# EDGAR Filing Document

**Accession Number:** 0000824142
**File Stem:** 0000824142-25-000203
**Filing Date:** 2025-12
**Character Count:** 10044
**Document Hash:** ed3bb7a006e1cd80014bf16d370efadf
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000824142-25-000203.hdr.sgml**: 20251201

**ACCESSION NUMBER**: 0000824142-25-000203

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 14

**CONFORMED PERIOD OF REPORT**: 20251125

**ITEM INFORMATION**: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20251201

**DATE AS OF CHANGE**: 20251201

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AAON, INC.
- **CENTRAL INDEX KEY:** 0000824142
- **STANDARD INDUSTRIAL CLASSIFICATION:** AIR COND & WARM AIR HEATING EQUIP & COMM & INDL REFRIG EQUIP [3585]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 870448736
- **STATE OF INCORPORATION:** NV
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-18953
- **FILM NUMBER:** 251539406

**BUSINESS ADDRESS:**
- **STREET 1:** 2425 SOUTH YUKON AVE.
- **CITY:** TULSA
- **STATE:** OK
- **ZIP:** 74107
- **BUSINESS PHONE:** 9185832266

**MAIL ADDRESS:**
- **STREET 1:** 2425 SOUTH YUKON AVE.
- **CITY:** TULSA
- **STATE:** OK
- **ZIP:** 74107

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AAON INC
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** DIAMOND HEAD RESOURCES INC
- **DATE OF NAME CHANGE:** 19900808

?xml version='1.0' encoding='ASCII'? aaon-20251125

**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): November 25, 2025

**AAON, INC.** 

(Exact name of Registrant as Specified in Charter)

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Nevada** | **Nevada** | **Nevada** | **0-18953** | **87-0448736** |
| (State or Other Jurisdiction | (State or Other Jurisdiction | (State or Other Jurisdiction | (Commission File Number:) | (IRS Employer Identification No.) |
| of Incorporation) | of Incorporation) | of Incorporation) |  |  |
| **2425 South Yukon Ave.,** | **Tulsa,** | **Oklahoma** |  | **74107** |
| (Address of Principal Executive Offices) | (Address of Principal Executive Offices) | (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:

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

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

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

☐&nbsp;&nbsp;&nbsp;&nbsp;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 <br> <u>Common Stock</u> <u>AAON</u> <u>NASDAQ</u>

------

**Item 5.02&nbsp;&nbsp;&nbsp;&nbsp;Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers**

*(c) Appointment of certain Officers*

On December 1, 2025, AAON, Inc. (the "Company") announced that its Board of Directors has promoted Doug Wichman to the position of Executive Vice President and General Manager of its AAON business unit effective January 1, 2026.

Mr. Wichman has been with the Company since 2012, most recently serving as Executive Director of Manufacturing since November 2024. Prior to that, he served as Executive Vice President of AAON Coil Products from 2022 to 2024, AAON's Director of Manufacturing in Tulsa and Plant Manager from 2017 to 2018.

In connection with Mr. Wichman's new role, he will receive the following compensation: (i) annual base salary of $350,000, (ii) 2026 target annual incentive compensation of $210,000, and (iii) 2026 target long-term incentive compensation of $330,000.

Mr. Wichman does not have any family relationships with any of the Company's directors or officers and is not party to any transactions of the type listed in Item 404(a) of Regulation S-K.

Stephen Wakefield, who currently serves as Executive Vice President and General Manager of the AAON business unit, will transition to AAON Fellow, Principal Engineering Advisor, also effective January 1, 2026.

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

**Item 9.01&nbsp;&nbsp;&nbsp;&nbsp;Financial Statements and Exhibits.**

(d)&nbsp;&nbsp;&nbsp;&nbsp;*Exhibits*

---

| | |
|:---|:---|
| Exhibit Number | Description |
| <u>[99.1](aaon2025dougwichmanpromoti.htm)</u> | Press Release Announcing Leadership Appointment |
| 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.** | **AAON, INC.** |
| Date: | December 1, 2025 | By: | /s/ Luke A. Bomer |
|  |  |  | Luke A. Bomer, Secretary |

---

## Exhibit 99.1

**Exhibit 99.1**

![aaona01a.jpg](aaona01a.jpg)

**AAON Announces Promotion of Doug Wichman to EVP & General Manager Role**

TULSA, OK, December 1, 2025 — AAON, Inc. (NASDAQ: AAON) ("AAON" or the "Company"), a leader in high-performance and energy-efficient HVAC solutions, announced the promotion of Doug Wichman to executive vice president and general manager of its AAON Business Unit effective January 1, 2026.

In this role, Wichman will lead the teams responsible for translation of corporate objectives into strategic business plans, development and implementation of product roadmaps, oversight of engineering and R&D for semi-custom HVAC solutions, and provision of technical support to channel partners and end-users. Wichman also will collaborate with leaders in sales and operations on the marketing and sale of AAON systems, production of systems to meet customer demand, and procurement of materials and components needed for configurable systems.

Wichman succeeds longtime AAON- and industry-leader Stephen Wakefield, who is moving into an exclusive consultancy role with the Company as an AAON Fellow and principal engineering advisor, also effective January 1.

"We are excited for Doug to take on this role at AAON," said Matt Tobolski, AAON president and CEO. "Doug's professional growth during the past 13 years epitomizes the opportunity our company provides for team members. With each new assignment, Doug has expanded his technical knowledge and his leadership abilities, making him the right person to succeed Stephen Wakefield. All of us on the leadership team are thrilled Stephen has graciously agreed to serve as an ongoing consultant for our organization even while he enjoys more time with his family."

Wichman started with AAON in 2012 as a production and manufacturing engineer based in Tulsa. He eventually became plant manager and director of manufacturing before relocating to Texas four years ago to lead AAON's Longview facility. This past fall, Wichman returned to Tulsa to work alongside Wakefield as the vice president of business strategy and performance for the AAON Business Unit.

"In my tenure with AAON I have had the privilege to learn, experience, and lead many facets of the business as well as many talented teams," Wichman said. "Collaboration, innovation, and a sense of fearlessness have been core to our success. The individuals within our organization exemplify industry-leading talent and fuel the trajectory we are on. Leveraging this talent, building collaborative relationships, and staying true to innovation will be key to our future."

That future will continue to be shaped by Stephen Wakefield, who will draw upon more than 25 years of experience across all aspects of operations, engineering, and product design in his new role as principal engineering advisor.

"AAON has long been defined by grit, great ideas, and the determination to push through challenges," Wakefield said. "The growth and evolution we've seen – especially in the past few years – are the product of those ingredients. Doug has those exact same qualities, and I look forward to continuing to support him and the entire AAON organization in the years ahead."

**About AAON**

Founded in 1988, AAON is a world leader in HVAC solutions for commercial and industrial indoor environments. The Company's industry-leading approach to designing and manufacturing highly configurable equipment to meet exact needs creates a premier ownership experience with greater efficiency, performance, and long-term value. AAON is headquartered in Tulsa, Oklahoma, where its world-class innovation center and testing lab allow AAON engineers to continuously push boundaries and advance the industry. For more information, please visit www.aaon.com.

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