6 insiders reported 15 Form 4 transactions for GERON CORP (GERN) over the past 18 months (most recent 2026-07-01). Recent activity: Spiegel Robert J. (Director) Buy 6,103 shares, ROBERTSON MICHELLE (EVP, CHIEF FINANCIAL OFFICER) Buy 27,500 shares, ROBERTSON MICHELLE (EVP, CHIEF FINANCIAL OFFICER) Sell 9,855 shares, Spiegel Robert J. (Director) Buy 5,918 shares, Spiegel Robert J. (Director) Buy 5,702 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-01 | Spiegel Robert J. | Director | Buy | 6,103 | $7,812 |
| 2026-02-19 | ROBERTSON MICHELLE | EVP, CHIEF FINANCIAL OFFICER | Buy | 27,500 | $0 |
| 2026-02-19 | ROBERTSON MICHELLE | EVP, CHIEF FINANCIAL OFFICER | Sell | 9,855 | $19,119 |
| 2026-01-05 | Spiegel Robert J. | Director | Buy | 5,918 | $7,812 |
| 2025-10-01 | Spiegel Robert J. | Director | Buy | 5,702 | $7,812 |
| 2025-07-01 | Spiegel Robert J. | Director | Buy | 5,540 | $7,811 |
| 2025-05-13 | LAWLIS V BRYAN | Director | Buy | 13,300 | $15,694 |
| 2025-04-02 | Spiegel Robert J. | Director | Buy | 4,913 | $7,812 |
| 2025-04-02 | Spiegel Robert J. | Director | Buy | 2,206 | $7,809 |
| 2025-04-02 | Spiegel Robert J. | Director | Buy | 1,767 | $8,022 |
| 2025-04-02 | Spiegel Robert J. | Director | Buy | 2,462 | $8,125 |
| 2025-04-02 | Spiegel Robert J. | Director | Buy | 1,916 | $8,124 |
| 2025-03-03 | Ziegler James | EVP, Chief Commercial Officer | Buy | 100,000 | $160,000 |
| 2025-03-03 | Samuels Scott Alan | EVP, Chief Legal Officer | Buy | 15,000 | $24,150 |
| 2025-03-03 | SCARLETT JOHN A | Chairman, President and CEO | Buy | 12,500 | $22,125 |
Source: SEC Form 4 filings · as of 2026-07-01