Kathryn Guarini
Director · REGENERON PHARMACEUTICALS, INC.
IndividualSelling only6 10b5-1 trades
- 2026
- Sep 3, 2026
- 2
Filings (90d)
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Kathryn Guarini 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
- Bonnie L. Bassler - $570K in REGN purchases and sales in the last 12 months
- Arthur F. Ryan - $435K in REGN purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Kathryn Guarini?
Kathryn Guarini is a corporate insider, tracked as Director of REGENERON PHARMACEUTICALS, INC. (REGN). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Kathryn Guarini submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Kathryn Guarini been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($660K) across all tracked filings.
