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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.

Q1 2026 vs. Q4 2025

How the institutions holding Regeneron Pharmaceuticals, Inc. changed between Q4 2025 and Q1 2026.

All holders in Q1 2026All holders in Q4 2025

13F holders of REGN: Q4 2025 compared with Q1 2026
MeasureQ4 2025Of which not filed for Q1 2026Q1 2026Change
Holders1,387241,401+38
Shares91.6M10.6M90.5M+9.56M (+11.8%)
Value$70.7B$8.18B$69.8B+$7.27B (+11.6%)

24 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (138)

Institutions that held Regeneron Pharmaceuticals, Inc. at the end of Q1 2026 but not at the end of Q4 2025.

Showing the largest 100 of 138 by value.

Institutions new to REGN in Q1 2026
InstitutionSharesValue% of portfolio
Vanguard Capital Management LLC6,654,913$5.14B0.13%
Vanguard Portfolio Management LLC1,720,774$1.33B0.07%
Vanguard Fiduciary Trust Co569,940$440.4M0.11%
Vanguard Global Advisers, LLC228,491$176.5M0.09%
Vanguard Asset Management, Ltd176,342$136.2M0.12%
Jennison Associates LLC115,199$89.0M0.06%
Capitolis Liquid Global Markets LLC75,000$57.9M0.37%
Vanguard Investments Australia, Ltd.51,305$39.6M0.11%
Vestal Point Capital, LP40,000$30.9M0.86%
Connor, Clark & Lunn Investment Management Ltd.32,164$24.9M0.06%
CIBC Bancorp USA Inc.25,263$19.5M0.03%
SEB Asset Management AB21,697$16.8M0.07%
CBOE Vest Financial, LLC19,363$15.0M0.18%
Voloridge Investment Management, LLC15,364$11.9M0.05%
OrbiMed Advisors LLC14,700$11.4M0.26%
Centiva Capital, LP14,610$11.3M0.53%
Brighton Jones LLC6,131$4.74M0.10%
Emerald Investment Advisers, LLC5,388$4.16M0.37%
Generate Investment Management Ltd4,908$3.79M0.19%
E Fund Management Co., Ltd.4,825$3.73M0.11%
Oliver Luxxe Assets LLC4,641$3.59M0.54%
Andra AP-fonden4,232$3.27M0.04%
Sivik Global Healthcare LLC4,000$3.09M2.35%
Lombard Odier Asset Management (Switzerland) SA3,883$3.00M0.11%
Gsa Capital Partners LLP3,831$2.96M0.18%
Saudi Central Bank3,812$2.95M0.06%
Aware Super Pty Ltd as trustee of Aware Super3,803$2.94M0.04%
Quantitative Investment Management, LLC3,014$2.33M0.24%
Militia Capital Management LLC3,000$2.32M0.52%
Boothbay Fund Management, LLC2,972$2.30M0.05%
Element Squared LLC2,936$2.27M1.28%
GeoWealth Management, LLC2,338$1.81M0.07%
Bull Harbor Capital LLC2,066$1.60M0.43%
Empire Financial Management Company, LLC1,826$1.41M0.32%
SummitTX Capital, L.P.1,713$1.32M0.04%
Blue Jean Financial LLC1,663$1.28M1.06%
Coastal Bridge Advisors, LLC1,521$1.18M0.08%
Cumberland Partners Ltd1,500$1.16M0.09%
Spartan Wealth Advisory Services LLC1,494$1.15M0.10%
USA Financial Portformulas Corp1,457$1.13M0.21%
