FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

ASBJORNSON NORMAN H
2. Issuer Name and Ticker or Trading Symbol

AAON, INC. [ AAON ]
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__X__ Director                    __X__ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
CEO
(Last)          (First)          (Middle)

AAON INC, 2425 SOUTH YUKON
3. Date of Earliest Transaction (MM/DD/YYYY)

2/26/2020
(Street)

TULSA, OK 74107
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
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. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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 2/26/2020  F  2110 D$53.12 9027649 D  
Common Stock, par value $.004         154000 I Private Foundation 
Common Stock, par value $.004         554108 I Trustee of trusts 
Common Stock, par value $.004         7178 I 401(k) Plan 

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security3. Trans. Date3A. Deemed Execution Date, if any4. Trans. Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
6. Date Exercisable and Expiration Date7. 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 of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (Right to Buy) $23.57           2/26/2016 2/26/2025 Common Stock 38320.0  38320 D  
Stock Option (Right to Buy) $20.92           1/26/2017 1/26/2026 Common Stock 34990.0  34990 D  
Stock Option (Right to Buy) $34.4           2/22/2018 2/22/2027 Common Stock 35870.0  35870 D  
Stock Option (Right to Buy) $36.95           1/2/2019 1/2/2028 Common Stock 115700.0  115700 D  
Stock Option (Right to Buy) $41.37           3/11/2020 3/11/2029 Common Stock 190000.0  190000 D  

Explanation of Responses:

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
ASBJORNSON NORMAN H
AAON INC
2425 SOUTH YUKON
TULSA, OK 74107
XXCEO

Signatures
Norman H. Asbjornson2/28/2020
**Signature of Reporting PersonDate

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