Highest-materiality recent filing
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.
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.
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 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.
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.
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