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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
Intech Investment Management LLC7,282$4.09M0.04%−613−7.8%Reduced
Insight Wealth Strategies, LLC7,278$4.09M0.48%+7,278New
Investment Management Corp of Ontario7,156$4.02M0.06%+2,407+50.7%Added
Atlantic Union Bankshares Corp7,115$4.00M0.08%+2,818+65.6%Added
O'Shaughnessy Asset Management, LLC6,989$3.93M0.02%+1,896+37.2%Added
Sicart Associates LLC6,981$3.93M1.06%+6,981New
ASR Vermogensbeheer N.V.6,917$3.89M0.05%−2,435−26.0%Reduced
Persistent Asset Partners Ltd6,911$3.89M2.81%+5,602+428.0%Added
Bedell Frazier Investment Counseling, LLC6,893$3.88M0.80%−522−7.0%Reduced
Modera Wealth Management, LLC6,874$3.87M0.04%−215−3.0%Reduced
Abn Amro Investment Solutions6,784$3.81M0.08%−854−11.2%Reduced
JB Capital LLC6,762$3.80M0.16%−142−2.1%Reduced
Callan Family Office, LLC6,744$3.79M0.12%+704+11.7%Added
Perigon Wealth Management, LLC6,701$3.77M0.08%+985+17.2%Added
Adviser Investments LLC6,604$3.71M0.04%−994−13.1%Reduced
Kentucky Retirement Systems6,548$3.68M0.10%−150−2.2%Reduced
F/M Investments LLC6,543$3.68M0.14%−145−2.2%Reduced
Pine Valley Investments Ltd Liability Co6,503$3.66M0.19%−1,606−19.8%Reduced
Ostrum Asset Management6,431$3.62M0.16%+753+13.3%Added
Superstring Capital Management LP6,401$3.60M3.55%+6,401New
Harvest Fund Management Co., Ltd6,393$3.60M0.15%+366+6.1%Added
Kempen Capital Management N.V.6,318$3.55M0.03%−776−10.9%Reduced
Cache Advisors, LLC6,300$3.54M0.62%−2,316−26.9%Reduced
Te Ahumairangi Investment Management Ltd6,260$3.52M0.60%+570+10.0%Added
Arnhold LLC6,228$3.50M0.29%00.0%Unchanged
Commerce Bank6,210$3.49M0.02%+57+0.9%Added
Ledyard National Bank6,122$3.44M0.31%−243−3.8%Reduced
Citizens Business Bank6,119$3.44M0.57%−6−0.1%Reduced
Simplex Trading, LLC6,114$3.44M0.08%+6,114New
Federation des caisses Desjardins du Quebec6,112$3.44M0.01%+307+5.3%Added
Madison Asset Management, LLC6,111$3.44M0.04%−290−4.5%Reduced
Dark Forest Capital Management LP6,069$3.41M0.13%+6,069New
Leuthold Group, LLC6,044$3.40M0.37%+6,044New
Siemens Fonds Invest GmbH6,026$3.39M0.19%+238+4.1%Added
Unison Advisors LLC6,015$3.38M0.31%+9+0.1%Added
Cornerstone Advisors, LLC6,000$3.37M0.11%−100−1.6%Reduced
Hartford Investment Management Co5,964$3.35M0.10%−292−4.7%Reduced
Capital Group Investment Management Pte. Ltd.5,956$3.35M0.56%−1,109−15.7%Reduced
Wealthfront Advisers LLC5,940$3.34M0.01%+1,325+28.7%Added
Evergreen Capital Management LLC5,914$3.33M0.08%−2,220−27.3%Reduced
Point72 (DIFC) Ltd5,840$3.28M0.23%−2,558−30.5%Reduced
AMG National Trust Bank5,788$3.25M0.08%−181−3.0%Reduced
US Bancorp5,702$3.21M0.00%+215+3.9%Added
Veracity Capital LLC5,622$3.16M1.02%+25+0.4%Added
Leonteq Securities AG5,551$3.12M0.17%+1,445+35.2%Added
Aigen Investment Management, LP5,535$3.11M0.48%−2,931−34.6%Reduced
Gilman Hill Asset Management, LLC5,521$3.10M0.49%+106+2.0%Added
B & T Capital Management DBA Alpha Capital Management5,512$3.10M0.49%+36+0.7%Added
Tower Research Capital LLC (TRC)5,510$3.10M0.09%+4,563+481.8%Added
RSM US Wealth Management LLC5,503$3.09M0.04%+533+10.7%Added
