Geron Corp insider trading

Every open-market purchase and sale by Geron Corp's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

Insider purchases, 5 years $0 0 trades by 0 insiders Insider sales, 5 years $19,119 1 trade by 1 insider 3 months later: median −35.1% (−43.4% vs S&P 500)

No insider has bought shares on the open market in five years.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.

Geron Corp insider open-market trades
Date	Insider	Trade	Shares	Price	Value	1M after	3M after	6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Geron Corp’s insiders pay?

From April 30, 2010 to February 19, 2026, 20 insiders reported 10 open-market purchases and 37 sales not made under a pre-set plan in Geron Corp. After sales, the shares moved −43.5% against the index over 12 months (a negative figure means selling was the right call).

Geron Corp: each insider's record
Insider	Role	Purchases	12 months after their purchases	Beat the S&P 500	Sales	12 months after their sales	Latest report
Behrs Melissa Kelly	EVP Portfolio & Alliance Mgmt	0	—	—	8	−44.7% (1)	May 30, 2014
Earp David	SVP, Corp Transactions	0	—	—	5	−44.7% (1)	June 1, 2012
Greenwood David	President, Interim CEO, CFO	0	—	—	4	−44.7% (1)	June 16, 2011
Kelsey Stephen Michael	EVP, R&D Head, CMO	0	—	—	4	−36.6% (1)	June 1, 2012
Lebkowski Jane	SVP, Chief Scientific Officer	0	—	—	4	−44.7% (1)	June 16, 2011
Bloom Olivia Kyusuk	EVP, Chief Financial Officer	0	—	—	3	—	April 2, 2014
Kiley Thomas	Director	2	—	—	0	—	November 23, 2011
O'farrell Elizabeth G.	Director	2	—	—	0	—	August 24, 2023
Okarma Thomas	President and CEO	0	—	—	2	−44.7% (1)	June 3, 2010
Scarlett John A	Chairman, President and CEO	2	—	—	0	—	March 3, 2025
Spink Katharine E.	SVP Alliance Mgmt & Operations	0	—	—	2	−44.7% (1)	June 16, 2011
Bradbury Daniel	Director	1	—	—	0	—	May 12, 2014
Feller Faye	EVP, Chief Medical Officer	0	—	—	1	—	June 12, 2024
Grethlein Andrew J	EVP, Chief Operating Officer	0	—	—	1	—	July 10, 2024
Hofstaetter Thomas	Director	0	—	—	1	—	March 19, 2015
Kapur Anil	EVP, Corp Strategy & CCO	0	—	—	1	—	June 12, 2024
Lawlis V Bryan	Director	1	—	—	0	—	May 13, 2025
Robertson Michelle	EVP, CHIEF FINANCIAL OFFICER	0	—	—	1	—	February 19, 2026
Samuels Scott Alan	EVP, Chief Legal Officer	1	—	—	0	—	March 3, 2025
Ziegler James	EVP, Chief Commercial Officer	1	—	—	0	—	March 3, 2025

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded Geron Corp

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Geron Corp in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After 1 selling crowd, −2.1%. One company's history is too short to judge by; the test across every company is the better guide.

Month	Crowd	3 months on, vs S&P 500	6 months	12 months
May 28, 2010	6 selling	−5.4%	−2.1%	−40.2%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Total returns from the month end; past patterns are not a forecast.

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