GERN
insider transactionsGERON CORP — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
-9.9K
0 buy · 9.9K sell
Net value · 365d
-$19.1K
$0 in · $19.1K out
Sentiment · 365d
Net selling
0% buying · 100% selling
Open-market trades · 365d
1
0 buy · 9.9K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Grant·A
Director
$0
220.0K sh
Own New
-
Grant·A
Director
$0
220.0K sh
Own New
-
Grant·A
Director
$0
220.0K sh
Own New
-
Grant·A
Director
$0
220.0K sh
Own New
-
Grant·A
EVP and Chief Legal Officer
$0
2.5M sh
Own New
-
Grant·A
Director
$7.8K
5.2K sh · $1.49
Own +3%
-
Grant·A
Director
$0
270.0K sh
Own New
-
Exercise·M
EVP, CHIEF FINANCIAL OFFICER
$0
27.5K sh
Own +50%
-
Sell·S
EVP, CHIEF FINANCIAL OFFICER
$19.1K
9.9K sh · $1.94
Own -36%
-
Exercise·M
EVP, CHIEF FINANCIAL OFFICER
$0
27.5K sh
Own New
-
Grant·A
EVP, CHIEF FINANCIAL OFFICER
$0
1.7M sh
Own New
-
Grant·A
EVP, R&D; Chief Medical Office
$0
2.2M sh
Own New
-
Grant·A
Director
$7.8K
5.9K sh · $1.32
Own +3%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| May 20, 2026 | John F Mcdonald | Grant A | 220.0K | $0 |
| May 20, 2026 | Elizabeth G. O'Farrell | Grant A | 220.0K | $0 |
| May 20, 2026 | Susan Molineaux | Grant A | 220.0K | $0 |
| May 20, 2026 | Robert J. Spiegel | Grant A | 220.0K | $0 |
| Apr 13, 2026 | Timothy Williams | Grant A | 2.5M | $0 |
| Mar 31, 2026 | Robert J. Spiegel | Grant A | 5.2K | $7.8K |
| Mar 25, 2026 | Constantine Chinoporos | Grant A | 270.0K | $0 |
| Feb 18, 2026 | Michelle Robertson KEY | Exercise M | 27.5K | $0 |
| Feb 18, 2026 | Michelle Robertson KEY | Sell S | 9.9K | $19.1K |
| Feb 18, 2026 | Michelle Robertson KEY | Exercise M | 27.5K | $0 |
| Feb 17, 2026 | Michelle Robertson KEY | Grant A | 1.7M | $0 |
| Feb 17, 2026 | Joseph Eid | Grant A | 2.2M | $0 |
| Dec 31, 2025 | Robert J. Spiegel | Grant A | 5.9K | $7.8K |
About GERN insider trading
This page tracks insider transactions for GERON CORP (GERN) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.