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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 2025

Institutional positions in Regeneron Pharmaceuticals, Inc. as of Mar 31, 2025. 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
1,290
−10 vs. Q4 2024
Shares held
93.1M
+238.3K (+0.3%) vs. Q4 2024
Total value
$59.0B
−$7.18B (−10.8%) vs. Q4 2024
New holders
140
527 more added
Sold out
150
452 more reduced

20 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: 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 2025: 1,290 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 2025: $59.0B
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 2025

Shares, value and share of portfolio for each institution holding Regeneron Pharmaceuticals, Inc.; share changes are against Q4 2024.

Institutions holding REGN in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Grandfield & Dodd, LLC33,207$21.1M1.31%+611+1.9%Added
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund33,252$21.1M0.25%+2,600+8.5%Added
Mediolanum International Funds Ltd33,220$21.2M0.29%+28,771+646.7%Added
Corebridge Financial, Inc.33,424$21.2M0.12%−1,228−3.5%Reduced
Balyasny Asset Management LLC33,527$21.3M0.05%+4,736+16.4%Added
Wealth Enhancement Advisory Services, LLC33,745$21.4M0.04%−12,246−26.6%Reduced
Sanctuary Advisors, LLC34,124$21.6M0.15%−1,647−4.6%Reduced
STRS Ohio34,381$21.8M0.09%+725+2.2%Added
CIBC Asset Management Inc34,496$21.9M0.07%+110+0.3%Added
Abn Amro Investment Solutions34,740$22.0M0.46%−2,635−7.1%Reduced
Man Group plc35,586$22.6M0.07%−558−1.5%Reduced
State of New Jersey Common Pension Fund D36,246$23.0M0.10%−3,571−9.0%Reduced
State of Tennessee, Treasury Department36,885$23.4M0.09%−315−0.8%Reduced
Erste Asset Management GmbH37,033$23.6M0.30%−3,349−8.3%Reduced
Ossiam37,394$23.7M0.33%+21,221+131.2%Added
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main38,044$24.1M0.03%+27,482+260.2%Added
Stifel Financial Corp38,124$24.2M0.03%+38+0.1%Added
Banco Bilbao Vizcaya Argentaria, S.A.38,168$24.2M0.24%+649+1.7%Added
Resona Asset Management Co.,Ltd.38,436$24.4M0.14%+1,225+3.3%Added
Allspring Global Investments Holdings, LLC39,630$24.5M0.04%−3,844−8.8%Reduced
Mn Services Vermogensbeheer B.V.39,600$25.1M0.19%−2,900−6.8%Reduced
Lansforsakringar Fondforvaltning AB (publ)39,882$25.3M0.16%−1,751−4.2%Reduced
Glenmede Trust Co NA40,332$25.6M0.14%+3,322+9.0%Added
Federated Hermes, Inc.41,542$26.3M0.06%+5,579+15.5%Added
Atwood & Palmer Inc41,974$26.6M1.85%−1,709−3.9%Reduced
Capital International Ltd43,152$27.4M1.19%+2,184+5.3%Added
Public Employees Retirement System of Ohio43,489$27.6M0.10%−3,651−7.7%Reduced
Ensign Peak Advisors, Inc43,676$27.7M0.05%+2,027+4.9%Added
Nordea Investment Management AB44,220$28.0M0.03%+1,553+3.6%Added
Truist Financial Corp44,233$28.1M0.05%−15,070−25.4%Reduced
Jump Financial, LLC44,428$28.2M0.42%+25,634+136.4%Added
Baird Financial Group, Inc.44,596$28.3M0.05%+9,883+28.5%Added
Rafferty Asset Management, LLC44,702$28.4M0.12%−2,906−6.1%Reduced
Samlyn Capital, LLC45,914$29.1M0.48%+45,914New
Handelsbanken Fonder AB46,504$29.5M0.12%−1,650−3.4%Reduced
Allianz Asset Management GmbH46,720$29.6M0.04%−12,574−21.2%Reduced
Nisa Investment Advisors, LLC47,346$30.0M0.15%−1,510−3.1%Reduced
Schroder Investment Management Group47,820$30.3M0.03%−33,704−41.3%Reduced
KLP Kapitalforvaltning AS48,688$30.9M0.15%+300+0.6%Added
Treasurer of the State of North Carolina48,758$30.9M0.12%−9,365−16.1%Reduced
Toronto Dominion Bank49,168$31.2M0.08%−10,837−18.1%Reduced
Royal London Asset Management Ltd49,632$31.5M0.07%+5,548+12.6%Added
DnB Asset Management AS50,127$31.8M0.15%+14,323+40.0%Added
