Common Contracts

AND [ ], AS WARRANT AGENT FORM OF COMMON STOCK WARRANT AGREEMENT DATED AS OF

Warrant Agreement • May 1st, 2007 • Cell Genesys Inc • Pharmaceutical preparations • New York

• Contract Type
  Warrant Agreement
• Filed
  May 1st, 2007
• Company
  Cell Genesys Inc
• Industry
  Pharmaceutical preparations
• Jurisdiction
  New York

COMMON STOCK WARRANT AGREEMENT, dated as of [ ]between Cell Genesys, Inc., a Delaware corporation (the “COMPANY”) and [ ], a [corporation] [national banking association] organized and existing under the laws of [ ] and having a corporate trust office in [ ], as warrant agent (the “WARRANT AGENT”).

SIRNA THERAPEUTICS, INC. AND [ ], AS WARRANT AGENT FORM OF COMMON STOCK WARRANT AGREEMENT DATED AS OF

Warrant Agreement • November 23rd, 2005 • Sirna Therapeutics Inc • Pharmaceutical preparations • New York

• Contract Type
  Warrant Agreement
• Filed
  November 23rd, 2005
• Company
  Sirna Therapeutics Inc
• Industry
  Pharmaceutical preparations
• Jurisdiction
  New York

COMMON STOCK WARRANT AGREEMENT, dated as of [ ]between SIRNA THERAPEUTICS, INC., a Delaware corporation (the “COMPANY”) and [ ], a [corporation] [national banking association] organized and existing under the laws of [ ] and having a corporate trust office in [ ], as warrant agent (the “WARRANT AGENT”).