Walleye Trading LLC5,498$3.09M0.05%−2,253−29.1%Reduced
Steward Partners Investment Advisory, LLC5,494$3.09M0.02%+1,208+28.2%Added
Tema ETFs LLC5,371$3.02M0.25%+64+1.2%Added
M&T Bank Corp5,339$3.00M0.01%−590−10.0%Reduced
Gulf International Bank (UK) Ltd5,338$3.00M0.10%−109−2.0%Reduced
Dana Investment Advisors, Inc.5,313$2.99M0.09%+5,313New
Exchange Traded Concepts, LLC5,309$2.99M0.03%+1,369+34.7%Added
Oxbow Advisors, LLC5,247$2.95M0.27%+5,247New
Brevan Howard Capital Management LP5,240$2.95M0.04%−1,442−21.6%Reduced
Metis Global Partners, LLC5,211$2.93M0.07%−286−5.2%Reduced
Maryland State Retirement & Pension System5,149$2.90M0.06%+80+1.6%Added
Securian Asset Management, Inc4,976$2.80M0.07%−458−8.4%Reduced
Game Creek Capital, LP4,925$2.77M1.19%+1,850+60.2%Added
Victrix Investment Advisors4,900$2.76M1.51%00.0%Unchanged
Dillon & Associates Inc4,897$2.75M0.35%−8,447−63.3%Reduced
Sanibel Captiva Trust Company, Inc.4,822$2.71M0.08%−43−0.9%Reduced
Dai-Ichi Life Insurance Company, Ltd4,779$2.69M0.07%+1,300+37.4%Added
New Mexico Educational Retirement Board4,700$2.64M0.08%−200−4.1%Reduced
Fisher Asset Management, LLC4,637$2.61M0.00%+284+6.5%Added
Machina Capital S.A.S.4,615$2.59M0.46%+4,615New
Ci Investments Inc.4,594$2.58M0.01%+343+8.1%Added
Meeder Asset Management Inc4,530$2.55M0.15%−1,106−19.6%Reduced
Royal London Asset Management Ltd4,507$2.53M0.01%−42,064−90.3%Reduced
Moran Wealth Management, LLC4,501$2.53M0.08%−89−1.9%Reduced
Augustine Asset Management Inc4,477$2.52M0.51%−31−0.7%Reduced
Benjamin Edwards Inc4,436$2.49M0.03%+559+14.4%Added
Linden Thomas Advisory Services, LLC4,413$2.48M0.25%+178+4.2%Added
Fox Run Management, L.L.C.4,413$2.48M0.39%+4,413New
Ameritas Investment Partners, Inc.4,406$2.48M0.08%−51−1.1%Reduced
K.J. Harrison & Partners Inc4,091$2.45M0.35%+2,090+104.4%Added
Stiles Financial Services Inc4,353$2.45M0.77%−5−0.1%Reduced
E. Ohman J:or Asset Management AB4,320$2.43M0.06%00.0%Unchanged
Winton Group Ltd4,319$2.43M0.09%+2,966+219.2%Added
Boothbay Fund Management, LLC4,240$2.38M0.06%+1,541+57.1%Added
BI Asset Management Fondsmaeglerselskab A/S4,233$2.38M0.02%−751−15.1%Reduced
Sarissa Capital Management LP4,190$2.36M1.31%+4,190New
AG2R la Mondiale Gestion D'Actifs4,453$2.34M0.12%00.0%Unchanged
GWM Advisors LLC4,032$2.27M0.01%+2,094+108.0%Added
Cambridge Investment Research Advisors, Inc.4,021$2.26M0.01%+116+3.0%Added
Headlands Technologies LLC4,014$2.26M0.18%−8,639−68.3%Reduced
AE Wealth Management LLC4,004$2.25M0.01%+1,371+52.1%Added
Krensavage Asset Management, LLC4,000$2.25M0.96%00.0%Unchanged
Signet Financial Management, LLC3,995$2.25M0.26%+12+0.3%Added
Advisory Services Network, LLC3,981$2.24M0.03%−49−1.2%Reduced
Sepio Capital, LP3,980$2.24M0.13%+23+0.6%Added
Glenview Trust Co3,968$2.23M0.04%−10−0.3%Reduced
Sectoral Asset Management Inc3,968$2.23M1.38%+1,195+43.1%Added
Morningstar Investment Management LLC3,918$2.20M0.08%+2,759+238.1%Added
Eisler Capital Management Ltd.3,838$2.20M0.05%−2,254−37.0%Reduced
Point72 Asia (Singapore) Pte. Ltd.3,901$2.19M0.34%+413+11.8%Added