Regeneron Pharmaceuticals, Inc.

REGN

Exchange: Nasdaq
Industry: Pharmaceutical Preparations
SEC CIK: 0000872589

SEC filings (opens in a new tab)

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 2026

Institutional positions in Regeneron Pharmaceuticals, Inc. as of Sep 30, 2026. 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

Q3 2026 data is still coming in (13F filing deadline: Nov 16, 2026), so these numbers are incomplete.

Institutional holders: 2; 0 vs. Q2 2026
Shares held: 70; 0 (0.0%) vs. Q2 2026
Total value: $53.1K; +$9.44K (+21.6%) vs. Q2 2026
New holders: 0; 0 more added
Sold out: 0; 0 more reduced

1,340 institutions that held it in Q2 2026 haven't filed for Q3 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2026: 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 holders

Value held

Institutions holding REGN and their total value by quarter
Quarter	Holders	Value
Q2 2026	1,342	$57.1B
Q1 2026	1,401	$69.8B
Q4 2025	1,387	$70.7B
Q3 2025	1,243	$49.0B
Q2 2025	1,201	$46.9B
Q1 2025	1,290	$59.0B
Q4 2024	1,320	$66.6B
Q3 2024	1,393	$97.5B
Q2 2024	1,335	$98.9B
Q1 2024	1,313	$89.3B
Q4 2023	1,274	$80.3B
Q3 2023	1,180	$75.1B
Q2 2023	1,168	$66.2B
Q1 2023	1,196	$76.1B
Q4 2022	1,161	$66.9B
Q3 2022	1,081	$64.0B
Q2 2022	1,066	$55.0B
Q1 2022	1,097	$64.5B
Q4 2021	1,081	$56.9B
Q3 2021	1,022	$54.5B
Q2 2021	975	$49.6B
Q1 2021	926	$42.3B

Institutions, Q3 2026

Shares, value and share of portfolio for each institution holding Regeneron Pharmaceuticals, Inc.; share changes are against Q2 2026.

