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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; 1,342 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.

13F holders, Q1 2026

Institutional positions in Regeneron Pharmaceuticals, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,401
+38 vs. Q4 2025
Shares held
90.5M
+9.56M (+11.8%) vs. Q4 2025
Total value
$69.8B
+$7.27B (+11.6%) vs. Q4 2025
New holders
138
578 more added
Sold out
100
461 more reduced

24 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting REGN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 1,401 institutions
Q1 2021: 926 institutionsQ2 2021: 975 institutionsQ3 2021: 1,022 institutionsQ4 2021: 1,081 institutionsQ1 2022: 1,097 institutionsQ2 2022: 1,066 institutionsQ3 2022: 1,081 institutionsQ4 2022: 1,161 institutionsQ1 2023: 1,196 institutionsQ2 2023: 1,168 institutionsQ3 2023: 1,180 institutionsQ4 2023: 1,274 institutionsQ1 2024: 1,313 institutionsQ2 2024: 1,335 institutionsQ3 2024: 1,393 institutionsQ4 2024: 1,320 institutionsQ1 2025: 1,290 institutionsQ2 2025: 1,201 institutionsQ3 2025: 1,243 institutionsQ4 2025: 1,387 institutionsQ1 2026: 1,401 institutionsQ2 2026: 1,342 institutions
Value heldQ1 2026: $69.8B
Q1 2021: $42.3BQ2 2021: $49.6BQ3 2021: $54.5BQ4 2021: $56.9BQ1 2022: $64.5BQ2 2022: $55.0BQ3 2022: $64.0BQ4 2022: $66.9BQ1 2023: $76.1BQ2 2023: $66.2BQ3 2023: $75.1BQ4 2023: $80.3BQ1 2024: $89.3BQ2 2024: $98.9BQ3 2024: $97.5BQ4 2024: $66.6BQ1 2025: $59.0BQ2 2025: $46.9BQ3 2025: $49.0BQ4 2025: $70.7BQ1 2026: $69.8BQ2 2026: $57.1B
Institutions holding REGN and their total value by quarter
QuarterHoldersValue
Q2 20261,342$57.1B
Q1 20261,401$69.8B
Q4 20251,387$70.7B
Q3 20251,243$49.0B
Q2 20251,201$46.9B
Q1 20251,290$59.0B
Q4 20241,320$66.6B
Q3 20241,393$97.5B
Q2 20241,335$98.9B
Q1 20241,313$89.3B
Q4 20231,274$80.3B
Q3 20231,180$75.1B
Q2 20231,168$66.2B
Q1 20231,196$76.1B
Q4 20221,161$66.9B
Q3 20221,081$64.0B
Q2 20221,066$55.0B
Q1 20221,097$64.5B
Q4 20211,081$56.9B
Q3 20211,022$54.5B
Q2 2021975$49.6B
Q1 2021926$42.3B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Regeneron Pharmaceuticals, Inc.; share changes are against Q4 2025.

