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Regeneron Pharmaceuticals, Inc.

REGN
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0000872589

In the last 90 days, Regeneron Pharmaceuticals, Inc. insiders filed 0 open-market purchases and 5 sales; 1,341 institutions reported holding it in 13F filings for Q2 2026, worth $57.1B in total; Southeastern Asset Management (Longleaf) is the only superinvestor holding it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Regeneron Pharmaceuticals, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
5 filings
4 insiders, $3.43M in total
Insiders trading
4
Net value
−$3.43M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Regeneron Pharmaceuticals, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Regeneron Pharmaceuticals, Inc.
NameTitleLast reported holdingLast filingFilings, past year
McCourt MarionEVP Commercial12,003Sep 3, 20263
Guarini KathrynDirector603Sep 3, 20263
Larosa Joseph JEVP General Counsel and Secret36,373Aug 21, 20263
Fenimore Christopher R.EVP Finance CFO19,984Aug 20, 20262
Zoghbi Huda YDirector1,703Aug 12, 20263
Ryan Arthur FDirector17,303Jul 7, 20266
Pitofsky JasonSVP Controller4,272Feb 11, 20263
Bassler Bonnie LDirector1,703Jan 8, 20263
Brown Michael SDirector1,703Jan 6, 20261
Poon Christine ADirector5,219Jan 6, 20262
Coles N AnthonyDirector1,714Jan 6, 20261
Sing George LDirector31,007Jan 6, 20262
Goldstein Joseph LDirector6,703Jan 6, 20261
Thompson Craig B.Director775Jan 6, 20261
Schenkein David PDirector603Jan 6, 20261
Schleifer Leonard SBd. Co-Chair, President & CEO214,523Jan 5, 20262
Yancopoulos GeorgeBd. Co-Chair, President & CSO310,460Jan 5, 20262
Van Plew Daniel PEVP & General Mgr, Industrial21,673Dec 11, 20252
Murphy Andrew JEVP Research47,833Dec 11, 20253
Stahl NeilEVP Research and Development48,829Dec 18, 20240
Landry Robert EEVP Finance CFO23,693Feb 6, 20240
Vagelos P RoyDirector125,493IndirectApr 5, 20230
Tessier-Lavigne MarcDirector2,434Jan 5, 20230

