List of insiders holdings for GERON CORP:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | Semerjian Harout President and CEO | 2025-08-08 16:15:37 | 11,000,000 0 | 11,000,000 | Form 4 |
| 2 | ElNawawi Ahmed EVP, Chief Commercial Officer | 2025-10-20 17:35:05 | 3,000,000 0 | 3,000,000 | Form 4 |
| 3 | Williams Timothy EVP and Chief Legal Officer | 2026-04-14 20:14:14 | 2,500,000 0 | 2,500,000 | Form 4 |
| 4 | HARLEY CALVIN VP, CSO Telomerase Tech | 2009-06-01 21:24:34 | 2,258,451 0 | 2,258,451 | Form 4 |
| 5 | Eid Joseph EVP, R&D; Chief Medical Office | 2026-02-19 18:11:23 | 2,220,000 0 | 2,220,000 | Form 4 |
| 6 | ROBERTSON MICHELLE EVP, CHIEF FINANCIAL OFFICER | 2026-02-19 18:10:05 | 1,760,145 0 | 1,760,145 | Form 4 |
| 7 | GRETHLEIN ANDREW J EVP, Chief Operating Officer | 2025-02-20 16:05:04 | 979,000 0 | 979,000 | Form 4 |
| 8 | WALKER JOHN PETER Director | 2009-01-30 21:12:26 | 886,087 0 | 886,087 | Form 4 |
| 9 | OKARMA THOMAS President and CEO | 2010-07-13 20:13:37 | 774,560 0 | 774,560 | Form 4 |
| 10 | Rizo Aleksandra EVP, Chief Medical Officer | 2022-02-18 18:05:14 | 750,000 0 | 750,000 | Form 4 |
| 11 | ROSENFIELD STEPHEN EVP, Chief Legal Off & Sec | 2022-02-18 18:07:42 | 750,000 0 | 750,000 | Form 4 |
| 12 | EARP DAVID SVP, Corp Transactions | 2012-06-01 20:15:12 | 467,406 0 | 467,406 | Form 4 |
| 13 | Parker Craig C EVP, Corp Dev & Sci Affairs | 2014-02-12 20:30:23 | 400,000 0 | 400,000 | Form 4 |
| 14 | BARKAS ALEXANDER E Director | 2011-05-24 21:07:29 | 353,122 0 | 353,122 | Form 4 |
| 15 | Kapur Anil EVP, Corp Strategy & CCO | 2024-06-12 16:05:04 | 328,125 0 | 328,125 | Form 4 |
| 16 | BEHRS MELISSA KELLY EVP, Chief Business Officer | 2021-02-04 19:45:30 | 300,000 0 | 300,000 | Form 4 |
| 17 | Andrews Patricia S Director | 2026-03-26 17:33:13 | 270,000 0 | 270,000 | Form 4 |
| 18 | Chinoporos Constantine Director | 2026-03-26 17:37:09 | 270,000 0 | 270,000 | Form 4 |
| 19 | Benedetti Fabio M SVP, Chief Med Off, Oncology | 2009-06-01 21:22:27 | 265,560 0 | 265,560 | Form 4 |
| 20 | STEMPEL WILLIAM VP and General Counsel | 2004-06-01 17:17:39 | 260,480 0 | 260,480 | Form 4 |
| 21 | Bloom Olivia Kyusuk EVP, Chief Financial Officer | 2023-09-21 20:31:15 | 250,000 0 | 250,000 | Form 4 |
| 22 | MERIX BIOSCIENCE INC 10% Owner | 2004-11-12 07:58:28 | 221,300 0 | 221,300 | Form 13G |
| 23 | Molineaux Susan Director | 2026-05-26 19:45:09 | 220,000 0 | 220,000 | Form 4 |
| 24 | Bir Dawn Carter Director | 2026-05-26 19:45:05 | 220,000 0 | 220,000 | Form 4 |
| 25 | O'Farrell Elizabeth G. Director | 2026-05-26 19:45:13 | 220,000 0 | 220,000 | Form 4 |
| 26 | McDonald John F Director | 2026-05-26 19:45:07 | 220,000 0 | 220,000 | Form 4 |
| 27 | Spiegel Robert J. Director | 2026-07-01 17:45:13 | 205,810 0 | 205,810 | Form 4 |
| 28 | COOPER GRAHAM K EVP, Bus Dev & CFO | 2012-05-18 20:05:38 | 200,000 0 | 200,000 | Form 4 |
| 29 | FRITZKY EDWARD V Director | 2013-05-24 19:09:01 | 186,511 0 | 186,511 | Form 4 |
| 30 | LAWLIS V BRYAN Director | 2025-05-22 17:04:42 | 180,000 0 | 180,000 | Form 4 |
| 31 | Aggarwal Gaurav Director | 2025-05-22 17:07:35 | 180,000 0 | 180,000 | Form 4 |
| 32 | KILEY THOMAS Director | 2013-05-24 19:10:16 | 171,911 0 | 171,911 | Form 4 |
| 33 | SCARLETT JOHN A Chairman, President and CEO | 2025-03-03 06:01:06 | 12,500 125,000 | 137,500 | Form 4 |
| 34 | EASTHAM KARIN Director | 2023-01-17 19:01:10 | 109,047 0 | 109,047 | Form 4 |
| 35 | Ziegler James EVP, Chief Commercial Officer | 2025-03-03 06:01:05 | 100,000 0 | 100,000 | Form 4 |
| 36 | Feller Faye EVP, Chief Medical Officer | 2024-06-12 16:05:08 | 87,500 0 | 87,500 | Form 4 |
| 37 | ZENNER PATRICK J Director | 2010-05-21 21:10:16 | 84,960 0 | 84,960 | Form 4 |
| 38 | HOMCY CHARLES J Director | 2011-05-13 20:02:01 | 72,751 0 | 72,751 | Form 4 |
| 39 | Huh Hoyoung Director | 2018-05-17 16:42:56 | 70,000 0 | 70,000 | Form 4 |
| 40 | Kelsey Stephen Michael EVP, R&D, Chief Med Officer | 2013-05-07 21:23:46 | 62,272 0 | 62,272 | Form 4 |
| 41 | BRADBURY DANIEL Director | 2019-04-01 19:55:22 | 0 51,323 | 51,323 | Form 4 |
| 42 | LEBKOWSKI JANE Former SVP, CSO | 2012-02-14 17:09:24 | 0 38,712 | 38,712 | Form 5 |
| 43 | GREENWOOD DAVID Former President and CFO | 2012-02-14 17:10:03 | 0 28,596 | 28,596 | Form 5 |
| 44 | Samuels Scott Alan EVP, Chief Legal Officer | 2025-03-03 06:01:08 | 26,682 0 | 26,682 | Form 4 |
| 45 | Hofstaetter Thomas Director | 2015-03-19 19:27:58 | 26,564 0 | 26,564 | Form 4 |
| 46 | Spink Katharine E. Former SVP Alliance Mgmt & Ops | 2012-02-14 17:11:15 | 0 15,803 | 15,803 | Form 5 |
| 47 | Nallicheri Melanie I SVP Corp Dev | 2012-02-14 17:10:29 | 0 10,015 | 10,015 | Form 5 |
| 48 | Colowick Alan President, Oncology | 2008-01-04 20:54:56 | 0 3,028 | 3,028 | Form 4 |
| 49 | STEIN ROBERT B Director | 2003-12-02 16:24:28 | 625 0 | 625 | Form 4 |