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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, Q2 2025

Institutional positions in Regeneron Pharmaceuticals, Inc. as of Jun 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
1,201
−73 vs. Q1 2025
Shares held
89.3M
−3.67M (−4.0%) vs. Q1 2025
Total value
$46.9B
−$12.0B (−20.4%) vs. Q1 2025
New holders
134
443 more added
Sold out
207
475 more reduced

16 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2025: 1,201 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 heldQ2 2025: $46.9B
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, Q2 2025

Shares, value and share of portfolio for each institution holding Regeneron Pharmaceuticals, Inc.; share changes are against Q1 2025.

Institutions holding REGN in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Parnassus Investments101,084$53.1M0.12%+101,084New
Mackenzie Financial Corp101,418$53.2M0.07%+34,458+51.5%Added
Capital Research Global Investors102,114$53.6M0.01%+20,001+24.4%Added
Envestnet Asset Management Inc103,422$54.3M0.02%−13,305−11.4%Reduced
State Board of Administration of Florida Retirement System104,215$54.7M0.10%+1,479+1.4%Added
Zurcher Kantonalbank (Zurich Cantonalbank)105,222$55.2M0.14%+7,854+8.1%Added
Universal- Beteiligungs- und Servicegesellschaft mbH106,558$55.9M0.10%−50,695−32.2%Reduced
Natixis Advisors, L.P.113,025$59.3M0.09%−3,207−2.8%Reduced
AQR Capital Management LLC114,742$59.7M0.05%−121,208−51.4%Reduced
Canada Pension Plan Investment Board120,803$63.4M0.05%−82,752−40.7%Reduced
Principal Financial Group Inc123,249$64.7M0.03%−6,376−4.9%Reduced
Bank of Montreal124,596$65.4M0.03%+10,832+9.5%Added
Assetmark, Inc127,621$67.0M0.16%+23,988+23.1%Added
New York State Common Retirement Fund128,069$67.2M0.09%−2,471−1.9%Reduced
Retirement Systems of Alabama129,163$67.8M0.24%−2,219−1.7%Reduced
Raymond James Financial Inc131,051$68.8M0.02%+19,542+17.5%Added
Wells Fargo & Company134,052$70.4M0.02%−11,634−8.0%Reduced
Candriam Luxembourg S.C.A.142,208$74.7M0.43%−72,733−33.8%Reduced
National Bank of Canada142,812$75.0M0.08%+44,828+45.8%Added
Point72 Asset Management, L.P.143,108$75.1M0.18%+143,108New
Healthcare of Ontario Pension Plan Trust Fund146,247$76.8M0.15%+85,159+139.4%Added
Balyasny Asset Management LLC153,436$80.6M0.18%+119,909+357.6%Added
Southeastern Asset Management IncSuperinvestorSoutheastern Asset Management (Longleaf)160,581$84.3M4.25%+45,701+39.8%Added
Susquehanna International Group, LLP164,092$86.1M0.13%+12,634+8.3%Added
California State Teachers Retirement System164,123$86.2M0.10%−1,973−1.2%Reduced
FIL Ltd166,086$87.2M0.07%+81,013+95.2%Added
Capitolis Liquid Global Markets LLC168,000$88.2M0.65%+117,000+229.4%Added
ProShare Advisors LLC169,343$88.9M0.18%+6,051+3.7%Added
Rhumbline Advisers170,659$89.6M0.08%−2,508−1.4%Reduced
Voya Investment Management LLC172,806$90.7M0.09%−16,438−8.7%Reduced
Russell Investments Group, Ltd.173,809$91.1M0.12%+27,069+18.4%Added
Victory Capital Management Inc170,278$91.3M0.06%+73,109+75.2%Added
First Trust Advisors LP184,044$96.6M0.08%+70,124+61.6%Added
Citigroup Inc184,246$96.7M0.07%−1,326−0.7%Reduced
Epoch Investment Partners, Inc.203,057$106.6M0.55%−4,399−2.1%Reduced
Standard Life Aberdeen plc203,750$107.0M0.18%−41,447−16.9%Reduced
Chevy Chase Trust Holdings, Inc.206,728$108.5M0.32%−14,482−6.5%Reduced
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.209,063$109.8M0.09%+10,213+5.1%Added
DekaBank Deutsche Girozentrale211,207$110.0M0.20%−9,969−4.5%Reduced
Bronte Capital Management Pty Ltd.187,870$111.1M8.73%+33,177+21.4%Added
Caisse de Depot Et Placement du Quebec214,722$112.7M0.24%−7,892−3.5%Reduced
