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: 6; 0 vs. Q2 2026
Shares held: 1.14K; +306 (+36.8%) vs. Q2 2026
Total value: $863.1K; +$344.3K (+66.4%) vs. Q2 2026
New holders: 0; 2 more added
Sold out: 0; 0 more reduced

1,336 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
Keudell/Morrison Wealth Management	–	–	–	–	Not filed
Sovran Advisors, LLC	–	–	–	–	Not filed
Sym Financial Corp	–	–	–	–	Not filed
Edmond de Rothschild Holding S.A.	–	–	–	–	Not filed
QTR Family Wealth, LLC	–	–	–	–	Not filed
Change Path, LLC	–	–	–	–	Not filed
Frank, Rimerman Advisors LLC	–	–	–	–	Not filed
Sentinus, LLC	–	–	–	–	Not filed
YHB Investment Advisors, Inc.	–	–	–	–	Not filed
Ellevest, Inc.	–	–	–	–	Not filed
Providence First Trust Co	–	–	–	–	Not filed
Union Bancaire Privee, UBP SA	–	–	–	–	Not filed
Chicago Trust Co NA	–	–	–	–	Not filed
Pure Financial Advisors, Inc.	–	–	–	–	Not filed
Ramiah Investment Group	–	–	–	–	Not filed
IHT Wealth Management, LLC	–	–	–	–	Not filed
Abner Herrman & Brock LLC	–	–	–	–	Not filed
D.A. Davidson & Co.	–	–	–	–	Not filed
AXA S.A.	–	–	–	–	Not filed
Compagnie Lombard Odier SCmA	–	–	–	–	Not filed
Hudson Value Partners, LLC	–	–	–	–	Not filed
First Western Trust Bank	–	–	–	–	Not filed
Davenport & Co LLC	–	–	–	–	Not filed
Everhart Financial Group, Inc.	–	–	–	–	Not filed
Pinnacle Wealth Planning Services, Inc.	–	–	–	–	Not filed
17 Capital Partners, LLC	–	–	–	–	Not filed
Legacy Capital Group California, Inc.	–	–	–	–	Not filed
Lebenthal Global Advisors, LLC	–	–	–	–	Not filed
Tred Avon Family Wealth, LLC	–	–	–	–	Not filed
Capital Investment Advisors, LLC	–	–	–	–	Not filed
Readystate Asset Management LP	–	–	–	–	Not filed
Equitable Trust Co	–	–	–	–	Not filed
Integrity Alliance, LLC.	–	–	–	–	Not filed
K.J. Harrison & Partners Inc	–	–	–	–	Not filed
Investment House LLC	–	–	–	–	Not filed
Childress Capital Advisors, LLC	–	–	–	–	Not filed
BIP Wealth, LLC	–	–	–	–	Not filed
Mutual Advisors, LLC	–	–	–	–	Not filed
71 West Capital Partners	–	–	–	–	Not filed
Groupe la Francaise	–	–	–	–	Not filed
Dorsey & Whitney Trust CO LLC	–	–	–	–	Not filed
Premier Path Wealth Partners, LLC	–	–	–	–	Not filed
Commerzbank Aktiengesellschaft	–	–	–	–	Not filed
Claro Advisors LLC	–	–	–	–	Not filed
Sowell Financial Services LLC	–	–	–	–	Not filed
Moneta Group Investment Advisors LLC	–	–	–	–	Not filed
Seelaus Asset Management LLC	–	–	–	–	Not filed
Westbourne Investments, Inc.	–	–	–	–	Not filed
Dempze Nancy E	–	–	–	–	Not filed
Flower City Capital	–	–	–	–	Not filed
Arista Wealth Management, LLC	–	–	–	–	Not filed
Alpine Fox Capital LLC	–	–	–	–	Not filed
Telos Capital Management, Inc.	–	–	–	–	Not filed
Paces Ferry Wealth Advisors, LLC	–	–	–	–	Not filed
Uhlmann Price Securities, LLC	–	–	–	–	Not filed
Resonant Capital Advisors, LLC	–	–	–	–	Not filed
Adviser Investments LLC	–	–	–	–	Not filed
Invera Wealth Advisors, LLC	–	–	–	–	Not filed
Old National Bancorp	–	–	–	–	Not filed
Plimoth Trust Co LLC	–	–	–	–	Not filed
Abundance Wealth Counselors	–	–	–	–	Not filed
Investment Research Partners LLC	–	–	–	–	Not filed
Greenbush Financial Group, LLC	–	–	–	–	Not filed
OneAscent Family Office, LLC	–	–	–	–	Not filed
Greykasell Wealth Strategies, Inc.	–	–	–	–	Not filed
American Alpha Advisors, LLC	–	–	–	–	Not filed
SCS Capital Management LLC	–	–	–	–	Not filed
Avail Investment Partners, LLC	–	–	–	–	Not filed
Johnson Investment Counsel Inc	–	–	–	–	Not filed
Aspiriant, LLC	–	–	–	–	Not filed
Landscape Capital Management, L.L.C.	–	–	–	–	Not filed
Wealth Alliance	–	–	–	–	Not filed
Checchi Capital Advisers, LLC	–	–	–	–	Not filed
Bingham Private Wealth, LLC	–	–	–	–	Not filed
SevenBridge Financial Group, LLC	–	–	–	–	Not filed
Hantz Financial Services, Inc.	–	–	–	–	Not filed
Bradley Foster & Sargent Inc	–	–	–	–	Not filed
Colonial River Wealth Management, LLC	–	–	–	–	Not filed
Everpar Advisors LLC	–	–	–	–	Not filed
Alliance Wealth Advisors, LLC	–	–	–	–	Not filed
Aviso Wealth Management	–	–	–	–	Not filed
Chesley Taft & Associates LLC	–	–	–	–	Not filed
NBC Securities, Inc.	–	–	–	–	Not filed
Apriem Advisors	–	–	–	–	Not filed
Conning Inc.	–	–	–	–	Not filed
Great Diamond Partners, LLC	–	–	–	–	Not filed
Howe & Rusling Inc	–	–	–	–	Not filed
Guardian Wealth Advisors, LLC	–	–	–	–	Not filed
1248 Management, LLC	–	–	–	–	Not filed
RMB Capital Management, LLC	–	–	–	–	Not filed
Camden Capital, LLC	–	–	–	–	Not filed
New World Advisors LLC	–	–	–	–	Not filed
McIntyre Freedman & Flynn Investment Advisers Inc	–	–	–	–	Not filed
National Asset Management, Inc.	–	–	–	–	Not filed
Elwood & Goetz Wealth Advisory Group, LLC	–	–	–	–	Not filed
Meiji Yasuda Asset Management Co Ltd.	–	–	–	–	Not filed
PDS Planning, Inc	–	–	–	–	Not filed
Forefront Analytics, LLC	–	–	–	–	Not filed
Triumph Capital Management	–	–	–	–	Not filed
Cim Investment Mangement Inc	–	–	–	–	Not filed