Form 8-K

8-K — AAON, INC.

Accession: 0000824142-26-000039

Filed: 2026-05-18

Period: 2026-05-12

CIK: 0000824142

SIC: 3585 (AIR COND & WARM AIR HEATING EQUIP & COMM & INDL REFRIG EQUIP)

Item: Submission of Matters to a Vote of Security Holders

Item: Other Events

Item: Financial Statements and Exhibits

Documents

8-K — aaon-20260512.htm (Primary)

EX-99.1 (aaon2026mayannualmeetingdi.htm)

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8-K

8-K (Primary)

Filename: aaon-20260512.htm · Sequence: 1

aaon-20260512

0000824142false00008241422026-05-122026-05-12

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): May 12, 2026

AAON, INC.

(Exact name of Registrant as Specified in Charter)

Nevada 0-18953 87-0448736

(State or Other Jurisdiction (Commission File Number: ) (IRS Employer Identification No.)

of Incorporation)

2425 South Yukon Ave., Tulsa, Oklahoma 74107

(Address of Principal Executive Offices) (Zip Code)

(Registrant's telephone number, including area code): (918) 583-2266

Not Applicable

(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:

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

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

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

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

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 ☐

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. ☐

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

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock AAON NASDAQ

Item 5.07 Submission of Matters to a Vote of Security Holders.

On May 12, 2026, at the Annual Meeting, the Company's stockholders (i) elected each of the nominees listed below to the Company's Board of Directors to serve until the 2029 Annual Meeting of Stockholders, or until their respective successors are elected and qualified; (ii) ratified the selection of Grant Thornton, LLP as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2026; (iii) approved, on an advisory basis, a resolution on the compensation of AAON's named executive officers as set forth in the Proxy Statement; (iv) approved, on an advisory basis, a resolution to conduct future say on pay advisory votes on an annual frequency; and (v) approved the proposal to amend the Company's Articles of Incorporation to increase the maximum size of the Board from nine to eleven directors. The final results for the votes regarding each proposal are set forth below.

(i) The voting results with respect to the election of each director were as follows:

Nominees For Against Abstain Broker Non-Votes

Caron A. Lawhorn 63,511,892 2,173,737 34,823 7,094,863

Stephen O. LeClair 57,224,022 8,470,311 26,119 7,094,863

David R. Stewart 63,477,854 2,206,457 36,141 7,094,863

(ii) The voting results with respect to the ratification of the selection of Grant Thornton, LLP as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2026 were as follows:

For Against Abstain Broker Non-Votes

71,064,229 1,692,536 58,550 —

(iii) The voting results to approve, on an advisory basis, a resolution on the compensation of the Company's named executive officers as set forth in the Proxy Statement were as follows:

For Against Abstain Broker Non-Votes

63,496,580 2,148,606 75,266 7,094,863

(iv) The voting results to approve, on an advisory basis, the frequency of advisory votes on the compensation of our named executive officers were as follows:

One Year Two Years Three Years Abstain

64,209,213 44,436 1,297,811 168,992

(v) The voting results to approve the proposal to amend the Company's Articles of Incorporation to increase the maximum size of the Board from nine to eleven directors were as follows:

For Against Abstain

72,417,102 359,357 38,856

Item 8.01 Other Events.

The Company announced that the Board of Directors has declared its next regular quarterly cash dividend of $0.10 per share or $0.40 annually. The next cash dividend will be payable on June 26, 2026, to stockholders of record as of the close of business on June 5, 2026.

A copy of the Company's press release announcing the quarterly cash dividend is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit Number Description

99.1

Press Release Announcing Quarterly Cash Dividend

104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

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.

AAON, INC.

Date: May 18, 2026 By: /s/ Luke A. Bomer

Luke A. Bomer, General Counsel and Secretary

EX-99.1

Filename: aaon2026mayannualmeetingdi.htm · Sequence: 2

Document

Exhibit 99.1

AAON Announces Quarterly Cash Dividend

TULSA, OK, May 18, 2026 – AAON, Inc. (NASDAQ: AAON) (“AAON” or the “Company”), today announced that its Board of Directors has declared the Company’s next regular quarterly cash dividend of $0.10 per share (or $0.40 annually), payable on June 26, 2026 to stockholders of record as of the close of business on June 5, 2026.

About AAON

Founded in 1988, AAON is a global leader in HVAC solutions for commercial, industrial and data center indoor environments. The company's industry-leading approach to designing and manufacturing highly configurable and custom-made equipment to meet exact needs creates a premier ownership experience with greater efficiency, performance and long-term value. Its highly engineered equipment is sold under the AAON and BASX brands. AAON is headquartered in Tulsa, Oklahoma, where its world-class innovation center and testing lab allows AAON engineers to continuously push boundaries and advance the industry. For more information, please visit https://aaon.com/investors.

Forward-Looking Statements

This press release includes “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as “expects”, “anticipates”, “intends”, “plans”, “believes”, “seeks”, “estimates”, “should”, “will”, and variations of such words and similar expressions are intended to identify such forward-looking statements. These statements are not guarantees of future performance and involve certain risks, uncertainties and assumptions, which are difficult to predict. Therefore, actual outcomes and results may differ materially from what is expressed or forecasted in such forward-looking statements. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date on which they are made. We undertake no obligations to update publicly any forward-looking statements, whether as a result of new information, future events or otherwise. Important factors that could cause results to differ materially from those in the forward-looking statements include (1) the timing and extent of changes in raw material and component prices, (2) the effects of fluctuations in the commercial/industrial new construction market, (3) the timing and extent of changes in interest rates, as well as other competitive factors during the year, and (4) general economic, market or business conditions.

Contact Information

Joseph Mondillo

Director of Investor Relations & Corporate Strategy

Phone (617) 877-6346

Email: joseph.mondillo@aaon.com

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