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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, Q4 2023

Institutional positions in Regeneron Pharmaceuticals, Inc. as of Dec 31, 2023. 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
1,274
+117 vs. Q3 2023
Shares held
91.5M
+429.2K (+0.5%) vs. Q3 2023
Total value
$80.3B
+$5.38B (+7.2%) vs. Q3 2023
New holders
186
441 more added
Sold out
69
442 more reduced

23 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2023: 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 holdersQ4 2023: 1,274 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 heldQ4 2023: $80.3B
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, Q4 2023

Shares, value and share of portfolio for each institution holding Regeneron Pharmaceuticals, Inc.; share changes are against Q3 2023.

Institutions holding REGN in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
DnB Asset Management AS32,293$28.4M0.15%+1,532+5.0%Added
Adams Diversified Equity Fund, Inc.32,300$28.4M1.12%00.0%Unchanged
NewEdge Wealth, LLC32,719$28.7M0.73%+4,287+15.1%Added
Martingale Asset Management L P32,782$28.8M0.59%−1,473−4.3%Reduced
Voloridge Investment Management, LLC33,209$29.2M0.11%+600+1.8%Added
CI Private Wealth, LLC33,561$29.5M0.05%+2,537+8.2%Added
Baird Financial Group, Inc.33,861$29.7M0.07%+255+0.8%Added
STRS Ohio34,092$29.9M0.12%+2,837+9.1%Added
Rafferty Asset Management, LLC34,176$30.0M0.13%+2,121+6.6%Added
HighTower Advisors, LLC34,581$30.6M0.05%−606−1.7%Reduced
Nikko Asset Management Americas, Inc.35,019$30.7M0.30%−1,733−4.7%Reduced
Pinebridge Investments, L.P.35,629$31.3M0.29%−627−1.7%Reduced
PGGM Investments36,029$31.6M0.48%−20,613−36.4%Reduced
Rhenman & Partners Asset Management AB39,000$34.3M3.42%−1,000−2.5%Reduced
American International Group, Inc.39,444$34.6M0.14%+41+0.1%Added
CIBC World Markets Corp39,496$34.7M0.19%+21,325+117.4%Added
Banco Bilbao Vizcaya Argentaria, S.A.40,120$35.2M0.42%−559−1.4%Reduced
Erste Asset Management GmbH40,880$36.0M0.53%+2,410+6.3%Added
Aviva PLC41,368$36.3M0.13%−3,524−7.8%Reduced
Hudson Bay Capital Management LP41,500$36.4M0.32%+41,500New
Royal London Asset Management Ltd41,649$36.6M0.10%+1,068+2.6%Added
LPL Financial LLC41,651$36.6M0.02%+918+2.3%Added
Stifel Financial Corp41,679$36.6M0.05%+10,649+34.3%Added
Balyasny Asset Management LLC41,993$36.9M0.10%+40,065+2,078.1%Added
Schroder Investment Management Group42,344$37.2M0.05%+8,901+26.6%Added
Boston Common Asset Management, LLC42,652$37.5M0.85%−1,790−4.0%Reduced
Guggenheim Capital LLC42,944$37.7M0.29%+3,403+8.6%Added
Squarepoint Ops LLC43,163$37.9M0.15%+27,596+177.3%Added
Truist Financial Corp44,381$39.0M0.06%−8,062−15.4%Reduced
Atwood & Palmer Inc44,474$39.1M3.16%−851−1.9%Reduced
Acadian Asset Management LLC45,285$39.7M0.15%−26,007−36.5%Reduced
J. Goldman & Co LP45,603$40.1M2.24%−170.0%Reduced
Krensavage Asset Management, LLC47,256$41.5M14.73%00.0%Unchanged
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main47,383$41.6M0.06%−336−0.7%Reduced
State of Tennessee, Treasury Department48,264$42.4M0.17%−2,154−4.3%Reduced
Fred Alger Management, LLC50,597$44.4M0.24%−12,323−19.6%Reduced
Mn Services Vermogensbeheer B.V.50,700$44.5M0.40%−1,800−3.4%Reduced
Allspring Global Investments Holdings, LLC52,299$45.9M0.08%+18,361+54.1%Added
Capital International Inc53,568$47.0M0.73%+1,655+3.2%Added
State of Wisconsin Investment Board55,683$48.9M0.14%−1,724−3.0%Reduced
Asset Management One Co.,Ltd.55,495$48.9M0.20%+3,095+5.9%Added
Seizert Capital Partners, LLC55,771$49.0M2.48%−3,024−5.1%Reduced
Mackenzie Financial Corp56,285$49.4M0.07%−61−0.1%Reduced
