News Release

Geron Announces Conference Call to Discuss Fourth Quarter and Annual 2009 Financial Results and Highlights

MENLO PARK, Calif., February 23, 2010 - Geron Corporation (Nasdaq: GERN) will announce its financial results for the 2009 fourth quarter and year end on Thursday, February 25, 2010, after the closing of the equity market. Thomas B. Okarma, Ph.D., M.D., Geron's president and chief executive officer, and David L. Greenwood, Geron's executive vice president and chief financial officer, will host a conference call for analysts and investors on Friday, February 26 at 8:00 a.m. Pacific Time, 11:00 a.m. Eastern Time.

Participants can access the conference call live via telephone by dialing 866-788-0547 (U.S.); 857-350-1685 (international). The passcode is 25454138. A live audio-only webcast is also available through a link that is posted on the Conferences page in the Investor Relations section of Geron's Web site at http://www.geron.com. The audio Web broadcast of the conference call will be available for replay through March 28, 2010.

About Geron

Geron is developing first-in-class biopharmaceuticals for the treatment of cancer and chronic degenerative diseases, including spinal cord injury, heart failure and diabetes. The company is advancing an anti-cancer drug and a cancer vaccine that target the enzyme telomerase through multiple clinical trials in different cancers. For more information about Geron, visit www.geron.com.

CONTACT:

Anna Krassowska, Ph.D.
Investor and Media Relations
650-473-7765
info@geron.com

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