Geron director Robert J. Spiegel acquires 6,351 shares

Robert J. Spiegel, a director of Geron Corp (GERN), acquired 6,351 common shares on September 30, 2026, in lieu of cash compensation for quarterly board retainer and committee fees.

Rhea-AI Filing Summary

Robert J. Spiegel, a director of Geron Corp (GERN), acquired 6,351 common shares on September 30, 2026, in lieu of cash compensation for quarterly board retainer and committee fees. The share count was based on the $1.23 closing price that day. Spiegel directly held 212,161 shares after the transaction.

Insider Trade Summary

Grant/Award: 6,351 shares

Grant/Award 1 txn

Insider Spiegel Robert J.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	6,351	$1.23	$8K

Holdings After Transaction: Common Stock — 212,161 shares (Direct)

Footnotes (1)

1. F1. Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on September 30, 2026 of $1.23 per share.

Key Figures

Common shares acquired: 6,351 shares Closing price used to determine share count: $1.23 per share Direct shares held after transaction: 212,161 shares

3 metrics

Common shares acquired 6,351 shares September 30, 2026

Closing price used to determine share count $1.23 per share September 30, 2026

Direct shares held after transaction 212,161 shares After the September 30, 2026 transaction

Key Terms

in lieu of cash compensation, board of directors' retainer, committee fees

3 terms

in lieu of cash compensation financial

"Shares issued in lieu of cash compensation"

board of directors' retainer financial

"quarterly board of directors' retainer"

committee fees financial

"retainer and committee fees"

FAQ

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How many GERN shares did director Robert J. Spiegel receive?

Robert J. Spiegel acquired 6,351 Geron common shares on September 30, 2026, in lieu of cash compensation for quarterly board retainer and committee fees.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/01/2026 - 04:31 PM Accepted by SEC EDGAR 10/01/2026 - 04:30 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Spiegel Robert J.

(Last) (First) (Middle)

C/O GERON CORPORATION

919 EAST HILLSDALE BOULEVARD, SUITE 250

(Street)

FOSTER CITY CALIFORNIA 94404

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
GERON CORP [ GERN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/30/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/30/2026		A(1)		6,351	A	$1.23(1)	212,161	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on September 30, 2026 of $1.23 per share.

	/s/ Michelle Robertson, Attorney-in-fact for Robert J. Spiegel	10/01/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)