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FUN SCHEDULE 13G/A: SEC filing

Darlington Partners Capital Management and affiliated entities

Filed with the SEC on · accession 0000935836-26-000410

FUN filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Aug 14, 2026. Darlington Partners Capital Management and affiliated entities filed a Schedule 13G/A amendment regarding their joint filing agreement for holdings in Six Flags Entertainment Corporation. The stock moved -1.7% by the first close after the filing.

Summary of the filing

Darlington Partners Capital Management and affiliated entities filed a Schedule 13G/A amendment regarding their joint filing agreement for holdings in Six Flags Entertainment Corporation. The filing is a procedural joint filing agreement exhibit and does not disclose a change in ownership position.

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Key details

Filer / reporting personDarlington Partners Capital Management, LP
General partner of filerDarlington Partners GP, LLC
Affiliated reporting entityDarlington Partners, L.P.
Issuer of securities heldSix Flags Entertainment Corporation
Manager, darlington partners capital management, lp / darlington partners gp, llcScott W. Clark
Reporting personRamsey B. Jishi

How FUN stock reacted

Close before

$16.68

Aug 13, 2026

First close after

-1.68%

$16.40

5 trading days

+0.66%

$16.79

Since filing

-40.05%

$10.00

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Frequently asked questions

What did FUN file with the SEC on Aug 14, 2026?

FUN filed a SCHEDULE 13G/A (SEC filing). Darlington Partners Capital Management and affiliated entities filed a Schedule 13G/A amendment regarding their joint filing agreement for holdings in Six Flags Entertainment Corporation. The filing is a procedural joint filing agreement exhibit and does not disclose a change in ownership position.

How do I read a SCHEDULE 13G/A?

A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A SCHEDULE 13G/A (schedule 13g/a): A report the company filed with the SEC (the US market regulator).

How did FUN stock react to this filing?

FUN closed at $16.68 before the filing and $16.40 on Aug 14, 2026 (-1.68%). Five trading days later: $16.79 (+0.66%).

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