Summary
Updated Aug 30, 2026
Brian C. Witherow is Chief Financial Officer of Six Flags Entertainment Corporation/NEW (FUN). 4 SEC Form 4 filings on record going back to 2024, most recently on 25 February 2026.
Recent Transactions
4Every recent SEC Form 4 transaction Brian C. Witherow has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Brian C. Witherow files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Rehan Jaffer - $5.89M of FUN open-market activity in the last 12 months
- John T. Reilly - $248K of FUN open-market activity in the last 12 months
- Richard M. Haddrill - $191K of FUN open-market activity in the last 12 months
- Marilyn G. Spiegel - $96K of FUN open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Brian C. Witherow?
Brian C. Witherow is a corporate insider, tracked as Chief Financial Officer of Six Flags Entertainment Corporation/NEW (FUN). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Brian C. Witherow last file a Form 4?
The most recent primary Form 4 on record is dated 25 February 2026, one of 4 filings going back to 2024.
Where can I see all of Brian C. Witherow's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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