S.  Potential  approaches  and  changes  in  recent  years  include 
controls on healthcare spending and the creation of large purchasing groups. In the future, the U.S. government may 
institute further controls and limits on healthcare spending, including through the Medicare and Medicaid programs. 
These  controls  and  limits  might  affect  the  payments  we  could  collect  from  sales  of  any  products.  Uncertainties 
regarding future healthcare reform and private market practices could adversely affect our ability to sell any of our 
products profitably in the U.S.  

Laws and regulations governing international operations may preclude us from developing, manufacturing 
and selling certain product candidates outside of the United States and require us to develop and implement 
costly compliance programs. 

We have begun to expand our operations outside of the United States, and we must comply with numerous 
laws  and  regulations  relating  to  our  business  operations  in  each  jurisdiction  in  which  we  plan  to  operate.  The 
creation and implementation  of international business practices compliance programs is  costly and such programs 
are difficult to enforce, particularly where reliance on third parties is required. 

The  Foreign  Corrupt  Practices  Act,  or  FCPA,  prohibits  any  U.S.  individual  or  business  from  paying, 
offering,  or  authorizing  payment  or  offering  of  anything  of  value,  directly  or  indirectly,  to  any  foreign  official, 
political party or candidate for the purpose of influencing any act or decision of the foreign entity in order to assist 
the individual or business in obtaining or retaining business. The FCPA also obligates companies whose securities 
are listed in the United States to comply with certain accounting provisions requiring the company to maintain books 
and records that accurately and fairly reflect all transactions of the corporation, including international subsidiaries, 
and to devise and maintain an adequate system of internal accounting controls for international operations. The anti-
bribery provisions of the FCPA are enforced primarily by the U.S. Department of Justice. The SEC is involved with 
enforcement of the books and records provisions of the FCPA.  

Compliance  with  the  FCPA  is  expensive  and  difficult,  particularly  in  countries  in  which  corruption  is  a 
recognized problem. In addition, the FCPA presents particular challenges in the pharmaceutical industry, because, in 
many countries, hospitals are operated by the government, and doctors and other hospital employees are considered 
foreign officials. Certain payments to hospitals in connection with clinical studies and other work have been deemed 
to be improper payments to government officials and have led to FCPA enforcement actions.  

19 

 
 
 
Various laws, regulations and executive orders also restrict the use and dissemination outside of the United 
States,  or  the  sharing  with  certain  non-U.S.  nationals,  of  information  classified  for  national  security  purposes,  as 
well as certain products and technical data relating to those products. Our expanding presence outside of the United 
States will require us to dedicate additional resources to compliance with these laws, and these laws may preclude us 
from  developing,  manufacturing,  or  selling  certain  products  and  product  candidates  outside  of  the  United  States, 
which could limit our growth potential and increase our development costs. 

The  failure  to  comply  with  laws  governing  international  business  practices  may  result  in  substantial 
penalties,  including  suspension  or  debarment  from  government  contracting.  Violation  of  the  FCPA  can  result  in 
significant civil and criminal penalties. Indictment alone under the FCPA can lead to suspension of the right to do 
business with the U.S. government until the pending claims are resolved. Conviction of a violation of the FCPA can 
result  in  long  term  disqualification  as  a  government  contractor.  The  termination  of  a  government  contract  or 
relationship as a result of our failure to satisfy any of our obligations under laws governing international business 
practices would have a negative impact on our operations and harm our reputation and ability to procure government 
contracts.  The  SEC  also  may  suspend  or  bar  issuers  from  trading  securities  on  United  States  exchanges  for 
violations of the FCPA’s accounting provisions.  

Risks Related to Manufacturing and Manufacturing Facilities 

Problems related to large-scale commercial manufacturing could cause us to delay product launches or 
experience shortages of products. 

Our  drug  candidates  require  several  manufacturing  steps,  and  may  involve  complex  techniques  to  assure 
quality  and  sufficient  quantity,  especially  as  the  manufacturing  scale  increases.  Our  products  must  be  made 
consistently and in compliance with a clearly defined manufacturing process.  Accordingly, it is essential to be able 
to validate and control the manufacturing process to assure that it is reproducible. Slight deviations anywhere in the 
manufacturing process, including obtaining materials, filling, labeling, packaging, storage, shipping, quality control 
and testing, some of which all pharmaceutical companies, including SIGA, experience from time to time, may result 
in lot failures, delay in the release of lots, product recalls or spoilage. We will not be able to sell any lot that fails to 
satisfy release testing specifications. 

If third parties do not manufacture our drug candidates or products in sufficient quantities and at an 
acceptable cost or in compliance with regulatory requirements and specifications, the development and 
commercialization of our drug candidates could be delayed, prevented or impaired. 

We  currently  rely  on  third  parties  to  manufacture  drug  candidates  that  we  require  for  pre-clinical  and 
clinical  development.    In  addition,  we  indicated  in  our  response  to  the  BARDA  Smallpox  RFP  that  we  intend  to 
manufacture  ST-246®  using  contract  manufacturers.  Any  significant  delay  in  obtaining  adequate  supplies  of  our 
drug candidates could adversely affect our ability to develop or commercialize these drug candidates. We expect that 
we will rely on third parties for a portion of the manufacturing process for commercial supplies of drug candidates 
that  we successfully develop.  If our contract manufacturers are unable to scale-up production to generate enough 
materials  for  commercial  launch,  the  success  of  those  products  may  be  jeopardized.  Our  current  and  anticipated 
future  dependence  upon  others  for  the  manufacture  of  our  drug  candidates  may  adversely  affect  our  ability  to 
develop  drug  candidates  and  commercialize  any  product  that  receives  regulatory  approval  on  a  timely  and 
competitive basis. 

We  currently  rely  on  third  parties  to  demonstrate  regulatory  compliance  and  for  quality  assurance  with 
respect  to  the  drug  candidates  manufactured  for  us.  We  intend  to  continue  to  rely  on  these  third  parties  for  these 
purposes  with respect to production of commercial supplies of drugs that  we  successfully develop. Manufacturers 
are subject to ongoing, periodic, unannounced inspection by the FDA and corresponding state and foreign agencies 
or their designees to ensure strict compliance with applicable regulations. 

We cannot be certain that our present or future manufacturers will be able to comply with these regulations 
and other FDA regulatory requirements or similar regulatory requirements outside the U.S. While our contracts call 
for compliance  with all applicable regulatory requirements,  we do  not control compliance by these  manufacturers 

20 

 
 
 
 
 
 
 
 
with these regulations and standards. If we or these third parties fail to comply with applicable regulations, sanctions 
could be imposed on us, which could significantly and adversely affect supplies of our drug candidates.  

Our activities may involve hazardous materials, use of which may subject us to environmental regulatory 
liabilities. 

Our biopharmaceutical research and development sometimes involves the controlled use of hazardous and 
radioactive materials and biological waste. We are subject to federal, state and local laws and regulations governing 
the  use,  manufacture,  storage,  handling  and  disposal  of  these  materials  and  certain  waste  products.  Although  we 
believe  that  our  safety  procedures  for  handling  and  disposing  of  these  materials  comply  with  legally  prescribed 
standards, the risk of accidental contamination or injury  from  these  materials cannot be completely eliminated. In 
the  event  of  an  accident,  we  could  be  held  liable  for  damages,  and  this  liability  could  exceed  our  resources.  The 
research  and  development  activities  of  our  company  do  not  produce  any  unusual  hazardous  products.  We  do  use 
small  amounts  of  radioactive  isotopes  commonly  used  in  pharmaceutical  research,  which  are  stored,  used  and 
disposed of in accordance  with Nuclear Regulatory  Commission regulations. Our  general liability policy provides 
coverage up to annual aggregate limits of $2 million and coverage of $1 million per occurrence. 

We  believe  that  we  are  in  compliance  in  all  material  respects  with  applicable  environmental  laws  and 
regulations and currently do not expect to make material additional capital expenditures for environmental control 
facilities  in  the  near  term.  However,  we  may  have  to  incur  significant  costs  to  comply  with  current  or  future 
environmental laws and regulations. 

Risks Related to Sales of Biodefense Products to the U.S. Government 

Our business could be adversely affected by a negative audit by the U.S. government. 

U.S. government agencies such as the Defense Contract Audit Agency (the “DCAA”), routinely audit and 
investigate  government  contractors.  These  agencies  review  a  contractor’s  performance  under  its  contracts,  cost 
structure and compliance with applicable laws, regulations and standards.  

The DCAA also reviews the adequacy of, and a contractor’s compliance with, its internal control systems 
and  policies,  including  the  contractor’s  purchasing,  property,  estimating,  compensation  and  management 
information systems. Any costs found to be improperly allocated to a specific contract will not be reimbursed, while 
such  costs  already  reimbursed  must  be  refunded.  If  an  audit  uncovers  improper  or  illegal  activities,  we  may  be 
subject to civil and criminal penalties and administrative sanctions, including: 

• 

• 

• 

• 

• 

termination of contracts; 

forfeiture of profits; 

suspension of payments; 

fines; and 

suspension of prohibition from doing business with the U.S. government. 

In addition, we could suffer serious reputational harm if allegations of impropriety were made against us. 

We may be subject to sanction for non-compliance with certain regulatory audit requirements. 

In June 2009, we became aware that we had not complied with certain Department of Health and Human 
Services (“DHHS”) regulations requiring the submission of yearly audited statements to the Office of the Inspector 
General  (“OIG”)  Office  of  Audit  Services.    We  submitted  the  required  audits  and  related  statements  to  the  OIG 
Office of Audit Services. No enforcement action has been taken in this matter, but there can be no assurance that no 
enforcement action will be taken at some future time with respect to this matter or any similar matter if similar or 
related problems are uncovered at some future time. 

21 

 
 
 
 
 
 
 
Laws and regulations affecting government contracts might make it more costly and difficult for us to 
successfully conduct our business. 

We  must  comply  with  numerous  laws  and  regulations  relating  to  the  formation,  administration  and 
performance  of  government  contracts,  which  can  make  it  more  difficult  for  us  to  retain  our  rights  under  these 
contracts. These laws and regulations affect how we do business with federal, state and local government agencies. 
Among the most significant government contracting regulations that affect our business are: 

• 

• 

• 

• 

the Federal Acquisition Regulation and other agency-specific regulations supplemental to the Federal 
Acquisition  Regulation,  which  comprehensively  regulate  the  procurement,  formation,  administration 
and performance of government contracts; 

the business ethics and public integrity obligations, which govern conflicts of interest and the hiring of 
former government employees, restrict the granting of gratuities and funding of lobbying activities and 
incorporate other requirements such as the Anti-Kickback Act and Foreign Corrupt Practices Act; 

export and import control laws and regulations; and 

laws, regulations and executive orders restricting the  use and dissemination of information classified 
for national security purposes and the exportation of certain products and technical data. 

R isks R elated to R egulator y A ppr ovals 

If we are not able to obtain required regulatory approvals, we will not be able to commercialize our drug 
candidates, and our ability to generate revenue will be materially impaired. 

Our drug candidates and the activities associated with their development and commercialization, including 
their testing, manufacture, safety, efficacy, recordkeeping, labeling, storage, approval, advertising, promotion, sale 
and distribution, are subject to comprehensive regulation by the  FDA and other regulatory agencies in the United 
States and by comparable authorities in other countries. Failure to obtain regulatory approval for a drug candidate 
will  prevent  us  from  commercializing  the  drug  candidate.  We  have  limited  experience  in  preparing,  filing  and 
prosecuting  the  applications  necessary  to  gain  regulatory  approvals  and  expect  to  rely  on  third-party  contract 
research organizations and consultants to assist us in this process. Securing FDA approval requires the submission to 
the  FDA  of  extensive  pre-clinical  and  clinical  data,  information  about  product  manufacturing  processes  and 
inspection of facilities and supporting information in order to establish the drug candidate’s safety and efficacy. Our 
future  products  may  not  be  effective,  may  be  only  moderately  effective,  or  may  prove  to  have  significant  side 
effects,  toxicities,  or  other  characteristics  that  may  preclude  our  obtaining  regulatory  approval  or  prevent  or  limit 
commercial use. 

Failure to obtain regulatory approval in international jurisdictions could prevent us from marketing our 
products abroad. 

We  intend  to  have  our  products  marketed  outside  the  United  States.  To  market  our  products  in  the 
European  Union  and  many  other  foreign  jurisdictions,  we  may  need  to  obtain  separate  regulatory  approvals  and 
comply  with  numerous  and  varying  regulatory  requirements.  The  approval  procedure  varies  among  countries  and 
can  involve  additional  testing. The  time  required  to  obtain  approval  may  differ  from  that  required  to obtain  FDA 
approval.  

The  foreign  regulatory  approval  process  may  include  all  of  the  risks  associated  with  obtaining  FDA 
approval. We may not obtain foreign regulatory approvals on a timely basis, if at all. Approval by the FDA does not 
ensure approval by regulatory authorities in other countries or jurisdictions, and approval by one foreign regulatory 
authority  does  not  ensure  approval  by  regulatory  authorities  in  other  foreign  countries  or  jurisdictions  or  by  the 
FDA. We and our potential future collaborators may not be able to file for regulatory approvals and may not receive 
necessary approvals to commercialize our products in any market. 

22 

 
 
 
 
 
 
 
 
 
The Fast Track designation for ST-246® may not actually lead to a faster development or regulatory review 
or approval process. 

We  have  obtained  a  “Fast  Track”  designation  from  the  FDA  for  ST-246®.  However,  we  may  not 
experience a faster development process, review or approval compared to conventional FDA procedures. The FDA 
may withdraw our Fast Track designation if the FDA believes that the designation is no longer supported by data 
from our clinical development program. Our Fast Track designation does not guarantee that we will qualify for or be 
able to take advantage of the FDA’s expedited review procedures or that any application that we may submit to the 
FDA for regulatory approval will be accepted for filing or ultimately approved. 

Risks Related to Our Dependence on Third Parties 

If third parties on whom we rely for clinical trials or certain animal trials do not perform as contractually 
required or as we expect, we may not be able to obtain regulatory approval for or commercialize our drug 
candidates and our business may suffer. 

We do not have the ability to independently conduct the clinical trials, and certain animal trials, required to 
obtain  regulatory  approval  for  our  products.  We  depend  on  independent  investigators,  contract  research 
organizations and other third party service providers to conduct trials of our drug candidates and expect to continue 
to do so. We rely heavily on these third parties for successful execution of our trials, but do not exercise day-to-day 
control over their activities. We are responsible for ensuring that each of our trials is conducted in accordance with 
the general investigational plan and protocols for the trial. Moreover, the FDA requires us to comply with standards, 
commonly referred to as Good Clinical Practices, for conducting and recording and reporting the results of clinical 
trials  to  assure  that  data  and  reported  results  are  credible  and  accurate  and  that  the  rights,  integrity  and 
confidentiality of trial participants are protected.  

Our  reliance  on  third  parties  that  we  do  not  control  does  not  relieve  us  of  these  responsibilities  and 
requirements.  Third  parties  may  not  complete  activities  on  schedule,  or  may  not  conduct  our  trials  in  accordance 
with regulatory requirements or our stated protocols. The failure of these third parties to carry out their obligations 
could delay or prevent the development, approval and commercialization of our drug candidates.  

R isks R elated to Our  I ntellectual Pr oper ty 

Our ability to compete may decrease if we do not adequately protect our intellectual property rights. 

Our commercial success will depend in part on our ability to obtain and maintain patent protection for our 
proprietary technologies, drug targets and potential products and to effectively preserve our trade secrets. Because of 
the substantial length of time and expense associated with bringing potential products through the development and 
regulatory clearance processes to reach the marketplace, the pharmaceutical industry places considerable importance 
on obtaining patent and trade secret protection. The patent positions of pharmaceutical and biotechnology companies 
can be highly uncertain and involve complex legal and factual questions. No consistent policy regarding the breadth 
of  claims  allowed  in  biotechnology  patents  has  emerged  to  date.  Accordingly,  we  cannot  predict  the  type  and 
breadth of claims allowed in these patents. 

As of December 31, 2010,  we exclusively own 2 U.S. patents, 4 U.S. provisional patent applications, 15 
U.S.  utility  patent  applications,  3  International  PCT  patent  applications  and  105  foreign  patent  applications.    We 
included a summary of our patent position as of December 31, 2010 in Part I, Item 1 of this Annual Report on Form 
10-K. 

We also rely on trade secrets, know-how, continuing technological innovation and licensing opportunities. 
In an effort to maintain the confidentiality and ownership of trade secrets and proprietary information, we require 
our employees, consultants and some collaborators to execute confidentiality and invention assignment agreements 
upon  commencement  of  a  relationship  with  us.  These  agreements  may  not  provide  meaningful  protection  for  our 

23 

 
 
 
 
 
 
  
 
 
 
trade  secrets,  confidential  information  or  inventions  in  the  event  of  unauthorized  use  or  disclosure  of  such 
information, and adequate remedies may not exist in the event of such unauthorized use or disclosure. 

