Highest-materiality recent filing
Six Flags appoints H Partners' Rehan Jaffer to board after May 26 meeting
Arik Ruchim resigns from board effective after the 2026 Annual Meeting; Rehan Jaffer appointed as Class III director.
Six Flags announces CFO, CLO departures; new CMO and CLO appointed June 3, 2026
CFO Brian Witherow steps down May 8; CAO Dave Hoffman named interim finance lead.
Six Flags Q1 revenue up 12% to $226M; Adj. EBITDA loss narrows 28%
Net revenues $225.6M (+12% YoY); attendance 2.9M (+4%); per capita $69.26 (+6%).
Six Flags subsidiary to sell Maryland real property to JV of Kevin Durant's 35V and TPA Group
Subsidiary Six Flags America Property Corp. entered purchase agreement to sell certain real property in Prince George's County, MD.
Six Flags closes sale of six U.S. parks to EPR Properties; La Ronde sale expected Q2 2026
Six Flags completed sale of six U.S. parks: Valleyfair, Worlds of Fun, Michigan's Adventure, Schlitterbahn Galveston, Six Flags St. Louis, Six Flags Great Escape.
Six Flags appoints Richard Haddrill as Executive Chairman; board expands to 11
Richard Haddrill appointed Executive Chair, effective March 24, 2026; Marilyn Spiegel named Lead Independent Director.
Director Jennifer Mason to step down at 2026 annual meeting, no disagreement
Jennifer Mason will not stand for re-election at the 2026 annual meeting.
Six Flags sells 7 parks to EPR for $331M cash to reduce debt and sharpen focus
Cash proceeds $331M from sale of 7 parks to EPR Properties; net after-tax used to pay down debt.
Six Flags Q4 2025 revenue down 5% to $650M; Adj EBITDA $165M vs $209M YoY
Net revenues Q4 $650M (-5% YoY); attendance 9.3M (-13%); per capita spending up 8% to $66.41.
Amendment raises Dendur's beneficial ownership cap from 6% to 14.99% for aggregate economic exposure.
Six Flags issues $1B 8.625% senior notes due 2032 to refinance 2027 notes
$1,000,000,000 aggregate principal of 8.625% senior notes due January 15, 2032 issued in private offering.
Six Flags launches $1B private offering of 2032 senior notes to refinance 2027 notes
$1.0B aggregate principal amount of Senior Notes due 2032 offered in private placement.
Six Flags engages Selim Bassoul as consultant for Qiddiya project; fee $1.55M
Consulting agreement with Selim Bassoul effective Jan 1, 2026 through Dec 31, 2026.
Decision not to exercise the End-of-Term Option, which required notice by Dec 31, 2025.
Director Louis Carr resigns from Six Flags board effective Dec 24, 2025
Resignation not due to any disagreement with the board, company, or management.
Six Flags appoints John Reilly as President and CEO effective Dec 8, 2025
John Reilly named President and CEO, also joins Board; succeeds Richard Zimmerman who steps down on Dec 8.
Six Flags posts Q3 net loss of $1.2B on $1.5B impairment, revenue down 2%
Net revenues $1.32B, down 2% vs prior year; attendance up 1% to 21.1M guests.
Six Flags appoints Sachem Head partner Brudnick to board in cooperation deal
Jonathan Brudnick, a Sachem Head partner, joins Six Flags Board as Class III director effective Oct 17, 2025.
Executive Chairman Bassoul and Lead Director Hanrahan to step down; Marilyn Spiegel named Chair
Selim Bassoul steps down as Executive Chairman and from Board effective Dec 31, 2025; will consult on Six Flags Qiddiya City.
Six Flags reports 3% August attendance growth; reaffirms FY2025 EBITDA guidance of $860M-$910M
17.8M guests over 9 weeks ending Aug 31, 2025, up 2% vs same 2024 period.
Six Flags board determines annual say-on-pay votes through 2031
Shareholders voted 77,006,513 shares for one-year frequency, 268,913 for two, 317,291 for three, and 189,554 abstained.
CEO Richard Zimmerman to step down by end of 2025; board launches search
President & CEO Richard Zimmerman will step down by end of 2025; will remain CEO until successor appointed.
Six Flags reports Q2 net loss $100M; cuts full-year guidance on weather and weak demand
Net loss attributable to Six Flags of $100M ($0.99 diluted EPS) vs net income of $56M in Q2 2024.
Six Flags closes $500M incremental term loan, repays 2025 notes
Incurred $500M incremental Term B Loans to refinance 7% Senior Secured Notes due 2025 and revolver debt.
Six Flags shareholders elect four directors, ratify Deloitte, approve say-on-pay at 1-year frequency
Sandra Cochran, Michael Colglazier, Felipe Dutra, Steven Hoffman elected Class I directors with >76M votes each.
Six Flags holds Investor Day; presentation posted on IR website, no new financial data
Filed as Regulation FD disclosure; investor presentation posted on IR website on May 20, 2025.
Other than with respect to the matters described in Item 1.01 of this Current Report on Form 8-K, there is no arrangement or understanding between Mr. Jaffer and any other person pursuant to which he was selected as a director.
Max materiality 0.90 · Median 0.62 · Most common event leadership