Spiegel Robert J. (CIK 1492256) reported 5 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-01). Recent activity: Buy GERN (6,103 shares), Buy GERN (5,243 shares), Buy GERN (5,918 shares), Buy GERN (5,702 shares), Buy GERN (5,540 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-01 | GERON CORP (GERN) | Director | Buy | 6,103 | $7,812 |
| 2026-04-01 | GERON CORP (GERN) | Director | Buy | 5,243 | $7,812 |
| 2026-01-05 | GERON CORP (GERN) | Director | Buy | 5,918 | $7,812 |
| 2025-10-01 | GERON CORP (GERN) | Director | Buy | 5,702 | $7,812 |
| 2025-07-01 | GERON CORP (GERN) | Director | Buy | 5,540 | $7,811 |
来源：SEC Form 4 申报文件 · 截至 2026-07-01