Cubist Reports First $100 Million Revenue Quarter;
Q2 2008 Total Revenues $101.8 Million;
Total Net Product Revenues $101.4 Million

July 17, 2008

For more information: http://www.cubist.com/investor_relations/press/

GAAP Basic and Diluted Net Income of $0.03 Per Share, Reflecting One Time Expenses
Non-GAAP Basic and Diluted Net Income of $0.38 and $0.35 Per Share, Respectively

Earnings Conference Call & Webcast Today (With Slides) at 5:00 p.m. EDT

For full press release and tables, please click on link below

For more information: http://www.cubist.com/investor_relations/press/

Cubist Reports First $100 Million Revenue Quarter; Q2 2008 Total Revenues $101.8 Million; Total Net Product Revenues $101.4 Million

Cubist Reports First $100 Million Revenue Quarter;
Q2 2008 Total Revenues $101.8 Million;
Total Net Product Revenues $101.4 Million