GEVO COO sells 100,000 shares at $2.8187 under 10b5-1 plan

Gevo (GEVO) reported an insider transaction by its President & COO.

Rhea-AI Filing Summary

Gevo (GEVO) reported an insider transaction by its President & COO. On October 15, 2025, the officer sold 100,000 shares of common stock at a weighted average price of $2.8187 per share, executed under a Rule 10b5-1 trading plan adopted on November 26, 2024.

Following the sale, the officer beneficially owns 1,531,938 shares directly and 22,008.08 shares indirectly through a 401(k) plan. The filing notes that 8.60 shares were disposed between September 4, 2025 and October 15, 2025 from the 401(k) to cover administrative fees.

Insider Trade Summary

Net Seller: 100,000 shares

Net Sell 2 txns

Insider Ryan Christopher Michael

Role President & COO

Sold 100,000 shs ($282K)

Type	Security	Shares	Price	Value
Sale	Common Stock	100,000	$2.8187	$282K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 1,531,938 shares (Direct); Common Stock — 22,008.08 shares (Indirect, By 401(k) Plan)

Footnotes (3)

1. F1. The reported sales were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on November 26, 2024.
2. F2. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.75 to $2.89 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.
3. F3. Between September 4, 2025 and October 15, 2025, the reporting person disposed of 8.60 shares of the issuer's common stock under the issuer's 401(k) plan to cover administrative fees. The information in this report is based on a plan statement dated September 25, 2025.

FAQ

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

What insider transaction did GEVO report on Form 4?

The President & COO sold 100,000 shares of common stock on October 15, 2025 at a weighted average price of $2.8187.

Was the GEVO insider sale under a 10b5-1 plan?

Yes. The sales were made under a Rule 10b5-1 trading plan adopted on November 26, 2024.

How many GEVO shares does the officer hold after the sale?

Post-transaction holdings are 1,531,938 shares directly and 22,008.08 shares indirectly via a 401(k) plan.

What price did the GEVO shares sell for?

The reported price is a weighted average of $2.8187, with individual trades ranging from $2.75 to $2.89.

Why did the 401(k) holdings change slightly?

Between September 4, 2025 and October 15, 2025, 8.60 shares were disposed to cover administrative fees.

Who filed the GEVO Form 4?

It was filed for the company’s President & COO, who is an officer of Gevo, Inc..

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

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Accepted by SEC EDGAR 10/15/2025 - 12:00 AM 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).

X

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^*

Ryan Christopher Michael

(Last) (First) (Middle)

C/O GEVO, INC. 345 INVERNESS DRIVE SOUTH

BUILDING C, SUITE 310

(Street)

ENGLEWOOD CO 80112

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Gevo, Inc. [ GEVO ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
10/15/2025

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

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

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

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	10/15/2025		S(1)		100,000	D	$2.8187(2)	1,531,938	D
Common Stock								22,008.08(3)	I	By 401(k) Plan

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. The reported sales were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on November 26, 2024.

2. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.75 to $2.89 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.

3. Between September 4, 2025 and October 15, 2025, the reporting person disposed of 8.60 shares of the issuer's common stock under the issuer's 401(k) plan to cover administrative fees. The information in this report is based on a plan statement dated September 25, 2025.

	/s/ E. Cabell Massey, Attorney-in-Fact	10/15/2025
	** 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.