# EDGAR Filing Document

**Accession Number:** 0000824142
**File Stem:** 0001929992-26-000005
**Filing Date:** 2026-3
**Character Count:** 7226
**Document Hash:** 6c870749502abd6cbe2d70a856834215
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001929992-26-000005.hdr.sgml**: 20260316

**ACCESSION NUMBER**: 0001929992-26-000005

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260312

**FILED AS OF DATE**: 20260316

**DATE AS OF CHANGE**: 20260316

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Kidwell Casey
- **CENTRAL INDEX KEY:** 0001929992

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-18953
- **FILM NUMBER:** 26756529

**MAIL ADDRESS:**
- **STREET 1:** 9906 NORTH 108TH EAST PLACE
- **CITY:** OWASSO
- **STATE:** OK
- **ZIP:** 74055
**ISSUER**: 

**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

**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

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] 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**<sup>*</sup><br>Kidwell Casey<br><sub>(Last) (First) (Middle)</sub><br>2425 S YUKON AVE<br><sub>(Street)</sub><br>TULSA, OK 74107<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-03-12 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_Chief Administration Officer_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>AAON, INC. [ AAON ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock, par value $.004 | 2026-03-12 |  | M |  | 1554 | A | 36.13<sup>(1)</sup> | 14216 | D |  |
| Common Stock, par value $.004 | 2026-03-12 |  | S |  | 1554 | D | 90<sup>(1)</sup> | 12662 | D |  |
| Common Stock, par value $.004 | 2026-03-12 |  | M |  | 831 | A | 35.41<sup>(1)</sup> | 13493 | D |  |
| Common Stock, par value $.004 | 2026-03-12 |  | S |  | 831 | D | 90<sup>(1)</sup> | 12662 | D |  |
| Common Stock, par value $.004 | 2026-03-12 |  | M |  | 2840 | A | 62.04<sup>(1)</sup> | 15502 | D |  |
| Common Stock, par value $.004 | 2026-03-12 |  | S |  | 2840 | D | 90<sup>(1)</sup> | 12662 | D |  |
| Common Stock, par value $.004 | 2026-03-12 |  | F |  | 89 | D | 91.51<sup>(1)</sup> | 12573 | D |  |
| Common Stock, par value $.004 | 2026-03-12 |  | F |  | 91 | D | 91.51<sup>(1)</sup> | 12482 | D |  |
| Common Stock, par value $.004 |  |  |  |  |  |  |  | 2208 | I | 401(k) Plan |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Stock Option (Right to Buy) | $36.13 | 2026-03-12 |  | M |  |  | 1554 | 2023-03-15 | 2032-03-15 | Common Stock | 1554 | $36.13 | 0 | D |  |
| Stock Option (Right to Buy) | $35.41 | 2026-03-12 |  | M |  |  | 831 | 2023-05-30 | 2032-05-30 | Common Stock | 831 | $35.41 | 0 | D |  |
| Stock Option (Right to Buy) | $62.04 | 2026-03-12 |  | M |  |  | 2840 | 2024-03-06 | 2033-03-06 | Common Stock | 2840 | $62.04 | 0 | D |  |
| Stock Option (Right to Buy) | $79.73 |  |  |  |  |  |  | 2025-03-11 | 2034-03-11 | Common Stock | 3126 |  | 3126 | D |  |
| Stock Option (Right to Buy) | $82.39 |  |  |  |  |  |  | 2026-03-11 | 2035-03-11 | Common Stock | 3207 |  | 3207 | D |  |

---

### Footnotes:

(1) All shares granted/purchased/converted/sold, as applicable, at an exact price. A breakdown is not applicable.

**Signature:** Casey R. Kidwell  
**Date:** 2026-03-16

### Remarks:

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.**