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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, Q3 2025

Institutional positions in Regeneron Pharmaceuticals, Inc. as of Sep 30, 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
1,243
+62 vs. Q2 2025
Shares held
87.1M
−936.8K (−1.1%) vs. Q2 2025
Total value
$49.0B
+$2.72B (+5.9%) vs. Q2 2025
New holders
173
487 more added
Sold out
111
418 more reduced

20 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2025: 1,243 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 heldQ3 2025: $49.0B
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, Q3 2025

Shares, value and share of portfolio for each institution holding Regeneron Pharmaceuticals, Inc.; share changes are against Q2 2025.

Institutions holding REGN in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Universal- Beteiligungs- und Servicegesellschaft mbH108,044$60.7M0.10%+1,486+1.4%Added
Harvest Portfolios Group Inc.107,547$60.5M1.12%+8,547+8.6%Added
Capital Research Global Investors105,749$59.5M0.01%+3,635+3.6%Added
Envestnet Asset Management Inc101,561$57.1M0.02%−1,861−1.8%Reduced
Parnassus Investments101,023$56.8M0.13%−61−0.1%Reduced
HRT Financial LP98,849$55.6M0.20%+78,225+379.3%Added
Zurcher Kantonalbank (Zurich Cantonalbank)98,843$55.6M0.13%−6,379−6.1%Reduced
Seizert Capital Partners, LLC98,790$55.5M2.41%+12,810+14.9%Added
Jane Street Group, LLC96,710$54.4M0.06%+40,686+72.6%Added
Bank of Montreal96,269$54.1M0.02%−28,327−22.7%Reduced
State Board of Administration of Florida Retirement System95,966$54.0M0.09%−8,249−7.9%Reduced
Los Angeles Capital Management LLC95,335$53.6M0.18%+87,926+1,186.7%Added
Loring Wolcott & Coolidge Fiduciary Advisors LLP91,727$52.8M0.46%−8,186−8.2%Reduced
PGGM Investments92,584$52.1M0.84%+8,187+9.7%Added
Mirae Asset Global ETFs Holdings Ltd.91,383$51.3M0.08%+11,001+13.7%Added
Great West Life Assurance Co91,004$51.0M0.07%+3,910+4.5%Added
Walleye Capital LLC87,474$49.2M0.40%+25,703+41.6%Added
Macquarie Group Ltd86,668$48.7M0.06%+9,943+13.0%Added
New York State Teachers Retirement System86,587$48.7M0.09%−992−1.1%Reduced
Aviva PLC84,282$47.4M0.09%+4,397+5.5%Added
Gotham Asset Management, LLC84,230$47.4M0.21%+57,225+211.9%Added
Pinnacle Associates Ltd84,191$47.3M0.63%+15,265+22.1%Added
Victory Capital Management Inc82,386$46.3M0.03%−87,892−51.6%Reduced
Cubist Systematic Strategies, LLC79,264$44.6M0.63%−15,678−16.5%Reduced
Panagora Asset Management Inc77,673$43.7M0.18%+75,493+3,463.0%Added
Capitolis Liquid Global Markets LLC75,000$42.2M0.34%−93,000−55.4%Reduced
Janus Henderson Group PLC73,743$41.5M0.02%+60,655+463.4%Added
Banco Santander, S.A.71,135$40.0M0.36%+51,577+263.7%Added
Worldquant Millennium Advisors LLC67,384$37.9M0.16%+67,384New
GuoLine Advisory Pte Ltd67,300$37.8M3.77%00.0%Unchanged
Prudential Financial Inc67,067$37.7M0.04%+5,750+9.4%Added
Squarepoint Ops LLC66,271$37.3M0.08%−231,420−77.7%Reduced
APG Asset Management N.V.77,451$37.1M0.10%−240.0%Reduced
Clearbridge Investments, LLC64,726$36.4M0.03%+52,881+446.4%Added
Freestone Grove Partners LP64,229$36.1M0.27%+20,818+48.0%Added
Treasurer of the State of North Carolina63,861$35.9M0.11%−4,865−7.1%Reduced
Natixis63,787$35.9M0.19%−8,393−11.6%Reduced
Handelsbanken Fonder AB63,049$35.5M0.11%+12,547+24.8%Added
Mitsubishi UFJ Trust & Banking Corp62,820$35.3M0.08%−5,924−8.6%Reduced
Groupama Asset Managment62,701$35.3M0.52%−5,169−7.6%Reduced
Mirae Asset Global Investments Co., Ltd.62,569$35.2M0.11%+5,403+9.5%Added
LPL Financial LLC62,532$35.2M0.01%+6,171+10.9%Added