If our technologies are alleged or found to infringe the patents or proprietary rights of others, we may be 
sued, we may have to pay damages or be barred from pursuing a technology, or we may have to license those 
rights to or from others on unfavorable terms. Even if we prevail, such litigation may be costly. 

Our commercial success will depend significantly on our ability to operate without infringing the patents or 
proprietary rights of third parties. Our technologies, or the technologies of third parties on which we may depend, 
may  infringe  the  patents  or  proprietary  rights  of  others.  If  there  is  an  adverse  outcome  in  any  dispute  concerning 
rights to these technologies, then we could be subject to significant liability, required to license disputed rights from 
or to other parties and/or required to cease using a technology necessary to carry out our research, development and 
commercialization  activities.  At  present,  we  are  unaware  of  any  patent  infringement  claim  relating  to  any  of  our 
products that is likely to be asserted.  

     The  costs  to  establish  or  defend  against  claims  of  infringement  or  interference  with  patents  or  other 
proprietary rights can be expensive and time-consuming, even if the outcome is favorable. An outcome of any patent 
or proprietary rights administrative proceeding or litigation that is unfavorable to us  may  have a  material adverse 
effect on us. We could incur substantial costs if we are required to defend ourselves in suits brought by third parties 
or if we initiate such suits. We may not have sufficient funds or resources in the event of litigation. Additionally, we 
may not prevail in any such action.  

     Any dispute resulting from claims based on patents and proprietary rights could result in a significant 
reduction  in  the  coverage  of  the  patents  or  proprietary  rights  owned,  optioned  by  or  licensed  to  us  and  limit  our 
ability to obtain meaningful protection for our rights. If patents are issued to third parties that contain competitive or 
conflicting  claims,  we  may  be  legally  prohibited  from  researching,  developing  or  commercializing  potential 
products or be required to obtain licenses to these patents or to develop or obtain alternative technology. We may be 
legally prohibited from using technology owned by others, may not be able to obtain any license to the patents or 
technologies  of  third  parties  on  acceptable  terms,  if  at  all,  or  may  not  be  able  to  obtain  or  develop  alternative 
technologies. 

In December 2006, PharmAthene, Inc. (“PharmAthene”) filed an action against us in the Delaware Court of 
Chancery  captioned  PharmAthene,  Inc.  v.  SIGA  Technologies,  Inc.,  C.A.  No.  2627-N.  In  its  amended  complaint, 
PharmAthene  asks  the  Court  to  order  us  to  enter  into  a  license  agreement  with  PharmAthene  with  respect  to  ST-
246®, as well as issue a declaration that we are obliged to execute such a license agreement, and award damages 
resulting from our supposed breach of that obligation. PharmAthene also alleges that we breached an obligation to 
negotiate  such  a  license  agreement  in  good  faith,  as  well  as  seeks  damages  for  promissory  estoppel  and  unjust 
enrichment based on supposed information, capital and assistance that PharmAthene allegedly provided to us during 
the negotiation process. In January 2008, the Court of Chancery denied our motion to dismiss the original complaint, 
and discovery proceeded. In May 2009, PharmAthene amended its complaint with respect to its claim for breach of 
an  obligation  to  negotiate  in  good  faith,  and  we  filed  our  answer  to  the  amended  complaint  and  counterclaim 
denying the new claim and asserting defenses. 

PharmAthene  has  submitted  an  expert  report  asserting  several  alternative  theories  of  damages,  including 
amounts in a wide range of up to one billion dollars. We believe that the expert’s damages analyses are flawed and 
methodologically unsound. We also continue to believe that we have meritorious defenses to the claims. We filed a 
partial  summary  judgment  motion  on  March  19,  2010,  regarding  certain  aspects  of  PharmAthene’s  claims  and 
damage  assessments.    On  November  23,  2010,  the  Court  of  Chancery  denied  our  motion  for  partial  summary 
judgment.   A trial  was  held before Vice Chancellor Donald F. Parsons, Jr. on January  3 -7, 10-12, 18-19 and 21, 
2011.  The Court reserved decision, and the parties are currently preparing post-trial briefs.  Closing arguments are 
scheduled for April 2011.  It is not currently possible to estimate a range of loss, if any.  

In addition, like  many biopharmaceutical companies,  we  may  from  time to time hire scientific personnel 
formerly employed by other companies involved in one or more areas similar to the activities conducted by us. It is 
possible  that  we  and/or  these  individuals  may  be  subject  to  allegations  of  trade  secret  misappropriation  or  other 
similar claims as a result of their prior affiliations. 

24 

 
 
R isks R elated to Our  B usiness 

We may have difficulty managing our growth. 

We  might  experience  growth  in  the  number  of  our  employees  and  the  scope  of  our  operations.  This 
potential future growth could place a significant strain on  our  management and operations. Our ability  to  manage 
this potential growth will depend upon our ability to broaden our management team and our ability to attract, hire 
and  retain  skilled  employees.  Our  success  will  also  depend  on  the  ability  of  our  officers  and  key  employees  to 
continue to implement and improve our operational and other systems and to hire, train and manage our employees. 

Our ability to use our net operating loss carryforwards may be limited. 

As of December 31, 2010, we had federal net operating loss carryforwards, or NOLs, of $65.7 million to 
offset future taxable income, which expire in various years through 2030, if not utilized.  Under the provisions of the 
Internal  Revenue  Code,  substantial  changes  in  our  ownership,  in  certain  circumstances,  will  limit  the  amount  of 
NOLs that can be utilized annually in the future to offset taxable income.  In particular, section 382 of the Internal 
Revenue Code imposes limitations on a company’s ability to use NOLs if a company experiences a more-than-50% 
ownership change over a three-year period.  If we are limited in our ability to use our NOLs in future years in which 
we have taxable income, we will pay more taxes than if we were able to utilize our NOLs fully. 

25 

 
 
 
Item 1B.     Unresolved Staff Comments 

None. 

I tem 2. 

Properties 

Our headquarters are located in New York City and our research and development facilities are located in 
Corvallis, Oregon. In  New York,  we occupy approximately 1,800 square feet under an Office Service  Agreement 
with an affiliate of a shareholder that is cancelable upon 60 days notice. In Corvallis, we lease approximately 18,100 
square feet under an amended lease agreement signed in January 2007 which expires in December 2011 and 5,700 
square feet under  a sublease agreement  signed in January 2010 which expires  in  December 2011. Our facility in 
Oregon  has  been  improved  to  meet  the  special  requirements  necessary  for  the  operation  of  our  research  and 
development activities.  

I tem 3. 

Legal Proceedings 

In December 2006, PharmAthene, Inc. (“PharmAthene”) filed an action against us in the Delaware Court of 
Chancery  captioned  PharmAthene,  Inc.  v.  SIGA  Technologies,  Inc.,  C.A.  No.  2627-N.  In  its  amended  complaint, 
PharmAthene  asks  the  Court  to  order  us  to  enter  into  a  license  agreement  with  PharmAthene  with  respect  to  ST-
246®, as well as issue a declaration that we are obliged to execute such a license agreement, and award damages 
resulting from our supposed breach of that obligation. PharmAthene also alleges that we breached an obligation to 
negotiate  such  a  license  agreement  in  good  faith,  as  well  as  seeks  damages  for  promissory  estoppel  and  unjust 
enrichment based on supposed information, capital and assistance that PharmAthene allegedly provided to us during 
the negotiation process. In January 2008, the Court of Chancery denied our motion to dismiss the original complaint, 
and discovery proceeded. In May 2009, PharmAthene amended its complaint with respect to its claim for breach of 
an  obligation  to  negotiate  in  good  faith,  and  we  filed  our  answer  to  the  amended  complaint  and  counterclaim 
denying the new claim and asserting defenses. 

PharmAthene  has  submitted  an  expert  report  asserting  several  alternative  theories  of  damages,  including 
amounts in a wide range of up to one billion dollars. We believe that the expert’s damages analyses are flawed and 
methodologically unsound. We also continue to believe that we have meritorious defenses to the claims. We filed a 
partial  summary  judgment  motion  on  March  19,  2010,  regarding  certain  aspects  of  PharmAthene’s  claims  and 
damage  assessments.    On  November  23,  2010,  the  Court  of  Chancery  denied  our  motion  for  partial  summary 
judgment.   A trial  was  held before Vice Chancellor Donald F. Parsons, Jr. on January  3 -7, 10-12, 18-19 and 21, 
2011.  The Court reserved decision, and the parties are currently preparing post-trial briefs.  Closing arguments are 
scheduled for April 2011.  It is not currently possible to estimate a range of loss, if any. 

I tem 4. 

Reserved 

26 

 
 
 
 
PA R T  I I  

I tem 5. 

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer 
Purchases of Equity Securities 

Price Range of Common Stock 

Our common stock trades under the symbol “SIGA”.  Our common stock has been traded on the Nasdaq 
Global Market since September 3, 2009 and, prior to such date, had been traded on the Nasdaq Capital Market since 
September 9, 1997.  Prior to that time there was no public market for our common stock.  The following table sets 
forth,  for  the  periods  indicated,  the  high  and  low  sales  prices  for  the  common  stock,  as  reported  on  the  Nasdaq 
Global Market: 

2010
First Quarter…………………………………………………
Second Quarter………………………………………………
Third Quarter………………………………………………..
Fourth Quarter………………………………………………

High
$               

7.46
7.80
9.10
14.10

Low

$               

5.51
6.15
7.32
7.98

2009
First Quarter…………………………………………………
Second Quarter………………………………………………
Third Quarter………………………………………………..
Fourth Quarter………………………………………………

High
$               

5.86
8.88
8.63
10.09

Low

$               

3.15
4.73
6.25
4.83

As of February 28, 2011, the closing sale price of our common stock was $13.40 per share. There were 47 
holders of record as of February 28, 2011. We believe that the number of beneficial owners of our common stock is 
substantially greater than the number of record holders, because a large portion of common stock is held in broker 
“street names”. 

We  have  paid  no  dividends  on  our  common  stock  and  do  not  expect  to  pay  cash  dividends  in  the 
foreseeable future. We are not under any restriction as to our present or future ability to pay dividends. We currently 
intend to retain any future earnings to finance the growth and development of our business. 

27 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
                 
                 
                 
                 
               
                 
                 
                 
                 
                 
               
                 
Performance Graph 

The  following  line  graph  compares  the  cumulative  total  stockholder  return  through  December  31,  2010, 
assuming  reinvestment  of  dividends,  by  an  investor  who  invested  $100  on  December  31,  2005  in  each  of  (i)  our 
common stock, (ii) the Nasdaq National Market-US; and (iii) the Nasdaq Pharmaceutical Index.  

s
r
a
l
l

o
D

$1,600 
$1,400 
$1,200 
$1,000 
$800 
$600 
$400 
$200 
$-

2005

2006

2007

2008

2009

2010

As of The Year  Ended

SIGA Technologies, Inc.
NASDAQ Biotech Composite  Index

NASDAQ Composite Index

Value of Initial Investment

12/31/05

12/31/06

12/31/07

12/31/08

12/31/09

12/31/10

SIGA Technologies, Inc.
NASDAQ Composite Index
NASDAQ Biotech Composite Index

$          
$          
$          

100
100
100

$          
$          
$          

395
110
101

$          
$          
$          

324
120
106

$          
$            
$            

344
72
92

$          
$          
$          

611
103
107

$       
$          
$          

1,474
120
123

Securities Authorized for Issuance Under Equity Compensation Plans 

The  information  required  by  this  item  concerning  securities  authorized  for  issuance  under  equity 
compensation plans is set forth in Item 12, “Security Ownership of Certain Beneficial Owners and Management and 
Related Stockholder Matters”. 

28 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
I tem 6. 

Selected Financial Data 

The selected financial data  for the  years ended December  31, 2010, 2009 and 2008 and the consolidated 
balance sheet data as of December 31, 2010 and 2009 have been derived from our audited consolidated  financial 
information  including  elsewhere  in  this  annual  report.    The  selected  financial  data  for  the  years  ended  December 
2007 and 2006 and the consolidated balance sheet data as of December 31, 2008, 2007 and 2006 have been derived 
from earlier audited consolidated financial statements not included in this annual report.  The following table should 
be read in conjunction with Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of 
Operations”, and the consolidated financial statements and related notes to those statements included elsewhere in 
this annual report.   

2010

2009
2007
2008
(in thousands, except share and per share data)

2006

Revenues…………………………………………  $               19,216 
8,130
Selling, general and administrative………………
22,659
Research and development………………………
1,149
Patent preparation fees…………………………
(12,722)
Loss from operations……………………………
Increase in fair value of common stock warrants…
(15,957)
Other income (expense), net………………………                       484 
Net loss…………………………………………  $              (28,195)
(0.62)
Loss per share: basic and diluted…………………

$                  

 $               13,812 
7,533
17,423
734
(11,879)
(7,523)
                           1 
 $              (19,400)

 $                 8,066 
4,608
11,613
582
(8,737)
(1,510)
                         94 
 $              (10,153)

 $                 6,699 
                    3,704 
                    9,943 
515
(7,463)
1,430
                       394 
 $                (5,639)

 $                 7,258 
                    4,624 
                    9,149 
295
(6,810)
(3,090)
                           2 
 $                (9,898)

$                  

(0.52)

$                  

(0.29)

$                  

(0.17)

$                  

(0.35)

Weighted average shares outstanding:  basic

 and diluted………………………………………

45,151,774

37,463,255

34,732,625

33,330,814

28,200,130

Cash and cash equivalents and short-term

 investments………………………………….
Long-term obligations……………………………
Total assets………………………………………
Stockholders' equity……………………………

$                

21,331
10,700
27,032
12,069

$                

19,496
9,734
25,915
7,153

$                  

2,322
4,477
8,797
1

$                  

6,832
3,243
10,589
5,228

$                

10,640
4,696
14,028
7,282

Net cash used in operating activities……………

(10,825)

(8,471)

(7,198)

(5,448)

(4,438)

29 

 
 
 
 
 
 
 
                    
                    
                    
                  
                  
                  
                    
                       
                       
                       
                       
                
                
                  
                  
                  
                
                  
                  
                    
                  
           
           
           
           
           
                  
                    
                    
                    
                    
                  
                  
                    
                  
                  
                  
                    
                           
                    
                    
                
                  
                  
                  
                  
I tem 7. 

Management’s Discussion and Analysis of Financial Condition and Results of 
Operations 

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

Overview 

Since  our  incorporation  on  December  28,  1995,  SIGA  has  pursued  the  research,  development  and 
commercialization  of  novel  products  for  the  prevention  and  treatment  of  serious  infectious  diseases,  including 
products for use in defense against biological warfare agents such as smallpox and arenaviruses. Our lead product, 
ST-246®, is an orally administered antiviral drug that targets orthopox viruses. In December 2006, the FDA granted 
Orphan Drug designation to ST-246® for the prevention and treatment of smallpox and in October 2010, expanded 
the Orphan Drug designation to the treatment of orthopoxvirus infections.  In May 2009, we submitted a response to 
a  RFP  issued  by  BARDA  with  respect  to  the  purchase  of  1.7  million  courses  of  a  smallpox  antiviral  and  in 
September  2009,  BARDA  informed  us  that  our  response  to  the  BARDA  Smallpox  RFP  was  deemed  technically 
acceptable  and  in  the  competitive  range.  In  October  2010,  the  HHS  announced  their  intention  to  award  SIGA  a 
contract to deliver 1.7 million treatment courses of its smallpox antiviral for the Strategic National Stockpile, subject 
to  a  size  protest  under  SBA  guidelines.    On  February  18,  2011,  the  2009 BARDA  Smallpox  RFP  was  cancelled.  
Shortly thereafter, we were advised of a new request for proposal seeking to procure 1.7 million courses of smallpox 
antiviral. We have responded to the 2011 BARDA Smallpox RFP. There continues to be no assurance that SIGA or 
any other company will receive an award pursuant to the 2011 BARDA Smallpox RFP. Further, any award would 
be subject to the negotiation of final contract terms and specifications; thus, the final terms under any contract with 
BARDA may be materially different than those indicated in the 2011 BARDA Smallpox RFP. 

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. 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 options and warrants, 
impairment  of  assets  and  income  taxes.    Other  key  accounting  policies,  including  revenue  recognition,  are  less 
subjective and involve a lower degree of estimates and judgment. Below, we discuss these policies further, as well 
as the estimates and judgments involved.   

Critical Accounting Policies 

The  following  is  a  brief  discussion  of  the  significant  accounting  policies  and  methods  used  by  us  in  the 
preparation of our consolidated financial statements.  Note 2 of the Notes to the Consolidated Financial Statements 
includes a summary of all of the significant accounting policies. 

Share-based Compensation 

The  Company  accounts  for  its  stock-based  compensation  using  the  fair  value  recognition  provisions 
prescribed by the authoritative guidance, which requires the measurement and recognition of compensation expense 
for  all  share-based  payment  awards  made  to  employees  and  directors  including  employee  stock  options  based  on 
estimated fair values.   