Oasis Advisors, LLC1,440$1.11M0.22%
RFG Advisory, LLC1,376$1.06M0.02%
DoubleLine ETF Adviser LP1,316$1.02M0.39%
Tiaa-Cref Individual & Institutional Services, LLC1,310$1.01M0.00%
Polymer Capital Management (HK) LTD1,259$972.8K0.14%
Two Sigma Securities, LLC1,135$876.9K0.10%
Encore Global Management, LP1,100$849.9K0.59%
Magnetar Financial LLC1,130$846.7K0.01%
Fairvoy Private Wealth, LLC1,092$843.7K0.20%
Archford Capital Strategies, LLC1,038$802.0K0.09%
Azzad Asset Management Inc981$757.7K0.08%
Mount Yale Investment Advisors, LLC895$691.5K0.02%
Inceptionr LLC887$685.3K0.16%
J.W. Cole Advisors, Inc.855$660.8K0.02%
Integrated Advisors Network LLC828$639.4K0.03%
Alphadyne Asset Management LP754$582.6K0.08%
Nicolet Bankshares Inc705$544.7K0.02%
Supplemental Annuity Collective Trust of NJ682$526.9K0.15%
Portland Investment Counsel Inc.654$505.3K0.16%
Abundance Wealth Counselors649$501.4K0.07%
Oslo Pensjonsforsikring AS626$483.7K0.08%
Arista Wealth Management, LLC500$386.3K0.05%
Tuttle Tactical Management492$380.1K0.63%
Greenbush Financial Group, LLC489$377.5K0.12%
Arvest Bank Trust Division488$377.0K0.02%
MBL Wealth, LLC480$370.9K0.03%
Dark Forest Capital Management LP461$356.2K0.03%
Asset Allocation & Management Company, LLC423$327.0K0.12%
Uhlmann Price Securities, LLC436$323.4K0.02%
Lombard Odier Asset Management (USA) Corp395$305.2K0.16%
Patton Fund Management, Inc.391$302.1K0.05%
LifeGoal Wealth Advisors385$299.2K0.17%
Focused Wealth Management, Inc384$296.5K0.03%
Seelaus Asset Management LLC356$275.1K0.20%
Defiance ETFs, LLC355$274.3K0.00%
AXA S.A.353$272.7K0.11%
GLR Partners, LLC350$270.4K0.15%
Americana Partners, LLC338$261.2K0.01%
Weiss Asset Management LP336$259.6K0.00%
TRB Wealth Management, LLC330$255.0K0.04%
Sapient Capital LLC325$251.1K0.00%
Stonebridge Capital Management Inc320$247.2K0.11%
BlueSky Wealth Advisors, LLC320$247.2K0.03%
XTX Topco Ltd319$246.5K0.00%
Stevens Capital Management LP311$240.0K0.04%
Chicago Trust Co NA303$234.1K0.04%
Dutch Asset Corp300$231.8K0.16%
Investment Partners Asset Management, Inc.297$229.5K0.14%
Foundations Investment Advisors, LLC293$226.2K0.00%
MQS Management LLC291$224.8K0.15%
MONECO Advisors, LLC285$220.5K0.02%
Verdad Advisers, LP283$218.7K0.25%
BCJ Capital Management, LLC279$215.6K0.01%
Capital Management Associates, Inc279$215.6K0.05%
Winthrop Advisory Group LLC273$210.9K0.02%
McLean Asset Management Corp272$210.2K0.04%
Eagle Wealth Advisors LLC272$210.2K0.19%
S Harris Financial Group, LLC270$208.8K0.19%
Accurate Wealth Management, LLC277$207.4K0.02%
Fieldview Capital Management, LLC268$207.1K0.06%