Nordea Investment Management AB62,971$35.1M0.03%+15,983+34.0%Added
AXA Investment Managers S.A.62,291$35.0M0.09%+62,291New
State of Wisconsin Investment Board62,084$34.9M0.08%+5,072+8.9%Added
Grantham, Mayo, Van Otterloo & Co. LLC61,474$34.6M0.10%−3,809−5.8%Reduced
Korea Investment CORP61,457$34.6M0.07%+5,181+9.2%Added
Quadrature Capital Ltd61,050$34.3M0.41%−9,399−13.3%Reduced
Woodline Partners LP60,964$34.3M0.16%+2,186+3.7%Added
Asset Management One Co.,Ltd.60,539$34.0M0.10%−305−0.5%Reduced
Cambiar Investors LLC59,094$33.2M1.51%−3,376−5.4%Reduced
Capital Fund Management S.A.58,834$33.1M0.33%−14,043−19.3%Reduced
CenterBook Partners LP57,223$32.2M1.59%+5,632+10.9%Added
Skandinaviska Enskilda Banken AB (publ)56,974$32.0M0.13%−11,166−16.4%Reduced
Van Eck Associates Corp56,518$31.8M0.03%−10.0%Reduced
LSV Asset Management55,600$31.3M0.07%+55,600New
Danske Bank A/S55,527$31.2M0.08%+4,865+9.6%Added
Toronto Dominion Bank54,896$30.9M0.06%−16,062−22.6%Reduced
Tocqueville Asset Management L.P.54,218$30.5M0.44%−6,884−11.3%Reduced
Nomura Asset Management Co Ltd53,791$30.2M0.08%−2,223−4.0%Reduced
CWM, LLC53,406$30.0M0.09%+17,900+50.4%Added
Virginia Retirement Systems Et Al53,054$29.8M0.19%00.0%Unchanged
KLP Kapitalforvaltning AS51,588$29.0M0.11%+10,100+24.3%Added
Marex Group plc50,958$28.7M0.35%−475−0.9%Reduced
Integral Health Asset Management, LLC50,000$28.1M2.05%00.0%Unchanged
Erste Asset Management GmbH48,736$27.3M0.26%−4,661−8.7%Reduced
Baird Financial Group, Inc.48,386$27.2M0.04%−593−1.2%Reduced
State of Tennessee, Treasury Department48,184$27.1M0.09%+6,405+15.3%Added
NEOS Investment Management LLC48,173$27.1M0.20%+16,123+50.3%Added
Point72 Europe (London) LLP47,908$26.9M1.46%+18,661+63.8%Added
DnB Asset Management AS47,271$26.6M0.10%+616+1.3%Added
Capital International Sarl46,792$26.3M0.45%−7,027−13.1%Reduced
Rafferty Asset Management, LLC46,472$26.1M0.08%−6,156−11.7%Reduced
HighTower Advisors, LLC45,731$25.7M0.03%+1,944+4.4%Added
Stifel Financial Corp45,443$25.6M0.02%+7,784+20.7%Added
Wedge Capital Management L L P45,195$25.4M0.43%+45,195New
SEI Investments Co45,033$25.3M0.03%+12,692+39.2%Added
Ieq Capital, LLC43,660$24.5M0.07%+39,747+1,015.8%Added
Guggenheim Capital LLC42,308$23.8M0.18%+2,076+5.2%Added
Public Employees Retirement System of Ohio41,663$23.4M0.07%−877−2.1%Reduced
Atwood & Palmer Inc41,431$23.3M1.37%−157−0.4%Reduced
Mn Services Vermogensbeheer B.V.40,500$22.8M0.15%+500+1.3%Added
Sanctuary Advisors, LLC38,937$21.9M0.13%+5,095+15.1%Added
Truist Financial Corp38,446$21.6M0.03%−503−1.3%Reduced
Lansforsakringar Fondforvaltning AB (publ)38,325$21.5M0.11%+1,365+3.7%Added
Banco Bilbao Vizcaya Argentaria, S.A.37,625$21.2M0.16%−51−0.1%Reduced
Capital International Inc37,370$21.0M0.17%−33,485−47.3%Reduced
State of New Jersey Common Pension Fund D37,169$20.9M0.08%+946+2.6%Added
Distillate Capital Partners LLC37,112$20.9M1.08%+9,129+32.6%Added
Grandfield & Dodd, LLC36,451$20.5M1.16%+1,246+3.5%Added
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main36,412$20.5M0.02%−3,257−8.2%Reduced
LMCG Investments, LLC36,265$20.4M1.20%+2,668+7.9%Added
Rhenman & Partners Asset Management AB36,100$20.3M2.25%+8,400+30.3%Added
Howland Capital Management LLC35,685$20.1M0.76%+3,890+12.2%Added
STRS Ohio35,585$20.0M0.07%−865−2.4%Reduced
Catalio Capital Management, LP35,344$19.9M3.67%+35,344New
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund35,252$19.8M0.17%−4,200−10.6%Reduced
Empowered Funds, LLC35,087$19.7M0.20%+25,687+273.3%Added
Credit Agricole S A34,444$19.4M0.06%+34,444New
Resona Asset Management Co.,Ltd.34,328$19.3M0.09%−5,371−13.5%Reduced