FORM 4 [X] 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 *

Spanos Mike
2. Issuer Name and Ticker or Trading Symbol

Six Flags Entertainment Corp [ SIX ]
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

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

C/O SIX FLAGS ENTERTAINMENT CORPORATION, 1000 BALLPARK WAY, SUITE 400
3. Date of Earliest Transaction (MM/DD/YYYY)

11/14/2021
(Street)

ARLINGTON, TX 76011
(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 $0.025 per share 11/14/2021  F  57381 (1)D$40.58 206621 (2)D  
Common Stock, par value $0.025 per share 11/14/2021  A  5654 (3)A$0.00 212275 D  
Common Stock, par value $0.025 per share 11/14/2021  F  2225 (4)A$40.58 210050 D  

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

Explanation of Responses:
(1) Represents shares withheld in payment of tax liability resulting from the accelerated vesting of previously reported restricted stock units, in connection with the reporting person's departure from Six Flags Entertainment Corporation (the "Company").
(2) The reported amount gives effect to the forfeiture of 128,343 restricted stock units in connection with the reporting person's departure from the Company.
(3) Grant of shares of common stock pursuant to dividend equivalent rights under the Company's Long-Term Incentive Plan. The number of shares of common stock granted was based on the conversion of cash dividend equivalents accumulated on previously granted restricted stock units that vested.
(4) Shares withheld in payment of tax liability in connection with the grant of shares of common stock pursuant to dividend equivalent rights under the Company's Long-Term Incentive Plan issued on November 14, 2021.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
Spanos Mike
C/O SIX FLAGS ENTERTAINMENT CORPORATION
1000 BALLPARK WAY, SUITE 400
ARLINGTON, TX 76011



Former Director, President,CEO

Signatures
/s/ Michael Spanos11/16/2021
**Signature of Reporting PersonDate

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