X0303 5 2010-12-31 0 0 0000886744 GERON CORP GERN 0001187021 EARP DAVID C/O GERON CORPORATION 230 CONSTITUTION DRIVE MENLO PARK CA 94025 0 1 0 0 SVP Bus Dev, Chief Patnt Couns Common Stock 20553 I By 401(k) Plan Represents shares held under Geron 401(k) Plan. In January 2011, the reporting person acquired 3,136 shares of Geron common stock under the Geron 401(k) plan. /s/ Olivia K. Bloom for David J. Earp 2011-02-11