Stock-based  compensation  expense  for  2010,  2009  and  2008  was  $1.5  million,  $2.1  million  and  $1.0 
million.  The fair value of share-based awards are estimated on the grant date using an option pricing model.  The 
value of the portion of the award that is ultimately expected to vest is recorded as expense over the requisite periods 
in  the  Company’s  consolidated  statement  of  operations.  Determining  the  fair  value  of  stock-based  awards  at  the 
grant date requires judgment, including estimating the expected term over which stock awards will be outstanding 
before  they  are  exercised,  the  expected  volatility  of  our  stock,  and  the  number  of  stock-based  awards  that  are 
expected to be forfeited. It is reasonably likely that future assumptions may change, in which case the fair value of 
future option awards may exceed or fall short of historical calculated fair values.  In addition, for stock options with 
30 

 
 
 
 
 
 
performance conditions, on a quarterly basis we estimate the most probable outcome of the performance conditions 
in order to determine the amount of compensation costs to be recorded over the remaining vesting period.   

Fair Value of Financial Instruments 

The  carrying  value  of  cash  and  cash  equivalents,  accounts  receivables,  short-term  investments,  accounts 
payable  and  accrued  expenses  approximates  fair  value  due  to  the  relatively  short  maturity  of  these  instruments.  
Common stock warrants, which are classified as liabilities are recorded at their fair market value as of each reporting 
period. 

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  to  determine  the  fair 
value  of  certain  common  stock  warrants  on  a  recurring  basis  and  classify  such  warrants  in  Level  2.  The  Black-
Scholes  model  utilizes  inputs  consisting  of:  (i)  the  closing  price  of  SIGA’s  common  stock;  (ii)  the  expected 
remaining life of the warrants; (iii) the expected volatility using a weighted-average of historical volatilities of SIGA 
and a group of comparable companies; and (iv) the risk-free market rate.  At December 31, 2010 and December 31, 
2009, the fair value of such warrants was as follows: 

2010

2009

Common stock warrants classified as current liabilities…………………
Common stock warrants classified as long-term liabilities…………….

Total…………………………………………………………………..

$                          
-

10,524,660
10,524,660

$              

$                

$              

3,260,000
9,733,870
12,993,870

As of December 31, 2010 the Company held approximately $15.0 million in United States Treasury Bills, classified 
as a Level 1 security. The Company does not hold any Level 3 securities. 

Revenue Recognition 

Revenue is recognized when persuasive evidence of an arrangement exists, delivery has occurred, the fee is 
fixed and determinable, collectability is reasonably assured, contractual obligations have been satisfied and title and 
risk of loss have been transferred to the customer.  The Company recognizes revenue from non-refundable up-front 
payments, not tied to achieving a specific performance milestone, over the period which the Company is obligated to 
perform services or based on the percentage of costs incurred to date, estimated costs to complete and total expected 
contract revenue.  Payments for development activities are recognized as revenue is earned, over the period of effort.   
Funding  for  the  acquisition  of  capital  assets  under  cost-plus-fee  grants  and  contracts  is  evaluated  for  appropriate 
recognition  as  a  reduction  to  the  cost  of  the  acquired  asset,  a  financing  arrangement,  or  revenue,  based  on  the 
specific terms of the related grant or contract.  Substantive at-risk milestone payments, which are based on achieving 
a specific performance milestone, are recognized as revenue when the milestone is achieved and the related payment 
is  due,  providing  there  is  no  future  service  obligation  associated  with  that  milestone.    In  situations  where  the 
Company receives payment in advance of the performance of services, such amounts are deferred and recognized as 
revenue as the related services are performed. 

Goodwill  

The  purchase  price  of  an  acquired  company  is  allocated  between  intangible  assets  and  the  net  tangible 
assets of the acquired business with the residual of the purchase price recorded as goodwill.  The determination of 
the value of the intangible assets acquired involves certain judgments and estimates.     

At  December  31,  2010,  our  goodwill  totaled  $898,000.    We  evaluate  goodwill  for  impairment  at  least 
annually or as circumstances  warrant.  Goodwill is tested for recoverability between annual evaluations  whenever 
events  or  changes  in  circumstances  indicate  that  the  carrying  amounts  may  not  be  recoverable.    The  impairment 
31 

 
 
 
 
 
 
 
                
                  
review process compares the fair value of the reporting unit in which goodwill resides to its carrying value.  In 2010, 
the  Company  operated  as  one  business  and  one  reporting  unit.    Therefore,  the  goodwill  impairment  analysis  was 
performed on the basis of the Company as a whole using the market capitalization of the Company as an estimate of 
its  fair  value.    In  the  past,  our  market  capitalization  has  been  significantly  in  excess  of  the  Company’s  carrying 
value.  It is possible that the future market capitalization of SIGA may fall short of our current market capitalization, 
in which case a different amount for potential impairment would result.  The use of the discounted expected future 
cash  flows  to  evaluate  the  fair  value  of  the  Company  as  a  whole  will  possibly  produce  different  results  than  the 
Company’s market capitalization.   

Income Taxes 

Determining  the  consolidated  provision  for  income  tax  expense,  deferred  tax  assets  and  liabilities  and 
related  valuation  allowance,  if  any,  involves  judgment.    On  an  on-going  basis,  we  evaluate  whether  a  valuation 
allowance is needed to reduce our deferred income tax assets to an amount that is more likely than not to be realized.  
The evaluation process includes assessing historical and current results in addition to future expected results.  Upon 
determining  that  we  would  be  able  to  realize  our  deferred  tax  assets,  an  adjustment  to  the  deferred  tax  valuation 
allowance would increase income in the period we make such determination. 

Cumulative Effect of Changes in Accounting Principles 

On January 1, 2009, the Company adopted the provisions of the authoritative guidance for derivatives and 
hedging.  The cumulative effect of the change in accounting principle recorded by the Company in connection with 
certain warrants to acquire shares of the Company’s common stock was recognized as an adjustment to the opening 
balance of accumulated deficit as summarized in the following table: 

Common stock warrants
Accumulated deficit

As reported on
December 31, 2008
$                        
-

(72,158,791)

As adjusted on 
January 1, 2009

$               

2,710,000
(74,868,791)

Effect of change
in accounting

$          

2,710,000
(2,710,000)

Recent Accounting Pronouncements 

In  October  2009,  the  FASB  issued  a  new  accounting  standard  updating  existing  multiple-element 
arrangement  guidance.  The  revised  guidance  requires  companies  to  allocate  revenue  in  arrangements  involving 
multiple deliverables based on the estimated selling price of each deliverable, even if such deliverables are not sold 
separately by either company itself or other vendors. The revised guidance also significantly expands the disclosures 
required  for  multiple-element  revenue  arrangements.  The  revised  guidance  will  be  effective  for  the  first  annual 
period beginning on or after June 15, 2010, early adoption is permitted. The Company adopted the provisions of this 
guidance on January 1, 2010, which had no impact on the consolidated financial statements.  

In January 2010, the FASB issued updated accounting guidance for fair value measurements.  This update 
provides amendments that requires new disclosure as follows: (1) A reporting entity should disclose separately the 
amounts of significant transfers in and out of Level 1 and Level 2 fair-value measurements and describe the reasons 
for the transfers. (2) In the reconciliation for fair value measurements using significant unobservable inputs (Level 
3), a reporting entity should present separately information about purchases, sales, issuances, and settlements (that 
is,  on  a  gross  basis  rather  than  as  one  net  number).  This  update  provides  amendments  that  clarify  existing 
disclosures as  follows:  (1) A  reporting entity should provide fair-value  measurement disclosures  for each class of 
assets and liabilities. A class is often a subset of assets or liabilities within a line item in the statement of financial 
position. A reporting entity needs to use judgment in determining the appropriate classes of assets and liabilities. (2) 
A reporting entity should provide disclosures about the valuation techniques and inputs used to measure fair value 
for  both  recurring  and  nonrecurring  fair  value  measurements.  Those  disclosures  are  required  for  fair  value 
measurements that fall in either Level 2 or Level 3. The new disclosures and clarifications of existing disclosures are 
effective  for  interim  and  annual  reporting  periods  beginning  after  December  15,  2009,  except  for  the  disclosures 
about purchases, sales, issuances, and settlements in the roll-forward of activity in Level 3 fair-value measurements. 
Those disclosures are effective for fiscal years beginning after December 15, 2010, and for interim periods within 
those fiscal  years. The Company  has adopted the  amendments effective  for periods beginning after December 15, 
2009.  The adoption of these amendments did not have a material impact on the consolidated financial statements. 
The Company has not yet adopted the amendments effective for periods beginning after December 15, 2010.  We do 
not expect the latter amendments to have a material impact on our consolidated financial statements.   

32 

 
 
 
 
  
            
              
           
R esults of Oper ations 

The following table sets forth certain consolidated statements of income data as a percentage of net revenue 

for the periods indicated: 

Revenue
Selling, general and administrative
Research and development
Patent preparation fees
Operating loss

2010

2009

2008

100%
42%
118%
6%
66%

100%
55%
126%
5%
86%

100%
57%
144%
7%
108%

Years ended December 31, 2010, 2009, and 2008. 

Revenues from research and development contracts and grants for the years ended December 31, 2010 and 
2009, were $19.2 million and $13.8 million, respectively. The increase of $5.4 million, or 39.1%, mainly relates to a 
$2.2 million increase in revenue generated from federal grants and contracts supporting our broad spectrum antiviral 
development  program  and  a  $2.4  million  increase  generated  from  federal  grants  and  contracts  supporting  our 
arenavirus antiviral program.  Revenue generated from federal grants and contracts supporting the development of 
ST-246 increased $904,000 during the year. 

Revenues from research and development contracts and grants for the years ended December 31, 2009 and 
2008, were $13.8 million and $8.1 million, respectively.  The increase of $5.7 million or 71.2% is mainly due to an 
increase  of  $4.2  million  in  revenue  recognized  from  our  existing  program  for  the  large-scale  manufacturing  and 
packaging  of  ST-246®.  Revenue  recognized  from  federal  grants  and  contracts  to  support  the  development  of 
additional formulations and orthopox-related indications of ST-246® increased by $1.5 million. 

Selling, general and administrative expenses (“SG&A”) for the years ended December 31, 2010 and 2009 
were  $8.1  million  and  $7.5 million,  respectively,  reflecting  an  increase  of  approximately  $598,000  or  7.9%.    The 
increase in SG&A expenses were mainly due to an increase of $559,000 in legal fees, an increase of $260,000 in 
expenses  supporting  business  development  activities  and  an  increase  of  $181,000  in  insurance  premiums.  The 
increase  was  offset  by  a  decline  of  $615,000  in  compensation  related  expenditures,  including  stock-based 
compensation.   

Selling, general and administrative expenses (“SG&A”) for the years ended December 31, 2009 and 2008 
were  $7.5  million  and  $4.6  million,  respectively,  reflecting  an  increase  of  approximately  $2.9  million  or  63.5%.  
Higher SG&A expenses were mainly due to an increase of $204,000 in accounting services resulting from additional 
governmental audits, an increase of $998,000 in stock-based compensation charges, a $71,000 increase in insurance 
premiums,  an  increase  of  $133,000  in  foreign  and  public  relations  consulting,  and  an  increase  of  $1.3  million  in 
legal fees.    

Research and development (“R&D”) expenses were $22.6  million for the year ended December 31, 2010, 
an  increase  of  $5.2  million  or  30%  from  the  $17.4  million  incurred  during  the  year  ended  December  31,  2009.  
Expenditures related to programs for the development of a broad spectrum antiviral drug and an arenavirus antiviral 
drug  increased  $860,000  and  $1.8  million,  respectively.  Expenses  supporting  the  development  of  ST-246® 
increased  $1.0  million  from  the  prior  year.    In  addition  to  the  programs’  direct  expenses,  our  employee 
compensation  expenses  increased  $925,000  as  a  result  of  hiring  additional  R&D  personnel.  As  of  December  31, 
2010 and 2009, the Company had 60 and 49 full time R&D employees, respectively.  

Research and development (“R&D”) expenses were $17.4  million for the year ended December 31, 2009, 
an  increase  of  $5.8  million  or  50%  from  the  $11.6  million  incurred  during  the  year  ended  December  31,  2008.  
Expenditures related to the manufacturing, packaging, and stability of ST-246® increased $3.3 million. Other costs 
related to ST-246® as  well as the development of our other lead drug candidates increased $1.2 million from  the 

33 

 
 
 
 
 
 
 
 
 
prior year. Employee compensation expenses increased $978,000 mainly due to the hiring of additional personnel. 
As of December 31, 2009 and 2008, the Company had 49 and 36 full time R&D employees, respectively. 

During  the  years  ended  December  31,  2010,  2009,  and  2008,  we  spent  $12.2  million,  $10.9  million  and 
$5.4 million, respectively, on the development of ST-246®.  During the year ended December 31, 2010, we spent 
$1.7  million  on  internal  human  resources  dedicated  to  the  drug’s  development  and  $10.5  million  mainly  on 
manufacturing  and  clinical  testing.  During  the  year  ended  December  31,  2009,  we  spent  $1.5  million  on  internal 
human  resources  dedicated  to  the  drug’s  development  and  $9.4  million  mainly  on  packaging  and  manufacturing.  
For the year ended December 31, 2008, we spent $1.2 million on internal human resources dedicated to the drug’s 
development  and  $4.2  million  mainly  on  clinical  trials  and  manufacturing.    From  inception  of  the  ST-246® 
development program to-date, we invested a total of $38.0 million in the program, of which $6.9 million supported 
internal  human  resources,  and  $31.1  million  were  used  mainly  for  manufacturing,  clinical  and  pre-clinical  work.  
These resources reflect research and development expenses directly related to the program.  They exclude additional 
expenditures such as patent costs, allocation of indirect expenses, and other services provided by the NIH and the 
DoD.   

During  the  years  ended  December  31,  2010,  2009,  and  2008,  we  spent  $2.2  million,  $384,000  and 
$930,000, respectively, to support the development of drug candidates for Lassa fever virus and drug candidates for 
certain  arenavirus  pathogens  and  hemorrhagic  fevers.    During  the  year  ended  December  31,  2010,  we  invested 
$181,000 in internal human resources and $2.0 million mainly for the testing of chemical compounds.  During the 
year ended December 31, 2009, we invested $155,000 in internal human resources dedicated to the development of 
these drugs, and $228,000 mainly to testing of chemical compounds.  For the  year ended December 31, 2008, we 
spent $254,000 on internal human resources dedicated to the development of these drugs and $676,000  mainly to 
support pre-clinical testing.  From inception of our programs to develop drug candidates for hemorrhagic fevers, to-
date, we spent a total of $8.1 million related to the programs, of which $2.4 million and $5.7 million were expended 
on internal human resources and pre-clinical work, respectively.  These resources reflect research and development 
expenses directly related to the programs.  They exclude additional expenditures such as patent costs, allocation of 
indirect expenses, and other services provided by the NIH and the DoD. 

During the years ended December 31, 2010, and 2009 we spent $1.5 million and $66,000, respectively, to 
support the development of a broad-spectrum antiviral drug candidate. During the year ended December 31, 2010, 
we  spent  $645,000  on  internal  human  resources  and  $849,000  mainly  on  the  optimization  of  lead  antiviral 
compounds. During the year ended December 31, 2009, we spent $42,000 on internal human resources and $24,000 
mainly on compound modeling software licenses.  From the inception of our program to develop a broad-spectrum 
antiviral drug to date, we have spent a total of $1.6 million related to the program, of which $687,000 and $873,000 
were mainly expended on internal human resources and supporting medicinal chemistry and the optimization of lead 
antiviral compounds, respectively.  These resources reflect expenses directly related to the program.  They exclude 
additional expenditures such as patent costs, allocation of indirect expenses, and other services provided by the NIH 
and the DoD. 

The majority of our product programs are in the early stage of development.  As a result, we cannot make 
reasonable  estimates  of  the  potential  cost  for  most  of  our  programs  to  be  completed  or  the  time  it  will  take  to 
complete the programs.  Our lead product, ST-246, is an orally administered anti-viral drug that targets the smallpox 
virus. In December 2005, the FDA accepted our IND application for ST-246® and granted it Fast-Track status.  In 
December 2006, the FDA granted Orphan Drug designation to ST-246, for the prevention as well as the treatment of 
smallpox.  We expect that costs to complete the development of ST-246® for adult therapeutic use will approximate 
$20  million  to  $25  million,  that  the  development  could  be  completed  within  30  months,  and  that  a  New  Drug 
Application could be filed as the development process is completed.  There is a high risk of non-completion of any 
program,  including  ST-246,  because  of  the  lead  time  to  program  completion,  scientific  issues  that  may  arise  and 
uncertainty of the costs.  However, we could receive additional grants, contracts or technology licenses in the short-
term.  The potential cash and timing is not known and we cannot be certain if they will ever occur. 

