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Form SCHEDULE 13G/A Six Flags Entertainment Filed by: DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP

May 15, 2026 4:37 PM EDT





Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
   Rule 13d-1(b)
   Rule 13d-1(c)
   Rule 13d-1(d)




schemaVersion:


SCHEDULE 13G




Comment for Type of Reporting Person:  Percentage calculated based on 101,987,541 shares of Common Stock outstanding on March 27, 2026, as reported in the proxy statement filed by the Issuer on April 9, 2026.


SCHEDULE 13G




Comment for Type of Reporting Person:  Percentage calculated based on 101,987,541 shares of Common Stock outstanding on March 27, 2026, as reported in the proxy statement filed by the Issuer on April 9, 2026.


SCHEDULE 13G




Comment for Type of Reporting Person:  Percentage calculated based on 101,987,541 shares of Common Stock outstanding on March 27, 2026, as reported in the proxy statement filed by the Issuer on April 9, 2026.


SCHEDULE 13G




Comment for Type of Reporting Person:  Percentage calculated based on 101,987,541 shares of Common Stock outstanding on March 27, 2026, as reported in the proxy statement filed by the Issuer on April 9, 2026.


SCHEDULE 13G




Comment for Type of Reporting Person:  Percentage calculated based on 101,987,541 shares of Common Stock outstanding on March 27, 2026, as reported in the proxy statement filed by the Issuer on April 9, 2026.


SCHEDULE 13G



 
Darlington Partners Capital Management, LP
 
Signature:/s/ Scott W. Clark
Name/Title:Manager of Darlington Partners GP, LLC, general partner of Darlington Partners Capital Management, LP
Date:05/15/2026
 
Darlington Partners GP, LLC
 
Signature:/s/ Scott W. Clark
Name/Title:Manager
Date:05/15/2026
 
Darlington Partners, L.P.
 
Signature:/s/ Scott W. Clark
Name/Title:Manager of Darlington Partners GP, LLC, general partner of Darlington Partners, L.P.
Date:05/15/2026
 
Scott W. Clark
 
Signature:/s/ Scott W. Clark
Name/Title:Reporting person
Date:05/15/2026
 
Ramsey B. Jishi
 
Signature:/s/ Ramsey B. Jishi
Name/Title:Reporting person
Date:05/15/2026
Exhibit Information

Exhibit 99.1 - Agreement Regarding Joint Filing of Statement on Schedule 13D or 13G

ATTACHMENTS / EXHIBITS

JT. FILING AGREEMENT



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