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Regeneron Pharmaceuticals, Inc.

Kathryn Guarini (Director) sells REGN shares

4REGNFiled Nov 3, 2026, 4:22 PM ET· Period Oct 30, 2026

AI-generated summary

Director Kathryn Guarini exercised options for 400 shares of Common Stock valued at $287,748 and sold 400 shares of Common Stock for $360,000 on October 30, 2026. Following these transactions, the insider directly held 603 shares of Common Stock. The trades were executed under a Rule 10b5-1 trading plan adopted on February 13, 2026.

Key facts

Insider
Kathryn Guarini · Director

Rule 10b5-1 plan · adopted Feb 13, 2026

DateTransactionSharesPriceValueHeld afterOwnership
Oct 30, 2026M · exercise or conversion of a derivativeFootnotes F1+400$719.37$287,748.001,003Direct
Oct 30, 2026S · open-market saleFootnotes F1−400$900.00$360,000.00603Direct
Oct 30, 2026M · exercise or conversion of a derivativeNon-Qualified Stock Option (right to buy)Footnotes F1, F2−400$0.00$0.00758Direct
Footnotes
  1. F1 Disposition/acquisition made pursuant to a plan intended to comply with Rule 10b5-1(c) adopted on February 13, 2026.
  2. F2 On the date of the Company's first annual meeting of shareholders following the date of grant, a portion of these stock options equal to the portion of one year that had passed from the date of grant became exercisable, and the remainder became exercisable on the first anniversary of the date of grant.

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Not investment advice. Summaries can contain errors; the SEC filing is the official record.