The  risk  of  failure  to  complete  any  program  is  high,  as  each,  other  than  our  smallpox  program,  is  in  the 
relatively  early  stage  of  development.    Products  for  the  biological  warfare  defense  market,  such  as  the  ST-246® 
smallpox antiviral, could generate revenues within 30 months.  We expect the future research and development cost 
of our biological warfare defense programs to increase as potential products enter animal studies and safety testing, 
including human safety trials.  Funds for future development will be partially  funded from government grants and 
contracts and  future  financing.  If  we are  unable to obtain additional federal funding in  the required amounts, the 

34 

 
 
development timeline for these products would slow or possibly be suspended.  Delay or suspension of any of our 
programs  could  have  an  adverse  impact  on  our  ability  to  raise  funds  in  the  future,  enter  into  collaborations  with 
corporate partners or obtain additional federal funding from contracts or grants. 

Patent  preparation  expenses  for  the  years  ended  December  31,  2010  and  2009  were  $1.1  million  and 
$734,000, respectively.  The increase of $414,000 or 56.5% is mainly related to our efforts to protect our lead drug 
candidates in geographic territories including South Africa, Japan, China and Europe.   

Patent  preparation  expenses  for  the  years  ended  December  31,  2009  and  2008  were  $734,000  and 
$582,000, respectively.  The increase of $153,000 or $26.2% is mainly related to our efforts to protect our lead drug 
candidates in expanded geographic territories. 

Total operating loss for the years ended December 31, 2010 and 2009 was $12.7 million and $11.9 million, 
respectively.  The increase of $843,000 or 7.1% in net operating loss is a result of the continued expansion of  our 
R&D activities and the hiring of highly specialized personnel, the expansion of SIGA’s laboratory facilities and an 
increase of $559,000 in legal fees mainly related to litigation. 

Total operating loss for the years ended December 31, 2009 and 2008 was $11.9 million and $8.7 million, 
respectively.  The increase of $3.2 million or 36.0% in net operating loss is a result of the continued expansion of  
R&D and specialized personnel, the increase of $1.1 million in non-cash stock based compensation, and an increase 
of $1.3 million in general corporate and litigation related legal fees. 

Changes in the fair value of certain warrants to acquire common stock are recorded as gains or losses.  For 
the  years  ended  December  31,  2010,  2009,  and  2008,  we  recorded  a  loss  of  $16.0  million,  $7.5  million  and  $1.5 
million, respectively, reflecting changes in the fair market value of warrants and rights to purchase common stock 
during  the  respective  years.    The  warrants  and  rights  to  purchase  common  stock  of  SIGA  were  recorded  at  fair 
market value and classified as liabilities.  

Other income for the years ended December 31, 2010, 2009, and 2008, was $484,000, $1,000 and $94,000,  
respectively.    The  increase  in  other  income  in  2010  represented  $10,000  of  interest  income  on  our  cash  and  cash 
equivalents; $648,000 received from the U.S. government for qualified therapeutic drug discovery tax grant offset 
by $175,000 of income tax expense for deferred tax liabilities related to goodwill.  Other income in 2009 and 2008 
represented interest income on our cash and cash equivalents.  

L iquidity and C apital R esour ces 

On December 31, 2010, we had $6.3 million in cash and cash equivalents and $15.0 million in short-term 
investments.  During the year ended December 31, 2010, we received net proceeds of $7.7 million from exercises of 
warrants and options to purchase shares of the Company’s common stock and $5.5 million for the exercise of rights 
to acquire shares under a letter agreement dated June 19, 2008.  

In February 2010, the Company  was awarded a $2.8 million contract  with options for up to $9.9 million 
from  the  Department  of  Defense’s  Transformational  Medical  Technologies  (TMT)  through  the  Defense  Threat 
Reduction Agency (“DTRA”) to support the pre-clinical development and IND filing of a broad spectrum antiviral 
drug candidate. 

In September 2009, the Company was awarded a two-year, $1.7 million grant from the NIAID of the NIH, 
to support the development of broad spectrum, small-molecule inhibitors of bunyaviruses. The grant was awarded 
under the Recovery Act.  Moreover, the Company received a three-year, $3.0 million Phase II grant from the NIH to 
fund the continued development of ST-246® treatment of smallpox vaccine-related adverse events. 

Operating activities 
Net cash used in operations during the years ended December 31, 2010, 2009, and 2008 was $10.8 million, 
$8.5  million  and    $7.2  million,  respectively.    The  increase  in  net  cash  used  in  operations  is  mainly  due  to  the 
continued growth in our operations, including the transition to a highly specialized R&D workforce, packaging, and 
manufacturing of ST-246®, clinical and pre-clinical testing of our leading programs, and higher legal fees.   

35 

 
 
 
 
On  December  31,  2010  and  2009,  our  accounts  receivable  balance  was  $3.0  million  and  $2.4  million, 
respectively.    The  increase  in  our  account  receivable  balances  reflects  the  expanded  work  performed  during 
November  and  December  of  2010  under  our  two  contracts  with  the  NIAID  as  well  as  work  performed  under  our 
broad  spectrum  antiviral  development  contract.    Funds  outstanding  under  these  contracts  were  collected  during 
January and February 2011.  Our accounts payable and accrued expenses balance was $4.1 million and $4.2 million 
on December 31, 2010 and 2009, respectively. 

Investing activities 
Capital  expenditures  during  the  years  ended  December  31,  2010,  2009,  and  2008  were  approximately 
$550,000, $340,000 and $340,000, respectively  As of December 31, 2010 and 2009, we had $15.0 million and $5 
million invested in U.S. Treasury bills. 

Financing activities 
Cash provided by financing activities was $13.2 million, $26.0 million, and $3.0 million, during the years 
ended December 31, 2010, 2009, and 2008, respectively.  During the years ended December 31, 2010 and 2009, we 
received  net  proceeds  of  $13.2  million  and  $7.4  million,  respectively,  from  exercises  of  options  and  warrants  to 
purchase  common  stock,  including  cash  receipts  from  exercises  under  a  letter  agreement  dated  June  19,  2008  (as 
amended, the “Letter Agreement”) with MacAndrews & Forbes LLC (“M&F”), a related party.   

Under  the  Letter  Agreement,  which  expired  on  June  19,  2010,  M&F  committed  to  invest,  at  SIGA’s 
discretion  or  at  M&F’s  option,  up  to  $8  million  in  exchange  for  (i)  SIGA  common  stock    and  (ii)  warrants  to 
purchase  40%  of  the  number  of  SIGA  shares  acquired  by  M&F.  In  July  2010,  we  issued  1,797,386  shares  of 
common stock and (ii) warrants to purchase 718,954 shares of SIGA common stock in exchange for $5.5 million.  In  
2009,  we  issued  to  M&F  816,993  shares  of  common  stock  and  326,797  warrants  to  acquire  common  stock  in 
exchange for total proceeds of $2.5 million.  The number of shares issuable pursuant to the warrants granted under 
the Letter Agreement, as amended, as well as the exercise price of those warrants, may be subject to adjustment as a 
result of the effect of future equity issuances on certain anti-dilution provisions in the Letter Agreement.   

In December 2009 we received net proceeds of $18.6 million from the sale of 2,725,339 shares of common 
stock, par value $0.0001 per share, for $7.35 per share, pursuant to subscription agreements with the investors who 
participated in that offering. 

Other 
We  have  incurred    cumulative    net  losses  and    expect    to    incur    additional    losses    to    perform    further  
research  and development  activities.  We do not have commercial products and have limited capital resources. We 
will  need  additional  funds  to  complete  the  development  of  our  products.    Our  plans  with  regard  to  these  matters 
include  continued  development  of  our  products  as  well  as  seeking  additional  capital  through  a  combination  of 
collaborative  agreements,  strategic  alliances,  research  grants,  and  future  equity  and  debt  financing.  Although  we 
continue  to  pursue  these  plans,  there  is  no  assurance  that  we  will  be  successful  in  obtaining  future  financing  on 
commercially reasonable terms or that we will be able to secure funding from anticipated government contracts and 
grants.   

We believe that our existing funds combined with cash flows primarily from continuing government grants 
and  contracts  will  be  sufficient  to  support  our  operations  for  at  least  the  next  12  months.  The  success  of  the 
Company is dependent upon commercializing its research and development programs and the Company’s ability to 
obtain  adequate  future  financing.  If  the  Company  is  unable  to  raise  adequate  capital  and/or  achieve  profitable 
operations, future operations might need to be scaled back or discontinued. The financial statements do not include 
any  adjustments  relating  to  the  recoverability  of  the  carrying  amount  of  recorded  assets  and  liabilities  that  might 
result from the outcome of these uncertainties.   

Our technical operations are  based in our research  facility in Corvallis,  Oregon.  We continue  to seek to 
fund a major portion of our ongoing antiviral programs through a combination of government grants, contracts and 
strategic  alliances.    While  we  have  had  success  in  obtaining  strategic  alliances,  contracts  and  grants,  there  is  no 
assurance  that  we  will  continue  to  be  successful  in  obtaining  funds  from  these  sources.    Until  additional 
relationships  are  established,  we  expect  to  continue  to  incur  significant  research  and  development  costs  and  costs 
associated  with  the  manufacturing  of  product  for  use  in  clinical  trials  and  pre-clinical  testing.    It  is  expected  that 
general  and  administrative  costs,  including  patent  and  regulatory  costs,  necessary  to  support  clinical  trials  and 

36 

 
 
 
research and development will continue to be significant in the future.  We expect to incur operating losses for the 
foreseeable future and there can be no assurance that we will ever achieve profitable operations. 

Contractual Obligations, Commercial Commitments and Purchase Obligations 

            As of  December 31, 2010, our purchase obligations are not  material. We lease certain facilities and office 
space under operating leases.   Our obligations under such leases do not extend past December 31, 2011.  

Off-B alance Sheet A r r angements 

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

Item 7A.  

Quantitative and Qualitative Disclosures About Market Risk 

Our investment portfolio includes 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. 

37 

 
 
 
 
 
I tem 8. 

 Financial Statements and Supplementary Data 

Index to the Consolidated Financial Statements 

Report of Independent Registered Public Accounting Firm ........................................................................................ 39 

Consolidated Balance Sheets as of December 31, 2010 and 2009 .............................................................................. 41 

Consolidated Statements of Operations for the years ended December 31, 2010, 2009, and 2008 ............................. 42 

Consolidated Statements of Changes in Stockholders’ Equity for the years ended December 31, 2010, 2009 

and 2008 ............................................................................................................................................................... 43 

Consolidated Statements of Cash Flows for the years ended December 31, 2010, 2009, and 2008 ............................ 44 

Notes to Consolidated Financial Statements ............................................................................................................... 45 

38 

 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm 

To the Board of Directors and Stockholders of SIGA Technologies, Inc.: 

In our opinion, the accompanying consolidated balance sheets and the related consolidated statements of operations, 
of changes in stockholders' equity and of cash flows present fairly, in all material respects, the financial position of 
SIGA Technologies, Inc. and its subsidiary at December 31, 2010 and December 31, 2009, and the results of their 
operations and their cash  flows  for each of the three  years in the period ended December 31, 2010 in conformity 
with accounting principles generally accepted in the United States of America.  Also in our opinion, the Company 
maintained,  in  all  material  respects,  effective  internal  control  over  financial  reporting  as  of  December  31,  2010, 
based  on  criteria  established  in  Internal  Control  -  Integrated  Framework  issued  by  the  Committee  of  Sponsoring 
Organizations  of  the  Treadway  Commission  (COSO).    The  Company's  management  is  responsible  for  these 
financial statements, for maintaining effective internal control over financial reporting and for its assessment of the 
effectiveness of internal control over financial reporting, included in Management's Report on Internal Control over 
Financial  Reporting  appearing  under  Item  9A.    Our  responsibility  is  to  express  opinions  on  these  financial 
statements  and  on  the  Company's  internal  control  over  financial  reporting  based  on  our  integrated  audits.    We 
conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United 
States).  Those standards require that we plan and perform the audits to obtain reasonable assurance about whether 
the  financial  statements  are  free  of  material  misstatement  and  whether  effective  internal  control  over  financial 
reporting was maintained in all material respects.  Our audits of the financial statements included examining, on a 
test  basis,  evidence  supporting  the  amounts  and  disclosures  in  the  financial  statements,  assessing  the  accounting 
principles  used  and  significant  estimates  made  by  management,  and  evaluating  the  overall  financial  statement 
presentation.  Our audit of internal control over financial reporting included obtaining an understanding of internal 
control  over  financial  reporting,  assessing  the  risk  that  a  material  weakness  exists,  and  testing  and  evaluating  the 
design  and  operating  effectiveness  of  internal  control  based  on  the  assessed  risk.    Our  audits  also  included 
performing  such  other  procedures  as  we  considered  necessary  in  the  circumstances.    We  believe  that  our  audits 
provide a reasonable basis for our opinions. 

As discussed in Note 2 to the consolidated financial statements, effective January 1, 2009, the Company changed the 
way certain financial instruments that are settled in the Company's common stock are accounted for. 

A  company's  internal  control  over  financial  reporting  is  a  process  designed  to  provide  reasonable  assurance 
regarding  the  reliability  of  financial  reporting  and  the  preparation  of  financial  statements  for  external  purposes  in 
accordance  with  generally  accepted  accounting  principles.    A  company's  internal  control  over  financial  reporting 
includes  those  policies  and  procedures  that  (i)  pertain  to  the  maintenance  of  records  that,  in  reasonable  detail, 
accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable 
assurance  that  transactions  are  recorded  as  necessary  to  permit  preparation  of  financial  statements  in  accordance 
with generally accepted accounting principles, and that receipts and expenditures of the company are being  made 
only in accordance  with authorizations of  management and directors of the company; and (iii) provide reasonable 

39 

 
 
assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's 
assets that could have a material effect on the financial statements. 

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

/s/ PRICEWATERHOUSECOOPERS, LLP 

New York, New York 
March 9, 2011 

40 

 
 
SI G A  T E C H NOL O G I E S, I NC . 
C ONSOL I DA T E D B A L A NC E  SH E E T S 

A s of December  31, 2010 and 2009 

2010

2009

AS S ETS
Current assets

Cash and cash equivalents……………………………………………………….
Short term investments……………………………………………………………
Accounts receivable…………………...………………..……………..…………
Prepaid expenses………………………………………………………….…….
Total current assets………………………………………………………..

$               

6,332,053
14,999,350
3,002,144
369,017
24,702,564

$           

14,496,313
4,999,300
2,405,861
1,585,072
23,486,546

Property, plant and equipment, net……………………………………………..
Goodwill…………………………………………………………...………………
Other assets……………………………………………………………..…………
Total assets…………………………………………………………………

1,150,257
898,334
280,648
27,031,803

$             

1,225,656
898,334
304,751
25,915,287

$           

LIABILITIES  AND S TOCKHOLDERS ' EQUITY

Current liabilities
Accounts payable………………………………………………………...……
Accrued expenses……………..……………………………………………………
Deferred revenue………………………………………………………………….
Common stock warrants……………………………………………………………
Total current liabilities……………………………………………………

$               

2,884,259
1,188,158
190,763
-
4,263,180

$             

3,458,013
740,333
1,570,234
3,260,000
9,028,580

Common stock warrants……………………………………………………………
Deferred income tax liability……………………………………………………………

Total liabilities……………………………………………………………

10,524,660
175,175
14,963,015

9,733,870
-
18,762,450

S tockholders' equity

Common stock ($.0001 par value, 100,000,000 shares authorized,
 49,019,433 and 43,061,635 issued and outstanding at December 31, 2010,
  and December 31, 2009, respectively)…………………………………………
Additional paid-in capital……………………………………………………….
Accumulated other comprehensive income……………………………………………
Accumulated deficit ………………………………………………………………
Total stockholders' equity ………..………………………………………
Total liabilities and stockholders' equity…………………………………

4,902
134,524,304
4,067
(122,464,485)
12,068,788
27,031,803

$             

4,306
101,417,677
-
(94,269,146)
7,152,837
25,915,287

$           

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

41 

 
 
 
 
 
 
 
 
 
 
 
               
               
                 
               
                    
               
               
             
                 
               
                    
                  
                    
                  
                 
                  
                    
               
                               
               
                 
               
               
               
                    
                              
               
             
                        
                      
             
           
                        
                              
           
            
               
               
SI G A  T E C H NOL O G I E S, I NC . 
C ONSOL I DA T E D ST A T E M E NT S OF  OPE R A T I ONS 

F or  the Y ear s E nded December  31, 2010, 2009 and 2008 

2010

2009

2008

Revenues 
Research and development………………………………..

$       

19,215,837

$       

13,811,858

$         

8,065,618

Operating expenses
Selling, general and administrative ………………………
Research and development …………………………………
Patent preparation fees……………………………………

T otal operating expenses…………………………………

8,130,669
22,658,959
1,148,597

31,938,225

7,533,167
17,423,453
734,165

25,690,785

4,608,089
11,612,892
581,548

16,802,529

Operating loss………………………………………………

(12,722,388)

(11,878,927)

(8,736,911)

Increase in fair value of common stock warrants…………… (15,957,068)

(7,522,865)

(1,509,756)

Other income, net…………..…………………………………
Net loss…………………………………………………………..

484,117
(28,195,339)

$      

1,437
(19,400,355)

$      

94,052
(10,152,615)

$      

Weighted average shares outstanding: basic and diluted

45,151,774

37,463,255

34,732,625

Net loss per share: basic and diluted

$                 

(0.62)

$                 

(0.52)

$                 

(0.29)

T he accompanying notes ar e an integr al par t of these financial statements. 