Sold out (100)

Institutions that held Regeneron Pharmaceuticals, Inc. at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of REGN in Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Two Sigma Advisers, LP604,540$466.6M
Holocene Advisors, LP460,723$355.6M
Skandinaviska Enskilda Banken AB (publ)56,619$43.7M
Steadfast Capital Management LP35,200$27.2M
Catalio Capital Management, LP29,797$23.0M
Ofi Invest Asset Management31,265$20.5M
Nikko Asset Management Americas, Inc.16,171$12.5M
Diadema Partners LP10,300$7.95M
Eversept Partners, LP10,097$7.79M
Simplex Trading, LLC8,559$6.61M
Tang Capital Management LLC8,000$6.17M
Shellback Capital, LP7,384$5.70M
Sector Gamma AS7,165$5.53M
Freemont Management S.A.6,600$5.09M
L & S Advisors Inc4,653$3.59M
Edgestream Partners, L.P.4,591$3.54M
Cornerstone Advisors, LLC3,500$2.70M
Burney Co3,487$2.69M
Del-Sette Capital Management, LLC2,919$2.25M
VARCOV Co.2,500$1.93M
Camarda Financial Advisors, LLC2,037$1.57M
Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors1,817$1.40M
Legacy Capital Group California, Inc.1,716$1.32M
Jump Financial, LLC1,554$1.20M
Tiaa Trust, National Association1,426$1.10M
Redwood Investment Management, LLC1,422$1.10M
Scotia Capital Inc.1,316$1.02M
Richard Bernstein Advisors LLC1,181$911.6K
Capital Group Private Client Services, Inc.1,017$785.0K
Massar Capital Management, LP893$689.3K
Allianz SE892$688.5K
Qsemble Capital Management, LP851$656.9K
Optimize Financial Inc749$578.1K
Forum Financial Management, LP699$539.5K
Sage Mountain Advisors LLC686$529.9K
Quest Partners LLC662$511.0K
Robertson Stephens Wealth Management, LLC636$491.0K
Algert Global LLC636$490.9K
Catalyst Funds Management Pty Ltd630$486.3K
Whalen Wealth Management Inc.612$472.4K
Oversea-Chinese Banking CORP Ltd604$466.2K
Lifeworks Advisors, LLC562$433.6K
Taproot Management LP559$431.5K
McAdam, LLC517$399.1K
Capstone Investment Advisors, LLC511$394.4K
Axxcess Wealth Management, LLC488$376.7K
Clear Creek Financial Management, LLC459$354.1K
Anderson Hoagland & Co446$344.3K
Havemeyer Place LP428$330.4K
BCS Wealth Management400$308.7K
Bayforest Capital Ltd392$302.6K
ISAM Funds (UK) Ltd375$289.5K
Platform Technology Partners335$258.7K
Prelude Capital Management, LLC331$255.5K
Parallax Volatility Advisers, L.P.321$247.8K
GK Wealth Management LLC320$246.7K
Strategic Family Wealth Counselors, L.L.C.334$245.1K
Avantax Planning Partners, Inc.317$244.7K
QP Wealth Management, LLC310$239.3K
Eddie Patel Inc308$237.9K
Mach-1 Financial Group, Inc.293$226.2K
New Republic Capital, LLC290$223.8K
HCR Wealth Advisors286$220.8K
Armis Advisers, LLC294$215.5K
Crescent Sterling, Ltd.279$215.4K
Morgan Creek Capital Management, LLC276$213.0K
Boston Private Wealth LLC274$211.5K
Sentry Investment Management LLC262$202.0K
Brookstone Capital Management259$200.2K
TCTC Holdings, LLC202$155.9K
Optiver Holding B.V.183$141.3K
Reflection Asset Management140$108.1K
SageView Advisory Group, LLC134$103.5K
Kempen Capital Management N.V.116$89.5K
Purpose Unlimited Inc.113$87.2K
ARK Investment Management LLCSuperinvestorARK Invest110$84.7K
Elyxium Wealth, LLC105$81.1K
Berbice Capital Management LLC60$46.3K
Curat Global, LLC50$38.6K
Ramirez Asset Management, Inc.50$38.6K
Board of the Pension Protection Fund40$30.9K
Titan Wealth (CI) Ltd37$28.6K
PMV Capital Advisers, LLC24$18.5K
Howard Hughes Medical Institute22$17.0K
Garton & Associates Financial Advisors LLC12$9.29K
Wealth Watch Advisors, INC11$8.49K
Missouri Trust & Investment Co10$7.72K
Luken Investment Analytics, LLC8$6.17K
Winnow Wealth LLC5$3.86K
DV Trading LLC5$3.86K
Park Square Financial Group, LLC5$3.56K
Legacy Bridge, LLC4$3.09K
Eq Wealth Advisors, LLC4$3.09K
Cape Investment Advisory, Inc.3$2.32K
Optima Capital LLC3$2.32K
DAGCO, Inc.2$1.54K
Quattro Advisors LLC1$773
Delos Wealth Advisors, LLC1$772
Atomic Invest LLC1$515
Quest 10 Wealth Builders, Inc.1$463

Not filed for Q1 2026 yet (24)

Institutions that held Regeneron Pharmaceuticals, Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding REGN in Q4 2025 that haven't filed for Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Vanguard Group Inc9,075,153$7.00B
Norges Bank1,311,485$1.01B
Capitolis Liquid Global Markets LLC80,000$61.7M
Brandywine Global Investment Management, LLC23,076$17.8M
Forsta Ap-Fonden21,380$16.5M
Meritage Portfolio Management20,580$15.9M
CIBC World Markets Corp19,155$14.8M
Comerica Bank17,340$13.4M
RK Asset Management, LLC12,660$9.77M
SG Trading Solutions, LLC3,992$3.08M
Forefront Wealth Management Inc.2,849$2.20M
Militia Capital Partners, LP2,300$1.78M
CIBC Private Wealth Group, LLC1,943$1.50M
Global Retirement Partners, LLC1,499$1.16M
Clarius Group, LLC851$656.9K
MidWestOne Financial Group, Inc.563$434.6K
STF Management LP527$406.8K
DV Equities, LLC142$109.6K
GPS Wealth Strategies Group, LLC119$91.8K
ORG Partners LLC69$53.2K
Maryland Capital Advisors Inc.65$50.2K
Trust Co of Vermont35$27.0K
Motiv8 Investments LLC5$4.00K
Stephens Consulting, LLC1$772