0001104659-08-077897 Sample Contracts

REGISTRATION RIGHTS AGREEMENT

Registration Rights Agreement • December 22nd, 2008 • Helicos Biosciences Corp • Pharmaceutical preparations

• Contract Type
  Registration Rights Agreement
• Filed
  December 22nd, 2008
• Company
  Helicos Biosciences Corp
• Industry
  Pharmaceutical preparations

This Registration Rights Agreement (this “Agreement”) is made and entered into as of December 19, 2008, by and among Helicos BioSciences Corporation, a Delaware corporation (the “Company”), and the several purchasers signatory hereto (each a “Purchaser” and collectively, the “Purchasers”).

SECURITIES PURCHASE AGREEMENT

Securities Purchase Agreement • December 22nd, 2008 • Helicos Biosciences Corp • Pharmaceutical preparations • Delaware

• Contract Type
  Securities Purchase Agreement
• Filed
  December 22nd, 2008
• Company
  Helicos Biosciences Corp
• Industry
  Pharmaceutical preparations
• Jurisdiction
  Delaware

This Securities Purchase Agreement (this “Agreement”) is dated as of December 19, 2008, by and among Helicos BioSciences Corporation, a Delaware corporation (the “Company”), and the several purchasers identified on the signature pages hereto (each, including its successors and assigns, a “Purchaser” and collectively, the “Purchasers”).