Notice of Proposed Sale · 144

Gevo, Inc.

GEVONASDAQEQUITYCurrent

Notice of Proposed Sale

Filed Aug 6, 2026Accepted Aug 6, 2026, 4:07 PM EDTFiling CIK 1866673Accession 0001972481-26-000247

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Structured filing — 144

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Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.

Proposed-sale notice

Issuer: Gevo, Inc.
Issuer CIK: 0001392380
SEC file number: 001-35073
Phone: 303-858-8358
Person for whose account securities are to be sold: Bowron Kimberly T
Relationships to issuer: Officer
Street: 345 INVERNESS DRIVE SOUTH, BUILDING C
Street (continued): Suite 310
City: ENGLEWOOD
State / country code: CO
Postal code: 80112

Securities proposed for sale

Securities proposed for sale · 1 reported row
Security	Proposed units	Aggregate market value	Units outstanding	Approximate sale date	Exchange	Broker / market maker
Common Stock	10,257	15,855.27	243,411,329	08/06/2026	Nasdaq	Stifel Nicolaus & Company Inc

Broker / market maker — proposed row 1, entry 1

Name: Stifel Nicolaus & Company Inc
Street: 501 N Broadway
City: St. Louis
State / country code: MO
Postal code: 63102

Acquisition of securities to be sold

Acquisition of securities to be sold · 1 reported row
Security	Acquired	Nature of acquisition	Acquired from	Amount acquired	Gift transaction	Payment date	Nature of payment
Common Stock	08/03/2023	Restricted Stock Awards	Issuer	38,515	N	08/06/2026	Equity Compensation

Sales reported in the preceding three months

Sales reported in the preceding three months · 2 reported rows
Seller	Security	Sale date	Amount sold	Gross proceeds
Kimberly Bowron	Common Stock	05/27/2026	25,101	44,173.00
Kimberly Bowron	Common Stock	06/12/2026	15,470	22,048.00

Seller — prior-sale row 1, entry 1

Name: Kimberly Bowron
Street: 345 INVERNESS DRIVE SOUTH BUILDING C
Street (continued): SUITE 310
City: ENGLEWOOD
State / country code: CO
Postal code: 80112

Seller — prior-sale row 2, entry 1

Name: Kimberly Bowron
Street: 345 INVERNESS DRIVE SOUTH BUILDING C
City: ENGLEWOOD
State / country code: CO
Postal code: 80112

Prior-sale reporting

Nothing to report for the preceding three months: N

Notice signature

Notice date: 08/06/2026
Signed: /s/ James Weimer, as a duly authorized representative of STIFEL, as attorney-in-fact for Kimberly Bowron
Plan adoption dates: 11/20/2025

Company context

Gevo is pioneering low-carbon solutions with cost-effective, drop-in fuels that contribute to energy security, abate carbon and strengthen rural communities to drive economic growth. Gevo’s innovative technology can be used to make a variety of renewable products, including sustainable aviation fuel (SAF), motor fuels, chemicals, and other materials that provide U.S.-made solutions. Gevo’s business model includes developing, financing, and operating production facilities that create jobs and revitalize communities. Gevo owns and operates an ethanol plant with an adjacent carbon capture and storage (CCS) facility and Class VI carbon-storage well. Gevo also owns and operates one of the largest dairy-based renewable natural gas (RNG) facilities in the United States, turning by-products into clean, reliable energy. Additionally, Gevo developed the world’s first production facility for specialty alcohol-to-jet (ATJ) fuels and chemicals operating since 2012. Gevo is currently developing the world’s first large-scale ATJ facility to be co-located at our North Dakota site. Gevo’s market-driven “pay-for-performance” approach regarding carbon and other sustainability attributes helps deliver value to our local economies. Through its Verity subsidiary, Gevo provides transparency, accountability, and efficiency in tracking, measuring, and verifying various attributes throughout the supply chain. By strengthening rural economies, Gevo is working to secure a self-sufficient future and to m

Current securities

GEVONASDAQ · EQUITY · Current

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