42 

 
 
 
 
 
 
 
 
 
 
 
           
           
           
         
         
         
           
              
              
         
         
         
        
        
          
        
          
          
              
                  
                
         
         
         
SI G A  T E C H NOL O G I E S, I NC . 
C ONSOL I DA T E D ST A T E M E NT S OF  C H A NG E S I N ST OC K H OL DE R S’  E QUI T Y  

F or  the Y ear s E nded December  31, 2010, 2009 and 2008 

Balance at December 31, 2007

33,937,549

$            

3,394

$         

67,230,987

$        

(62,006,176)

$                       
-

$           

5,228,205

Common Stock

Shares

Amount

Additional Paid -
in Capital

Accumulated 
Deficit

Accumulated 
Other 
Comprehensive 
Income (Loss)

Total 
Stockholders' 
Equity

Issuance of common stock upon exercise of stock

options and warrants
Stock based compensation
Fair value of warrants issued for financing commitment
Fair value of exercised common stock warrants
Net loss

1,446,171

144

3,186,220
1,041,293
422,331
275,783

Balance at December 31, 2008

35,383,720

3,538

72,156,614

4,952,576

2,725,339

495

273

7,419,737

18,565,147
2,141,772
1,715,765
(581,358)

43,061,635

4,306

101,417,677

Issuance of common stock upon exercise of stock

options and warrants

Net proceeds from the issuance of 2,725,339 shares

of common stock ($7.35 per share)

Stock based compensation
Fair value of exercised common stock warrants
Recognition of deferred transaction costs
Cumulative effect of accounting change
Net loss

Balance at December 31, 2009

Net loss
Change in net unrealized gain (loss) on short-term

investments
Comprehensive loss
Issuance of common stock upon exercise of stock

options and warrants
Stock based compensation
Fair value of exercised common stock warrants

Balance at December 31, 2010

49,019,443

$            

4,902

5,957,808

596

13,196,394
1,483,955
18,426,278
134,524,304

$       

$      

(122,464,485)

$                   

4,067

13,196,990
1,483,955
18,426,278
12,068,788

$         

(10,152,615)
(72,158,791)

(2,710,000)
(19,400,355)
(94,269,146)

(28,195,339)

3,186,364
1,041,293
422,331
275,783
(10,152,615)
1,361

7,420,232

18,565,420
2,141,772
1,715,765
(581,358)
(2,710,000)
(19,400,355)
7,152,837

(28,195,339)

4,067
(28,191,272)

-

-

4,067

T he accompanying notes ar e an integr al par t of these financial statements. 

43 

 
 
 
 
 
 
 
 
 
 
 
 
 
     
       
                 
             
             
             
             
                
                
                
                
          
          
     
              
           
          
                         
                    
       
                 
             
             
       
                 
           
           
             
             
             
             
               
               
            
            
          
          
     
              
         
          
                         
             
          
          
                     
                    
          
       
                 
           
           
             
             
           
           
     
 SI G A  T E C H NOL O G I E S, I NC . 
C ONSOL I DA T E D ST A T E M E NT S OF  C A SH  F L OW S 

F or  the Y ear s E nded December  31, 2010, 2009 and 2008 

Cash flows from operating activities:
Net loss……………………………………………………………………
Adjustments to reconcile net loss to net cash used in operating

activities

Depreciation…………………………………………………………..
Increase in fair value of warrants………………………..………..
Stock based compensation…………………………………………….
Changes in assets and liabilities:

   Accounts receivable……………………………………………….
   Prepaid expenses…………………………………………………..
   Other assets…………………………………………………………
   Deferred revenue………………………………………………….
   Accounts payable and accrued expenses………………………
   Deferred income taxes………………………………………….

   Net cash used in operating activities…………………………..

Cash flows from investing activities: 

2010

2009

2008

$   

(28,195,339)

$  

(19,400,355)

$ 

(10,152,615)

625,343
15,947,007
1,483,955

(596,283)
1,216,055
24,103
(1,379,471)
(125,929)
175,175
(10,825,384)

475,091
7,522,865
2,141,772

(446,253)
(192,465)
(20,895)
267,634
1,181,777

-

459,882
1,509,756
1,041,293

(973,119)
(1,262,492)
(22,090)
1,302,600
898,899

-

(8,470,829)

(7,197,886)

Capital expenditures……………………………………………………
(549,944)
Proceeds from maturity of short term investments..……………………… 31,250,000
(41,235,922)
Purchases of short term investments..………………………………
(10,535,866)
   Net cash used in investing activities…………………………..

(340,729)
-

(4,999,300)
(5,340,029)

(340,222)
-
-

(340,222)

Cash flows from financing activities:

Net proceeds from exercise of warrants and options……………..
Proceeds from issuance of securities ………………………...………
Deferred transaction costs……………………………………………
   Net cash provided by financing activities……………………..
Net (decrease) increase in cash and cash equivalents…………………
Cash and cash equivalents at beginning of period……………………
Cash and cash equivalents at end of period…………………………….

13,196,990
-
-
13,196,990
(8,164,260)
14,496,313
6,332,053

$       

7,420,232
18,565,420
-
25,985,652
12,174,794
2,321,519
14,496,313

$    

3,186,364
-
(159,027)
3,027,337
(4,510,771)
6,832,290
2,321,519

$     

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

44 

 
 
 
 
 
 
            
           
          
       
        
       
         
        
       
          
         
        
         
         
     
              
           
          
       
           
       
          
        
          
            
                  
                 
     
      
     
          
         
        
       
                  
                 
     
      
                 
     
      
        
       
        
       
                       
      
                     
                       
                      
        
       
      
       
       
      
     
       
        
       
SI G A  T E C H NOL O G I E S, I NC .  
NOT E S T O C ONSO L I DA T E D  F I NA NC I A L  ST A T E M E NT S 

1.  Organization and Basis of Presentation 

Description of Business 
SIGA  Technologies,  Inc.  (“SIGA”  or  the  “Company”)  is  a  bio-defense  company  engaged  in  the  discovery, 
development  and  commercialization  of  novel  products  for  the  prevention  and  treatment  of  serious  infectious 
diseases, including products for use in defense against biological warfare agents such as smallpox and arenaviruses.  
The Company’s antiviral programs are designed to prevent or limit the replication of viral pathogens.   

Basis of presentation 
The consolidated financial statements are presented in accordance with generally accepted accounting principles in 
the United States of America (“US GAAP”) and reflect the consolidated financial position, results of operations and 
cash flows for all periods presented.   

The consolidated financial statements have been prepared on a basis which assumes that the Company will continue 
as  a  going  concern  and  which  contemplates  the  realization  of  assets  and  the  satisfaction  of  liabilities  and 
commitments  in  the  normal  course  of  business.    The  Company  has  incurred  cumulative  net  losses  and  expects  to 
incur  additional  losses  to  perform  further  research  and  development  activities.    The  Company  does  not  have 
commercial products and  has limited capital resources.  Management’s plans  with regard to these  matters include 
continued development of its products as well as pursuing commercial opportunities and seeking additional capital 
through a combination of collaborative agreements, strategic alliances, research grants, and future equity and debt 
financing.  Although management will continue to pursue these plans, there is no assurance that the Company will 
be successful in obtaining future financing on commercially reasonable terms or that the Company  will be able to 
secure  funding  from  anticipated  government  contracts  and  grants.    Management  believes  that  existing  funds 
combined with cash flows primarily from continuing government grants and contracts will be sufficient to support 
its operations for at least the next twelve months. The success of the Company is dependent upon commercializing 
its  research  and  development  programs  and  the  Company’s  ability  to  obtain  adequate  future  financing.  If  the 
Company is unable to raise adequate capital and/or achieve profitable operations, future operations might need to be 
scaled back or discontinued.  The financial statements do not include any adjustments relating to the recoverability 
of the carrying amount of recorded assets and liabilities that might result from the outcome of these uncertainties.   

2.  Summary of Significant Accounting Policies 

Use of Estimates 
The consolidated financial statements and related disclosures are prepared in conformity with accounting principles 
generally  accepted  in  the  United  States  of  America.    Management  is  required  to  make  estimates  and  assumptions 
that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date 
of  the  financial  statements  and  revenue  and  expenses  during  the  period  reported.    These  estimates  include  the 
variables  used  in  the  calculation  of  fair  value  for  outstanding  options  and  warrants  granted  or  issued  by  the 
Company;  impairment  of  goodwill,    intangibles  and  long-lived  assets,  and  the  realization  of  deferred  tax  assets.  
Estimates  and  assumptions  are  reviewed  periodically  and  the  effects  of  revisions  are  reflected  in  the  financial 
statements in the period they are determined to be necessary.  Actual results could differ from these estimates. 

Cash Equivalents, Short-term Investments and Marketable Securities 
The  Company  considers  all  highly  liquid  investments  with  original  maturities  of  three  months  or  less  to  be  cash 
equivalents.    Highly  liquid  investments  with  maturities  greater  than  three  months  and  less  than  one  year  are 
classified  as  short-term  investments.  Such  investments  are  generally  money  market  funds,  bank  certificates  of 
deposit, and U.S. Treasury bills. 

The Company classifies  short-term investments and  marketable securities  with readily determinable fair  values as 
“available-for-sale”.    Investments  in  securities  that  are  classified  as  available-for-sale  are  measured  at  fair  market 
value  in  the  balance  sheet  and  unrealized  holding  gains  and  losses  on  investments  are  reported  as  a  separate 
component of stockholders’ equity until realized.   

45 

 
 
 
 
 
 
 
 
As of December 31, 2010 and 2009 the Company’s short-term investments consisted of approximately $15.0 million 
and  $5.0  million,  respectively,  of  available-for-sale  United  States  Treasury  Bills.  As  of  December  31,  2010  and 
2009, the unrealized gain relating to these investments was immaterial. 

Concentration of Credit Risk 
The Company has cash in bank accounts that exceed the Federal Deposit Insurance Corporation insured limits.  The 
Company has not experienced any losses on its cash accounts.  No allowance has been provided for potential credit 
losses  because  management  believes  that  any  such  losses  would  be  minimal.  The  Company’s  accounts  payable 
consist of trade payables due to creditors. 

Property, Plant and Equipment 
Property,  plant  and  equipment  are  stated  at  cost,  net  of  accumulated  depreciation.    Depreciation  is  provided  on  a 
straight-line method over the estimated useful lives of the various asset classes.  The estimated useful lives are as 
follows: 5 years for laboratory equipment; 3 years for computer equipment; and 7 years for furniture and fixtures. 
Leasehold improvements are amortized over the shorter of the estimated useful lives of the assets or the lease term.  
Maintenance, repairs and minor replacements are charged to expense as incurred.   

Revenue Recognition 
Revenue is recognized when persuasive evidence of an arrangement exists, delivery has occurred, the fee is fixed or 
determinable,  collectability  is  reasonably  assured,  contractual  obligations  have  been  satisfied  and  title  and  risk  of 
loss  have  been  transferred  to  the  customer.    The  Company  recognizes  revenue  from  non-refundable  up-front 
payments, not tied to achieving a specific performance milestone, over the period which the Company is obligated to 
perform services or based on the percentage of costs incurred to date, estimated costs to complete and total expected 
contract  revenue.    Payments  for  development  activities  are  recognized  as  revenue  as  earned,  over  the  period  of 
effort.    Funding  for  the  acquisition  of  capital  assets  under  cost-plus-fee  grants  and  contracts  is  evaluated  for 
appropriate  recognition  as  a  reduction  to  the  cost  of  the  asset,  a  financing  arrangement,  or  revenue  based  on  the 
specific terms of the related grant or contract.  Substantive at-risk milestone payments, which are based on achieving 
a specific performance milestone, are recognized as revenue when the milestone is achieved and the related payment 
is  due,  providing  there  is  no  future  service  obligation  associated  with  that  milestone.    In  situations  in  which  the 
Company receives payment in advance of the performance of services, such amounts are deferred and recognized as 
revenue as the related services are performed. 

For  the  years  ended  December  31,  2010,  2009,  and  2008,  revenues  from  National  Institutes  of  Health  (“NIH”) 
contracts and grants was 91%, 100% and 99.5%, respectively, of total revenues recognized by the Company. 

Accounts Receivable 
Accounts receivable are recorded net of provisions for doubtful accounts.   At December 31, 2010 and 2009, 87% 
and  100%,  respectively,  of  accounts  receivables  represented  receivables  from  NIH.  An  allowance  for  doubtful 
accounts is based on specific analysis of the receivables.  At December 31, 2009, 2008, and 2007, the Company had 
no allowance for doubtful accounts. 

Research and Development 
Research and development expenses include costs directly attributable to the conduct of research and development 
programs,  including  employee  related  costs,  materials,  supplies,  depreciation  on  and  maintenance  of  research 
equipment, the cost of services provided by outside contractors, including services related to the Company’s clinical 
trials and facility costs, such as rent, utilities, and general support services. All costs associated with research and 
development are expensed as incurred.  Costs related to the acquisition of technology rights, for which development 
work is still in process, and that have no alternative future uses, are expensed as incurred.  

Goodwill  
The  Company  evaluates  goodwill  for  impairment  at  least  annually  or  as  circumstances  warrant.    The  impairment 
review process compares the  fair value of the reporting  unit in  which  goodwill resides to its carrying  value.  The 
Company  operates  as  one  business  and  one  reporting  unit.    Therefore,  the  goodwill  impairment  analysis  is 
performed on the basis of the Company as a whole, using the market capitalization of the Company as an estimate of 
its fair value.     

46 

 
 
 
 
 
Share-based Compensation 
Stock-based  compensation  expense  for  all  share-based  payment  awards  made  to  employees  and  directors  is 
determined based on estimated grant-date fair value using an option pricing model.  The value of the portion of the 
award that is ultimately expected to vest is recorded as expense over the requisite service periods in the Company’s 
consolidated statement of operations.   

These compensation costs are recognized net of an estimated forfeiture rate over the requisite service periods of the 
awards.    Forfeitures  are  estimated  on  the  date  of  the  respective  grant  and  revised  if  actual  or  expected  forfeiture 
activity differ materially from original estimates.   

Income Taxes 
The  Company  recognizes  income  taxes  utilizing  the  asset  and  liability  method  of  accounting  for  income  taxes.  
Under  this  method,  deferred  income  taxes  are  recorded  for  temporary  differences  between  financial  statement 
carrying amounts and the tax basis of assets and liabilities at enacted tax rates expected to be in effect for the years 
in which the differences are expected to reverse.  A valuation allowance is established if it is more likely than not 
that some or the entire deferred tax asset will not be realized.  

The Company applies the applicable authoritative guidance which prescribes a comprehensive model for the manner 
in which a company should recognize, measure, present and disclose in its financial statements all material uncertain 
tax positions that the Company has taken or expects to take on a tax return.   

The  Company  has  no  tax  positions  for  which  it  is  reasonably  possible  that  the  total  amounts  of  unrecognized  tax 
benefits will significantly increase or decrease within twelve months from December 31, 2010.  As of December 31, 
2010, the only tax jurisdiction to which the Company is subject is the United States. Open tax years relate to years in 
which unused net operating losses were generated. Thus, the Company’s open tax years extend back to 1996. In the 
event that the Company concludes that it is subject to interest and/or penalties arising from uncertain tax positions, 
the Company will present interest and penalties as a component of income taxes. No amounts of interest or penalties 
were recognized in the Company’s consolidated financial statements for each of the years in the three-year period 
ended December 31, 2010. 

Net Loss per Share 
The  Company  computes,  presents  and  discloses  earnings  per  share  in  accordance  with  the  authoritative  guidance 
which  specifies  the  computation,  presentation  and  disclosure  requirements  for  earnings  per  share  of  entities  with 
publicly held common stock or potential common stock.  The objective of basic EPS is to measure the performance 
of an entity over the reporting period by dividing income (loss) by the weighted average shares outstanding.  The 
objective of diluted EPS is consistent with that of basic EPS, that is to measure the performance of an entity over the 
reporting period, while giving effect to all dilutive potential common shares that were outstanding during the period.  
The  calculation  of  diluted  EPS  is  similar  to  basic  EPS  except  the  denominator  is  increased  for  the  conversion  of 
potential common shares unless the impact of such common shares is anti-dilutive.  

The Company incurred losses for the years ended December 31, 2010, 2009, and 2008, and as a result, certain equity 
instruments  are  excluded  from  the  calculation  of  diluted  loss  per  share.    At  December  31, 2010,  2009,  and  2008, 
outstanding  options  to  purchase  4,719,628,  6,249,917  and  7,696,054  shares,  respectively,  of  the  Company’s 
common stock with exercise prices ranging from $0.94 to $9.32 have been excluded from the computation of diluted 
loss  per  share  as  the  effect  of  such  shares  is  anti-dilutive.    At  December  31,  2010,  2009,  and  2008,  outstanding 
warrants  to  purchase  3,155,537,  5,011,141  and  7,456,406  shares,  respectively,  of  the  Company’s  common  stock, 
with exercise prices ranging from $1.18 to $4.80 have been excluded from the computation of diluted loss per share 
as they are anti-dilutive.  

