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
Kendall Capital Management	–	–	–	–	Not filed
Savvy Advisors, Inc.	–	–	–	–	Not filed
Sectoral Asset Management Inc	–	–	–	–	Not filed
Fifth Third Wealth Advisors LLC	–	–	–	–	Not filed
Buckingham Strategic Partners	–	–	–	–	Not filed
Vega Investment Solutions	–	–	–	–	Not filed
Portside Wealth Group, LLC	–	–	–	–	Not filed
FORA Capital, LLC	–	–	–	–	Not filed
Vise Technologies, Inc.	–	–	–	–	Not filed
Keybank National Association	–	–	–	–	Not filed
Harrell Investment Partners, LLC	–	–	–	–	Not filed
Fulton Bank, N.A.	–	–	–	–	Not filed
IMA Wealth, Inc.	–	–	–	–	Not filed
TCG Advisory Services, LLC	–	–	–	–	Not filed
GAMMA Investing LLC	–	–	–	–	Not filed
Prentiss Smith & Co Inc	–	–	–	–	Not filed
Vestcor Inc	–	–	–	–	Not filed
Grove Bank & Trust	–	–	–	–	Not filed
Brevan Howard Capital Management LP	–	–	–	–	Not filed
AMG National Trust Bank	–	–	–	–	Not filed
AlphaGrep UK Ltd	–	–	–	–	Not filed
Empire Financial Management Company, LLC	–	–	–	–	Not filed
Texas Yale Capital Corp.	–	–	–	–	Not filed
Pallas Capital Advisors LLC	–	–	–	–	Not filed
Westwood Holdings Group Inc.	–	–	–	–	Not filed
Anchor Capital Advisors LLC	–	–	–	–	Not filed
Krilogy Financial LLC	–	–	–	–	Not filed
Gabelli Funds LLC	–	–	–	–	Not filed
AlTi Global, Inc.	–	–	–	–	Not filed
Blueshift Asset Management, LLC	–	–	–	–	Not filed
Alps Advisors Inc	–	–	–	–	Not filed
EFG International AG	–	–	–	–	Not filed
CSS LLC	–	–	–	–	Not filed
Rehmann Capital Advisory Group	–	–	–	–	Not filed
GeoWealth Management, LLC	–	–	–	–	Not filed
Winton Group Ltd	–	–	–	–	Not filed
Ritholtz Wealth Management	–	–	–	–	Not filed
Beech Hill Advisors, Inc.	–	–	–	–	Not filed
Signaturefd, LLC	–	–	–	–	Not filed
Argent Trust Co	–	–	–	–	Not filed
Equitable Holdings, Inc.	–	–	–	–	Not filed
Capstone Wealth Management Group, LLC	–	–	–	–	Not filed
Oak Grove Capital LLC	–	–	–	–	Not filed
Catalytic Wealth RIA, LLC	–	–	–	–	Not filed
ICICI Prudential Asset Management Co Ltd	–	–	–	–	Not filed
Paradigm Asset Management Co LLC	–	–	–	–	Not filed
TCW Group Inc	–	–	–	–	Not filed
Personal Cfo Solutions, LLC	–	–	–	–	Not filed
Nwam LLC	–	–	–	–	Not filed
Jacobi Capital Management LLC	–	–	–	–	Not filed
Tower Research Capital LLC (TRC)	–	–	–	–	Not filed
Norden Group LLC	–	–	–	–	Not filed
CWA Asset Management Group, LLC	–	–	–	–	Not filed
Coastal Bridge Advisors, LLC	–	–	–	–	Not filed
Warner Group LLC	–	–	–	–	Not filed
One Wealth Capital Management, LLC	–	–	–	–	Not filed
Bull Harbor Capital LLC	–	–	–	–	Not filed
Brinker Capital Investments, LLC	–	–	–	–	Not filed
Mesirow Financial Investment Management, Inc.	–	–	–	–	Not filed
denkapparat Operations GmbH	–	–	–	–	Not filed
Global Retirement Partners, LLC	–	–	–	–	Not filed
PeakShares LLC	–	–	–	–	Not filed
Bessemer Group Inc	–	–	–	–	Not filed
Park Avenue Securities LLC	–	–	–	–	Not filed
Tiaa-Cref Individual & Institutional Services, LLC	–	–	–	–	Not filed
Waddell & Associates, LLC	–	–	–	–	Not filed
Crossmark Global Holdings, Inc.	–	–	–	–	Not filed
Moss Adams Wealth Advisors LLC	–	–	–	–	Not filed
Acorn Financial Advisory Services Inc	–	–	–	–	Not filed
Fairfield, Bush & Co.	–	–	–	–	Not filed
Baader Bank INC	–	–	–	–	Not filed
Empirical Finance, LLC	–	–	–	–	Not filed
Opal Capital LLC	–	–	–	–	Not filed
Nilsine Partners, LLC	–	–	–	–	Not filed
Dakota Wealth Management	–	–	–	–	Not filed
Quantbot Technologies LP	–	–	–	–	Not filed
Atlantic Edge Private Wealth Management, LLC	–	–	–	–	Not filed
Central Trust Co	–	–	–	–	Not filed
Legacy Financial Advisors, Inc.	–	–	–	–	Not filed
Analyst IMS Investment Management Services Ltd.	–	–	–	–	Not filed
Delta Financial Advisors LLC	–	–	–	–	Not filed
Central Pacific Bank - Trust Division	–	–	–	–	Not filed
Baker Tilly Wealth Management, LLC	–	–	–	–	Not filed
Generali Investments Towarzystwo Funduszy Inwestycyjnych	–	–	–	–	Not filed
Wedmont Private Capital	–	–	–	–	Not filed
Coldstream Capital Management Inc	–	–	–	–	Not filed
Ashton Thomas Securities, LLC	–	–	–	–	Not filed
Nelson, Van Denburg & Campbell Wealth Management Group, LLC	–	–	–	–	Not filed
Mission Wealth Management, LP	–	–	–	–	Not filed
Copeland Capital Management, LLC	–	–	–	–	Not filed
Greenleaf Trust	–	–	–	–	Not filed
IFP Advisors, Inc	–	–	–	–	Not filed
Caerus Investment Advisors, LLC	–	–	–	–	Not filed
Bokf, NA	–	–	–	–	Not filed
Blue Chip Partners, Inc.	–	–	–	–	Not filed
Magnetar Financial LLC	–	–	–	–	Not filed
Keynote Financial Services LLC	–	–	–	–	Not filed
Employees Retirement System of Texas	–	–	–	–	Not filed
Meeder Advisory Services, Inc.	–	–	–	–	Not filed
Everence Capital Management Inc	–	–	–	–	Not filed