Six Flags appoints Richard Haddrill executive chairman; Marilyn Spiegel becomes lead independent director

Reuters

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Six Flags appoints Richard Haddrill executive chairman; Marilyn Spiegel becomes lead independent director

Six Flags appointed Richard “Dick” Haddrill as executive chairman of the board, effective immediately.
Marilyn Spiegel will serve as lead independent director following the change.
Haddrill previously served as executive vice chairman of the board of Scientific Games (now Light & Wonder) and was chief executive officer of Bally Technologies.
The board will temporarily expand to 11 members; Jennifer Mason will not stand for re-election at the 2026 annual meeting, returning the board to 10 members.
Six Flags said it appointed John Reilly as CEO in December 2025 and has added seven new directors since last summer.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Six Flags Entertainment Corporation published the original content used to generate this news brief via Business Wire (Ref. ID: 20260318127598) on March 25, 2026, and is solely responsible for the information contained therein.

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