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Form 8-K

sec.gov

8-K — Gevo, Inc.

Accession: 0001628280-26-067732

Filed: 2026-10-28

Period: 2026-10-23

CIK: 0001392380

SIC: 2860 (INDUSTRIAL ORGANIC CHEMICALS)

Item: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — gevo-20261023.htm (Primary)

EX-99.1 (klynnejohnsonboardannounce.htm)

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8-K

8-K (Primary)

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 23, 2026

Gevo, Inc.

(Exact name of registrant as specified in its charter)

Delaware 001-35073 87-0747704

(State or other jurisdiction

of incorporation) (Commission File Number) (IRS Employer

Identification No.)

345 Inverness Drive South, Building C, Suite 310 Englewood, CO 80112

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (303) 858-8358

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading symbol Name of exchange on which registered

Common Stock, par value $0.01 per share GEVO The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

Effective as of November 4, 2026, the Board of Directors (the “Board”) of Gevo, Inc. (“Gevo” or the “Company”) approved the appointment of K’Lynne Johnson to the Board as a Class II director, with a current term that will expire at the annual meeting of stockholders to be held in 2027. Ms. Johnson will receive an annual cash retainer of $85,000 and an equity grant valued at $63,000 for service as a non-employee director, subject to the Company’s compensation policy for non-employee directors as specified from time to time by the Board. The equity award will be made pursuant to the Company’s Amended and Restated 2010 Stock Incentive Plan. Ms. Johnson will also be eligible to receive annual grants of equity and other compensation consistent with the Company’s compensation policy for her service as a non-employee director, as specified from time to time by the Board. Ms. Johnson also entered into the Company’s customary form of indemnification agreement upon her appointment to the Board.

There are no understandings or arrangements with any person pursuant to which Ms. Johnson was selected as a director, and Ms. Johnson is not party to any related party transaction required to be reported pursuant to Item 404(a) of Regulation S-K.

The Board considered the independence of Ms. Johnson under The Nasdaq Stock Market LLC (“Nasdaq”) listing standards and concluded that Ms. Johnson is an independent director under the applicable Nasdaq standards.

Item 7.01. Regulation FD.

The Company issued the press release attached hereto as Exhibit 99.1 in connection with the appointment of Ms. Johnson to the Board.

The information included in this Current Report under Item 7.01, including Exhibit 99.1, is deemed to be “furnished” and shall not be “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, and is not incorporated by reference into any filing under the Securities Act or the Exchange Act.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No. Description

99.1

Press release, dated October 28, 2026

104 Cover Page Interactive Data File (Formatted as Inline XBRL)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

GEVO, INC.

Date: October 28, 2026 By: /s/ E. Cabell Massey

E. Cabell Massey

Vice President, Deputy General Counsel and Corporate Secretary

EX-99.1

EX-99.1

Filename: klynnejohnsonboardannounce.htm · Sequence: 2

Document

Exhibit 99.1

345 Inverness Drive South

Building C, Suite 310

Englewood, CO 80112

t 303-858-8358

f 303-858-8431

gevo.com

FOR IMMEDIATE RELEASE

Gevo Announces Appointment of K’Lynne Johnson to Board of Directors

ENGLEWOOD, Colo. – October 28, 2026 – Gevo, Inc. (NASDAQ: GEVO) today announced the appointment of K’Lynne Johnson to its Board of Directors. Johnson brings more than three decades of innovation and executive leadership experience spanning sustainable technologies, global research and development, manufacturing operations, and enterprise transformation.

“K’Lynne brings a powerful combination of strategic, operational and governance experience to Gevo,” said Gevo Chief Executive Officer Paul Bloom. “She understands what it takes to commercialize new technologies, scale industrial businesses and navigate significant transformation. Her experience and perspective will be invaluable as we execute Gevo’s next phase of growth and value creation.”

Johnson is an entrepreneurial leader who has successfully delivered results in both building new businesses and transforming existing large traditional commodity organizations. In addition, she has deep experience developing motivated, capable managers, teams and individuals while aligning global, complex organizations to deliver positive results.

Johnson is founder and former President and Chief Executive Officer of Elevance Renewable Sciences, Inc., a specialty chemicals company that developed and commercialized a proprietary technology platform using biobased feedstocks to produce alternatives to conventional petrochemicals and oleochemicals. Before joining Elevance, Johnson held senior leadership roles at BP Innovene Inc., BP Chemicals, and Amoco Corporation.

Johnson currently serves as a director of FMC Corporation, Trinseo PLC, J.M. Huber Corporation, and BlueScope Steel Limited. She also serves as independent board chair of DMC Biotechnologies and previously served on the boards of TPC Group, Sylvatex Corporation, and The Morton Arboretum.

“Gevo has assembled a differentiated portfolio of technologies and operating assets creating meaningful value across low-carbon fuel and carbon markets,” said Johnson. “I am pleased to join the Board and look forward to working with my fellow directors and the management team as Gevo continues to execute its strategy, develop its businesses and pursue long-term growth.”

Johnson holds a Master of Organizational Behavior from the Brigham Young University Marriott School of Management and a Bachelor of Science in Psychology from Brigham Young University.

The addition of K’Lynne Johnson to the Gevo Board of Directors is effective November 4.

About Gevo

Gevo is a next-generation diversified energy company committed to fueling America’s future 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 make sure value is brought to the market.

For more information, please go to www.gevo.com.

Forward-Looking Statements

Certain statements in this press release may constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements relate to a variety of matters, without limitation, including the appointment of K’Lynne Johnson, and other statements that are not purely statements of historical fact. These forward-looking statements are made on the basis of the current beliefs, expectations and assumptions of the management of Gevo and are subject to significant risks and uncertainty. Investors are cautioned not to place undue reliance on any such forward-looking statements. All such forward-looking statements speak only as of the date they are made, and Gevo undertakes no obligation to update or revise these statements, whether as a result of new information, future events or otherwise. Although Gevo believes that the expectations reflected in these forward-looking statements are reasonable, these statements involve many risks and uncertainties that may cause actual results to differ materially from what may be expressed or implied in these forward-looking statements. For a further discussion of risks and uncertainties that could cause actual results to differ from those expressed in these forward-looking statements, as well as risks relating to the business of Gevo in general, see the risk disclosures in the Annual Report on Form 10-K of Gevo for the year ended December 31, 2025, and in subsequent reports on Forms 10-Q and 8-K and other filings made with the U.S. Securities and Exchange Commission by Gevo.

Media Contact

Communications@gevo.com

IR Contact

IR@Gevo.com

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