AAON (AAON) EVP logs 102-share tax withholding and retains large options

Rhea-AI Filing Summary

AAON, INC. Executive Vice President Gordon Douglas Wichman reported a small tax-related share disposition. On 2026-03-06, 102 shares of common stock were disposed of at $88.33 per share to cover tax obligations, leaving 10,217 shares held directly. He also continues to hold several stock option awards, including rights over 24,250 underlying shares at an exercise price of $27.58 expiring on 2029-03-11, and indirect ownership of 4,510 shares through a 401(k) plan.

Insights

Equity compensation analyst

Routine tax withholding disposition; overall insider equity position remains substantial.

AAON Executive Vice President Gordon Douglas Wichman reported a Form 4 entry showing 102 common shares disposed at $88.33 per share. The transaction is coded F, meaning shares were withheld to satisfy tax obligations rather than sold in the open market.

After this event, he holds 10,217 common shares directly and 4,510 shares indirectly via a 401(k) plan. He also retains multiple stock option grants, including 24,250 underlying shares at $27.58 expiring on 2029-03-11, and additional options with exercise prices up to $82.39 extending to 2035-03-11. This pattern is characteristic of routine equity compensation management, not discretionary buying or selling.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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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^*

Wichman Gordon Douglas

(Last) (First) (Middle)

2425 S YUKON AVE

(Street)

TULSA OK 74107

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
AAON, INC. [ AAON ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Executive Vice President

3. Date of Earliest Transaction (Month/Day/Year)
03/06/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, par value $.004	03/06/2026		F		102	D	$88.33(1)	10,217	D
Common Stock, par value $.004								4,510	I	401(k) Plan

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	$27.58							03/11/2020	03/11/2029	Common Stock	24,250		24,250	D
Stock Option (Right to Buy)	$29.48							03/11/2021	03/11/2030	Common Stock	15,780		15,780	D
Stock Option (Right to Buy)	$48.91							03/11/2022	03/11/2031	Common Stock	6,106		6,106	D
Stock Option (Right to Buy)	$36.13							03/15/2023	03/15/2032	Common Stock	5,670		5,670	D
Stock Option (Right to Buy)	$62.04							03/06/2024	03/06/2033	Common Stock	4,261		4,261	D
Stock Option (Right to Buy)	$79.73							03/11/2025	03/11/2034	Common Stock	3,126		3,126	D
Stock Option (Right to Buy)	$82.39							03/11/2026	03/11/2035	Common Stock	1,935		1,935	D

Explanation of Responses:

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

Remarks:

	Gordon D. Wichman	03/10/2026
	** Signature of Reporting Person	Date
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.

FAQ

What insider transaction did AAON (AAON) report for EVP Gordon Douglas Wichman?

AAON’s Executive Vice President Gordon Douglas Wichman reported a tax-related disposition of 102 common shares at $88.33 per share. The F-code indicates shares were withheld to cover tax obligations, not sold in an open-market trade, making this a routine compensation-related event.

How many AAON shares does Gordon Douglas Wichman hold after this Form 4 filing?

Following the reported tax-withholding transaction, Gordon Douglas Wichman holds 10,217 AAON common shares directly. He also has indirect ownership of 4,510 shares through a 401(k) plan, providing a combined visible equity stake alongside his substantial outstanding stock option awards.

What does the F transaction code mean in the AAON Form 4 filing?

The F code in the AAON Form 4 indicates shares were disposed of to pay exercise price or tax liability by delivering securities. Here, 102 shares at $88.33 were used for tax withholding, which differs from a discretionary open-market sale and carries limited informational value on sentiment.

What stock options does AAON EVP Gordon Douglas Wichman retain after the reported transaction?

Gordon Douglas Wichman retains several AAON stock option grants. These include rights over 24,250 underlying common shares at a $27.58 exercise price expiring March 11, 2029, plus additional grants with exercise prices up to $82.39 and expirations extending through March 11, 2035.

Is the AAON EVP’s Form 4 transaction a significant insider sale?

The Form 4 shows a small 102-share tax-withholding disposition at $88.33, not an open-market sale. Because the shares covered tax obligations and Wichman still holds over 10,000 shares plus sizable options, this filing appears routine rather than a major change in insider exposure.