Geron Corp (GERN) insider trading
Every open-market stock purchase and sale by Geron Corp executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Insiders sold $19.1K over the last 12 months (1 sale). No open-market buys.
- Last insider buy: V Bryan Lawlis (Director), $15.7K, 17 months ago.
Last 12 months: insiders bought $0 (0 buys) and sold $19.1K (1 sale). Last close $1.36 on Jul 2, 2026.
Recent GERN insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Sep 30, 2026 | Robert J. Spiegel (Insider) | Bought (not open market) | $7.8K |
| Jun 30, 2026 | Robert J. Spiegel (Insider) | Bought (not open market) | $7.8K |
| May 20, 2026 | John F McDonald (Insider) | Bought (not open market) | — |
| May 20, 2026 | Dawn Carter Bir (Insider) | Bought (not open market) | — |
| May 20, 2026 | Robert J. Spiegel (Insider) | Bought (not open market) | — |
| May 20, 2026 | Susan Molineaux (Insider) | Bought (not open market) | — |
| May 20, 2026 | Elizabeth G. O'Farrell (Insider) | Bought (not open market) | — |
| Apr 13, 2026 | Timothy Williams (C-suite exec) | Bought (not open market) | — |
| Mar 31, 2026 | Robert J. Spiegel (Insider) | Bought (not open market) | $7.8K |
| Mar 25, 2026 | Patricia S Andrews (Insider) | Bought (not open market) | — |
| Mar 25, 2026 | Constantine Chinoporos (Insider) | Bought (not open market) | — |
| Feb 18, 2026 | Michelle Robertson (CFO) | Sold | $19.1K |
| Feb 18, 2026 | Michelle Robertson (CFO) | Bought (not open market) | — |
| Feb 17, 2026 | Michelle Robertson (CFO) | Bought (not open market) | — |
| Feb 17, 2026 | Joseph Eid (VP) | Bought (not open market) | — |
| Dec 31, 2025 | Robert J. Spiegel (Insider) | Bought (not open market) | $7.8K |
| Oct 20, 2025 | Ahmed ElNawawi (C-suite exec) | Bought (not open market) | — |
Who's trading GERN
- Robert J. Spiegel, Insider: other filings, last Sep 30, 2026
- Dawn Carter Bir, Insider: other filings, last May 20, 2026
- Elizabeth G. O'Farrell, Insider: other filings, last May 20, 2026
- John F McDonald, Insider: other filings, last May 20, 2026
- Susan Molineaux, Director: other filings, last May 20, 2026
- Timothy Williams, C-suite exec: other filings, last Apr 13, 2026
- Patricia S Andrews, Insider: other filings, last Mar 25, 2026
- Constantine Chinoporos, Insider: other filings, last Mar 25, 2026
- Michelle Robertson, CFO: sold $19.1K (1 sale), last Feb 18, 2026
- Joseph Eid, VP: other filings, last Feb 17, 2026
- Ahmed ElNawawi, C-suite exec: other filings, last Oct 20, 2025
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