Richard M. Haddrill - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Richard M. Haddrill has filed 1 SEC Form 4 filing across 1 company in the last 90 days - buying. Lifetime open-market purchases: $191K.
Profile
Richard M. Haddrill holds the role of Executive Chair at Six Flags Entertainment Corporation/NEW (FUN). Haddrill has reported 2 insider filings with the SEC since 2026. The most recent filing was in May 2026.
| Role | Executive Chair, Director |
|---|---|
| Notability | 40/100 |
Board memberships
- Six Flags Entertainment Corporation/NEW
Reported roles
- Executive Chair
Awards & honors
- Leadership in Six Flags Entertainment Corporation
- Strategic growth initiatives in the amusement park industry
Trading Pattern
InsiderAlpha's records for Richard M. Haddrill go back to 2026: 2 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $191K (1 buy totaling $191K). The largest single buy on record is $191K of FUN in 2026. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Richard M. Haddrill has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Executive Chair, Director at Six Flags Entertainment Corporation/NEW (FUN) - 2 filings, 2026
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-14 | FUN | Six Flags Entertainment Corporation/NEW | P - Open-market purchase | 10.0K | $19.08 | $191K |
| 2026-04-20 | FUN | Six Flags Entertainment Corporation/NEW | A - Grant or award | 217.8K | $0.00 |
Companies - Last 90 Days
- Six Flags Entertainment Corporation/NEW (FUN) - 1 filing, last 2026-05-14
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Richard M. Haddrill has recently filed 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
- Steven E. Hoffman - $248K 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:
- Saul B. Rosenthal
- Jack Ross
- Martine A. Rothblatt
- Saba Capital Management, L.P.
- Nicholas S. Schorsch
- Trygve Seglem
- Lawrence B. Seidman
- Thomas J. Shaw
Frequently Asked Questions
Who is Richard M. Haddrill?
Richard M. Haddrill holds the role of Executive Chair at Six Flags Entertainment Corporation/NEW (FUN). Haddrill has reported 2 insider filings with the SEC since 2026. The most recent filing was in May 2026.…
How many SEC Form 4 filings has Richard M. Haddrill submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Richard M. Haddrill been buying or selling stock?
Recorded transactions: 1 open-market purchase ($191K) and 0 open-market sales across all tracked filings.
Where can I see all of Richard M. Haddrill'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.
Learn More
Open the live Richard M. Haddrill profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.