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AI brief of an SEC Form 8-K · Six Flags (FUN)

Six Flags CFO Brian Witherow to step down May 8; Dave Hoffman named interim CFO

Neutral Impact 4 of 5 leadership Written later

Six Flags said CFO Brian Witherow and Chief Legal and Compliance Officer Brian Nurse will both leave effective May 8, 2026. Chief Accounting Officer David Hoffman will serve as interim CFO, and the company has not yet named a permanent successor. The filing says the company will provide an update when its CFO succession process is complete, and it was filed alongside a separate first quarter 2026 results release.

Key points

  • Brian Witherow steps down as CFO and Brian Nurse departs as Chief Legal and Compliance Officer, both effective May 8, 2026.
  • David Hoffman, 57, Chief Accounting Officer, becomes interim CFO effective May 8, 2026, with an additional $20,000 cash payment per month for the role.
  • Amy Martin Ziegenfuss will become Chief Marketing Officer and Christopher Bennett will become Chief Legal and Compliance Officer, both effective June 3, 2026.
  • No permanent CFO has been named; the company says its succession process has advanced and it will provide an update when complete.

The filing

CompanySix Flags (FUN)
Form8-K, current report
Filed with the SECMay 7, 2026, 5:29 PM ET
Accession number0001193125-26-212477

Items reported: 5.02 Director / Officer Change7.01 Regulation FD Disclosure

Read the filing on SEC.gov ↗

Written by AI (Anthropic Claude, claude-haiku-5-5) on Nov 8, 2026, 6:59 AM ET, from the text of the filing and its press-release exhibits only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on May 07, 2026.

Briefs are written by AI from the filing text (each brief's own page names the model) and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the model's reading of the filing for shareholders, not a price forecast. Not investment advice.