STOCK TITAN

Gevo (GEVO) President & COO sells shares under Rule 10b5-1 plan

Filing Impact
(High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Gevo, Inc. President & COO Ryan Christopher Michael reported an open-market sale of 87,700 shares of common stock at a weighted average price of $1.7598 per share. According to the filing, 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 directly holds 1,314,441 shares of common stock and indirectly holds 27,868.19 shares through a 401(k) plan, which reflects disposals of 20.76 shares between March 30, 2026 and May 27, 2026 to cover administrative fees.

Positive

  • None.

Negative

  • None.
Insider Ryan Christopher Michael
Role President & COO
Sold 87,700 shs ($154K)
Type Security Shares Price Value
Sale Common Stock 87,700 $1.7598 $154K
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 1,314,441 shares (Direct, null); Common Stock — 27,868.19 shares (Indirect, By 401(k) Plan)
Footnotes (1)
  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. 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. Between March 30, 2026 and May 27, 2026, the reporting person disposed of 20.76 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.
Shares sold 87,700 shares Open-market sale to cover tax withholding on restricted stock vesting
Weighted average sale price $1.7598 per share Common stock sale on May 27, 2026
Price range $1.74–$1.80 per share Range of prices across multiple sale transactions
Direct holdings after sale 1,314,441 shares Common stock directly owned post-transaction
Indirect 401(k) holdings 27,868.19 shares Common stock held via 401(k) plan after disposals
401(k) disposals 20.76 shares Disposed between March 30, 2026 and May 27, 2026 for administrative fees
Net shares sold 87,700 shares Net buy/sell shares in transaction summary
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.
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.
401(k) plan financial
"Between March 30, 2026 and May 27, 2026, the reporting person disposed of 20.76 shares ... 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.
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.
SEC Form 4
FORM 4UNITED 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)
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)
Director10% Owner
XOfficer (give title below)Other (specify below)
President & COO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/27/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock05/27/2026S(1)87,700D$1.7598(2)1,314,441D
Common Stock27,868.19(3)IBy 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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount 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 $1.74 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 March 30, 2026 and May 27, 2026, the reporting person disposed of 20.76 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-Fact05/29/2026
** Signature of Reporting PersonDate
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)

FAQ

What insider transaction did Gevo (GEVO) report for its President & COO?

Gevo reported that President & COO Ryan Christopher Michael sold 87,700 shares of common stock at a weighted average price of $1.7598 per share. The sale was disclosed as part of a Form 4 insider transaction filing with post-transaction holdings also detailed.

Why did Gevo (GEVO) President & COO sell 87,700 shares?

The 87,700 shares were sold to cover tax withholding obligations upon vesting of a restricted stock award. The filing notes these sales were executed under a pre-arranged Rule 10b5-1 trading plan adopted on November 19, 2025.

What is Ryan Christopher Michael’s shareholding in Gevo (GEVO) after the reported sale?

After the reported transactions, Ryan Christopher Michael directly holds 1,314,441 shares of Gevo common stock. He also indirectly holds 27,868.19 shares through the company’s 401(k) plan, according to the Form 4 disclosure.

At what price were the Gevo (GEVO) shares sold in the insider transaction?

The reported sale price is a weighted average of $1.7598 per share. Footnotes state the actual transactions occurred in a range from $1.74 to $1.80 per share, with full breakdowns available upon request.

Were the Gevo (GEVO) insider sales made under a Rule 10b5-1 plan?

Yes. The filing states the reported sales were effected pursuant to a Rule 10b5-1 trading plan adopted by Ryan Christopher Michael on November 19, 2025, indicating the sales were pre-planned rather than discretionary.

What changes occurred in Gevo (GEVO) shares held in the 401(k) plan?

Between March 30, 2026 and May 27, 2026, the reporting person disposed of 20.76 shares of Gevo common stock in the 401(k) plan to cover administrative fees. The reported 401(k) position is based on a plan statement dated May 22, 2026.