Cambiar Investors LLC50,310$31.9M1.35%+50,310New
Capitolis Liquid Global Markets LLC51,000$32.3M0.29%−36,000−41.4%Reduced
Mirae Asset Global Investments Co., Ltd.53,086$33.3M0.14%−2,340−4.2%Reduced
Twinbeech Capital LP53,101$33.7M0.61%+27,964+111.2%Added
Polar Capital Holdings Plc55,000$34.9M0.22%−1,249−2.2%Reduced
Van Eck Associates Corp55,227$35.0M0.05%−3,306−5.6%Reduced
LPL Financial LLC55,245$35.0M0.01%+2,455+4.7%Added
GuoLine Advisory Pte Ltd56,300$35.7M3.78%+9,940+21.4%Added
Trexquant Investment LP56,931$36.1M0.42%+306+0.5%Added
Prudential Financial Inc57,549$36.5M0.05%−1,485−2.5%Reduced
Healthcare of Ontario Pension Plan Trust Fund61,088$38.7M0.09%−4,215−6.5%Reduced
Asset Management One Co.,Ltd.62,338$39.5M0.14%+2,358+3.9%Added
Danske Bank A/S63,310$40.2M0.12%+3,216+5.4%Added
SG Americas Securities, LLC64,063$40.6M0.14%+62,122+3,200.5%Added
Spears Abacus Advisors LLC64,526$40.9M0.88%+48,471+301.9%Added
Korea Investment CORP65,940$41.8M0.10%−12,283−15.7%Reduced
State of Wisconsin Investment Board66,665$42.3M0.11%+6,772+11.3%Added
Mackenzie Financial Corp66,960$42.5M0.06%+11,928+21.7%Added
Rockefeller Capital Management L.P.67,608$42.9M0.11%−27,136−28.6%Reduced
Skandinaviska Enskilda Banken AB (publ)68,140$43.2M0.21%−188−0.3%Reduced
Mitsubishi UFJ Trust & Banking Corp68,540$43.5M0.11%−2,108−3.0%Reduced
Natixis69,429$44.1M0.26%−21,615−23.7%Reduced
Capital International Sarl70,134$44.5M1.01%+5,099+7.8%Added
Marex Group plc70,868$44.9M0.86%+603+0.9%Added
APG Asset Management N.V.77,407$45.4M0.14%−4,348−5.3%Reduced
Capital International Inc73,211$46.4M0.56%+2,606+3.7%Added
Citadel Advisors LLC74,902$47.5M0.05%−117,444−61.1%Reduced
Aviva PLC75,360$47.8M0.12%+10,220+15.7%Added
Macquarie Group Ltd78,838$50.0M0.06%−175−0.2%Reduced
Renaissance Technologies LLC78,901$50.0M0.08%−168,842−68.2%Reduced
Pinnacle Associates Ltd81,013$51.4M0.75%+18,550+29.7%Added
Capital Research Global Investors82,113$52.1M0.01%+82,113New
Seizert Capital Partners, LLC82,672$52.4M2.40%+28,368+52.2%Added
Harvest Portfolios Group Inc.82,924$52.6M1.55%+11,555+16.2%Added
AXA S.A.83,266$52.8M0.17%+2,902+3.6%Added
Grantham, Mayo, Van Otterloo & Co. LLC83,330$52.9M0.17%+20,351+32.3%Added
FIL Ltd85,073$54.0M0.05%−20,968−19.8%Reduced
Tocqueville Asset Management L.P.85,929$54.5M0.89%+85,929New
Mirae Asset Global ETFs Holdings Ltd.87,637$55.6M0.12%+5,118+6.2%Added
Loring Wolcott & Coolidge Fiduciary Advisors LLP96,473$56.7M0.55%−9,618−9.1%Reduced
Groupama Asset Managment90,612$57.8M1.15%+10,273+12.8%Added
New York State Teachers Retirement System91,707$58.2M0.13%−6,104−6.2%Reduced
Adage Capital Partners GP, L.L.C.92,745$58.8M0.11%+48,396+109.1%Added
Capital Fund Management S.A.92,810$58.9M0.75%+35,855+63.0%Added
Nomura Asset Management Co Ltd93,292$59.2M0.18%+778+0.8%Added
Jane Street Group, LLC96,459$61.2M0.11%+4,803+5.2%Added
Victory Capital Management Inc97,169$61.6M0.06%−42,722−30.5%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)97,368$61.8M0.18%−42,590−30.4%Reduced
Viking Global Investors LPSuperinvestorViking Global Investors97,739$62.0M0.20%+97,739New
National Bank of Canada97,984$62.1M0.07%−5,667−5.5%Reduced
State Board of Administration of Florida Retirement System102,736$65.2M0.13%−140−0.1%Reduced
Panagora Asset Management Inc102,948$65.3M0.33%−334−0.3%Reduced
Virginia Retirement Systems Et Al103,054$65.4M0.49%+103,054New
Assetmark, Inc103,633$65.7M0.18%+2,658+2.6%Added
Woodline Partners LP106,217$67.4M0.44%+2,938+2.8%Added
Capital Group Private Client Services, Inc.111,002$70.4M0.69%+19,672+21.5%Added
Raymond James Financial Inc111,509$70.7M0.03%+20,006+21.9%Added