X0508 4 2023-08-15 0000886744 GERON CORP GERN 0001937361 Feller Faye C/O GERON CORPORATION 919 E HILLSDALE BLVD. SUITE 250 FOSTER CITY CA 94404 0 1 0 0 EVP, Chief Medical Officer 0 Employee Stock Option (right to buy) 1.06 2023-08-15 4 A 0 20000 0 A 2023-08-15 2032-02-15 Common Stock 20000 20000 D Employee Stock Option (right to buy) 1.930 2023-08-15 4 A 0 180000 0 A 2023-08-15 2032-07-07 Common Stock 180000 180000 D Performance-based stock option granted on February 16, 2022 and vested in full on August 15, 2023 upon acceptance of the NDA by the US FDA for imetelstat in lower risk MDS. Performance-based stock option granted on July 8, 2022 and vested in full on August 15, 2023 upon acceptance of the NDA by the US FDA for imetelstat in lower risk MDS. /s/ Olivia Bloom for Faye Feller 2023-09-21