ANDREW J. GRETHLEIN - 12 Sep 2022 Form 4 Insider Report for GERON CORP (GERN)

Role: EVP, Chief Operating Officer
Signature: /s/ Olivia Bloom for Andrew J. Grethlein
Issuer symbol: GERN
Transactions as of: 12 Sep 2022
Net transactions value: +$399,022
Form type: 4
Filing time: 14 Sep 2022, 17:47:45 UTC
Previous filing: 18 Feb 2022
Next filing: 10 Feb 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	GERN	Common Stock	Options Exercise	$3,400	+2,000		$1.70	2,000	12 Sep 2022	Direct	F1
transaction	GERN	Common Stock	Options Exercise	$395,622	+232,719	+11636%	$1.70	234,719	12 Sep 2022	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	GERN	Employee Stock Option (right to buy)	Options Exercise	$0	-2,000	-3%	$0.000000	65,281	12 Sep 2022	Common Stock	2,000	$1.70	Direct	F2
transaction	GERN	Employee Stock Option (right to buy)	Options Exercise	$0	-232,719	-100%	$0.000000^*	0	12 Sep 2022	Common Stock	232,719	$1.70	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The Reporting Person has elected to exercise and hold the shares at this time.
F2	The options were fully vested.