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 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.

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
Private Wealth Asset Management, LLC	–	–	–	–	Not filed
Bruce G. Allen Investments, LLC	–	–	–	–	Not filed
MCF Advisors LLC	–	–	–	–	Not filed
Cheviot Value Management, LLC	–	–	–	–	Not filed
Colonial Trust Co	–	–	–	–	Not filed
Entrust Financial LLC	–	–	–	–	Not filed
Kilter Group LLC	–	–	–	–	Not filed
Creative Financial Designs Inc	–	–	–	–	Not filed
Heritage Wealth Advisors	–	–	–	–	Not filed
Fortitude Family Office, LLC	–	–	–	–	Not filed
Caldwell Trust Co	–	–	–	–	Not filed
Strengthening Families & Communities, LLC	–	–	–	–	Not filed
Raffa Wealth Management, LLC	–	–	–	–	Not filed
BFSG, LLC	–	–	–	–	Not filed
West Paces Advisors Inc.	–	–	–	–	Not filed
PFS Partners, LLC	–	–	–	–	Not filed
Westfuller Advisors, LLC	–	–	–	–	Not filed
Acumen Wealth Advisors, LLC	–	–	–	–	Not filed
Catalyst Capital Advisors LLC	–	–	–	–	Not filed
United Community Bank	–	–	–	–	Not filed
Pinnacle Bancorp, Inc.	–	–	–	–	Not filed
Bogart Wealth, LLC	–	–	–	–	Not filed
Cedar Mountain Advisors, LLC	–	–	–	–	Not filed
Byrne Asset Management LLC	–	–	–	–	Not filed
South State Corp.	–	–	–	–	Not filed
Pacifica Partners Inc.	–	–	–	–	Not filed
Cornerstone Planning Group LLC	–	–	–	–	Not filed
Highline Wealth Partners LLC	–	–	–	–	Not filed
Toth Financial Advisory Corp	–	–	–	–	Not filed
HHM Wealth Advisors, LLC	–	–	–	–	Not filed
American National Bank	–	–	–	–	Not filed
TD Waterhouse Canada Inc.	–	–	–	–	Not filed
Prosperity Bancshares Inc	–	–	–	–	Not filed
Financial Management Professionals, Inc.	–	–	–	–	Not filed
City Holding Co	–	–	–	–	Not filed
High Note Wealth, LLC	–	–	–	–	Not filed
1015 Capital Partners, LLC	–	–	–	–	Not filed
Hanson & Doremus Investment Management	–	–	–	–	Not filed
DecisionPoint Financial, LLC	–	–	–	–	Not filed
ZRC Wealth Management, LLC	–	–	–	–	Not filed
Capital Advisor Network LLC	–	–	–	–	Not filed
J.Safra Asset Management Corp	–	–	–	–	Not filed
Golden State Wealth Management, LLC	–	–	–	–	Not filed
Joseph Group Capital Management	–	–	–	–	Not filed
Wedbush Fund Advisers, LLC	–	–	–	–	Not filed
Hazlett, Burt & Watson, Inc.	–	–	–	–	Not filed
Capital Advisors, Ltd. LLC	–	–	–	–	Not filed
Avion Wealth	–	–	–	–	Not filed
JPL Wealth Management, LLC	–	–	–	–	Not filed
Marquette Asset Management, LLC	–	–	–	–	Not filed
Jackson, Grant Investment Advisers, Inc.	–	–	–	–	Not filed
Birchbrook, Inc.	–	–	–	–	Not filed
Cornerstone Financial Management LLC	–	–	–	–	Not filed
Financial Consulate, Inc	–	–	–	–	Not filed
Tompkins Financial Corp	–	–	–	–	Not filed
Bay Harbor Wealth Management, LLC	–	–	–	–	Not filed
Bank of New Hampshire	–	–	–	–	Not filed
Hughes Financial Services, LLC	–	–	–	–	Not filed
Strategic Investment Solutions, Inc.	–	–	–	–	Not filed
Rakuten Securities, Inc.	–	–	–	–	Not filed
Fourth Dimension Wealth, LLC	–	–	–	–	Not filed
Strive Financial Group ,LLC	–	–	–	–	Not filed
DT Investment Partners, LLC	–	–	–	–	Not filed
Crewe Advisors LLC	–	–	–	–	Not filed
Decker Retirement Planning Inc.	–	–	–	–	Not filed
Wilkerson Advisory Group LLC	–	–	–	–	Not filed
Hilton Head Capital Partners, LLC	–	–	–	–	Not filed
CKW Financial Group	–	–	–	–	Not filed
Kerr Financial Planning Corp	–	–	–	–	Not filed
S&T Bank	–	–	–	–	Not filed
Buck Wealth Strategies, LLC	–	–	–	–	Not filed
Nemes Rush Group LLC	–	–	–	–	Not filed
Burk Holdings LLC	–	–	–	–	Not filed
Hollencrest Capital Management	–	–	–	–	Not filed
Trust Co of Toledo NA	–	–	–	–	Not filed
Farmers & Merchants Investments Inc	–	–	–	–	Not filed
BOK Financial Private Wealth, Inc.	–	–	–	–	Not filed
North Star Investment Management Corp.	–	–	–	–	Not filed
Moisand Fitzgerald Tamayo, LLC	–	–	–	–	Not filed
Creative Capital Management Investments LLC	–	–	–	–	Not filed
Marshall Investment Management, LLC	–	–	–	–	Not filed
LRI Investments, LLC	–	–	–	–	Not filed
HFM Investment Advisors, LLC	–	–	–	–	Not filed
United Financial Planning Group LLC	–	–	–	–	Not filed
CBIZ Investment Advisory Services, LLC	–	–	–	–	Not filed
Armstrong Advisory Group, Inc	–	–	–	–	Not filed
DiNuzzo Private Wealth, Inc.	–	–	–	–	Not filed
Riverview Trust Co	–	–	–	–	Not filed
Kozak & Associates, Inc.	–	–	–	–	Not filed
Signature Equity Partners, LLC	–	–	–	–	Not filed
First Command Advisory Services, Inc.	–	–	–	–	Not filed
Elevated Capital Advisors, LLC	–	–	–	–	Not filed
Activest Wealth Management	–	–	–	–	Not filed
Cape Investment Advisory, Inc.	–	–	–	–	Not filed
Aspect Partners, LLC	–	–	–	–	Not filed
IMG Wealth Management, Inc.	–	–	–	–	Not filed
Principia Wealth Advisory, LLC	–	–	–	–	Not filed
Rialto Wealth Management, LLC	–	–	–	–	Not filed
NBH Bank	–	–	–	–	Not filed
TIAA Wealth Investment Management LLC	–	–	–	–	Not filed