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Exhibit 10.1
SIGA TECHNOLOGIES, INC.
 
420 Lexington Avenue, Suite 408
 
New York, New York 10170
 

 
                February 1, 2006
 

Thomas N. Konatich

 
Re:
Extension of Employment

 
Dear Tom:
 
With regard to your employment with SIGA Technologies, Inc. (the “Company”) we
are pleased to offer you an extension of your employment pursuant to that
certain Amended and Restated Employment Agreement, dated October 6, 2000, as
amended (the “Employment Agreement”), through June 30, 2007.
 
Except as described above, it is our understanding that all remaining terms and
conditions of the Employment Agreement shall remain in full force and effect.
Please indicate your agreement and acceptance of the foregoing, as of the date
of this letter, by your signature below.
 
Very truly yours,
 
/s/ Donald G. Drapkin
Donald G. Drapkin
Chairman of the Board of Directors of
SIGA Technologies, Inc.

Acknowledged and Agreed:

/s/ Thomas N. Konatich                     
Thomas N. Konatich

cc:
James A. Grayer