Geron awards 2.5M stock options to EVP

Geron Corp reported that EVP and Chief Legal Officer Timothy Williams received a grant of stock options.

Rhea-AI Filing Summary

Geron Corp reported that EVP and Chief Legal Officer Timothy Williams received a grant of stock options. He was awarded options to buy 2,500,000 shares of Geron common stock at an exercise price of $1.73 per share, expiring on April 12, 2036.

According to the vesting terms, 312,500 shares underlying the option will vest on October 13, 2026, with the remaining shares vesting in equal installments over the following 42 months, assuming he continues serving the company on each vesting date. This is a compensation-related award rather than an open-market purchase or sale.

Insider Trade Summary

Grant/Award: 2,500,000 shares

Grant/Award 1 txn

Insider Williams Timothy

Role EVP and Chief Legal Officer

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy)	2,500,000	$0.00	$0.00

Holdings After Transaction: Stock Option (Right to Buy) — 2,500,000 contracts (Direct)

Footnotes (1)

1. F1. This option vests as follows: 312,500 shares underlying the option will vest on October 13, 2026; and the remaining shares will vest over the following 42 months in equal installments, provided that the Reporting Person provides continuous service to the Issuer on each such vesting date.

Key Figures

Option grant size: 2,500,000 options Exercise price: $1.73 per share Initial vesting tranche: 312,500 shares +3 more

6 metrics

Option grant size 2,500,000 options Stock Option (Right to Buy) granted to Timothy Williams

Exercise price $1.73 per share Exercise price of options on Geron common stock

Initial vesting tranche 312,500 shares Underlying shares vesting on October 13, 2026

Vesting period for remainder 42 months Remaining option shares vest in equal installments

Expiration date April 12, 2036 Option term for the stock option grant

Shares underlying options 2,500,000 shares Underlying Geron common stock tied to the option

Key Terms

Stock Option (Right to Buy), exercise price, vesting, expiration date, +1 more

5 terms

Stock Option (Right to Buy) financial

"security_title: Stock Option (Right to Buy)"

exercise price financial

"conversion_or_exercise_price: 1.7300"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

vesting financial

"This option vests as follows: 312,500 shares underlying the option will vest on October 13, 2026; and the remaining shares will vest over the following 42 months"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

expiration date financial

"expiration_date: 2036-04-12T00:00:00.000Z"

The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Geron (GERN) report for Timothy Williams?

Geron reported that EVP and Chief Legal Officer Timothy Williams received a grant of stock options. He was awarded options covering 2,500,000 shares of Geron common stock as compensation, rather than buying or selling shares in the open market.

What is the exercise price of Timothy Williams’ new Geron stock options?

The stock options granted to Timothy Williams have an exercise price of $1.73 per share. This means he can purchase Geron common shares at $1.73 once the options vest, subject to the award’s vesting schedule and his continued service with the company.

How many Geron shares are covered by Timothy Williams’ stock option grant?

The option grant covers 2,500,000 shares of Geron common stock. These are derivative securities, giving Williams the right to buy shares in the future at a fixed price, rather than immediate ownership of common stock today.

When do Timothy Williams’ Geron stock options start vesting?

The options begin vesting on October 13, 2026, when 312,500 underlying shares vest. The remaining option shares vest in equal installments over the following 42 months, provided Timothy Williams continues to serve Geron on each scheduled vesting date.

When do Timothy Williams’ Geron stock options expire?

The stock options granted to Timothy Williams expire on April 12, 2036. After this expiration date, any unexercised portion of the option can no longer be used to purchase Geron common stock at the stated $1.73 exercise price.

Is Timothy Williams’ Form 4 transaction a stock purchase or sale of Geron shares?

The Form 4 reflects a grant of stock options, not a purchase or sale of common shares. It is classified as a grant or award acquisition, giving Timothy Williams the right to buy Geron stock in the future once the options vest.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 04/14/2026 - 08:14 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^*

Williams Timothy

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP and Chief Legal Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/13/2026

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

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
Stock Option (Right to Buy)	$1.73	04/13/2026		A		2,500,000		(1)	04/12/2036	Common Stock	2,500,000	$0	2,500,000	D

Explanation of Responses:

1. This option vests as follows: 312,500 shares underlying the option will vest on October 13, 2026; and the remaining shares will vest over the following 42 months in equal installments, provided that the Reporting Person provides continuous service to the Issuer on each such vesting date.

	/s/ Timothy Williams	04/14/2026
	** 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)