0000912057-00-018633 Sample Contracts

Exhibit 4.2 REPLIGEN CORPORATION WARRANT FOR THE PURCHASE OF SHARES OF COMMON STOCK

Warrant for the Purchase of Shares of Common Stock • April 18th, 2000 • Repligen Corp • Biological products, (no disgnostic substances) • Delaware

• Contract Type
  Warrant for the Purchase of Shares of Common Stock
• Filed
  April 18th, 2000
• Company
  Repligen Corp
• Industry
  Biological products, (no disgnostic substances)
• Jurisdiction
  Delaware