REGENERON PHARMACEUTICALS, INC. (REGN) Insider Trading -- Recent Executive & Director Transactions

19 insiders reported 134 Form 4 transactions for REGENERON PHARMACEUTICALS, INC. (REGN) over the past 18 months (most recent 2026-08-21). Recent activity: LAROSA JOSEPH J (EVP General Counsel and Secret) Buy 12,282 shares, LAROSA JOSEPH J (EVP General Counsel and Secret) Sell 9,019 shares, Fenimore Christopher R. (EVP Finance CFO) Buy 6,283 shares, Fenimore Christopher R. (EVP Finance CFO) Sell 4,599 shares, Guarini Kathryn (Director) Buy 400 shares. Source: SEC Form 4.

DateInsiderTitleTypeSharesValue
2026-08-21LAROSA JOSEPH JEVP General Counsel and SecretBuy12,282$4.7M
2026-08-21LAROSA JOSEPH JEVP General Counsel and SecretSell9,019$7.5M
2026-08-20Fenimore Christopher R.EVP Finance CFOBuy6,283$2.4M
2026-08-20Fenimore Christopher R.EVP Finance CFOSell4,599$3.7M
2026-08-12Guarini KathrynDirectorBuy400$287,748
2026-08-12Zoghbi Huda YDirectorBuy800$301,352
2026-08-12Zoghbi Huda YDirectorSell800$640,000
2026-08-12Guarini KathrynDirectorSell400$320,000
2026-07-07RYAN ARTHUR FDirectorSell200$130,030
2026-05-04RYAN ARTHUR FDirectorSell15$10,564
2026-05-04RYAN ARTHUR FDirectorSell15$10,537
2026-05-04RYAN ARTHUR FDirectorSell24$16,883
2026-05-04RYAN ARTHUR FDirectorSell14$9,878
2026-05-04RYAN ARTHUR FDirectorSell7$4,947
2026-05-04RYAN ARTHUR FDirectorSell4$2,830
2026-05-04RYAN ARTHUR FDirectorSell6$4,257
2026-05-04RYAN ARTHUR FDirectorSell2$1,422
2026-05-04RYAN ARTHUR FDirectorSell5$3,557
2026-05-04RYAN ARTHUR FDirectorSell1$712
2026-05-04RYAN ARTHUR FDirectorSell2$1,428
2026-05-04RYAN ARTHUR FDirectorSell5$3,509
2026-04-03RYAN ARTHUR FDirectorSell8$6,197
2026-04-03RYAN ARTHUR FDirectorSell1$771
2026-04-03RYAN ARTHUR FDirectorSell3$2,318
2026-04-03RYAN ARTHUR FDirectorSell8$6,189

Source: SEC Form 4 filings · as of 2026-08-21