Six Flags (FUN): HBK Investments L P reduced its stake -52K shares

398K

Shares reported · -52K vs prior quarter

0.30%

Disclosed portfolio weight

$12.1M

Reported value

Holdings as of

Jun 30, 2025

Filed

Aug 13, 2025

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Jul 16, 2025CongressDisclosed purchase of FUN — reported range $1,001 - $15,000
2. Aug 7, 2025Insider · 1 personInsiders: 2 purchases (~$248K)
3. Aug 13, 2025CongressDisclosed sale of FUN — reported range $1,001 - $15,000

What came next

1. Sep 3, 2025Layoff notice · 4701 Great America Parkway Santa Clara CA 95054Layoff notice filed in CA: 184 employees
2. Oct 10, 2025Company filing · Form 8-K · Executive change, Reg FDChanged a top executive or board member, and shared information with investors“On October 10, 2025, Six Flags Entertainment Corporation (the “Company”) announced that Selim Bassoul will step down as Executive Chairman and as a member of the Company’s Board of Directors (the “Board”) and that Daniel J. Hanrahan, Lead Independent Director, will step down as a member of the Board, each effective as of December 31, 2025.”
3. Oct 17, 2025Company filing · Form 8-K · Material agreement, Executive changeChanged a top executive or board member, and signed an important agreement (and 1 more item)“In connection with the Cooperation Agreement, on October 17, 2025, Mr. Brudnick was appointed to the Board, with a term expiring at the 2027 Annual Meeting, and to the Nominating and Governance Committee.”
4. Nov 7, 2025Company filing · Form 8-K · Results, Reg FDReported its results, and shared information with investors
5. Nov 21, 2025Company filing · Form 8-K · Executive change, Reg FDChanged a top executive or board member, and shared information with investors“On November 24, 2025, Six Flags Entertainment Corporation (the “Company”) announced the appointment of John Reilly as President and Chief Executive Officer of the Company, effective December 8, 2025.”

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

What else is on file for Six Flags

For Six Flags, OQRO holds 8 insider filings (SEC Form 4 or Form 144) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its FUN page.

How this filing works

• SEC Form 13F

Other disclosures at Six Flags

• SEC Form 4Nov 13, 2026
• SEC Form 4Nov 13, 2026
• SEC Form 4Nov 13, 2026
• SEC Form 4Nov 10, 2026
• SEC Form 4Nov 10, 2026
• SEC Form 4Nov 10, 2026

Everything OQRO holds on this company is on its FUN page.