Arthur F. Ryan
Director · REGENERON PHARMACEUTICALS, INC.
- 2024
- Jul 7, 2026
- 6
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Arthur F. Ryan 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.
- Christine A. Poon - $4.25M in REGN purchases and sales in the last 12 months
- Marion McCourt - $2.00M in REGN purchases and sales in the last 12 months
- Huda Y. Zoghbi - $1.92M in REGN purchases and sales in the last 12 months
- Jason Pitofsky - $1.87M in REGN purchases and sales in the last 12 months
- Kathryn Guarini - $660K in REGN purchases and sales in the last 12 months
- Bonnie L. Bassler - $570K in REGN purchases and sales in the last 12 months
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Frequently asked questions
Who is Arthur F. Ryan?
Arthur F. Ryan is a corporate insider, tracked as Director of REGENERON PHARMACEUTICALS, INC. (REGN). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Arthur F. Ryan last file a Form 4?
The most recent primary Form 4 on record is dated 7 July 2026, one of 6 filings going back to 2024.
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.