Fair Value of Financial Instruments 
The  carrying  value  of  cash  and  cash  equivalents,  accounts  payable  and  accrued  expenses  approximates  fair  value 
due to the relatively short maturity of these instruments.  Common stock warrants which are classified as liabilities 
are recorded at their fair market value as of each reporting period. 

The Company applies the applicable authoritative guidance for financial assets and liabilities that are required to be 
measured at fair value, and non-financial assets and liabilities that are not required to be measured at fair value on a 
recurring basis.   

47 

 
 
 
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  to  determine  the  fair 
value of certain common stock warrants on a recurring basis and classify such warrants in Level 2. The Company 
utilizes  the  Black-Scholes  model  consisting  of  the  following  variables:  (i)  the  closing  price  of  SIGA’s  common 
stock;  (ii)  the  expected  remaining  life  of  the  warrant;  (iii)  the  expected  volatility  using  a  weighted-average  of 
historical volatilities from a combination of SIGA and comparable companies; and (iv) the risk-free market rate.  At 
December 31, 2010 and December 31, 2009, the fair value of such warrants was as follows: 

2010

2009

Common stock warrants classified as current liabilities…………………
Common stock warrants classified as long-term liabilities…………….

Total…………………………………………………………………..

$                          
-

10,524,660
10,524,660

$              

$                

$              

3,260,000
9,733,870
12,993,870

As of December 31, 2010, the Company held approximately $15.0 million in United States Treasury Bills, classified 
as a Level 1 security. SIGA does not hold any Level 3 securities. 

Segment Information 
The Company is  managed and operated as one business. The entire business is  managed by a single  management 
team that reports to the chief executive officer. The Company does not operate separate lines of business or separate 
business entities with respect to any of its product candidates. Accordingly, the Company does not prepare discrete 
financial information with respect to separate product areas or by location and only has one reportable segment. 

Cumulative Effect of Changes in Accounting Principles 
On January 1, 2009, the Company adopted the provisions of the authoritative guidance for derivatives and hedging.  
The cumulative effect of the  change  in accounting principle recorded by the  Company in connection  with certain 
warrants  to  acquire  shares  of  the  Company’s  common  stock,  was  recognized  as  an  adjustment  to  the  opening 
balance of accumulated deficit as summarized in the following table: 

Common stock warrants
Accumulated deficit

As reported on
December 31, 2008
$                        
-

(72,158,791)

As adjusted on 
January 1, 2009

$               

2,710,000
(74,868,791)

Effect of change
in accounting

$          

2,710,000
(2,710,000)

Recent Accounting Pronouncements 
In  October  2009,  the  FASB  issued  a  new  accounting  standard  updating  existing  multiple-element  arrangement 
guidance.  The  revised  guidance  requires  companies  to  allocate  revenue  in  arrangements  involving  multiple 
deliverables  based  on  the  estimated  selling  price  of  each  deliverable,  even  if  such  deliverables  are  not  sold 
separately by either company itself or other vendors. The revised guidance also significantly expands the disclosures 
required  for  multiple-element  revenue  arrangements.  The  revised  guidance  will  be  effective  for  the  first  annual 
period  beginning  on  or  after  June  15,  2010. The  Company  adopted  the  provisions  of  this  guidance  on  January  1, 
2010, which had no impact on the consolidated financial statements.  

In January 2010, the FASB issued updated accounting guidance for fair value measurements.  This update provides 
amendments that require new disclosure as follows: (1) A reporting entity should disclose separately the amounts of 
significant  transfers  in  and  out  of  Level  1  and  Level  2  fair-value  measurements  and  describe  the  reasons  for  the 
transfers.  (2)  In  the  reconciliation  for  fair  value  measurements  using  significant  unobservable  inputs  (Level  3),  a 
reporting entity should present separately information about purchases, sales, issuances, and settlements (that is, on a 

48 

 
 
 
 
 
 
 
 
 
 
  
                
                  
            
              
           
gross  basis  rather  than  as  one  net  number).  This  update  provides  amendments  that  clarify  existing  disclosures  as 
follows:  (1)  A  reporting  entity  should  provide  fair-value  measurement  disclosures  for  each  class  of  assets  and 
liabilities. A class is often a subset of assets or liabilities within a line item in the statement of financial position. A 
reporting entity needs to use judgment in determining the appropriate classes of assets and liabilities. (2) A reporting 
entity  should  provide  disclosures  about  the  valuation  techniques  and  inputs  used  to  measure  fair  value  for  both 
recurring and nonrecurring fair value measurements. Those disclosures are required for fair value measurements that 
fall  in  either  Level  2  or  Level  3.  The  new  disclosures  and  clarifications  of  existing  disclosures  are  effective  for 
interim and annual reporting periods beginning after December 15, 2009, except for the disclosures about purchases, 
sales,  issuances,  and  settlements  in  the  roll-forward  of  activity  in  Level  3  fair-value  measurements.  Those 
disclosures are effective  for fiscal  years beginning after December 15, 2010, and for interim periods  within  those 
fiscal  years.  The  Company  has  adopted  the  amendments  effective  for  interim  and  annual  periods  beginning  after 
December  15,  2009.    The  adoption  did  not  have  a  material  impact  on  the  consolidated  financial  statements.  The 
Company has not yet adopted the amendments effective for periods beginning after December 15, 2010.  SIGA does 
not expect the preceding amendments to have a material impact on its consolidated financial statements.   

3.  Research Agreements 

The Company obtains funding in the form of grants or contracts (collectively, the “Grants”) from various agencies 
of the U.S. Government to support its research and development activities.  As of December 31, 2010, the Company 
has  five  active  Grants  with  varying  expiration  dates  though  August  2013  that  provide  for  aggregate  research  and 
development funding for specific projects of approximately $99.1 million.  At December 31, 2010, the Company has 
recognized $34.4 million of revenue from these grants.  As of December 31, 2010, approximately $64.7 million is 
available to support future research and development activities.  The Grants contain customary terms and conditions 
including the U.S. Government’s right to terminate a grant for convenience.   

4.  Stockholders’ Equity 

On  December  31,  2010,  the  Company's  authorized  share  capital  consisted  of  110,000,000  shares,  of  which 
100,000,000 are designated common shares and 10,000,000 are designated preferred shares. The Company's Board 
of Directors is authorized to issue preferred shares in series with rights, privileges and qualifications of each series 
determined by the Board. 

2009 Financing 
On December 9, 2009, the Company entered into Subscription Agreements for the sale of 2,725,339 shares of the 
Company’s common stock, par value $0.0001 per share, at a purchase price of $7.35 per share. Net proceeds to the 
Company were approximately $18.6 million.  

2008 Financing 
On June 19, 2008, SIGA 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 SIGA’s 
discretion  or  at  M&F’s  option,  up  to  $8  million  in  exchange  for  (i)  SIGA  common  stock    and  (ii)  warrants  to 
purchase  40%  of  the  number  of  SIGA  shares  acquired  by  M&F.    On  June  18,  2010,  M&F  notified  SIGA  of  its 
intention to exercise its right to invest $5.5 million, the remaining amount available under the Letter Agreement 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 SIGA in exchange for the issuance of (i) 1,797,386 shares of common stock and 
(ii)  warrants  to  purchase  718,954  shares  of  SIGA  common  stock  at  an  exercise  price  of  $3.519  per  share.      The 
number of shares issuable pursuant to the warrants granted under the Letter Agreement, as well as the exercise price 
of those warrants, may be subject to adjustment as a result of the effect of future equity issuances on certain anti-
dilution provisions in the related warrant agreements. 

In 2009, SIGA issued to M&F 816,993 shares of common stock and 326,797 warrants to acquire common stock in 
exchange for total proceeds of $2.5 million.  The warrants are exercisable for a term of four years from issuance for 
an  exercise  price  of  $3.519  per  share.    The  number  of  shares  issuable  pursuant  to  the  warrants  granted  under  the 

49 

 
 
 
 
 
 
 
Letter  Agreement, as  well as  the exercise price of those  warrants,  may be subject to adjustment as a result of  the 
effect of future equity issuances on certain anti-dilution provisions in the warrant agreements.   

In addition and 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  SIGA  common  stock,  initially  exercisable  at  $3.06  (the 
“Commitment  Warrants”).  The  number  of  shares  issuable  pursuant  to  the  warrants  granted  under  the  Letter 
Agreement, as well as the exercise price of those warrants, may be subject to adjustment as a result of the effect of 
future equity issuances on certain anti-dilution provisions in the Letter Agreement.  The Commitment Warrants are 
exercisable until June 19, 2012.  The Company initially recorded all costs related to the Letter Agreement, including 
the fair value of the Commitment Warrants, as deferred transaction costs. Upon the issuance of common stock and 
warrants to purchase shares of common stock on April 30, 2009, the Company recorded a reduction in its additional 
paid-in capital for the effect of the related transaction costs.   

The  Company  determined  that  the  warrants  potentially  issuable  to  M&F  under  the  Letter  Agreement  were  not 
“indexed to the Company’s own stock” prior to their issuance in accordance with the authoritative guidance.  As a 
result, warrants potentially issuable under the Letter Agreement met the definition of a derivative and were recorded 
as a liability on the Company’s balance sheet (also refer to Cumulative Effect of Changes in Accounting Principle in 
Note 2). Management determined that, upon issuance, the warrants do not meet the definition of a derivative and, 
consequently,  the  warrants  are  reflected  as  equity  at  December  31,  2010.  The  Company  recorded  a  loss  of  $1.1 
million  for  the  year  ended  December  31,  2010  representing  the  increase  in  the  fair  value  of  the  warrants  from 
January 1, 2010 through the date of issuance. 

2006 and 2005 Placements 
In 2006 and 2005 the Company sold shares of its common stock and warrants to purchase shares of common stock.  
In  2006,  the  Company  issued  1,000,000  warrants  with  an  initial  exercise  price  of  $4.99  per  share  (the  “2006 
Warrants”).  In 2005, the Company issued 1,000,000 warrants with an initial exercise price of $1.18 per share (the 
“2005 Warrants”).  As of December 31, 2010, all of the 2005 Warrants have been exercised and issued.  The 2006 
Warrants  may  be  exercised  through  and  including  October  19,  2013.    Due  to  the  effect  of  certain  anti-dilution 
provisions  in  such  warrants,  the  Company  adjusted  the  number  of  shares  issuable  under  the  2006  Warrants  by 
652,038  through  December  31,  2010.    The  exercise  prices  of  the  warrants  issued  in  these  placements  were  also 
adjusted.  At December 31, 2010, 915,568 of the 2006 Warrants at an exercise price of $2.92 were outstanding.  The 
number of shares issuable pursuant to the Warrants may be subject to further adjustment as a result of the effect of 
future equity issuances on anti-dilution provisions in the related warrant agreements.     

The  Company  accounted  for  the  2006  and  2005  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 be reported in earnings or loss as long as the derivative contracts are classified as assets or 
liabilities.   At December 31, 2010, the fair  market value of the 2006 Warrants  was $10.5  million.  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  estimates  the  expected  volatility  using  a  combination  of  the 
Company’s historical volatility and the volatility of a group of comparable companies. For the year ended December 
31, 2010, the Company recorded a loss of $14.9 million as a result of a net increase in the 2005 and 2006 Warrants. 

5.  Stock Option Plan and Warrants  

In May 2010, the Company adopted its 2010 Incentive Stock Option Plan (the “2010 Plan”) to supersede its 1996 
Incentive and Non-Qualified Stock Option Plan (the “1996 Plan”). The 2010 Plan provides for the granting of up to 
2,000,000 shares of the Company’s common stock to employees, consultants and outside directors of the Company. 
The awards that may be provided under the 2010 Plan include: Incentive Stock Options (“ISOs”) and Nonqualified 
Stock Options; shares of Restricted Stock; and shares of Unrestricted Stock.   

Stock  option  awards  provide  holders  the  right  to  purchase  shares  of  Common  Stock  at  prices  determined  by  the 
Compensation  Committee  but  must  have  an  exercise  price  equal  to  or  in  excess  of  the  fair  market  value  of  the 
Company’s common stock at the date of grant.  The vesting period for options granted under the 2010 Plan, except 
those  granted  to  outside  directors,  is  determined  by  the  Compensation  Committee  of  the  Board  of  Directors.  The 

50 

 
 
  
 
 
 
 
Compensation Committee also determines the expiration date of each Stock Option, however, no ISO is exercisable 
more than ten years after the date of grant.  The maximum term of options awarded under the 2010 Plan is ten years. 

During  1996,  the  Company  established  its  1996  Plan  which,  as  amended,  provided  for  the  granting  of  up  to 
11,000,000  shares  of  the  Company’s  common  stock  to  employees,  consultants  and  outside  directors  of  the 
Company.    The  exercise  period  for  options  granted  under  the  Plan,  except  those  granted  to  outside  directors,  is 
determined  by  a  committee  of  the  Board  of  Directors.    Stock  options  granted  to  outside  directors  pursuant  to  the 
Plan must have an exercise price equal to or in excess of the fair market value of the Company’s common stock at 
the date of grant. There will be no future awards from the 1996 Plan. 

The fair value of option grants were estimated at the date of grant during the years ended December 31, 2010, 2009, 
and 2008 based upon the following weighted average assumptions: 

Expected volatility
Expected dividend yield
Risk-free interest rate
Expected life

2010

2009

2008

80.21%
0.00%
2.16%
5 years

81.40%
0.00%
2.21%
5 years

68.50%
0.00%
2.79%
5 years

Expected volatility has been estimated using a combination of the Company’s historical volatility and the historical 
volatility  of  a  group  of  comparable  companies,  both  using  historical  periods  equivalent  to  the  options’  expected 
lives.    The  expected  dividend  yield  assumption  is  based  on  the  Company’s  intent  not  to  issue  a  dividend  in  the 
foreseeable future.  The  risk-free interest rate assumption is based upon observed interest rates  for securities  with 
maturities  approximating  the  options’  expected  lives.    The  expected  life  was  estimated  based  on  historical 
experience and expectation of employee exercise behavior in the future giving consideration to the contractual terms 
of the award. 

For  the  years  ended  December  31,  2010,  2009,  and  2008,  the  Company  recorded  compensation  expense  of  $1.5 
million, $2.1 million and $1.0 million, respectively.  The total fair value of options vested during each year was $1.5 
million,  $1.4  million  and  $595,000  for  2010,  2009  and  2008,  respectively.    The  weighted-average  grant-date  fair 
value of stock options granted was $4.95, $4.29 and $1.72 for 2010, 2009 and 2008, respectively. 

A summary of the stock option activity under the 2010 and 1996 Plans is as follows: 

Outstanding at January 1, 2010

Granted
Forfeited
Exercised

 Weighted 
Average 
Remaining Life 
(in years) 

 Aggregate 
Intrinsic Value 
(in thousands) 

 Number of 
Options 

 Weighted 
Average Exercise 
Price 

6,124,917
179,500
(12,167)
(1,572,622)

$                   

2.76
7.62
7.18
2.44

Outstanding at December 31, 2010

4,719,628

$                   

3.02

Vested and expected to vest at December 31, 2010

4,382,249

$                   

2.83

Exercisable at December 31, 2010

3,841,795

$                   

2.77

4.26

3.95

3.44

$       

51,803,991

$       

48,968,913

$       

43,139,846

As of December 31, 2010, $1.2 million of total remaining unrecognized stock-based compensation cost related to 
stock  options  is  expected  to  be  recognized  over  the  weighted-average  remaining  requisite  service  period  of  1.42 
years.  The total intrinsic value of stock options exercised was $19.6 million, $7.0 million and $0.9 million for the 
years ended December 31, 2010, 2009 and 2008, respectively.  The intrinsic value represents the amount by which 
the market price of the underlying stock exceeds the exercise price of an option.   

51 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
            
               
                     
                
                     
           
                     
            
                     
            
                     
            
                     
As of December 31, 2009, options awarded outside of the plan included 125,000 options granted in May 2000 to the 
Company’s Chief Scientific Officer, with an exercise price of $2.00 per share. These options were exercised in 2010 
for total proceeds of approximately $250,000.   

As of December 31, 2010 and 2009, 500,000 of the Company’s outstanding options, respectively,  were subject to 
specific  performance  conditions  which  included  revenue  thresholds  and  regulatory  approval  of  our  lead  drug 
candidate. These options are not exercisable at December 31, 2010. 

The following tables summarize information about warrants outstanding at December 31, 2010: 

Outstanding at January 1, 2010

Granted
Exercised
Canceled / Expired

Outstanding at December 31, 2010

 Number of 
Warrants 

 Weighted Average 
Exercise Price 

5,011,141
849,742
(2,702,687)
(2,659)
3,155,537

$                         

3.17
3.32
2.10
1.83
2.16

6.  Related Parties 

On December 1, 2009 the Company entered into an Office Service Agreement with an affiliate of M&F to occupy 
office space for approximately $8,000 per month. The agreement is cancelable upon 60 days notice by SIGA or the 
affiliate. 

