---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-212477"
form_type: "8-K"
ticker: "FUN"
cik: "0001999001"
company_name: "Six Flags Entertainment Corporation/NEW"
filed_at: "2026-05-07T23:59:59+00:00"
generated_at: "2026-05-14T22:05:31.208959+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Six Flags announces CFO, CLO departures; new CMO and CLO appointed June 3, 2026

## Summary
- CFO Brian Witherow steps down May 8; CAO Dave Hoffman named interim finance lead.
- Chief Legal Officer Brian Nurse departs May 8; successor Christopher Bennett starts June 3.
- Amy Martin Ziegenfuss joins as CMO effective June 3, replacing Christian Dieckmann (departed May 2).
- Chris Meyering promoted to SVP, Commercial effective June 3.
- CEO cites need for fresh perspectives to advance post-merger integration and value priorities.

## SEC filing metadata
- accession: 0001193125-26-212477
- form_type: 8-K
- ticker: FUN
- cik: 0001999001
- company_name: Six Flags Entertainment Corporation/NEW
- filed_at: 2026-05-07T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1999001/000119312526212477/0001193125-26-212477-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1999001/000119312526212477/d143250d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-212477
- JSON: https://secwatch.observer/filing/0001193125-26-212477.json
- Plain text: https://secwatch.observer/filing/0001193125-26-212477.txt

## Key facts
- Executive change
  David Hoffman was appointed as Interim Chief Financial Officer at Six Flags Entertainment Corporation/NEW.
  - Action: appointed
  - Role: Interim Chief Financial Officer
  source text: David Hoffman, the Chief Accounting Officer of the Company, will serve as the Interim Chief Financial Officer, effective May 8, 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1999001/000119312526212477/0001193125-26-212477-index.htm
- Executive change
  Brian Witherow departed as Chief Financial Officer at Six Flags Entertainment Corporation/NEW.
  - Action: departures
  - Role: Chief Financial Officer
  source text: 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.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1999001/000119312526212477/0001193125-26-212477-index.htm
- Executive change
  Brian Nurse departed as Chief Legal and Compliance Officer at Six Flags Entertainment Corporation/NEW.
  - Action: departures
  - Role: Chief Legal and Compliance Officer
  source text: 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.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1999001/000119312526212477/0001193125-26-212477-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.