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Apr 24, 2023 (view filing)Apr 213 daysBrown Michael SDirectorSSale−3.07K$798.42−$2.45M−71.1%1.25K after10b5-1
Apr 5, 2023 (view filing)Apr 32 daysRyan Arthur FDirectorSSale−100$819.31−$81.9K−0.5%19.0K after8 lots10b5-1
Apr 5, 2023 (view filing)Apr 32 daysMcCourt MarionEVP CommercialSSale−1.10K$818.80−$900.7K−5.0%20.8K after10b5-1
Mar 29, 2023 (view filing)Mar 27-282 daysLandry Robert EEVP Finance CFOSSale−1.19K$823.20−$979.6K−3.6%31.9K after16 lots10b5-1
Mar 27, 2023 (view filing)Mar 243 daysBassler Bonnie LDirectorSSale−1.24K$818.00−$1.01M−49.9%1.25K after10b5-1
Mar 27, 2023 (view filing)Mar 234 daysYancopoulos GeorgePresident and Chief ScientificSSale−3.66K$804.26−$2.94M−1.8%196.8K after8 lots10b5-1
Mar 27, 2023 (view filing)Mar 234 daysFenimore Christopher R.SVP ControllerSSale−2.19K$806.47−$1.77M−10.6%18.4K after10b5-1
Mar 3, 2023 (view filing)Mar 12 daysRyan Arthur FDirectorSSale−100$762.50−$76.2K−0.5%19.1K after9 lots
Mar 3, 2023 (view filing)Mar 12 daysMcCourt MarionEVP CommercialSSale−1.10K$759.89−$835.9K−5.0%20.8K after
Feb 8, 2023 (view filing)Feb 62 daysGoldstein Joseph LDirectorSSale−3.61K$800.00−$2.89M−36.6%6.25K after
Feb 8, 2023 (view filing)Feb 62 daysBrown Michael SDirectorSSale−3.07K$798.00−$2.45M−71.1%1.25K after
Feb 8, 2023 (view filing)Feb 62 daysBrown Michael SDirectorSSale−500$797.00−$398.5K−7.5%6.16K after
Feb 8, 2023 (view filing)Feb 62 daysYancopoulos GeorgePresident and Chief ScientificSSale−13.2K$800.08−$10.6M−6.2%200.5K after
Feb 8, 2023 (view filing)Feb 71 dayMcCourt MarionEVP CommercialSSale−1.00K$769.04−$769.0K−4.3%22.1K after
Feb 7, 2023 (view filing)Feb 34 daysBassler Bonnie LDirectorSSale−1.02K$779.00−$795.4K−45.0%1.25K after
Feb 7, 2023 (view filing)Feb 3-64 daysLandry Robert EEVP Finance CFOSSale−1.49K$776.80−$1.16M−4.4%32.1K after15 lots
Feb 3, 2023 (view filing)Feb 12 daysRyan Arthur FDirectorSSale−100$756.13−$75.6K−0.5%19.2K after11 lots
Feb 3, 2023 (view filing)Feb 12 daysMcCourt MarionEVP CommercialSSale−1.10K$752.19−$827.4K−4.7%22.1K after
Jan 30, 2023 (view filing)Jan 273 daysBrown Michael SDirectorSSale−1$747.00−$747−0.1%1.25K after
Jan 10, 2023 (view filing)Jan 64 daysBrown Michael SDirectorSSale−3.07K$747.14−$2.29M−71.1%1.25K after
Jan 5, 2023 (view filing)Jan 32 daysRyan Arthur FDirectorSSale−100$726.29−$72.6K−0.5%19.2K after12 lots
Jan 5, 2023 (view filing)Jan 32 daysMcCourt MarionEVP CommercialSSale−1.10K$721.86−$794.0K−4.7%22.1K after
Dec 30, 2022 (view filing)Dec 282 daysColes N AnthonyDirectorSSale−5.76K$714.11−$4.11M−84.0%1.09K after8 lots
Dec 13, 2022 (view filing)Dec 121 dayMcCourt MarionEVP CommercialSSale−264$730.17−$192.8K−1.4%19.1K after
Dec 12, 2022 (view filing)Dec 84 daysBassler Bonnie LDirectorSSale−218$779.00−$169.8K−16.8%1.08K after
Dec 2, 2022 (view filing)Dec 11 dayRyan Arthur FDirectorSSale−100$758.17−$75.8K−0.5%19.3K after15 lots
Dec 2, 2022 (view filing)Dec 11 dayMcCourt MarionEVP CommercialSSale−1.10K$756.19−$831.8K−5.3%19.6K after
Dec 2, 2022 (view filing)Dec 2Same dayLandry Robert EEVP Finance CFOSSale−610$756.66−$461.6K−2.1%28.7K after3 lots
Nov 25, 2022 (view filing)Nov 232 daysVan Plew Daniel PEVP & General Mgr, IndustrialSSale−12.0K$740.75−$8.87M−28.1%30.6K after14 lots
Nov 16, 2022 (view filing)Nov 151 dayMurphy Andrew JEVP ResearchSSale−3.72K$727.81−$2.71M−6.1%57.1K after20 lots
Nov 10, 2022 (view filing)Nov 82 daysBrown Michael SDirectorSSale−4.00K$755.18−$3.02M−78.7%1.08K after13 lots
Nov 10, 2022 (view filing)Nov 82 daysBrown Michael SDirectorSSale−500$748.49−$374.2K−7.0%6.66K after
Nov 8, 2022 (view filing)Nov 71 dayVan Plew Daniel PEVP & General Mgr, IndustrialSSale−7.89K$745.40−$5.88M−20.5%30.6K after6 lots
Nov 7, 2022 (view filing)Nov 43 daysMcCourt MarionEVP CommercialSSale−1.00K$727.82−$727.8K−4.8%19.6K after
Nov 3, 2022 (view filing)Nov 12 daysRyan Arthur FDirectorSSale−100$755.89−$75.6K−0.5%19.4K after10 lots
Nov 2, 2022 (view filing)Nov 11 dayLandry Robert EEVP Finance CFOSSale−482$758.06−$365.4K−1.6%28.7K after10 lots
Nov 2, 2022 (view filing)Nov 11 dayMcCourt MarionEVP CommercialSSale−1.10K$750.00−$825.0K−5.3%19.6K after
Oct 18, 2022 (view filing)Oct 171 dayLandry Robert EEVP Finance CFOSSale−358$739.50−$264.7K−1.2%28.7K after
Oct 7, 2022 (view filing)Oct 52 daysFenimore Christopher R.SVP ControllerSSale−1.84K$749.00−$1.38M−10.1%16.4K after
Oct 5, 2022 (view filing)Oct 32 daysMcCourt MarionEVP CommercialSSale−1.10K$705.39−$775.9K−5.3%19.6K after2 lots
Oct 5, 2022 (view filing)Oct 32 daysFenimore Christopher R.SVP ControllerSSale−3.35K$724.00−$2.42M−15.5%18.3K after
Oct 5, 2022 (view filing)Oct 32 daysRyan Arthur FDirectorSSale−100$726.54−$72.7K−0.5%19.5K after14 lots
Oct 3, 2022 (view filing)Sep 29-Oct 34 daysTessier-Lavigne MarcDirectorSSale−10.8K$702.24−$7.61M−82.7%2.27K after14 lots
Sep 13, 2022 (view filing)Sep 121 dayVan Plew Daniel PEVP & General Mgr, IndustrialSSale−4.70K$716.38−$3.36M−13.3%30.6K after14 lots
Sep 12, 2022 (view filing)Sep 8-94 daysBassler Bonnie LDirectorSSale−3.17K$704.65−$2.23M−74.5%1.08K after3 lots
Sep 8, 2022 (view filing)Sep 62 daysRyan Arthur FDirectorSSale−100$582.37−$58.2K−0.5%19.6K after12 lots
Sep 8, 2022 (view filing)Sep 62 daysColes N AnthonyDirectorSSale−6.00K$581.28−$3.49M−84.6%1.09K after9 lots
Sep 2, 2022 (view filing)Sep 11 dayMcCourt MarionEVP CommercialSSale−1.10K$577.62−$635.4K−5.3%19.6K after
Aug 17, 2022 (view filing)Aug 161 dayMurphy Andrew JEVP ResearchSSale−3.51K$645.49−$2.27M−5.7%58.5K after11 lots
Aug 11, 2022 (view filing)Aug 92 daysPoon Christine ADirectorSSale−15.0K$620.91−$9.31M−88.9%1.87K after2 lots