McDonald Capital Investors Inc218,045$114.5M7.18%+21,272+10.8%Added
Swedbank AB228,297$119.9M0.13%+228,297New
Jacobs Levy Equity Management, Inc234,267$123.0M0.48%+233,520+31,261.0%Added
Marshall Wace, LLP239,909$126.0M0.15%+238,509+17,036.4%Added
Federated Hermes, Inc.245,587$128.9M0.24%+204,045+491.2%Added
Bank of Nova Scotia249,278$130.9M0.27%+126,689+103.3%Added
National Pension Service271,066$142.3M0.12%+18,020+7.1%Added
Voloridge Investment Management, LLC279,860$146.9M0.54%+51,590+22.6%Added
Ameriprise Financial Inc287,699$151.8M0.04%−52,446−15.4%Reduced
UBS Group AG293,515$154.1M0.03%+6,352+2.2%Added
Squarepoint Ops LLC297,691$156.3M0.34%+13,688+4.8%Added
Pictet Asset Management Holding SA304,127$159.3M0.16%+3,171+1.1%Added
Sumitomo Mitsui Trust Holdings, Inc.308,185$161.8M0.10%+4,516+1.5%Added
California Public Employees Retirement System314,716$165.2M0.11%−158,734−33.5%Reduced
TD Asset Management Inc322,857$169.5M0.14%−29,030−8.2%Reduced
Swiss National Bank323,700$169.9M0.10%+18,900+6.2%Added
Millennium Management LLC338,826$177.9M0.16%+169,241+99.8%Added
HSBC Holdings PLC362,124$189.9M0.12%−27,474−7.1%Reduced
Manufacturers Life Insurance Company, The379,537$199.3M0.18%−18,699−4.7%Reduced
Royal Bank of Canada384,879$202.1M0.04%+181,682+89.4%Added
Neuberger Berman Group LLC405,194$212.7M0.16%−31,314−7.2%Reduced
Assenagon Asset Management S.A.423,325$222.2M0.35%−58,064−12.1%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.440,424$231.2M0.56%−91,790−17.2%Reduced
Pacer Advisors, Inc.445,134$233.7M0.59%+37,764+9.3%Added
Acadian Asset Management LLC465,740$244.5M0.50%+326,583+234.7%Added
Barclays PLC483,026$253.6M0.10%+161,669+50.3%Added
Two Sigma Investments, LP499,828$262.4M0.47%+127,757+34.3%Added
Dimensional Fund Advisors LP519,437$272.7M0.06%−51,750−9.1%Reduced
BNP Paribas Arbitrage, SA524,358$275.3M0.21%−222,255−29.8%Reduced
Alliancebernstein L.P.587,227$308.3M0.10%−22,381−3.7%Reduced
Qube Research & Technologies Ltd625,980$328.6M0.46%−76,912−10.9%Reduced
American Century Companies Inc636,652$334.2M0.18%−85,815−11.9%Reduced
Bank of New York Mellon Corp656,624$344.7M0.07%−41,629−6.0%Reduced
Citadel Advisors LLC680,505$357.3M0.31%+605,603+808.5%Added
Deutsche Bank AG710,837$373.2M0.14%+167,745+30.9%Added
Charles Schwab Investment Management Inc720,273$378.1M0.07%+13,833+2.0%Added
Legal & General Group Plc739,581$388.3M0.10%−7,452−1.0%Reduced
Price T Rowe Associates Inc766,444$402.4M0.05%−1,408,582−64.8%Reduced
D. E. Shaw & Co., Inc.777,469$408.2M0.41%+198,580+34.3%Added
Goldman Sachs Group Inc796,206$418.0M0.07%−40,887−4.9%Reduced
Nuveen, LLC841,549$441.8M0.12%+299,531+55.3%Added
UBS Asset Management Americas Inc860,441$451.7M0.09%−79,895−8.5%Reduced
Amundi897,131$491.4M0.17%−706,770−44.1%Reduced
Two Sigma Advisers, LP938,500$492.7M1.01%+384,700+69.5%Added
Northern Trust Corp958,569$503.2M0.07%−43,181−4.3%Reduced
Invesco Ltd.1,075,824$564.8M0.10%+225,078+26.5%Added
Norges Bank1,196,479$628.2M0.08%+67,955+6.0%Added
Bank of America Corp1,220,359$640.7M0.05%+176,122+16.9%Added
Morgan Stanley1,287,663$676.0M0.04%+36,709+2.9%Added
Loomis Sayles & Co L P1,941,070$1.02B1.28%+305,089+18.6%Added
Capital World Investors1,966,018$1.03B0.15%+27,384+1.4%Added
Franklin Resources Inc2,313,496$1.21B0.32%+36,821+1.6%Added
Geode Capital Management, LLC2,465,054$1.29B0.09%−4,531−0.2%Reduced
Capital International Investors3,165,263$1.66B0.29%−823,869−20.7%Reduced
FMR LLC3,327,051$1.75B0.10%−4,271,533−56.2%Reduced
Dodge & Cox3,826,283$2.01B1.13%+1,502,198+64.6%Added
JPMorgan Chase & Co3,939,618$2.07B0.14%−1,718,579−30.4%Reduced
State Street Corp4,832,002$2.54B0.10%+42,343+0.9%Added
BlackRock, Inc.9,276,085$4.87B0.09%+350,205+3.9%Added