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  4. [Form 4] Gevo, Inc. Insider Trading Activity

Gevo (NASDAQ: GEVO) COO sells 129,797 shares in pre-planned trades

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

Rhea-AI Filing Summary

Gevo, Inc. President & COO Ryan Christopher Michael reported open-market sales of company common stock. On March 30, 2026, he sold 100,000 shares at a weighted average price of $2.7574 per share. On March 31, 2026, he sold an additional 29,797 shares at a weighted average price of $2.9592 per share.

The filing notes these transactions were carried out under a Rule 10b5-1 trading plan adopted on November 19, 2025, indicating they were pre-scheduled. Following the sales, he directly holds 1,402,141 shares of Gevo common stock and indirectly holds 27,888.95 shares through a 401(k) plan.

Positive

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Negative

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Insider Ryan Christopher Michael
Role President & COO
Sold 129,797 shs ($364K)
Type Security Shares Price Value
Sale Common Stock 29,797 $2.9592 $88K
Sale Common Stock 100,000 $2.7574 $276K
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 1,402,141 shares (Direct); Common Stock — 27,888.95 shares (Indirect, By 401(k) Plan)
Footnotes (1)
  1. The reported transactions 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 $2.75 to $2.78 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.95 to $2.97 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 October 15, 2025 and March 31, 2026, the reporting person (i) acquired 5,932.26 shares of the issuer's common stock under the issuer's 401(k) plan; and (ii) disposed of 51.39 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 March 25, 2026.
Shares sold March 30, 2026 100,000 shares Open-market sale of common stock at weighted average price
Price March 30 sale $2.7574 per share Weighted average sale price, trades between $2.75 and $2.78
Shares sold March 31, 2026 29,797 shares Open-market sale of common stock at weighted average price
Price March 31 sale $2.9592 per share Weighted average sale price, trades between $2.95 and $2.97
Total shares sold 129,797 shares Net common shares sold across reported transactions
Direct holdings after transactions 1,402,141 shares Gevo common stock directly owned by President & COO
Indirect 401(k) holdings 27,888.95 shares Common stock held through company 401(k) plan
Rule 10b5-1 trading plan regulatory
"The reported transactions 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.
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.
401(k) plan financial
"acquired 5,932.26 shares of the issuer's common stock under the issuer's 401(k) plan"
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.
indirect ownership financial
"nature_of_ownership": "By 401(k) Plan""
Form 4 Insider Transactions: What Each Field Means →
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)
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)
Director10% Owner
XOfficer (give title below)Other (specify below)
President & COO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
03/30/2026		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 Stock03/30/2026S(1)100,000D$2.7574(2)1,431,938D
Common Stock03/31/2026S29,797D$2.9592(3)1,402,141D
Common Stock27,888.95(4)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. The reported transactions 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 $2.75 to $2.78 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.95 to $2.97 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.
4. Between October 15, 2025 and March 31, 2026, the reporting person (i) acquired 5,932.26 shares of the issuer's common stock under the issuer's 401(k) plan; and (ii) disposed of 51.39 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 March 25, 2026.
/s/ E. Cabell Massey, Attorney-in-Fact04/01/2026
** 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)

Source: View Original Filing on SEC EDGAR

FAQ

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

Gevo reported that President & COO Ryan Christopher Michael sold common stock in two open-market transactions. He sold 100,000 shares on March 30, 2026 and 29,797 shares on March 31, 2026, according to the Form 4 insider filing.

How many Gevo (GEVO) shares did the COO sell and at what prices?

The COO sold a total of 129,797 Gevo common shares in late March 2026. He sold 100,000 shares at a weighted average price of $2.7574 and 29,797 shares at a weighted average price of $2.9592, based on multiple trade executions.

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

Yes. The filing states the reported transactions were effected pursuant to a Rule 10b5-1 trading plan. The plan was adopted on November 19, 2025, meaning the sale timing was pre-arranged rather than decided spontaneously by the executive.

How many Gevo (GEVO) shares does the COO still own after these sales?

After the reported transactions, the COO directly owns 1,402,141 Gevo common shares. He also has an indirect position of 27,888.95 shares held through the company’s 401(k) plan, based on a statement dated March 25, 2026.

What price ranges did Gevo (GEVO) shares trade at in the COO’s recent sales?

The filing shows the sales were executed over price ranges rather than single prices. On March 30, 2026, trades occurred between $2.75 and $2.78 per share; on March 31, 2026, between $2.95 and $2.97 per share, with reported weighted average prices.