Robert J. Spiegel Geron Corp (GERN) insider trading activity

Robert J. Spiegel is Director of GERON CORP. Currently has a direct ownership of 188,546 shares of GERN, which is worth approximately $239,453. The most recent transaction as insider was on Sep 30, 2025, when has been sold 5,702 shares (Common Stock) at a price of $1.37 per share, resulting in proceeds of $7,811. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 189K

3.12% 3M change

10.79% 12M change

Total Value Held $239,453

Robert J. Spiegel Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Sep 30 2025	BUY Grant, award, or other acquisition	$7,811 $1.37 p/Share	5,702 Added 2.94%	188,546 Common Stock
Jun 30 2025	BUY Grant, award, or other acquisition	$7,811 $1.41 p/Share	5,540 Added 2.94%	182,844 Common Stock
Mar 31 2025	BUY Grant, award, or other acquisition	$7,811 $1.59 p/Share	4,913 Added 2.7%	177,304 Common Stock
Dec 31 2024	SELL Grant, award, or other acquisition	-	2,206 Reduced 1.26%	172,391 Common Stock
Sep 30 2024	SELL Grant, award, or other acquisition	-	1,767 Reduced 1.03%	170,185 Common Stock
Jun 28 2024	SELL Grant, award, or other acquisition	-	1,916 Reduced 1.12%	168,418 Common Stock
Mar 29 2024	SELL Grant, award, or other acquisition	-	2,462 Reduced 1.46%	166,502 Common Stock
Dec 29 2023	BUY Grant, award, or other acquisition	-	3,406 Added 2.03%	164,040 Common Stock
Sep 29 2023	BUY Grant, award, or other acquisition	-	3,390 Added 2.07%	160,634 Common Stock
Jun 30 2023	BUY Grant, award, or other acquisition	-	2,239 Added 1.4%	157,244 Common Stock
Mar 31 2023	BUY Grant, award, or other acquisition	-	3,312 Added 2.09%	155,005 Common Stock
Dec 30 2022	BUY Grant, award, or other acquisition	-	2,970 Added 1.92%	151,693 Common Stock
Sep 30 2022	BUY Grant, award, or other acquisition	-	3,071 Added 2.02%	148,723 Common Stock
Jun 30 2022	BUY Grant, award, or other acquisition	-	4,637 Added 3.09%	145,652 Common Stock
Mar 31 2022	BUY Grant, award, or other acquisition	-	5,284 Added 3.61%	141,015 Common Stock
Dec 31 2021	BUY Grant, award, or other acquisition	-	5,891 Added 4.16%	135,731 Common Stock
Sep 30 2021	BUY Grant, award, or other acquisition	-	5,246 Added 3.88%	129,840 Common Stock
Jun 30 2021	BUY Grant, award, or other acquisition	-	5,097 Added 3.93%	124,594 Common Stock
Mar 31 2021	BUY Grant, award, or other acquisition	-	4,549 Added 3.67%	119,497 Common Stock
Dec 31 2020	BUY Grant, award, or other acquisition	-	4,520 Added 3.78%	114,948 Common Stock
Sep 30 2020	BUY Grant, award, or other acquisition	-	4,130 Added 3.61%	110,428 Common Stock

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Robert J. Spiegel

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Buffalo, NY

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Robert J. Spiegel Geron Corp (GERN) insider trading activity

Robert J. Spiegel Transaction History

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Robert J. Spiegel

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