Gevo chief of staff sells 25,101 shares for taxes

Gevo, Inc. Chief of Staff Kimberly T. Bowron reported an open-market sale of 25,101 shares of common stock at a weighted average price of $1.7598 per share on May 27, 2026.

Rhea-AI Filing Summary

Gevo, Inc. Chief of Staff Kimberly T. Bowron reported an open-market sale of 25,101 shares of common stock at a weighted average price of $1.7598 per share on May 27, 2026. According to the footnotes, these shares were sold to cover tax withholding obligations upon the vesting of a restricted stock award and were executed under a Rule 10b5-1 trading plan adopted on November 20, 2025.

Following the sale, Bowron directly holds 711,765 shares of Gevo common stock. She also indirectly holds 14,973.97 shares through a 401(k) plan, where a separate disposal of 5.59 shares between May 20 and May 27, 2026 was made to cover plan administrative fees.

Insider Trade Summary 10b5-1

Net Seller: 25,101 shares

Net Sell 2 txns

Insider Bowron Kimberly T

Role Chief of Staff

Sold 25,101 shs ($44K)

Type	Security	Shares	Price	Value
Sale	Common Stock	25,101	$1.7598	$44K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 711,765 shares (Direct); Common Stock — 14,973.97 shares (Indirect, By 401(k) Plan)

Footnotes (3)

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 20, 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 $1.74 to $1.80 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 May 20, 2026 and May 27, 2026, the reporting person disposed of 5.59 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 May 22, 2026.

Key Figures

Shares sold: 25,101 shares Weighted average sale price: $1.7598 per share Post-transaction direct holdings: 711,765 shares +3 more

6 metrics

Shares sold 25,101 shares Open-market sale on May 27, 2026

Weighted average sale price $1.7598 per share Common stock sale by Kimberly T. Bowron

Post-transaction direct holdings 711,765 shares Common stock held directly after sale

Indirect 401(k) holdings 14,973.97 shares Common stock held via 401(k) plan

401(k) shares disposed 5.59 shares Disposed between May 20–27, 2026 for administrative fees

Sale price range $1.74–$1.80 per share Price range for multiple sale transactions

Key Terms

Rule 10b5-1 trading plan, restricted stock award, weighted average price, 401(k) plan, +1 more

5 terms

Rule 10b5-1 trading plan financial

"The reported sales were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on November 20, 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.

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.

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.

401(k) plan financial

"Between May 20, 2026 and May 27, 2026, the reporting person disposed of 5.59 shares of the issuer's common stock under the issuer's 401(k) plan to cover administrative fees."

A 401(k) plan is a workplace retirement account that lets employees set aside part of their pay into a tax-advantaged savings pot, often with employers adding matching contributions — like a workplace piggy bank for future income. It matters to investors because the amount people save and how employers fund these plans influence consumer spending, corporate payroll costs and the flow of money into financial markets, which can affect stock prices and company valuations.

administrative fees financial

"disposed of 5.59 shares of the issuer's common stock under the issuer's 401(k) plan to cover administrative fees."

FAQ

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

What insider transactions did Gevo (GEVO) report for Kimberly T. Bowron?

Gevo reported that Chief of Staff Kimberly T. Bowron sold 25,101 shares of common stock on May 27, 2026. The filing also notes a small disposal of 5.59 shares in her 401(k) plan to cover administrative fees.

Why did Gevo (GEVO) executive Kimberly Bowron sell 25,101 shares?

The 25,101-share sale by Kimberly Bowron was made to cover tax withholding obligations when a restricted stock award vested. The filing specifies that these sales were executed under a pre-arranged Rule 10b5-1 trading plan adopted on November 20, 2025.

At what price were Kimberly Bowron’s Gevo (GEVO) shares sold?

Kimberly Bowron’s 25,101 Gevo shares were sold at a weighted average price of $1.7598 per share. A footnote explains the trades occurred in multiple transactions between $1.74 and $1.80 per share, with detailed breakdowns available on request.

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

After the reported transactions, Kimberly Bowron directly holds 711,765 shares of Gevo common stock. She also indirectly owns 14,973.97 shares through a 401(k) plan, reflecting a modest reduction of 5.59 shares for plan administrative fees.

Was Kimberly Bowron’s Gevo (GEVO) share sale under a 10b5-1 trading plan?

Yes. The filing states the 25,101-share sale was carried out under a Rule 10b5-1 trading plan adopted on November 20, 2025. Such plans pre-schedule trades, indicating the timing of these tax-related sales was established in advance.

What does the Gevo (GEVO) Form 4 say about Kimberly Bowron’s 401(k) holdings?

The Form 4 shows Kimberly Bowron indirectly holds 14,973.97 Gevo shares in a 401(k) plan. Between May 20 and May 27, 2026, she disposed of 5.59 shares in that plan to pay administrative fees, based on a plan statement dated May 22, 2026.

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

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Accepted by SEC EDGAR 05/29/2026 - 05:35 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

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^*

Bowron Kimberly T

(Last) (First) (Middle)

C/O 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)
	Chief of Staff

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/27/2026

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	05/27/2026		S(1)		25,101	D	$1.7598(2)	711,765	D
Common Stock								14,973.97(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. 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 20, 2025.

2. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.74 to $1.80 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 May 20, 2026 and May 27, 2026, the reporting person disposed of 5.59 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 May 22, 2026.

Remarks:

	/s/ E. Cabell Massey, Attorney-in-Fact	05/29/2026
	** 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)