Six Flags Exec Chair Reports Ownership

TL;DR

Six Flags Exec Chair Haddrill now directly owns 2,320 shares.

AI Summary

Richard M. Haddrill, Executive Chair and Director of Six Flags Entertainment Corporation/NEW (FUN), filed an initial statement of beneficial ownership on March 24, 2026. He directly owns 2,320 shares of common stock in the company.

Why It Matters

This filing indicates a new or updated ownership stake by a key executive, which can signal confidence or changes in the company's leadership structure.

Risk Assessment

Risk Level: low — This is a routine initial ownership filing by an executive and does not inherently indicate increased risk.

Key Numbers

• 2,320 — Shares Owned (Directly held common stock by Richard M. Haddrill.)

Key Players & Entities

• HADDRILL RICHARD M (person) — Reporting Person
• SIX FLAGS ENTERTAINMENT CORPORATION/NEW (company) — Issuer
• FUN (company) — Issuer Ticker
• 2,320 (dollar_amount) — Shares owned

FAQ

Key Financial Figures

• $0.01 — ip (Instr. 5) Common Stock, par value $0.01 per share 2,320 D Table II - Derivativ

Filing Documents

• wk-form3_1775513512.html (3)
• wk-form3_1775513512.xml (3) — 2KB
• 0001201647-26-000004.txt ( ) — 4KB

From the Filing

SEC FORM 3 SEC Form 3 FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940 OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response: 0.5 1. Name and Address of Reporting Person * HADDRILL RICHARD M (Last) (First) (Middle) C/O SIX FLAGS ENTERTAINMENT CORPORATION 8701 RED OAK BLVD (Street) CHARLOTTE NORTH CAROLINA 28217 (City) (State) (Zip) UNITED STATES (Country) 2. Date of Event Requiring Statement (Month/Day/Year) 03/24/2026 3. Issuer Name and Ticker or Trading Symbol Six Flags Entertainment Corporation/NEW [ FUN ] 3a. Foreign Trading Symbol 5. If Amendment, Date of Original Filed (Month/Day/Year) 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner X Officer (give title below) Other (specify below) Executive Chair 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 Beneficially Owned 1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock, par value $0.01 per share 2,320 D Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5) Date Exercisable Expiration Date Title Amount or Number of Shares Explanation of Responses: Remarks: /s/ Richard M. Haddrill 04/06/2026 ** Signature of Reporting Person Date Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. * If the form is filed by more than one reporting person, see Instruction 5 (b)(v). ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure. Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number. * Form 3: SEC 1473 (03-26)