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REGENERON PHARMACEUTICALS (REGN) Stock Ownership and Short Interest

USA - NASDAQ:REGN - US75886F1075 - Common Stock

654.74 USD
-2.79 (-0.42%)
Last: 11/10/2025, 8:28:00 PM
654.98 USD
+0.24 (+0.04%)
After Hours: 11/10/2025, 8:28:00 PM
REGN Ownership Chart.REGN Ownership Chart: showing Insider, Institutional ownership and shares available to the public.REGN Ownership.InsiderInstitutionalPublic



Shares Outstanding105.99M
Float102.06M
Float Short Interest Percentage2.87%
Owners (insider)1.89%
Owners (institutional)90.24%
Owners (insider) change0.18%
Owners (institutional) change-0.2%
REGN Institutional Ownership HistoryREGN Institutional Ownership HistoryREGN Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 50M 100M 150M
REGN Historical Insider Transactions ChartREGN Historical Insider Buy and Sell Transactions ChartREGN Historical Insider Transactions Dec 2024 Jan 2025 Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 0 5K -5K 10K
Date Name Type Shares Price Amount
Oct 30, 2025 MURPHY ANDREW J Other Disposition 1538 0.00 $ 0.00
Oct 29, 2025 POON CHRISTINE A Option Excercise 9212 520.01 $ 4,790,332.12
Oct 29, 2025 POON CHRISTINE A Open Market Sale 6500 654.27 $ 4,252,745.32
Oct 29, 2025 MURPHY ANDREW J Option Excercise 35000 555.67 $ 19,448,450.00
Oct 29, 2025 MURPHY ANDREW J Option Excercise 32490 648.82 $ 21,080,161.80
Dec 16, 2024 Van Plew Daniel P Option Excercise 969 730.81 $ 708,154.89
Dec 16, 2024 STAHL NEIL Option Excercise 304 730.81 $ 222,166.24
Dec 16, 2024 Pitofsky Jason Option Excercise 298 730.81 $ 217,781.38
Dec 16, 2024 MURPHY ANDREW J Option Excercise 1054 730.81 $ 770,273.74
Dec 16, 2024 McCourt Marion Option Excercise 759 730.81 $ 554,684.79
Dec 16, 2024 LAROSA JOSEPH J Option Excercise 702 730.81 $ 513,028.62
Dec 16, 2024 Fenimore Christopher R. Option Excercise 491 730.81 $ 358,827.71
Dec 9, 2024 Pitofsky Jason Option Excercise 149 787.00 $ 117,263.00
Dec 9, 2024 Fenimore Christopher R. Option Excercise 1140 787.00 $ 897,180.00
Dec 9, 2024 STAHL NEIL Option Excercise 466 787.00 $ 366,742.00
Dec 9, 2024 Van Plew Daniel P Option Excercise 492 787.00 $ 387,204.00
Dec 9, 2024 MURPHY ANDREW J Option Excercise 492 787.00 $ 387,204.00
Dec 9, 2024 McCourt Marion Option Excercise 274 787.00 $ 215,638.00
Dec 9, 2024 LAROSA JOSEPH J Option Excercise 492 787.00 $ 387,204.00
Dec 6, 2024 Pitofsky Jason Grant 907 0.00 $ 0.00
Dec 6, 2024 Fenimore Christopher R. Grant 2591 0.00 $ 0.00
Dec 6, 2024 Van Plew Daniel P Grant 3499 0.00 $ 0.00
Dec 6, 2024 MURPHY ANDREW J Grant 3499 0.00 $ 0.00
Dec 6, 2024 McCourt Marion Grant 2332 0.00 $ 0.00
Dec 6, 2024 LAROSA JOSEPH J Grant 2332 0.00 $ 0.00