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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 4 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
US Bancorp5,702$3.21M0.00%+215+3.9%Added
AMG National Trust Bank5,788$3.25M0.08%−181−3.0%Reduced
Point72 (DIFC) Ltd5,840$3.28M0.23%−2,558−30.5%Reduced
Evergreen Capital Management LLC5,914$3.33M0.08%−2,220−27.3%Reduced
Wealthfront Advisers LLC5,940$3.34M0.01%+1,325+28.7%Added
Capital Group Investment Management Pte. Ltd.5,956$3.35M0.56%−1,109−15.7%Reduced
Hartford Investment Management Co5,964$3.35M0.10%−292−4.7%Reduced
Cornerstone Advisors, LLC6,000$3.37M0.11%−100−1.6%Reduced
Unison Advisors LLC6,015$3.38M0.31%+9+0.1%Added
Siemens Fonds Invest GmbH6,026$3.39M0.19%+238+4.1%Added
Leuthold Group, LLC6,044$3.40M0.37%+6,044New
Dark Forest Capital Management LP6,069$3.41M0.13%+6,069New
Madison Asset Management, LLC6,111$3.44M0.04%−290−4.5%Reduced
Federation des caisses Desjardins du Quebec6,112$3.44M0.01%+307+5.3%Added
Simplex Trading, LLC6,114$3.44M0.08%+6,114New
Citizens Business Bank6,119$3.44M0.57%−6−0.1%Reduced
Ledyard National Bank6,122$3.44M0.31%−243−3.8%Reduced
Commerce Bank6,210$3.49M0.02%+57+0.9%Added
Arnhold LLC6,228$3.50M0.29%00.0%Unchanged
Te Ahumairangi Investment Management Ltd6,260$3.52M0.60%+570+10.0%Added
Cache Advisors, LLC6,300$3.54M0.62%−2,316−26.9%Reduced
Kempen Capital Management N.V.6,318$3.55M0.03%−776−10.9%Reduced
Harvest Fund Management Co., Ltd6,393$3.60M0.15%+366+6.1%Added
Superstring Capital Management LP6,401$3.60M3.55%+6,401New
Ostrum Asset Management6,431$3.62M0.16%+753+13.3%Added
Pine Valley Investments Ltd Liability Co6,503$3.66M0.19%−1,606−19.8%Reduced
F/M Investments LLC6,543$3.68M0.14%−145−2.2%Reduced
Kentucky Retirement Systems6,548$3.68M0.10%−150−2.2%Reduced
Adviser Investments LLC6,604$3.71M0.04%−994−13.1%Reduced
Perigon Wealth Management, LLC6,701$3.77M0.08%+985+17.2%Added
Callan Family Office, LLC6,744$3.79M0.12%+704+11.7%Added
JB Capital LLC6,762$3.80M0.16%−142−2.1%Reduced
Abn Amro Investment Solutions6,784$3.81M0.08%−854−11.2%Reduced
Modera Wealth Management, LLC6,874$3.87M0.04%−215−3.0%Reduced
Bedell Frazier Investment Counseling, LLC6,893$3.88M0.80%−522−7.0%Reduced
Persistent Asset Partners Ltd6,911$3.89M2.81%+5,602+428.0%Added
ASR Vermogensbeheer N.V.6,917$3.89M0.05%−2,435−26.0%Reduced
Sicart Associates LLC6,981$3.93M1.06%+6,981New
O'Shaughnessy Asset Management, LLC6,989$3.93M0.02%+1,896+37.2%Added
Atlantic Union Bankshares Corp7,115$4.00M0.08%+2,818+65.6%Added
Investment Management Corp of Ontario7,156$4.02M0.06%+2,407+50.7%Added
Insight Wealth Strategies, LLC7,278$4.09M0.48%+7,278New
Intech Investment Management LLC7,282$4.09M0.04%−613−7.8%Reduced
Hudson Capital Management LLC7,397$4.16M1.10%+1,292+21.2%Added
Thrivent Financial for Lutherans7,535$4.24M0.01%−1,978−20.8%Reduced
Wellington Management Group LLP7,620$4.28M0.00%−63,535−89.3%Reduced
Prevail Innovative Wealth Advisors, LLC7,628$4.29M0.83%+7,628New
Mizuho Securities USA LLC7,420$4.31M0.09%+241+3.4%Added
Fiduciary Trust Co7,851$4.41M0.05%+289+3.8%Added
