Mr. Stanley N. Lapidus

Chairman and Chief Executive Officer, Helicos Biosciences Corporation

Mr. Lapidus is an experienced life-science entrepreneur. Helicos is his third life-science start-up. In 1995 he founded EXACT Sciences Corporation (NASDAQ: EXAS), an applied genomics company that develops and markets non-invasive, DNA-based methods for early detection of colorectal and other common cancers. He served as the CEO from 1995 to 2001 and Chairman of EXACT Sciences' Board of Directors from 2000 until the end of 2005. Prior to EXACT, Mr. Lapidus founded Cytyc Corporation (NASDAQ:CYTC) and was President and CEO from 1987 through 1994.

In addition to his entrepreneurial activities, Mr. Lapidus holds academic appointments in the Pathology Department at Tufts University Medical School and MIT's Sloan School of Management. He earned a BSEE from Cooper Union. He has served as a trustee of Cooper Union since 2002. Mr. Lapidus holds 30 issued patents.