A member of the Company’s Board of Directors is a member of the Company’s outside counsel.  During the years 
ended  December  31,  2010,  2009,  and  2008,  the  Company  incurred  costs  of  $2.7  million,  $1.8  million  and  $1.0 
million, respectively, related to services provided by the outside counsel.  On December 31, 2010, the Company’s 
outstanding payables included $485,000 payable to the outside counsel.  

7.  Property, Plant and Equipment 

Property, plant and equipment consisted of the following at December 31, 2010 and 2009: 

2010

2009

$             

$             

Laboratory equipment
Leasehold improvements
Computer equipment
Furniture and fixtures

Less - accumulated depreciation

Property, plant and equipment, net

2,573,178
3,055,100
297,500
310,898
6,236,676
(5,086,419)
1,150,257

$             

$             

2,301,312
2,868,849
229,209
310,898
5,710,268
(4,484,612)
1,225,656

52 

 
 
 
 
 
 
 
 
 
 
 
                  
                     
                           
                
                           
                       
                           
                  
                           
               
               
                  
                  
                  
                  
               
               
             
             
8.  Accrued Expenses 

Accrued expenses consisted of the following at December 31, 2010 and 2009: 

Vacation
Bonuses
Legal
Other

Accrued expenses

9.  Income Taxes 

2010
 $               207,717 
                    50,000 
590,000
340,441
 $            1,188,158 

2009
 $               159,591 
                  194,700 
55,000
331,042
 $               740,333 

At December 31, 2010 and 2009, the Company’s deferred tax assets and liabilities are comprised of the following: 

Deferred income tax assets:
Net op erating losses
Deferred research and development costs
Amortization of intangible assets
Depreciation
Other

2010
$                  

25,340
5,644
1,274
828
80
33,166

2009
$                  

20,302
6,613
571
866
-
28,352

Less valuation allowance
Deferred income tax assets

(33,166)
-

(28,352)
-

Deferred income tax liabilities:
Amortization of goodwill
Deferred income tax liabilities, net

$                       

175
175

-
$                        
-

The  Company  has  incurred  losses  since  inception,  which  have  generated  net  operating  loss  carryforwards  of 
approximately $68.7 million at December 31, 2010 for federal and state income tax purposes.  These carryforwards 
are available to offset future taxable income and expire beginning in 2011 for federal income tax purposes.  As a 
result of a previous change in stock ownership, the annual utilization of the net operating loss carryforwards from 
years  prior  to  2004  may  be  subject  to  limitation.    In  consideration  of  the  Company’s  accumulated  losses  and  the 
uncertainty  of  its  ability  to  utilize  this  deferred  tax  asset  in  the  future,  the  Company  has  recorded  a  valuation 
allowance of an equal amount on such date to fully offset the deferred tax asset. 

The deferred tax assets for the respective periods were assessed for recoverability and, where applicable, a valuation 
allowance was recorded to reduce the total deferred tax asset to an amount that will, more likely than not, be realized 
in the future. The net change in the total valuation allowance for the years ended December 31, 2010 and 2009 was 
an increase of $4.8 million and a increase of $3.8 million, respectively. The increase in the valuation allowance as of 
December 31, 2010 and 2009 relates primarily to net operating loss carryforwards. 

The Company’s effective tax rate differs from the U.S. Federal Statutory income tax rate of 34% as follows: 

2010

2009

Statutory federal income tax rate
State tax benefit, net of federal taxes
Loss from fair value of common warrants
Other
Valuation allowance on deferred tax assets

Effective tax rate

-34.00%
-2.52%
13.18%
3.76%
19.58%
0.00%

-34.00%
-2.30%
19.36%
1.81%
14.45%
-0.68%

53 

 
 
 
 
 
 
 
                      
                      
                      
                         
                         
                         
                           
                          
                    
                    
                   
                   
                          
                          
                         
                          
For the years ended December 31, 2010 and 2009, the Company’s effective tax rate differs from the federal statutory 
rate principally due to net operating losses and other differences for which no benefit was recorded, state taxes and 
other permanent differences.  

Other Income, net, for the  year ended December 31, 2010, includes $648,000 awarded to the Company  under the 
U.S. Government's Qualified Discovery Tax Credit program offset by a $175,000 deferred tax provision associated 
with a temporary difference generated from the amortization of goodwill for tax purposes. 

10.  Commitments and Contingencies 

Operating lease commitments 

The  Company  leases  certain  facilities  and  office  space  under  operating  leases.    Certain  leases  contain  renewal 
provisions and generally require us to pay utilities, insurance, taxes and other operating expenses.  Future minimum 
rental  commitments  under  non-cancelable  operating  leases  as  of  December  31,  2010  consist  of  $573,077  due  in 
2011.   

Other 

In  December  2006,  PharmAthene,  Inc.  (“PharmAthene”)  filed  an  action  against  us  in  the  Delaware  Court  of 
Chancery  captioned  PharmAthene,  Inc.  v.  SIGA  Technologies,  Inc.,  C.A.  No.  2627-N.  In  its  amended  complaint, 
PharmAthene asks the Court to demand SIGA enter into a license agreement with PharmAthene with respect to ST-
246®, as well as issue a declaration that we are obliged to execute such a license agreement, and award damages 
resulting from our supposed breach of that obligation. PharmAthene also alleges that we breached an obligation to 
negotiate  such  a  license  agreement  in  good  faith,  as  well  as  seeks  damages  for  promissory  estoppel  and  unjust 
enrichment based on supposed information, capital and assistance that PharmAthene allegedly provided to us during 
the negotiation process. In January 2008, the Court of Chancery denied our motion to dismiss the original complaint 
and discovery proceeded. In May 2009, PharmAthene amended its complaint with respect to its claim for breach of 
an  obligation  to  negotiate  in  good  faith,  and  we  filed  our  answer  to  the  amended  complaint  and  counterclaim 
denying the new claim and asserting defenses. 

PharmAthene has submitted an expert report asserting several alternative theories of damages, in a wide range of up 
to one billion dollars. We believe that the expert’s damages analyses are flawed and methodologically unsound. The 
Company  continues  to  believe  that  we  have  meritorious  defenses  to  the  claims.  The  Company  filed  a  partial 
summary  judgment  motion  on  March  19,  2010,  regarding  certain  aspects  of  PharmAthene’s  claims  and  damage 
assessments.  On November 23, 2010, the Court of Chancery denied the motion for partial summary judgment.  A 
trial was held before Vice Chancellor Donald F. Parsons, Jr. on January 3 -7, 10-12, 18-19 and 21, 2011.  The Court 
reserved  decision,  and  the  parties  are  currently  preparing  post-trial  briefs.    Closing  arguments  are  scheduled  for 
April 2011.  It is not currently possible to estimate a range of loss, if any. 

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 other dispute or litigation pending that could have, individually or 
in the aggregate, a material adverse effect on its financial position, results of operations or cash flows. 

54 

 
 
 
 
 
 
 
 
 
11.  Financial Information By Quarter (Unaudited)  

2010

March 31

June 30

S eptember 30 December 31

Full Year

Three Months Ended

$             

(in thousands, except for per share data)
$             

$             

$             

$           

Revenues
Selling, general & administrative
Research and development
Patent preparation fees
Operating loss
Net income (loss)
Net loss per share: basic and diluted
Market price range for common stock

High
Low

2009

Revenues
Selling, general & administrative
Research and development
Patent preparation fees
Operating loss
Net income (loss)
Net loss per share: basic and diluted
Market price range for common stock

$              

$              

$              

$              

$              

$               
$               

7.46
5.51

$               
$               

7.80
6.15

$               
$               

9.10
7.32

$             
$               

14.10
7.98

$             
$               

14.10
5.51

March 31

June 30

S eptember 30 December 31

Full Year

Three Months Ended

$             

(in thousands, except for per share data)
$             

$             

$             

$           

6,632
1,389
7,420
235
(2,412)
(4,430)
(0.10)

3,922
1,522
4,828
191
(2,619)
(1,190)
(0.03)

3,062
2,539
4,482
288
(4,246)
(13,577)
(0.29)

3,955
2,149
5,185
350
(3,730)
2,451
0.08

19,216
8,131
22,659
1,149
(12,722)
(28,195)
(0.62)

13,812
7,533
17,423
734
(11,879)
(19,400)
(0.52)

4,447
2,234
4,930
306
(3,023)
(5,251)
(0.12)

4,009
1,802
4,713
84
(2,590)
(12,581)
(0.34)

5,075
1,969
5,827
320
(3,041)
(4,937)
(0.11)

1,926
2,060
2,697
109
(2,940)
(8,080)
(0.23)

$              

$              

$              

$               

$              

High
Low

$               
$               

5.86
3.15

$               
$               

8.88
4.73

$               
$               

8.63
6.25

$             
$               

10.09
4.83

$             
$               

10.09
3.15

55 

 
 
 
 
 
 
 
 
 
 
 
 
               
               
               
               
               
               
               
               
               
             
                  
                  
                  
                  
               
              
              
              
              
            
              
              
              
            
            
               
               
               
               
               
               
               
               
               
             
                  
                    
                  
                  
                  
              
              
              
              
            
              
            
              
               
            
I tem 9. 

Changes in and Disagreements with Accountants on Accounting and Financial Disclosure 

None. 

Item 9A.  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 December 31, 2010. 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 December 31, 2010 at a reasonable level of assurance.  

Management’s Report on Internal Control over Financial Reporting 

Management  is  responsible  for  establishing  and  maintaining  adequate  internal  control  over  financial 
reporting, as such term is defined in Rule 13a-15(f) or Rule 15d-15(f) of the Securities and Exchange Act of 1934. 
Internal  control  over  financial  reporting  is  a  process  designed  to  provide  reasonable  assurance  regarding  the 
reliability  of  financial  reporting  and  the  preparation  of  financial  statements  prepared  for  external  purposes  in 
accordance  with  generally  accepted  accounting  principles.  Our  internal  control  over  financial  reporting  includes 
those policies and procedures that: 

a.  pertain  to  the  maintenance  of  records  that,  in  reasonable  detail,  accurately  and  fairly  reflect  the 

transactions and disposition of the Company’s assets; 

b.  provide reasonable assurance that transactions are recorded as necessary to permit preparation of 
financial statements in accordance with generally accepted accounting principles, and that receipts 
and  expenditures  of  the  Company  are  being  made  only  in  accordance  with  authorizations  of 
management and the directors of the Company; and 

c.  provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, 
use  or  disposition  of  the  Company's  assets  that  could  have  a  material  effect  on  the  financial 
statements.  

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

Our  management,  including  our  Chief  Executive  Officer  and  Chief  Financial  Officer,  conducted  an 
evaluation  of  the  effectiveness  of  the  Company’s  internal  control  over  financial  reporting  as  of  December  31, 
2010.  In  making  this  evaluation,  management  used  the  criteria  set  forth  by  the  Committee  of  Sponsoring 
Organizations of the Treadway Commission (the  “COSO”) in  Internal Control-Integrated Framework.   Based on 
this evaluation using the COSO criteria, management concluded that the Company's internal control over financial 
reporting was effective as of December 31, 2010.  

The effectiveness of our internal control over financial reporting as of December 31, 2010 has been audited 
by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which 
appears herein.  

56 

 
 
 
 
Remediation of Material Weakness 

In  our  restated  Annual  Report  on  Form  10-K/A  for  the  year  ended  December  31,  2009,  management 
concluded that, as of December 31, 2009, our internal control over financial reporting was not effective to provide 
reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for 
external reporting purposes in accordance with GAAP due to the following material weakness: 

We  did  not  maintain  effective  controls  to  ensure  the  completeness  and  accuracy  of  non-cash 
charges  resulting  from  required  adjustments  to  certain  outstanding  warrants  (the  “Warrants”).    These 
adjustments were triggered by the application of certain anti-dilution provisions included in the agreements 
governing  the  Warrants  and  resulted  in  the  issuance  of  additional  warrants  to  acquire  shares  of  common 
stock and additional non-cash charges which were not recorded in the appropriate accounting periods.  This 
material  weakness  resulted  in  a  material  misstatement  of  our  liabilities,  non-cash  expense  relating  to  the 
changes  in  fair  value  of  common  stock  warrants  and  accumulated  deficit  accounts  and  related  financial 
disclosures that was not prevented and detected on a timely basis.   As a result, the Company’s consolidated 
financial  statements  were  restated  for  the  years  ended  December  31,  2009  and  2008  and  each  of  the 
quarterly periods from June 30, 2008 through June 30, 2010.   

A  material  weakness  is  a  deficiency,  or  a  combination  of  deficiencies,  in  internal  control  over  financial 
reporting, such that there is a reasonable possibility that a material misstatement of the Company’s annual or interim 
financial statements will not be prevented or detected on a timely basis. 

Subsequent  to  the  identification  of  the  material  weakness,  management  developed  a  remediation  plan  to 
address  the  material  weakness.    The  remediation  plan  consisted  of  redesigning  quarterly  procedures  to  enhance 
management’s  identification,  capture,  review,  approval  and  recording  of  contractual  terms  included  in  active 
contracts or arrangements.   

During the quarters ended September 30, 2010 and December 31, 2010, management tested the design and 
operating  effectiveness  of  the  newly  implemented  controls.    As  a  result,  management  concluded  that  the  material 
weakness described above has been remediated as of December 31, 2010.   

Changes in Internal Control over Financial Reporting  

Except as described above, there were no changes in our internal control over financial reporting during the 
quarter ended December 31, 2010 that materially affected, or are reasonably likely to materially affect our internal 
control over financial reporting.  

Item 9B.  Other Information 

None. 

57 

 
 
  
 
   
 
 
 
 
I tem 10. 

Directors, Executive Officers, and Corporate Governance 

PA R T  I I I  

Information required by this item is incorporated herein by reference from our definitive proxy statement for the 
2011 Annual Meeting of Stockholders. 

I tem 11. 

Executive Compensation 

Information required by this item is incorporated herein by reference from our definitive proxy statement for the 
2011 Annual Meeting of Stockholders. 

I tem 12. 

Security Ownership of Certain Beneficial Owners and Management and Related 
Stockholder Matters 

Information required by this item is incorporated herein by reference from our definitive proxy statement for the 
2011 Annual Meeting of Stockholders. 

Equity Compensation Plan Information 
The following table sets forth certain compensation plan information with respect to compensation plans as of 
December 31, 2010: 

Plan Category
Equity compensation plans approved 
by security holders (1)
Equity compensation plans not 
approved by security holders

Total

Number of S ecurities to be 
Issued Upon Exercise of 
Outstanding Options, 
Warrants and Rights

Weighted-average 
Exercise Price of 
Outstanding Options, 
Warrants and Rights

Number of S ecurities 
Available for Future 
Issuance under Equity 
Compensation Plans

4,719,628

$            

3.02

-

4,719,628

N/A

1,941,000

-

1,941,000

(1) Consists of the 1996 Incentive and Non-Qualified Stock Option Plan and the 2010 Incentive Plan.   

I tem 13. 

Certain Relationships and Related Transactions, and Director Independence 

Information required by this item is incorporated herein by reference from our definitive proxy statement for the 
2011 Annual Meeting of Stockholders. 

I tem 14. 

Principal Accountant Fees and Services 

Information required by this item is incorporated herein by reference from our definitive proxy statement for the 
2011 Annual Meeting of Stockholders. 

58 

 
 
 
 
 
                              
                          
                                        
                                    
                              
                          
PA R T  I V  

I tem 15. 

Exhibits and Financial Statement Schedules 

(a) (1) and (2). Financial Statements and Financial Statements Schedule. 

See Index to Financial Statements under Item 8 in Part II hereof where these documents are listed. 

(a) (3). Exhibits.  

The following is a list of exhibits: 

Exhibit 
No. 

Description 

3(a) 

  Restated  Articles  of  Incorporation  of  the  Company  (incorporated  by  reference  to  the  Form  S-3 

Registration Statement of the Company dated May 10, 2000 (No. 333-36682)). 

3(b) 

3(c) 

4(a) 

4(b) 

4(c) 

4(d) 

4(e) 

4(f) 

4(g) 

Form  of  Certificate  of  Amendment  of  the  Restated  Certificate  of  Incorporation  of  SIGA  Technologies, 
Inc. (incorporated by reference to the Proxy Statement on Schedule 14A of the Company dated June 15, 
2007). 

Amended and Restated Bylaws of the Company (incorporated by reference to the Annual Report on Form 
10-K  of  the  Company  for  the  year  ended  December  31,  2008),  as  amended  by  the  Amendment  to  the 
Bylaws of the Company (incorporated by reference to the Current Report on Form 8-K of the Company 
filed March 12, 2009). 

Form of Common Stock Certificate (incorporated by reference to the Form SB-2 Registration Statement 
of the Company dated March 10, 1997 (No. 333-23037)). 

Warrant Agreement dated as of September 15, 1996 between the Company and Vincent A. Fischetti (1) 
(incorporated  by  reference  to  the  Form  SB-2  Registration  Statement  of  the  Company  dated  March  10, 
1997 (No. 333-23037)). 

