Modification of Contract dated September 17, 2008, between SIGA Technologies, Inc. and the National Institute of Allergy and Infectious Diseases of the National Institutes of Health

1. CONTRACT ID CODE

PAGE

OF

PAGES

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1

4

3. EFFECTIVE DATE

4. REQUISITION/PURCHASE REQ. NO.

5. PROJECT NO. (If applicable)

Four (4)

   See block 16C.

   722925

6.

ISSUED BY

CODE

7. ADMINISTERED BY (If other than Item 6)

CODE

National Institutes of Health

National Institute of Allergy and Infectious Diseases

DEA, Office of Acquisitions

     MID RCB-A

Room 3214, MSC 7612

6700-B Rockledge Drive

Bethesda, MD 20892-7612

8. NAME AND ADDRESS OF CONTRACTOR (No. Street, County, State and ZIP: Code)

(o)

9A.

AMENDMENT OF SOLICITATION NO.

SIGA Technologies

9B.

DATED (SEE ITEM 11)

Corvallis, OR 97333

10A.

MODIFICATION OF CONTRACT/ORDER NO.

HHSN266200600014C

10B.

DATED (SEE ITEM 13)

CODE

FACILITY CODE

September 29, 2006

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

o

   The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

o

is extended,

o

is not extended.

(a) By completing Items 8 and 15, and returning one (1) copy of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATA SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and data specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required

EIN: 1 ###-###-####-AI SOC: 25.55

CAN: 8 ###-###-#### Obligates $2,984,928

BARDA CAN: 8 ###-###-#### Obligates $8,500,000

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS,
IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

(o)

A.

THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

^B.

THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

^C.

^{THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:}
41 U.S.C. 253(c) (1), as set forth in FAR 6.302-1

^D.

^{OTHER (Specify type of modification and authority)}

E. IMPORTANT: Contractor      o is not,    x is required to sign this document and return 2 copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

Total Funds Currently Allotted

Total Estimated Cost Plus Fixed Fee

Cost

Fee

Total

Cost

Fee

Total

Prior to this Mod

$15,903,262

$636,327

$16,539,589

$15,908,190

$636,327

$16,544,517

This Mod #4

$11,484,928

$0

$11,484,928

$19,999,803

$0

$19,999,803

Revised Total

$27,388,190

$636,327

$28,024,517

$35,907,993

$636,327

$36,544,320

FUNDED THROUGH DATE: December 31, 2010 (Changed)

COMPLETION DATE: September 28, 2011 (Changed)

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER

(Type or print)

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

Yvette R. Brown, Contracting Officer, OA, NIAID, NIH, DHHS

15B. CONTRACTOR/OFFEROR

16B. UNITED STATES OF AMERICA

BY

(Signature of person authorized to sign)

(Signature of Contracting Officer)

NSN 7540-01-152-8070
PREVIOUS EDITION UNUSABLE