Institutions holding REGN in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Deroy & Devereaux Private Investment Counsel Inc410$317.0K0.02%00.0%Unchanged
CoreCap Advisors, LLC412$318.3K0.01%−383−48.2%Reduced
Versant Capital Management, Inc412$318.3K0.03%+141+52.0%Added
Agf Management Ltd415$320.6K0.00%−5−1.2%Reduced
DGS Capital Management, LLC415$320.6K0.05%+110+36.1%Added
Howe & Rusling Inc416$321.7K0.02%−18−4.1%Reduced
Uhlmann Price Securities, LLC436$323.4K0.02%+436New
Drive Wealth Management, LLC420$324.6K0.07%+47+12.6%Added
BayBridge Capital Group, LLC421$325.0K0.20%00.0%Unchanged
Elwood & Goetz Wealth Advisory Group, LLC423$326.8K0.06%−41−8.8%Reduced
Asset Allocation & Management Company, LLC423$327.0K0.12%+423New
McIntyre Freedman & Flynn Investment Advisers Inc426$329.1K0.19%00.0%Unchanged
NBC Securities, Inc.436$336.9K0.03%−21−4.6%Reduced
Exencial Wealth Advisors, LLC436$337.2K0.01%+5+1.2%Added
Chesley Taft & Associates LLC437$337.6K0.01%−800−64.7%Reduced
Insigneo Advisory Services, LLC437$337.8K0.02%−8−1.8%Reduced
Claret Asset Management Corp439$339.0K0.04%00.0%Unchanged
Hantz Financial Services, Inc.443$342.0K0.01%+172+63.5%Added
Guardian Wealth Advisors, LLC443$342.3K0.02%00.0%Unchanged
Bradley Foster & Sargent Inc447$345.4K0.01%−5−1.1%Reduced
Cim Investment Mangement Inc452$349.2K0.09%−2−0.4%Reduced
Bingham Private Wealth, LLC454$350.8K0.28%+37+8.9%Added
Flputnam Investment Management Co454$350.8K0.01%+44+10.7%Added
Turtle Creek Wealth Advisors, LLC454$350.8K0.03%+70+18.2%Added
Arjuna Capital457$353.1K0.09%+14+3.2%Added
Forefront Analytics, LLC460$355.0K0.32%+33+7.7%Added
Aviso Wealth Management460$355.4K0.16%−34−6.9%Reduced
Conning Inc.461$356.2K0.01%−70−13.2%Reduced
PDS Planning, Inc461$356.2K0.02%+3+0.7%Added
Dark Forest Capital Management LP461$356.2K0.03%+461New
Mutual Advisors, LLC461$356.4K0.01%−41−8.2%Reduced
Catalyst Financial Partners LLC462$357.0K0.04%+51+12.4%Added
Freestone Capital Holdings, LLC464$358.5K0.01%−1−0.2%Reduced
American Alpha Advisors, LLC468$361.6K0.21%+2+0.4%Added
SCS Capital Management LLC471$363.7K0.00%+1+0.2%Added
Fideuram Asset Management (Ireland) dac472$365.1K0.05%−12,639−96.4%Reduced
Golden State Equity Partners476$367.8K0.03%+121+34.1%Added
Greykasell Wealth Strategies, Inc.478$369.2K0.15%00.0%Unchanged
Moneta Group Investment Advisors LLC478$369.5K0.00%+51+11.9%Added
Johnson Investment Counsel Inc478$369.6K0.00%+15+3.2%Added
MBL Wealth, LLC480$370.9K0.03%+480New
Telos Capital Management, Inc.482$372.4K0.04%−3−0.6%Reduced
Great Diamond Partners, LLC484$374.0K0.07%−10−2.0%Reduced
Wealth Alliance485$374.7K0.04%+25+5.4%Added
Lighthouse Investment Partners, LLC485$374.7K0.01%−280−36.6%Reduced
Davenport & Co LLC488$377.0K0.00%+123+33.7%Added
Arvest Bank Trust Division488$377.0K0.02%+488New
Greenbush Financial Group, LLC489$377.5K0.12%+489New
Integrity Alliance, LLC.489$377.8K0.01%−13−2.6%Reduced
Tuttle Tactical Management492$380.1K0.63%+492New
Sowell Financial Services LLC496$383.5K0.01%+77+18.4%Added
Fielder Capital Group LLC498$384.8K0.08%+47+10.4%Added
Dempze Nancy E500$386.3K0.21%−200−28.6%Reduced
Westbourne Investments, Inc.500$386.3K0.18%00.0%Unchanged
Denali Advisors LLC500$386.3K0.04%+100+25.0%Added
Arista Wealth Management, LLC500$386.3K0.05%+500New
Resonant Capital Advisors, LLC501$387.1K0.02%+69+16.0%Added
Colonial River Wealth Management, LLC503$388.6K0.14%+11+2.2%Added
Northwest Wealth Management, LLC503$388.6K0.06%+29+6.1%Added
Tred Avon Family Wealth, LLC507$391.8K0.13%+17+3.5%Added
Paces Ferry Wealth Advisors, LLC510$394.0K0.16%00.0%Unchanged
Allegiance Financial Group Advisory Services LLC511$394.8K0.08%+120+30.7%Added
Samalin Investment Counsel, LLC511$394.9K0.14%−10−1.9%Reduced
Plimoth Trust Co LLC513$396.4K0.09%00.0%Unchanged
Old National Bancorp514$397.1K0.01%+35+7.3%Added
BSW Wealth Partners518$400.2K0.05%−208−28.7%Reduced
Camden Capital, LLC519$400.8K0.03%−118−18.5%Reduced
Capital Analysts, LLC520$402.0K0.01%−2−0.4%Reduced
Pure Financial Advisors, Inc.523$404.5K0.01%+26+5.2%Added
DRW Securities, LLC528$405.0K0.02%−64−10.8%Reduced
D.A. Davidson & Co.525$405.6K0.00%−19−3.5%Reduced
Investment House LLC525$405.6K0.02%−15−2.8%Reduced
K.J. Harrison & Partners Inc526$406.4K0.07%−5,565−91.4%Reduced
Jackson Square Capital, LLC527$407.2K0.09%00.0%Unchanged
Resources Investment Advisors, LLC.528$408.1K0.00%−41−7.2%Reduced
Commerzbank Aktiengesellschaft539$416.0K0.01%−39−6.7%Reduced
Everpar Advisors LLC543$419.5K0.14%+38+7.5%Added
First Western Trust Bank544$420.3K0.02%00.0%Unchanged
Hudson Value Partners, LLC547$422.6K0.13%−100−15.5%Reduced
Mission Wealth Management, LP547$422.9K0.01%−42−7.1%Reduced
Compagnie Lombard Odier SCmA550$425.0K0.01%+100+22.2%Added
Dorsey & Whitney Trust CO LLC551$425.5K0.02%−2−0.4%Reduced
Northwest & Ethical Investments L.P.561$428.2K0.01%−154−21.5%Reduced
Equitable Trust Co556$429.6K0.02%+31+5.9%Added
Abner Herrman & Brock LLC557$430.0K0.05%00.0%Unchanged
Kaufman Rossin Wealth, LLC559$432.3K0.25%−132−19.1%Reduced
Pinnacle Wealth Planning Services, Inc.560$432.7K0.04%+94+20.2%Added
Larson Financial Group LLC561$433.6K0.01%+73+15.0%Added
Ausdal Financial Partners, Inc.561$434.0K0.02%−90−13.8%Reduced
Lebenthal Global Advisors, LLC562$434.3K0.06%−79−12.3%Reduced
Keudell/Morrison Wealth Management567$438.1K0.09%−27−4.5%Reduced
Childress Capital Advisors, LLC567$438.1K0.08%+158+38.6%Added
Tidemark, LLC567$438.4K0.11%+46+8.8%Added
YHB Investment Advisors, Inc.568$438.9K0.03%00.0%Unchanged
Claro Advisors LLC568$438.9K0.05%+11+2.0%Added
Capital Investment Advisors, LLC569$439.3K0.01%+39+7.4%Added
New England Research & Management, Inc.575$444.3K0.19%+75+15.0%Added
LCM Capital Management Inc581$448.9K0.23%+13+2.3%Added
Mather Group, LLC.581$449.2K0.00%−133−18.6%Reduced
NewEdge Wealth, LLC585$452.3K0.01%−781−57.2%Reduced