Six Flags director Jennifer Mason to leave board

Six Flags Entertainment Corporation reported that board member Jennifer Mason has informed the company she will not stand for re-election when her term expires at the 2026 annual meeting of stockholders.

Rhea-AI Filing Summary

Six Flags Entertainment Corporation reported that board member Jennifer Mason has informed the company she will not stand for re-election when her term expires at the 2026 annual meeting of stockholders. The company states that her decision is not due to any disagreement with the Board, the company, or management regarding operations, policies, or practices.

The Board and the company expressed their appreciation for Ms. Mason’s dedicated service as a director. This represents a planned transition in board composition rather than a dispute-driven departure.

8-K Event Classification

Item 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers

1 item

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance

Key personnel changes including departures, elections, or appointments of directors and executive officers.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What board change did Six Flags Entertainment Corporation (FUN) disclose?

Six Flags Entertainment Corporation disclosed that director Jennifer Mason will not stand for re-election when her current term ends at the 2026 annual meeting of stockholders. Her departure reflects a planned board transition rather than an abrupt or contested change in governance.

Did Jennifer Mason resign from the Six Flags (FUN) board immediately?

No, Jennifer Mason did not resign immediately; she will serve until her term ends at the 2026 annual meeting of stockholders. She simply informed the company that she will not stand for re-election when that term expires, allowing for an orderly transition.

Was Jennifer Mason’s decision related to disagreements with Six Flags (FUN) management?

The company states that Jennifer Mason’s decision was not due to any disagreement with the Board, the company, or management. This means there were no reported disputes about operations, policies, or practices underlying her choice not to seek re-election.

When will Jennifer Mason’s term on the Six Flags (FUN) board expire?

Jennifer Mason’s term on the Six Flags Entertainment Corporation board will expire at the company’s 2026 annual meeting of stockholders. She will continue to serve as a director until that meeting, after which she will leave the Board if not standing for re-election.

How did Six Flags (FUN) respond to Jennifer Mason’s planned board departure?

Six Flags Entertainment Corporation and its Board expressed thanks to Jennifer Mason for her dedicated service as a director. Their statement frames the change as a respectful, planned transition in board membership rather than a reaction to conflict or performance issues.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/13/2026 - 04:22 PM EDT Learn about SEC filing dates

Six Flags Entertainment Corporation/NEW false 0001999001 0001999001 2026-03-10 2026-03-10

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

DATE OF REPORT (Date of earliest event reported): March 10, 2026

Six Flags Entertainment Corporation

(Exact name of registrant as specified in its charter)

Delaware		001-42157		93-4097909
(State or other jurisdiction of incorporation)		(Commission File Number)		(I.R.S. Employer Identification No.)

8701 Red Oak Blvd.

Charlotte, North Carolina 28217

(Address of principal executive offices) (Zip Code)

(704) 414-4700

(Registrant’s telephone numbers, including area code)

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbols		Name of each exchange on which registered
Common Stock, par value $0.01 per share		FUN		New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

On March 10, 2026, Jennifer Mason, a member of the Board of Directors (the “Board”) of Six Flags Entertainment Corporation (the “Company”), informed the Company that she will not stand for re-election when her term expires at the 2026 annual meeting of stockholders of the Company (the “2026 Annual Meeting”). Ms. Mason’s decision was not due to any disagreement with the Board, the Company or management on any matter relating to the Company’s operations, policies or practices. The Board and the Company wish to thank Ms. Mason for her dedicated service on the Board.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: March 13, 2026				SIX FLAGS ENTERTAINMENT CORPORATION
				(Registrant)
				By:		/s/ Brian C. Witherow
				Name:		Brian C. Witherow
				Title:		Chief Financial Officer

Filing Exhibits & Attachments

3 documents

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA 2.8 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE 16.8 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE 10.6 KB