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
Gen-Wealth Partners Inc	–	–	–	–	Not filed
Parkside Financial Bank & Trust	–	–	–	–	Not filed
Cary Street Partners Financial LLC	–	–	–	–	Not filed
Hara Capital LLC	–	–	–	–	Not filed
GGM Financials LLC	–	–	–	–	Not filed
Twin Lakes Capital Management, LLC	–	–	–	–	Not filed
NBT Bank N A	–	–	–	–	Not filed
TD Private Client Wealth LLC	–	–	–	–	Not filed
VSM Wealth Advisory, LLC	–	–	–	–	Not filed
Wealth Enhancement Trust Services, Inc.	–	–	–	–	Not filed
Basecamp Wealth Advisors LLC	–	–	–	–	Not filed
CVA Family Office, LLC	–	–	–	–	Not filed
Zions Bancorporation, National Association	–	–	–	–	Not filed
Montag A & Associates Inc	–	–	–	–	Not filed
Geneos Wealth Management Inc.	–	–	–	–	Not filed
GW&K Investment Management, LLC	–	–	–	–	Not filed
Cohen & Steers, Inc.	–	–	–	–	Not filed
Covestor Ltd	–	–	–	–	Not filed
NVWM, LLC	–	–	–	–	Not filed
Ameritas Advisory Services, LLC	–	–	–	–	Not filed
State of Wyoming	–	–	–	–	Not filed
Owl Creek Wealth Partners LLC	–	–	–	–	Not filed
Glen Eagle Advisors, LLC	–	–	–	–	Not filed
Ameriflex Group, Inc.	–	–	–	–	Not filed
Bryn Mawr Trust Co	–	–	–	–	Not filed
HM Payson & Co	–	–	–	–	Not filed
Ogorek Anthony Joseph	–	–	–	–	Not filed
Mark Sheptoff Financial Planning, LLC	–	–	–	–	Not filed
WS Portfolio Advisory, LLC	–	–	–	–	Not filed
Quintet Private Bank (Europe) S.A.	–	–	–	–	Not filed
Cassaday & Co Wealth Management LLC	–	–	–	–	Not filed
Truvestments Capital LLC	–	–	–	–	Not filed
MidFirst Bank	–	–	–	–	Not filed
Sittner & Nelson, LLC	–	–	–	–	Not filed
Community Bank, N.A.	–	–	–	–	Not filed
TFC Financial Management	–	–	–	–	Not filed
Itau Unibanco Holding S.A.	–	–	–	–	Not filed
Lodestone Wealth Management LLC	–	–	–	–	Not filed
St. Johns Investment Management Company, LLC	–	–	–	–	Not filed
Timbuktu Capital Management, LLC	–	–	–	–	Not filed
Brown, Lisle/Cummings, Inc.	–	–	–	–	Not filed
Sankala Group LLC	–	–	–	–	Not filed
Game Plan Financial Advisors, LLC	–	–	–	–	Not filed
Index Technologies Group LLC	–	–	–	–	Not filed
TSFG, LLC	–	–	–	–	Not filed
Fedenia Advisers LLC	–	–	–	–	Not filed
Whittier Trust Co of Nevada Inc	–	–	–	–	Not filed
Continuum Advisory, LLC	–	–	–	–	Not filed
Ares Financial Consulting, LLC	–	–	–	–	Not filed
Toews Corp	–	–	–	–	Not filed
Graney & King, LLC	–	–	–	–	Not filed
Solstein Capital, LLC	–	–	–	–	Not filed
Financial Network Wealth Advisors LLC	–	–	–	–	Not filed
Compass Financial Management LLC	–	–	–	–	Not filed
Maryland Capital Advisors Inc.	–	–	–	–	Not filed
Aberdeen Wealth Management LLC	–	–	–	–	Not filed
UMA Financial Services, Inc.	–	–	–	–	Not filed
Synergy Investment Management, LLC	–	–	–	–	Not filed
Newbridge Financial Services Group, Inc.	–	–	–	–	Not filed
Prestige Wealth Management Group LLC	–	–	–	–	Not filed
Ancora Advisors, LLC	–	–	–	–	Not filed
Colonial Trust Advisors	–	–	–	–	Not filed
MV Capital Management, Inc.	–	–	–	–	Not filed
Private Wealth Management Group, LLC	–	–	–	–	Not filed
Rosenberg Matthew Hamilton	–	–	–	–	Not filed
University of Texas/Texas Am Investment Managment Co	–	–	–	–	Not filed
Eastern Bank	–	–	–	–	Not filed
SHP Wealth Management	–	–	–	–	Not filed
Oakworth Capital, Inc.	–	–	–	–	Not filed
Allied Private Wealth LLC	–	–	–	–	Not filed
Raleigh Capital Management Inc.	–	–	–	–	Not filed
Strategic Wealth Partners, Ltd.	–	–	–	–	Not filed
Basepoint Wealth LLC	–	–	–	–	Not filed
Abound Wealth Management	–	–	–	–	Not filed
Transamerica Financial Advisors, Inc.	–	–	–	–	Not filed
IFG Advisory, LLC	–	–	–	–	Not filed
FNY Investment Advisers, LLC	–	–	–	–	Not filed
Alphadyne Asset Management LP	–	–	–	–	Not filed
Mosley Wealth Management	–	–	–	–	Not filed
Manchester Capital Management LLC	–	–	–	–	Not filed
SJS Investment Consulting Inc.	–	–	–	–	Not filed
Trust Co of Vermont	–	–	–	–	Not filed
Action Point Financial Planning, LLC	–	–	–	–	Not filed
Mowery & Schoenfeld Wealth Management, LLC	–	–	–	–	Not filed
Kemnay Advisory Services Inc.	–	–	–	–	Not filed
Costello Asset Management, INC	–	–	–	–	Not filed
Salomon & Ludwin, LLC	–	–	–	–	Not filed
Birchwood Financial Partners, Inc.	–	–	–	–	Not filed
JFS Wealth Advisors, LLC	–	–	–	–	Not filed
Consultiva Wealth Management, Corp.	–	–	–	–	Not filed
Silver Grove Financial Group, Inc.	–	–	–	–	Not filed
LifeSteps Financial, Inc.	–	–	–	–	Not filed
Spire Wealth Management	–	–	–	–	Not filed
Ameliora Wealth Management Ltd.	–	–	–	–	Not filed
GHP Investment Advisors, Inc.	–	–	–	–	Not filed
IAG Wealth Partners, LLC	–	–	–	–	Not filed
WPG Advisers, LLC	–	–	–	–	Not filed
Bell Investment Advisors, Inc	–	–	–	–	Not filed
Dogwood Wealth Management LLC	–	–	–	–	Not filed
Allianz SE	–	–	–	–	Not filed