Gevo COO sells 35,196 shares at $1.43 average

Gevo, Inc. President & COO Ryan Christopher Michael reported an open-market sale of 35,196 shares of Common Stock at a weighted average price of $1.4252 per share.

Rhea-AI Filing Summary

Gevo, Inc. President & COO Ryan Christopher Michael reported an open-market sale of 35,196 shares of Common Stock at a weighted average price of $1.4252 per share. According to the footnotes, these shares were sold to cover tax withholding obligations upon vesting of a restricted stock award and were executed under a Rule 10b5-1 trading plan adopted on November 19, 2025.

After the sale, he held 1,279,245 shares directly and 27,868.19 shares indirectly through a 401(k) plan. The filing describes the sale price as a weighted average, reflecting multiple trades between $1.390 and $1.475 per share.

Insider Trade Summary 10b5-1

Net Seller: 35,196 shares

Net Sell 2 txns

Insider Ryan Christopher Michael

Role President & COO

Sold 35,196 shs ($50K)

Type	Security	Shares	Price	Value
Sale	Common Stock	35,196	$1.4252	$50K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 1,279,245 shares (Direct); Common Stock — 27,868.19 shares (Indirect, By 401(k) Plan)

Footnotes (2)

1. F1. Represents shares sold by the Reporting Person to cover tax withholding obligations upon vesting of a restricted stock award. The reported sales were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on November 19, 2025.
2. F2. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.390 to $1.475 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.

Key Figures

Shares sold: 35,196 shares Weighted average sale price: $1.4252 per share Direct holdings after sale: 1,279,245 shares +2 more

5 metrics

Shares sold 35,196 shares Open-market sale of Common Stock on June 12, 2026

Weighted average sale price $1.4252 per share Common Stock sale to cover tax withholding

Direct holdings after sale 1,279,245 shares Common Stock directly owned following June 12, 2026 sale

Indirect 401(k) holdings 27,868.19 shares Common Stock held through 401(k) plan as of June 12, 2026

Price range of trades $1.390 to $1.475 per share Multiple transactions comprising reported weighted average price

Key Terms

restricted stock award, Rule 10b5-1 trading plan, weighted average price, tax withholding obligations, +1 more

5 terms

restricted stock award financial

"Represents shares sold by the Reporting Person to cover tax withholding obligations upon vesting of a restricted stock award."

A restricted stock award is company shares given to an employee or executive that cannot be sold or fully owned until certain conditions—like staying with the company for a set time or hitting performance targets—are met. Think of it as a gift that only becomes yours after you fulfill specific obligations; for investors, these awards matter because they can increase the total shares outstanding when they vest, reveal how management is being paid and motivated, and create potential selling pressure when restrictions lift.

Rule 10b5-1 trading plan regulatory

"The reported sales were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on November 19, 2025."

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

"The reported price in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

tax withholding obligations financial

"Represents shares sold by the Reporting Person to cover tax withholding obligations upon vesting of a restricted stock award."

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

FAQ

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

What insider transaction did Gevo (GEVO) report for President & COO Ryan Christopher Michael?

Gevo’s President & COO, Ryan Christopher Michael, reported selling 35,196 shares of Common Stock. The sale was disclosed as an open-market transaction tied to tax withholding on vested restricted stock, with a weighted average price of $1.4252 per share.

Why did Gevo’s President & COO sell 35,196 GEVO shares?

The shares were sold to cover tax withholding obligations when a restricted stock award vested. This means the transaction was primarily driven by tax requirements rather than discretionary portfolio changes, according to the disclosure’s explanatory footnote.

Was the Gevo (GEVO) insider sale executed under a Rule 10b5-1 plan?

Yes. The filing states the reported sales were effected under a Rule 10b5-1 trading plan adopted on November 19, 2025. Such pre-arranged plans schedule trades in advance, helping separate them from day-to-day market timing decisions.

How many Gevo (GEVO) shares does the insider hold after the reported sale?

Following the sale, Ryan Christopher Michael held 1,279,245 shares of Gevo Common Stock directly. In addition, he held 27,868.19 shares indirectly through a 401(k) plan, as reflected in the holding entry reported for the same date.

What price range did the Gevo (GEVO) insider sale cover?

The weighted average sale price reported was $1.4252 per share. Footnotes explain that multiple trades occurred in a range from $1.390 to $1.475 per share, and detailed trade breakdowns are available upon request from the company or regulators.

What type of security was involved in the latest Gevo (GEVO) Form 4 filing?

All reported transactions involved Gevo’s Common Stock. The filing includes an open-market sale of 35,196 shares and an indirect holding entry for 27,868.19 shares held through a 401(k) plan, both dated June 12, 2026.

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

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Accepted by SEC EDGAR 06/15/2026 - 05:19 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

X

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)

GEVO, INC., 345 INVERNESS DRIVE SOUTH

BUILDING C, SUITE 310

(Street)

ENGLEWOOD COLORADO 80112

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/12/2026

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
Common Stock	06/12/2026		S(1)		35,196	D	$1.4252(2)	1,279,245	D
Common Stock								27,868.19	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. Represents shares sold by the Reporting Person to cover tax withholding obligations upon vesting of a restricted stock award. The reported sales were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on November 19, 2025.

2. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.390 to $1.475 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.

Remarks:

	/s/ E. Cabell Massey, Attorney-in-Fact	06/15/2026
	** 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)