Illumigen Biosciences Acquisition

12/26/2007

M&A

$341,500,000

Pursuant to the terms of the agreement, which was approved by the Boards of Directors of each company, Cubist will pay to the Illumigen stockholders $9 Million (after adjusting for Illumigen's closing cash balance) in cash and Illumigen has become a wholly-owned subsidiary of Cubist. Cubist will make payments during the development of IB657 as a therapy for HCV infections of up to $75.5 Million upon achieving certain development and regulatory milestones. If Cubist develops Illumigen products for the treatment of viruses other than HCV, development and regulatory milestone payments of up to $117 Million could apply. Assuming that HCV or other Illumigen antiviral products are commercialized, additional milestone payments of up to $140 Million, as well as tiered royalties, could apply.

Acquired or Merged

Biopharmaceutical

201 Elliott Ave. West 500
Seattle, WA 98119
USA

Illumigen has assembled a world-class team of scientists, clinicians, and business professionals.