Stratos Wealth Advisors, LLC7,992$4.49M0.22%−52−0.6%Reduced
Ellerson Group Inc8,102$4.56M2.83%+2,671+49.2%Added
Picton Mahoney Asset Management8,235$4.63M0.06%+8,234+823,400.0%Added
Teachers Retirement System of the State of Kentucky8,244$4.63M0.04%00.0%Unchanged
Biondo Investment Advisors, LLC8,264$4.65M0.58%−237−2.8%Reduced
Founders Capital Management, LLC8,277$4.65M0.73%+30.0%Added
Public Sector Pension Investment Board8,379$4.71M0.02%+788+10.4%Added
Cardinal Capital Management8,431$4.74M0.66%+115+1.4%Added
Apriem Advisors8,648$4.86M0.46%−469−5.1%Reduced
TB Alternative Assets Ltd.8,652$4.86M0.73%+5,494+174.0%Added
Rakuten Investment Management, Inc.58,906$4.89M0.02%+58,906New
Vinva Investment Management Ltd8,775$4.92M0.10%+2,093+31.3%Added
Prospera Financial Services Inc8,766$4.93M0.08%−5,367−38.0%Reduced
Norinchukin Bank, The8,811$4.95M0.07%−343−3.7%Reduced
Edgestream Partners, L.P.8,885$5.00M0.15%−1,488−14.3%Reduced
Colony Group, LLC9,152$5.15M0.01%+3,785+70.5%Added
Kayne Anderson Rudnick Investment Management LLC9,287$5.22M0.01%+317+3.5%Added
SRS Capital Advisors, Inc.9,442$5.31M0.08%+9,361+11,556.8%Added
UniSuper Management Pty Ltd9,559$5.37M0.03%+1,191+14.2%Added
Motley Fool Wealth Management, LLC9,622$5.41M0.37%+9,622New
Evergreen Wealth Management, LLC9,628$5.41M2.84%−808−7.7%Reduced
AIMZ Investment Advisors, LLC9,729$5.47M1.72%−125−1.3%Reduced
TD Waterhouse Canada Inc.9,196$5.51M0.04%+4,583+99.3%Added
Virtu Financial LLC9,863$5.55M0.31%+6,688+210.6%Added
Tang Capital Management LLC10,000$5.62M0.22%00.0%Unchanged
DCF Advisers, LLC10,000$5.62M2.13%+600+6.4%Added
Massmutual Trust Co FSB10,109$5.68M0.14%+1,267+14.3%Added
Jacobs & Co10,162$5.71M0.55%−132−1.3%Reduced
Legato Capital Management LLC10,203$5.74M0.62%+419+4.3%Added
Oddo BHF Asset Management SAS10,265$5.77M0.22%−16,696−61.9%Reduced
Yousif Capital Management, LLC10,291$5.79M0.06%−576−5.3%Reduced
Y-Intercept (Hong Kong) Ltd10,318$5.80M0.14%−24,556−70.4%Reduced
Vontobel Holding Ltd.10,363$5.83M0.02%+2,861+38.1%Added
Lazard Asset Management LLC10,380$5.84M0.01%+10,129+4,035.5%Added
Oak Associates, Ltd10,490$5.90M0.36%+2,298+28.1%Added
Banque Pictet & Cie SA10,588$5.95M0.06%+5,115+93.5%Added
Avanza Fonder AB10,597$5.96M0.15%+860+8.8%Added
Clear Harbor Asset Management, LLC10,637$5.98M0.42%+2,218+26.3%Added
Artia Global Partners LP10,671$6.00M1.06%00.0%Unchanged
Jump Financial, LLC10,714$6.02M0.08%+5,140+92.2%Added
Pinebridge Investments, L.P.10,890$6.12M0.05%+6,248+134.6%Added
Mutual of America Capital Management LLC11,024$6.20M0.07%−868−7.3%Reduced
JustInvest LLC11,072$6.23M0.06%+219+2.0%Added
First Horizon Corp11,083$6.23M0.29%+11,083New
PKO Investment Management Joint-Stock Co11,200$6.30M0.54%−7,600−40.4%Reduced
Rock Springs Capital Management LP11,300$6.35M0.37%00.0%Unchanged
Harvey Capital Management Inc11,402$6.41M1.37%−340−2.9%Reduced
Atria Investments LLC11,477$6.45M0.07%+8+0.1%Added
Beacon Investment Advisory Services, Inc.11,525$6.48M0.27%−11,990−51.0%Reduced
Hunter Perkins Capital Management, LLC11,616$6.53M1.45%+3,143+37.1%Added
OP Asset Management Ltd11,656$6.55M0.09%+311+2.7%Added