Highest-materiality recent filing
Six Flags appoints Ash Walia as CFO effective June 17, 2026
Ash Walia appointed CFO, effective June 17, 2026; replaces interim CFO Dave Hoffman who returns to CAO role.
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.
Six Flags Q1 net loss $220M, revenue $202M; maintains FY EBITDA guidance
Net loss attributable to company of $220M ($2.20/sh) vs $133M loss in Q1 2024, including $134M loss from legacy Six Flags.
Six Flags nominates four new independent directors; four current directors resign
Dendur Capital gets two board seats; cooperation includes standstill and voting commitments until 2027.
Six Flags reports Q4 2024 net loss of $264M; targets 2025 Adjusted EBITDA of $1.08B-$1.12B
Q4 net revenues $687M; net loss $264M ($2.76 diluted EPS) includes $210M non-cash tax provision from restructuring.
Six Flags exercises option to acquire remaining ~68.5% interest in SFOG for ~$332.6M by Jan 2027
On Dec 17, 2024, Six Flags notified Georgia Purchaser to exercise end-of-term option to acquire minority stake in Six Flags Over Georgia and White Water Atlanta.
Six Flags Q3 revenue $1.35B, Adj EBITDA $558M; targets $800M FCF by 2027
Net income $111M ($1.10 diluted EPS); Adj EBITDA $558M includes $206M from legacy Six Flags.
Six Flags posts pro forma net loss of $23M for 2023, $186M for H1 2024 after merger of equals
Pro forma 2023 revenue $3.23B; net loss attributable to controlling interests $23.3M ($0.23 per share).
Legacy Cedar Fair: net revenues $572M (record, +14%), attendance 8.6M (+17%), Adjusted EBITDA $205M (+36%).
Former Six Flags Q2 net income $34.1M, EPS $0.40; merger closed July 1
Q2 2024 revenue $438.5M, down from $443.7M in prior-year quarter.
Cedar Fair and Six Flags complete merger of equals; combined company to trade as FUN
Each Cedar Fair unit converted to 1 share of new Six Flags common; each Six Flags share received 0.5800 shares.
On July 2, 2026, the Company also announced the appointment of Mark Pauls as Chief Operating Officer of the Company, effective July 15, 2026.
On July 1, 2026, Six Flags Entertainment Corporation (the “Company”) announced Tim Fisher’s departure from the role of Chief Operating Officer of the Company, effective July 15, 2026.
the Amendment provides that the term of Mr. Fisher’s Employment Agreement will expire on December 15, 2026
On May 27, 2026, Six Flags Entertainment Corporation (the “Company”) announced the appointment of Ash Walia as Chief Financial Officer of the Company, effective June 17, 2026.
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.
David Hoffman, the Chief Accounting Officer of the Company, will serve as the Interim Chief Financial Officer, effective May 8, 2026.
On May 7, 2026, Six Flags Entertainment Corporation (the “Company”) announced the departures of Brian Witherow, the Chief Financial Officer of the Company, and Brian Nurse, the Chief Legal and Compliance Officer of the Company, effective May 8, 2026.
On May 7, 2026, Six Flags Entertainment Corporation (the “Company”) announced the departures of Brian Witherow, the Chief Financial Officer of the Company, and Brian Nurse, the Chief Legal and Compliance Officer of the Company, effective May 8, 2026.
On July 1, 2024, the Company entered into an employment agreement with Selim Bassoul to serve as Executive Chairman of the Board of Directors of the Company.
Mr. Mick tendered his resignation from the Board on and effective as of the Closing
Effective as of the Closing Date, the following individuals were appointed to serve on the Board: • Selim Bassoul • Esi Eggleston Bracey • Louis Carr • Michelle Frymire • Daniel Hanrahan • Chieh Huang • Jennifer Mason • Enrique Ramirez Mena • D. Scott Olivet • Arik Ruchim • Marilyn Spiegel • Richard A. Zimmerman
Effective as of the Closing Date, the following individuals were appointed to serve on the Board: • Selim Bassoul • Esi Eggleston Bracey • Louis Carr • Michelle Frymire • Daniel Hanrahan • Chieh Huang • Jennifer Mason • Enrique Ramirez Mena • D. Scott Olivet • Arik Ruchim • Marilyn Spiegel • Richard A. Zimmerman
Max materiality 1.00 · Median 0.60 · Most common event leadership