Arthur F. Ryan - SEC Form 4 Insider Trading Activity
Director
Summary
Updated Aug 16, 2026
Arthur F. Ryan has filed 1 SEC Form 4 filing across 1 company in the last 90 days - selling. Lifetime open-market sales: $540K.
Profile
Arthur F. Ryan holds the role of Director at REGENERON PHARMACEUTICALS, INC. (REGN). Ryan has reported 6 insider filings with the SEC since 2024. The most recent filing was in July 2026.
- Role
- Director
Board memberships
- REGENERON PHARMACEUTICALS, INC.
Trading Pattern
InsiderAlpha's records for Arthur F. Ryan go back to 2024: 6 primary Form 4 filings, an average of 2.0 per year. 65 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Career & Filing History
Every role Arthur F. Ryan 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.
- Director at REGENERON PHARMACEUTICALS, INC. (REGN) - 5 filings, 2024 to 2026
- Director at REGENERON PHARMACEUTICALS, INC. (REGN) - 1 filing, 2026
Recent Transactions
20Companies - Last 90 Days
1- REGENERON PHARMACEUTICALS, INC. (REGN) - 1 filing, last 2026-07-07
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Arthur F. Ryan 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.
- Christine A. Poon - $4.25M of REGN open-market activity in the last 12 months
- Huda Y. Zoghbi - $1.92M of REGN open-market activity in the last 12 months
- Jason Pitofsky - $1.87M of REGN open-market activity in the last 12 months
- Bonnie L. Bassler - $570K of REGN open-market activity in the last 12 months
- Kathryn Guarini - $320K of REGN 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 Arthur F. Ryan?
Arthur F. Ryan holds the role of Director at REGENERON PHARMACEUTICALS, INC. (REGN). Ryan has reported 6 insider filings with the SEC since 2024. The most recent filing was in July 2026.…
How many SEC Form 4 filings has Arthur F. Ryan submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Arthur F. Ryan been buying or selling stock?
Recorded transactions: 0 open-market purchases and 65 open-market sales ($540K) across all tracked filings.
Where can I see all of Arthur F. Ryan'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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