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
Hickory Point Bank & Trust	61	$46.3K	0.03%	00.0%	Unchanged
Roxbury Financial LLC	9	$6.87K	0.01%	00.0%	Unchanged
BlackRock, Inc.	–	–	–	–	Not filed
Vanguard Capital Management LLC	–	–	–	–	Not filed
Dodge & Cox	–	–	–	–	Not filed
State Street Corp	–	–	–	–	Not filed
Invesco Ltd.	–	–	–	–	Not filed
JPMorgan Chase & Co	–	–	–	–	Not filed
Vanguard Portfolio Management LLC	–	–	–	–	Not filed
Franklin Resources Inc	–	–	–	–	Not filed
Geode Capital Management, LLC	–	–	–	–	Not filed
Nuveen, LLC	–	–	–	–	Not filed
Loomis Sayles & Co L P	–	–	–	–	Not filed
Price T Rowe Associates Inc	–	–	–	–	Not filed
Morgan Stanley	–	–	–	–	Not filed
Bank of America Corp	–	–	–	–	Not filed
Wellington Management Group LLP	–	–	–	–	Not filed
Norges Bank	–	–	–	–	Not filed
Goldman Sachs Group Inc	–	–	–	–	Not filed
AQR Capital Management LLC	–	–	–	–	Not filed
Amundi	–	–	–	–	Not filed
Northern Trust Corp	–	–	–	–	Not filed
Charles Schwab Investment Management Inc	–	–	–	–	Not filed
FMR LLC	–	–	–	–	Not filed
Capital World Investors	–	–	–	–	Not filed
Legal & General Group Plc	–	–	–	–	Not filed
Bank of New York Mellon Corp	–	–	–	–	Not filed
UBS Asset Management Americas Inc	–	–	–	–	Not filed
Two Sigma Investments, LP	–	–	–	–	Not filed
Vanguard Fiduciary Trust Co	–	–	–	–	Not filed
Dimensional Fund Advisors LP	–	–	–	–	Not filed
First Trust Advisors LP	–	–	–	–	Not filed
Deutsche Bank AG	–	–	–	–	Not filed
Robeco Institutional Asset Management B.V.	–	–	–	–	Not filed
Man Group plc	–	–	–	–	Not filed
SG Americas Securities, LLC	–	–	–	–	Not filed
Neuberger Berman Group LLC	–	–	–	–	Not filed
BNP Paribas Arbitrage, SA	–	–	–	–	Not filed
Arrowstreet Capital, Limited Partnership	–	–	–	–	Not filed
HSBC Holdings PLC	–	–	–	–	Not filed
Allianz Asset Management GmbH	–	–	–	–	Not filed
National Pension Service	–	–	–	–	Not filed
Pacer Advisors, Inc.	–	–	–	–	Not filed
Nordea Investment Management AB	–	–	–	–	Not filed
Alliancebernstein L.P.	–	–	–	–	Not filed
Worldquant Millennium Advisors LLC	–	–	–	–	Not filed
Citigroup Inc	–	–	–	–	Not filed
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	–	–	–	–	Not filed
UBS Group AG	–	–	–	–	Not filed
Swiss National Bank	–	–	–	–	Not filed
Sumitomo Mitsui Trust Holdings, Inc.	–	–	–	–	Not filed
FIL Ltd	–	–	–	–	Not filed
TD Asset Management Inc	–	–	–	–	Not filed
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.	–	–	–	–	Not filed
Federated Hermes, Inc.	–	–	–	–	Not filed
Jacobs Levy Equity Management, Inc	–	–	–	–	Not filed
Barclays PLC	–	–	–	–	Not filed
LSV Asset Management	–	–	–	–	Not filed
DekaBank Deutsche Girozentrale	–	–	–	–	Not filed
Caisse de Depot Et Placement du Quebec	–	–	–	–	Not filed
Assenagon Asset Management S.A.	–	–	–	–	Not filed
Russell Investments Group, Ltd.	–	–	–	–	Not filed
Ameriprise Financial Inc	–	–	–	–	Not filed
Vanguard Global Advisers, LLC	–	–	–	–	Not filed
California Public Employees Retirement System	–	–	–	–	Not filed
Qube Research & Technologies Ltd	–	–	–	–	Not filed
Canada Pension Plan Investment Board	–	–	–	–	Not filed
Squarepoint Ops LLC	–	–	–	–	Not filed
Vanguard Asset Management, Ltd	–	–	–	–	Not filed
Candriam Luxembourg S.C.A.	–	–	–	–	Not filed
McDonald Capital Investors Inc	–	–	–	–	Not filed
Swedbank AB	–	–	–	–	Not filed
Epoch Investment Partners, Inc.	–	–	–	–	Not filed
Carmignac Gestion	–	–	–	–	Not filed
Bank of Nova Scotia	–	–	–	–	Not filed
Susquehanna International Group, LLP	–	–	–	–	Not filed
KBC Group NV	–	–	–	–	Not filed
Chevy Chase Trust Holdings, Inc.	–	–	–	–	Not filed
Panagora Asset Management Inc	–	–	–	–	Not filed
Royal Bank of Canada	–	–	–	–	Not filed
Raymond James Financial Inc	–	–	–	–	Not filed
Millennium Management LLC	–	–	–	–	Not filed
Voloridge Investment Management, LLC	–	–	–	–	Not filed
Bronte Capital Management Pty Ltd.	–	–	–	–	Not filed
Rhumbline Advisers	–	–	–	–	Not filed
Acadian Asset Management LLC	–	–	–	–	Not filed
Bellevue Group AG	–	–	–	–	Not filed
California State Teachers Retirement System	–	–	–	–	Not filed
Pictet Asset Management Holding SA	–	–	–	–	Not filed
Southeastern Asset Management IncSuperinvestorSoutheastern Asset Management (Longleaf)	–	–	–	–	Not filed
Renaissance Technologies LLC	–	–	–	–	Not filed
Manufacturers Life Insurance Company, The	–	–	–	–	Not filed
Jupiter Topco LLC	–	–	–	–	Not filed
Wells Fargo & Company	–	–	–	–	Not filed
Mackenzie Financial Corp	–	–	–	–	Not filed
Thrivent Financial for Lutherans	–	–	–	–	Not filed
Prudential Financial Inc	–	–	–	–	Not filed
Natixis Advisors, L.P.	–	–	–	–	Not filed
Retirement Systems of Alabama	–	–	–	–	Not filed
Sound Shore Management Inc	–	–	–	–	Not filed