Institutions holding REGN in Q3 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
Lazard Asset Management LLC	–	–	–	–	Not filed
LMCG Investments, LLC	–	–	–	–	Not filed
Grandfield & Dodd, LLC	–	–	–	–	Not filed
Captrust Financial Advisors	–	–	–	–	Not filed
General American Investors Co Inc	–	–	–	–	Not filed
Spears Abacus Advisors LLC	–	–	–	–	Not filed
HRT Financial LP	–	–	–	–	Not filed
Distillate Capital Partners LLC	–	–	–	–	Not filed
Vinva Investment Management Ltd	–	–	–	–	Not filed
Regions Financial Corp	–	–	–	–	Not filed
Empowered Funds, LLC	–	–	–	–	Not filed
State of New Jersey Common Pension Fund D	–	–	–	–	Not filed
Noesis Capital Mangement Corp	–	–	–	–	Not filed
Vontobel Holding Ltd.	–	–	–	–	Not filed
Aquatic Capital Management LLC	–	–	–	–	Not filed
DDD Partners, LLC	–	–	–	–	Not filed
ING Groep NV	–	–	–	–	Not filed
Lansforsakringar Fondforvaltning AB (publ)	–	–	–	–	Not filed
Illinois Municipal Retirement Fund	–	–	–	–	Not filed
Nissay Asset Management Corp	–	–	–	–	Not filed
XTX Topco Ltd	–	–	–	–	Not filed
Resona Asset Management Co.,Ltd.	–	–	–	–	Not filed
Mn Services Vermogensbeheer B.V.	–	–	–	–	Not filed
Ranmore Fund Management Ltd	–	–	–	–	Not filed
Orion Investment Co	–	–	–	–	Not filed
Fifth Third Bancorp	–	–	–	–	Not filed
Jones Financial Companies LLLP	–	–	–	–	Not filed
Andra AP-fonden	–	–	–	–	Not filed
Arizona State Retirement System	–	–	–	–	Not filed
STRS Ohio	–	–	–	–	Not filed
Czech National Bank	–	–	–	–	Not filed
Swiss Life Asset Management Ltd	–	–	–	–	Not filed
One Capital Management, LLC	–	–	–	–	Not filed
Washington Trust Advisors, Inc.	–	–	–	–	Not filed
Kimelman & Baird, LLC	–	–	–	–	Not filed
Bellecapital International Ltd.	–	–	–	–	Not filed
Rhenman & Partners Asset Management AB	–	–	–	–	Not filed
Teacher Retirement System of Texas	–	–	–	–	Not filed
GF Fund Management Co. Ltd.	–	–	–	–	Not filed
Raiffeisen Bank International AG	–	–	–	–	Not filed
State of Michigan Retirement System	–	–	–	–	Not filed
Virginia Retirement Systems Et Al	–	–	–	–	Not filed
Capital International Sarl	–	–	–	–	Not filed
Wealth Enhancement Advisory Services, LLC	–	–	–	–	Not filed
Factory Mutual Insurance Co	–	–	–	–	Not filed
Rakuten Investment Management, Inc.	–	–	–	–	Not filed
SEB Asset Management AB	–	–	–	–	Not filed
Schroder Investment Management Group	–	–	–	–	Not filed
GW Henssler & Associates Ltd	–	–	–	–	Not filed
PensionDanmark Pensionsforsikringsaktieselskab	–	–	–	–	Not filed
IFM Investors Pty Ltd	–	–	–	–	Not filed
Marshall Wace, LLP	–	–	–	–	Not filed
Generate Investment Management Ltd	–	–	–	–	Not filed
MetLife Investment Management	–	–	–	–	Not filed
Banco Bilbao Vizcaya Argentaria, S.A.	–	–	–	–	Not filed
Walleye Capital LLC	–	–	–	–	Not filed
LMR Partners LLP	–	–	–	–	Not filed
Intech Investment Management LLC	–	–	–	–	Not filed
ADAR1 Capital Management, LLC	–	–	–	–	Not filed
Oppenheimer & Co Inc	–	–	–	–	Not filed
Commonwealth of Pennsylvania Public School Empls Retrmt Sys	–	–	–	–	Not filed
Steel Peak Wealth Management LLC	–	–	–	–	Not filed
CIBC World Markets Inc.	–	–	–	–	Not filed
Rockefeller Capital Management L.P.	–	–	–	–	Not filed
CIBC Bancorp USA Inc.	–	–	–	–	Not filed
USS Investment Management Ltd	–	–	–	–	Not filed
Woodstock Corp	–	–	–	–	Not filed
Ci Investments Inc.	–	–	–	–	Not filed
iA Global Asset Management Inc.	–	–	–	–	Not filed
Mercer Global Advisors Inc	–	–	–	–	Not filed
Schaper Benz & Wise Investment Counsel Inc	–	–	–	–	Not filed
SNS Financial Group, LLC	–	–	–	–	Not filed
Jefferies Financial Group Inc.	–	–	–	–	Not filed
China Universal Asset Management Co., Ltd.	–	–	–	–	Not filed
Beacon Pointe Advisors, LLC	–	–	–	–	Not filed
WestEnd Advisors, LLC	–	–	–	–	Not filed
Nisa Investment Advisors, LLC	–	–	–	–	Not filed
Martingale Asset Management L P	–	–	–	–	Not filed
Amalgamated Bank	–	–	–	–	Not filed
Private Advisor Group, LLC	–	–	–	–	Not filed
Varma Mutual Pension Insurance Co	–	–	–	–	Not filed
MML Investors Services, LLC	–	–	–	–	Not filed
Xponance, Inc.	–	–	–	–	Not filed
Sio Capital Management, LLC	–	–	–	–	Not filed
Evergreen Capital Management LLC	–	–	–	–	Not filed
PBU - The Pension Fund of Early Childhood & Youth Educators	–	–	–	–	Not filed
Glenmede Trust Co NA	–	–	–	–	Not filed
Macquarie Group Ltd	–	–	–	–	Not filed
Hudson Bay Capital Management LP	–	–	–	–	Not filed
State of Alaska, Department of Revenue	–	–	–	–	Not filed
Summit Financial, LLC	–	–	–	–	Not filed
Great Lakes Advisors, LLC	–	–	–	–	Not filed
F/M Investments LLC	–	–	–	–	Not filed
The PNC Financial Services Group, Inc.	–	–	–	–	Not filed
New York Life Investment Management LLC	–	–	–	–	Not filed
Prime Capital Investment Advisors, LLC	–	–	–	–	Not filed
North Point Portfolio Managers Corp	–	–	–	–	Not filed
Jump Financial, LLC	–	–	–	–	Not filed
Greenwich Wealth Management LLC	–	–	–	–	Not filed
Ethic Inc.	–	–	–	–	Not filed