William H. Baum - 27 May 2026 Form 4 Insider Report for Gevo, Inc. (GEVO)

Reporting relationship: Director
Issuer ticker: GEVO
Reported as of: 27 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 29 May 2026, 17:38:26 UTC
Prior SEC filing: 27 May 2025
Source filing: View source filing
Reporting owner signature: /s/ E. Cabell Massey, Attorney-in-Fact

Key filing fact

William H. Baum filed Form 4 for Gevo, Inc. (GEVO) on 29 May 2026.

Key facts

This page summarizes William H. Baum's Form 4 filing for Gevo, Inc. (GEVO).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 29 May 2026, 17:38.

Change

Previous filing in this sequence was filed on 27 May 2025.
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 0001231857 Primary reporting owner

BAUM WILLIAM H

Relationship: Director
Address: C/O GEVO, INC. 345 INVERNESS DRIVE SOUTH, BUILDING C, SUITE 310, ENGLEWOOD
Signature: /s/ E. Cabell Massey, Attorney-in-Fact
Signature date: 29 May 2026

Reported derivative securities

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

GEVO transaction Derivative

Stock Option

Award

Transaction value
Shares: +80,893
Change %
Price: $0.000000^*
Shares after: 80,893
Date: 27 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 80,893
Exercise price: $1.80
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

Represents stock options that vest on the earlier to occur of (i) the next annual meeting of stockholders or (ii) the first anniversary of the grant date, provided that the reporting person remains in continuous service with the issuer as of the vesting date.