Warrant  Agreement  dated  as  of  November  18,  1996  between  the  Company  and  David  de  Weese  (1) 
(incorporated  by  reference  to  the  Form  SB-2  Registration  Statement  of  the  Company  dated  March  10, 
1997 (No. 333-23037)). 

Warrant Agreement between the Company and Stefan Capital, dated September 9, 1999 (incorporated by 
reference to the Annual Report on Form 10-KSB of the Company for the year ended December 31, 1999). 

Registration Rights Agreement, dated as of May 23, 2003, between the Company and Plexus Vaccine Inc. 
(incorporated by reference to the Current Report on Form 8-K of the Company filed on June 9, 2003). 

Registration Rights Agreement, dated as of August 13, 2003, between the Company and MacAndrews & 
Forbes Holdings Inc. (incorporated by reference to the Current Report on Form 8-K of the Company filed 
on August 18, 2003). 

Form of Warrant to purchase shares of common stock of the Company, issued to MacAndrews & Forbes, 
LLC on June 19, 2008 (incorporated by reference to the Current  Report on Form 8-K of the  Company 
filed on June 23, 2008). 

10(a) 

License and Research Support Agreement between the Company and The Rockefeller University, dated 
as  of  January  31,  1996;  and  Amendment  to  License  and  Research  Support  Agreement  between  the 
Company and The Rockefeller University, dated as of October 1, 1996(2) (incorporated by reference to 
the Form SB-2 Registration Statement of the Company dated March 10, 1997 (No. 333-23037)). 

59 

 
 
 
 
 
 
 
10(b) 

10(c) 

10(d) 

10(e) 

10(f) 

10(g) 

10(h) 

10(i) 

10(j) 

10(k) 

10(l) 

10(m) 

10(n) 

10(o) 

Research  Agreement  between  the  Company  and  Emory  University,  dated  as  of  January  31,  1996(2) 
(incorporated  by  reference  to  the  Form  SB-2  Registration  Statement  of  the  Company  dated  March  10, 
1997 (No. 333-23037)). 

Research Support Agreement between the Company and Oregon State University, dated as of January 31, 
1996(2)  (incorporated  by  reference  to  the  Form  SB-2  Registration  Statement  of  the  Company  dated 
March 10, 1997 (No. 333-23037)). 

Letter Agreement dated as of March 5, 1999 to continue the Research Support Agreement (incorporated 
by reference to the  Annual Report on Form 10-KSB of the Company  for the  year ended December 31, 
1999). 

Option Agreement between the Company and Oregon State University, dated as of November 30, 1999 
and related Amendments to the Agreement (incorporated by reference to the Annual Report on Form 10-
KSB of the Company for the year ended December 31, 1999). 

Clinical  Trials  Agreement  between  the  Company  and  National  Institute  of  Allergy  and  Infectious 
Diseases,  dated  as  of  July  1,  1997  (incorporated  by  reference  to  Amendment  No.  1  to  the  Form  SB-2 
Registration Statement of the Company dated July 11, 1997 (No. 333-23037)). 

Research  Agreement  between  the  Company  and  The  Research  Foundation  of  State  University  of  New 
York,  dated  as  of  July  1,  1997(2)  (incorporated  by  reference  to  Amendment  No.  1  to  the  Form  SB-2 
Registration Statement of the Company dated July 11, 1997 (No. 333-23037)). 

Collaborative  Research  and  License  Agreement  between  the  Company  and  Wyeth,  dated  as  of  July  1, 
1997(2) (incorporated by reference to Amendment No. 3 to the Form SB-2 Registration Statement of the 
Company dated September 2, 1997 (No. 333-23037)). 

Research Collaboration and License Agreement between the Company and The Washington University, 
dated as of February 6, 1998 (2) (incorporated by reference to the Annual Report on Form 10-KSB of the 
Company for the year ended December 31, 1997). 

Settlement Agreement and Mutual Release between the Company and The Washington University, dated 
as  of  February  17,  2000  (incorporated  by  reference  to  the  Annual  Report  on  Form  10-KSB  of  the 
Company for the year ended December 31, 1999). 

Technology Transfer Agreement between the Company and MedImmune, Inc., dated as of February 10, 
1998  (incorporated  by  reference  to  the  Annual  Report  on  Form  10-KSB  of  the  Company  for  the  year 
ended December 31, 1997). 

Option  Agreement  between  the  Company  and  Ross  Products  Division  of  Abbott  Laboratories,  dated 
February 28, 2000 (incorporated by reference to the Annual Report on Form 10-KSB of the Company for 
the year ended December 31, 1999). 

Agreement  between  the  Company  and  Oregon  State  University  for  the  Company  to  provide  contract 
research  services  to  the  University  dated  September  24,  2000 (incorporated  by  reference  to  the  Annual 
Report on Form 10-KSB of the Company for the year ended December 31, 2000). 

License and Research Agreements between the Company and the Regents of the University of California 
dated  December  6,  2000  (incorporated  by  reference  to  the  Annual  Report  on  Form  10-KSB  of  the 
Company for the year ended December 31, 2000). 

Amended  and  Restated  1996  Incentive  and  Non-Qualified  Stock  Option  Plan  dated  August  15,  2001 
(incorporated  by  reference  to  the  Annual  Report  on  Form  10-KSB  of  the  Company  for  the  year  ended 
December 31, 2001), as amended (as set forth in the Current Report on Form 8-K of the Company filed 
on May 27, 2005). 

60 

 
 
10(p) 

10(q) 

10(r) 

10(s) 

10(t) 

10(u) 

10(v) 

Research  and  License  Agreement  between  the  Company  and  TransTech  Pharma,  Inc.  dated  October  1, 
2002  (incorporated  by  reference  to  the  Annual  Report  on  Form  10-KSB  of  the  Company  for  the  year 
ended December 31, 2002). 

Contract between the Company and the Department of the United States Army dated December 12, 2002 
(incorporated  by  reference  to  the  Annual  Report  on  Form  10-KSB  of  the  Company  for  the  year  ended 
December 31, 2002). 

Contract between the Company and Four Star Group dated February 5, 2003 (incorporated by reference 
to the Annual Report on Form 10-KSB of the Company for the year ended December 31, 2002). 

Securities Purchase Agreement, dated as of August 13, 2003, between the Company and MacAndrews & 
Forbes Holdings Inc. (incorporated by reference to the Current Report on Form 8-K of the Company filed 
on August 18, 2003). 

Letter Agreement dated October 8, 2003 among the Company, MacAndrews & Forbes Holdings Inc. and 
TransTech Pharma, Inc. (incorporated by reference to the Current Report on Form 8-K of the Company 
filed on August 18, 2003). 

Non-Employee  Director  Compensation  Summary  Sheet  (incorporated  by  reference  to  the  Quarterly 
Report on Form 10-Q of the Company for the quarter ending March 31, 2005). 

Director  Compensation  Program,  effective  April  21,  2005  (incorporated  by  reference  to  the  Current 
Report on Form 8-K of the Company filed on April 26, 2005). 

10(w) 

Service  Agreement,  dated  as  of  April  27,  2005,  between  the  Company  and  TransTech  Pharma,  Inc. 
(incorporated by reference to the Current Report on Form 8-K of the Company filed on May 3, 2005). 

10(x) 

10(y) 

10(z) 

10(aa) 

10(bb) 

10(cc) 

Master  Security  Agreement,  dated  as  of  April  29,  2005,  between  General  Electric  Capital  Corporation 
and the Company (incorporated by reference to the Current Report on Form 8-K of the Company filed on 
May 3, 2005). 

Agreement,  dated  as  of  September  14,  2005,  between  Saint  Louis  University  and  the  Company 
(incorporated by reference to  the Current  Report on Form  8-K of the  Company  filed on September 20, 
2005). 

Agreement,  dated  as  of  September  22,  2005,  between  the  United  States  Army  Medical  Research  and 
Material Command and the Company (incorporated by reference to the Current Report on Form 8-K of 
the Company filed on September 27, 2005). 

Securities  Purchase  Agreement,  dated  as  of  November  2,  2005,  between  Iroquois  Master  Fund  Ltd., 
Cranshire  Capital,  L.P.,  Omicron  Master  Trust,  Smithfield  Fiduciary  LLC  and  the  Company 
(incorporated  by  reference  to  the  Current  Report  on  Form  8-K  of  the  Company  filed  on  November  4, 
2005). 

Exclusive Finder’s Agreement, dated as of November 1, 2005, between the Shemano Group, Inc. and the 
Company  (incorporated  by  reference  to  the  Current  Report  on  Form  8-K  of  the  Company  filed  on 
November 4, 2005). 

Bridge Note Purchase Agreement, dated as of March 20, 2006, between the Company and PharmAthene, 
Inc. (incorporated by reference to the Current Report on Form 8-K of the Company filed on March 22, 
2006). 

10(dd) 

Security  Agreement,  dated  as  of  March  20,  2006,  between  the  Company  and  PharmAthene,  Inc. 
(incorporated by reference to the Current Report on Form 8-K of the Company filed on March 22, 2006). 

61 

 
 
10(ee) 

Voting Agreement, dated as of June 8, 2006, among the Company, TransTech Pharma, Inc., MacAndrews 
& Forbes, Inc., Howard Gittis, Donald G. Drapkin, James J. Antal, Thomas E. Constance, Mehmet C. Oz, 
Eric  A.  Rose  and  Paul  G.  Savas  (incorporated  by  reference  to  the  Current  Report  on  Form  8-K  of  the 
Company filed on June 13, 2006). 

10(ff) 

Agreement and Plan of Merger, dated as of June 8, 2006, among the Company, SIGA Acquisition Corp. 
and PharmAthene, Inc. (incorporated by reference to the Current  Report on Form 8-K of the Company 
filed on June 13, 2006). 

10(gg) 

8%  Note,  dated  as  of  June  19,  2006,  between  the  Company  and  PharmAthene,  Inc.  (incorporated  by 
reference to the Current Report on Form 8-K of the Company filed on June 20, 2006). 

10(hh)  Agreement, dated as of September 29, 2006, between SIGA Technologies, Inc. and the National Institute 
of Allergy and Infectious Diseases of the National Institutes for Health (incorporated by reference to the 
Quarterly Report on Form 10-Q/A for the quarter ending September 30, 2006). 

10(ii) 

Securities  Purchase  Agreement,  dated  as  of  October  18,  2006,  between  the  Company,  Iroquois  Master 
Fund Ltd., Cranshire Capital, L.P., Omicron Master Trust, Rockmore Investment Master Fund, Ltd., and 
Smithfield Fiduciary LLC (incorporated by reference to the Current Report on Form 8-K of the Company 
filed on October 20, 2006). 

10(jj) 

Amended and Restated Employment Agreement, dated as of January 22, 2007, between the Company and 
Dennis E. Hruby (incorporated by reference to the Current Report on Form 8-K of the Company filed on 
January 22, 2007). 

10(kk) 

Letter  Agreement,  dated  as  of  June  19,  2008, between  the  Company  and  MacAndrews  &  Forbes,  LLC 
(incorporated by reference to the Current Report on Form 8-K of the Company filed on June 23, 2008). 

10(ll) 

Contract, dated September 1, 2008, between the Company and the National Institutes of Health, DHHS 
(incorporated by reference to the Quarterly Report on Form 10-Q of the Company for the quarter ending 
September 30, 2008). 

10(mm)  Modification of Contract, dated September 17, 2008, between the Company and the National Institute of 
Allergy  and  Infectious  Diseases  of  the  National  Institutes  of  Health  (incorporated  by  reference  to  the 
Quarterly Report on Form 10-Q of the Company for the quarter ending September 30, 2008). 

10(nn) 

Employment  Agreement,  dated  as  of  January  31,  2007,  between  the  Company  and  Eric  A.  Rose 
(incorporated  by  reference  to  the  Current  Report  on  Form  8-K  of  the  Company  filed  on  January  31, 
2007), as amended and restated (as set forth in the Current Report on Form 8-K of the Company filed on 
November 17, 2008). 

10(oo) 

Employment  Agreement,  dated  January  22,  2007,  between  the  Company  and  Ayelet  Dugary 
(incorporated by reference to the Current Report on Form 8-K of the Company filed on March 12, 2009). 

10(pp)  Amendment  to  Employment  Agreement,  dated  March  11,  2009,  between  the  Company  and  Ayelet 
Dugary (incorporated by reference to the Current  Report on Form 8-K of the Company  filed on March 
12, 2009). 

10(qq) 

Letter Agreement, dated as of April 29, 2009, between the Company and Ayelet Dugary (incorporated by 
reference to the Current Report on Form 8-K of the Company filed on April 30, 2009). 

10(rr) 

Amendment  to  Employment  Agreement,  dated  March  11,  2009,  between  the  Company  and  Dennis  E. 
Hruby (incorporated by reference to the Current Report on Form 8-K of the Company filed on March 12, 
2009). 

62 

 
 
10(ss) 

Extension  Letter  Agreement,  dated  April  29,  2009,  between  MacAndrews  &  Forbes  LLC  and  the 
Company (incorporated by reference to the Current Report on Form 8-K of the Company filed on April 
30, 2009). 

10(tt) 

Form  of  Consideration  Warrants  (incorporated  by  reference  to  the  Current  Report  on  Form  8-K  of  the 
Company filed on April 30, 2009). 

10(uu) 

Form  of  Subscription  Agreement  (incorporated by  reference  to  the  Current  Report  on  Form  8-K  of  the 
Company filed on December 10, 2009). 

10(vv) 

2010  Stock  Incentive  Plan  dated  May  13,  2010  (incorporated  by  reference  to  the  Definitive  Proxy 
Statement on Schedule 14A of the Company filed on April 12, 2010). 

10(ww)  Deferred Closing and Registration Rights Agreement, dated as of June 18, 2010, between MacAndrews & 
Forbes  LLC  and  the  Company  (incorporated  by  reference  to  the  Current  Report  on  Form  8-K  of  the 
Company filed on June 22, 2010). 

14 

The Company’s Code of Ethics and Business Conduct (incorporated by reference to the Annual Report 
on Form 10-KSB of the Company for the year ended December 31, 2003). 

21 

Subsidiaries of the Registrant. 

23.1 

Consent of Independent Registered Public Accounting Firm. 

31.1 

  Certification  pursuant  to  Rules  13a-15(e)  or  15d-15(e)  under  the  Securities  Exchange  Act  of  1934,  as 

adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 – Chief Executive Officer. 

31.2 

  Certification  pursuant  to  Rules  13a-15(e)  or  15d-15(e)  under  the  Securities  Exchange  Act  of  1934,  as 

adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 – Chief Financial Officer.  

32.1 

  Certification  Pursuant  to  18  U.S.C.  Section  1350,  as  adopted  pursuant  to  Section  906  of  the  Sarbanes-

Oxley Act of 2002 – Chief Executive Officer.  

32.2 

  Certification  Pursuant  to  18  U.S.C.  Section  1350,  as  adopted  pursuant  to  Section  906  of  the  Sarbanes-

Oxley Act of 2002 – Chief Financial Officer. 

(1)  These agreements were entered into prior to the reverse split of the Company’s common stock and, therefore, 

do not reflect such reverse split. 

(2)  Confidential information is omitted and identified by an * and filed separately with the SEC with a request for 

Confidential Treatment. 

63 

 
 
 
 
Pursuant to the requirements of Section 13 or 15(d) 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. 

SI G NA T UR E S 

Date: March 9, 2011 

SIGA TECHNOLOGIES, INC. 
(Registrant) 

By: 

 /s/ Eric A. Rose 
Eric A. Rose, M.D. 
Chairman and Chief  
 Executive Officer 

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by 

the following persons on behalf of the registrant and in the capacities and on the dates indicated. 

Signatur e 

T itle of C apacities 

Date 

/s/ Eric A. Rose, M.D. 
Eric A. Rose, M.D. 

/s/ Daniel J. Luckshire 
Daniel Luckshire 

/s/ Steven L. Fasman 
Steven L. Fasman 

/s/ James J. Antal 
James J. Antal 

/s/ Thomas E. Constance 
Thomas E. Constance 

/s/ Scott Hammer, M.D. 
Scott Hammer, M.D. 

/s/ Paul G. Savas 
Paul G. Savas 

/s/ Michael Weiner, M.D. 
Michael Weiner, M.D. 

/s/ Michael J. Bayer 
Michael J. Bayer 

/s/ Bruce Slovin 
Bruce Slovin 

/s/ Joseph Marshall 
Joseph Marshall 

/s/ Andrew Stern 
Andrew Stern 

Chairman and Chief Executive 
Officer  (Principal Executive Officer) 

March 9, 2011 

March 9, 2011 

  March 9, 2011 

  March 9, 2011 

  March 9, 2011 

  March 9, 2011 

  March 9, 2011 

  March 9, 2011 

  March 9, 2011 

March 9, 2011 

March 9, 2011 

March 9, 2011 

Executive Vice President and Chief 
Financial Officer (Principal Financial 
Officer and Principal Accounting 
Officer) 

Director 

Director 

Director 

Director 

Director 

Director 

Director 

Director 

Director 

Director 

63