Storebrand Asset Management AS57,017$50.1M0.18%−1,159−2.0%Reduced
Treasurer of the State of North Carolina58,608$51.5M0.25%+230+0.4%Added
Nomura Asset Management Co Ltd58,923$51.8M0.21%+1,439+2.5%Added
Armistice Capital, LLC60,000$52.7M1.40%−14,998−20.0%Reduced
Harvest Portfolios Group Inc.61,001$53.6M2.27%−3,601−5.6%Reduced
State of New Jersey Common Pension Fund D61,270$53.8M0.18%−156−0.3%Reduced
Toronto Dominion Bank61,608$54.1M0.08%+1,892+3.2%Added
Envestnet Asset Management Inc63,483$55.8M0.02%+5,794+10.0%Added
Van Eck Associates Corp64,337$56.5M0.10%+7,509+13.2%Added
Two Sigma Investments, LP65,218$57.3M0.14%−23,497−26.5%Reduced
KBC Group NV65,527$57.6M0.20%−1,058−1.6%Reduced
Loring Wolcott & Coolidge Fiduciary Advisors LLP61,446$57.9M0.57%+17,529+39.9%Added
Zurcher Kantonalbank (Zurich Cantonalbank)65,960$57.9M0.22%+552+0.8%Added
Public Employees Retirement System of Ohio66,426$58.3M0.23%+158+0.2%Added
Pinnacle Associates Ltd66,965$58.8M0.99%−518−0.8%Reduced
Raymond James & Associates66,999$58.8M0.04%+5,499+8.9%Added
Grantham, Mayo, Van Otterloo & Co. LLC67,100$58.9M0.26%+9,160+15.8%Added
Groupama Asset Managment67,371$59.2M1.54%+67,371New
Avidity Partners Management LP68,000$59.7M2.28%+10,000+17.2%Added
Jane Street Group, LLC73,803$64.8M0.08%+34,393+87.3%Added
Prudential Financial Inc76,984$66.6M0.10%−15,201−16.5%Reduced
Skandinaviska Enskilda Banken AB (publ)75,927$66.7M0.39%−487−0.6%Reduced
Voya Investment Management LLC76,029$66.8M0.07%−1,278−1.7%Reduced
Macquarie Group Ltd78,738$69.2M0.08%−23,013−22.6%Reduced
FIL Ltd79,646$70.0M0.07%+18,654+30.6%Added
Glenmede Trust Co NA82,845$72.8M0.38%−1,913−2.3%Reduced
Bank Julius Baer & Co. Ltd, Zurich91,271$78.2M0.35%+7,170+8.5%Added
Mitsubishi UFJ Trust & Banking Corp89,471$78.6M0.18%−973−1.1%Reduced
Susquehanna International Group, LLP90,197$79.2M0.13%+35,337+64.4%Added
Assetmark, Inc92,171$81.0M0.29%+1,552+1.7%Added
Victory Capital Management Inc92,891$81.6M0.09%+3,977+4.5%Added
Capital Group Private Client Services, Inc.93,012$81.7M0.84%+336+0.4%Added
Man Group plc93,560$82.2M0.24%––
Marshall Wace, LLP94,526$83.0M0.16%−10,751−10.2%Reduced
Handelsbanken Fonder AB95,040$83.5M0.41%−33,986−26.3%Reduced
Perpetual Ltd100,219$88.0M0.91%−6,335−5.9%Reduced
Korea Investment CORP100,601$88.4M0.23%+4,805+5.0%Added
TD Asset Management Inc102,513$90.0M0.09%−77,754−43.1%Reduced
ProShare Advisors LLC103,599$91.0M0.28%−18,022−14.8%Reduced
Swedbank AB103,943$91.3M0.15%+57,238+122.6%Added
Rockefeller Capital Management L.P.105,611$92.8M0.31%+1,600+1.5%Added
New York State Teachers Retirement System106,938$93.9M0.21%−3,029−2.8%Reduced
Bridgewater Associates, LP110,132$96.7M0.54%+49,383+81.3%Added
Natixis Advisors, L.P.110,417$97.0M0.26%−604−0.5%Reduced
AXA S.A.110,477$97.0M0.31%−3,564−3.1%Reduced
Great West Life Assurance Co111,988$97.8M0.21%−11,375−9.2%Reduced
Janus Henderson Group PLC112,829$99.1M0.06%−9,584−7.8%Reduced
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.111,336$102.2M0.18%+5,603+5.3%Added
Citigroup Inc116,821$102.6M0.14%−27,665−19.1%Reduced
State Board of Administration of Florida Retirement System117,705$103.4M0.22%+5,965+5.3%Added
Wells Fargo & Company118,434$104.0M0.03%+1,870+1.6%Added
National Bank of Canada116,227$105.2M0.19%+71,838+161.8%Added
Robeco Institutional Asset Management B.V.120,291$105.7M0.26%+4,758+4.1%Added
Russell Investments Group, Ltd.121,030$106.3M0.19%−5,171−4.1%Reduced
Mirae Asset Global Investments Co., Ltd.124,317$109.2M0.22%−936−0.7%Reduced
Canada Pension Plan Investment Board126,906$111.5M0.14%−13,600−9.7%Reduced
Principal Financial Group Inc130,727$114.8M0.07%−628−0.5%Reduced