Constantine Chinoporos - 25 Mar 2026 Form 4 Insider Report for GERON CORP (GERN)

Reporting relationship: Director
Issuer ticker: GERN
Reported as of: 25 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 26 Mar 2026, 17:37:09 UTC
Prior SEC filing: 03 Feb 2026
Next SEC filing: 22 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ Michelle Robertson, Attorney-in-Fact

Key filing fact

Constantine Chinoporos filed Form 4 for GERON CORP (GERN) on 26 Mar 2026.

Key facts

This page summarizes Constantine Chinoporos's Form 4 filing for GERON CORP (GERN).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 26 Mar 2026, 17:37.

Change

Previous filing in this sequence was filed on 03 Feb 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002014509 Primary reporting owner

Chinoporos Constantine

Relationship: Director
Address: C/O GERON CORPORATION, 919 EAST HILLSDALE BOULEVARD, SUITE 250, FOSTER CITY
Signature: /s/ Michelle Robertson, Attorney-in-Fact
Signature date: 26 Mar 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

GERN transaction Derivative

Stock Option (Right to Buy)

Award

Transaction value
Shares: +270,000
Change %
Price: $0.000000^*
Shares after: 270,000
Date: 25 Mar 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 270,000
Exercise price: $1.57
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The option shall vest and become exercisable in three equal annual installments starting on March 25, 2027, subject to the Reporting Person's continuous service (as defined in the Issuer's 2018 Equity Incentive Plan) with the Issuer through each such vesting date.