Gary W. Mize - 18 Aug 2025 Form 4 Insider Report for Gevo, Inc. (GEVO)

Role: Director
Signature: /s/ E. Cabell Massey, Attorney-in-Fact
Issuer symbol: GEVO
Transactions as of: 18 Aug 2025
Net transactions value: -$2,750
Form type: 4
Filing time: 19 Aug 2025, 18:00:05 UTC
Previous filing: 27 May 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Mize Gary W.	Director	C/O GEVO, INC. 345 INVERNESS DRIVE SOUTH, BUILDING C, SUITE 310, ENGLEWOOD	/s/ E. Cabell Massey, Attorney-in-Fact	19 Aug 2025	0001530501

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	GEVO	Common Stock	Options Exercise	$150,508	+224,639	+88%	$0.6700	479,785	18 Aug 2025	Direct
transaction	GEVO	Common Stock	Sale	$153,258	-91,459	-19%	$1.68	388,326	18 Aug 2025	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	GEVO	Stock Option	Options Exercise	$0	-224,639	-100%	$0.000000	0	18 Aug 2025	Common Stock	224,639	$0.6700	Direct

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

Explanation of Responses:

Id	Content
F1	The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.67 to $1.76 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Content

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.67 to $1.76 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.