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, Q4 2025

Institutional positions in Regeneron Pharmaceuticals, Inc. as of Dec 31, 2025. 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

Institutional holders: 1,387; +167 vs. Q3 2025
Shares held: 91.6M; +4.76M (+5.5%) vs. Q3 2025
Total value: $70.7B; +$21.9B (+44.9%) vs. Q3 2025
New holders: 273; 502 more added
Sold out: 106; 457 more reduced

23 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: 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 holdersQ4 2025: 1,387 institutions

Value heldQ4 2025: $70.7B

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, Q4 2025

Shares, value and share of portfolio for each institution holding Regeneron Pharmaceuticals, Inc.; share changes are against Q3 2025.

Institutions holding REGN in Q4 2025
Institution	Shares	Value	% of portfolio	Change in shares	Action
Artia Global Partners LP	0	$0	0.00%	−10,671−100.0%	Sold out
Y-Intercept (Hong Kong) Ltd	0	$0	0.00%	−10,318−100.0%	Sold out
Oddo BHF Asset Management SAS	0	$0	0.00%	−10,265−100.0%	Sold out
Virtu Financial LLC	0	$0	0.00%	−9,863−100.0%	Sold out
TB Alternative Assets Ltd.	0	$0	0.00%	−8,652−100.0%	Sold out
Prevail Innovative Wealth Advisors, LLC	0	$0	0.00%	−7,628−100.0%	Sold out
Superstring Capital Management LP	0	$0	0.00%	−6,401−100.0%	Sold out
Dark Forest Capital Management LP	0	$0	0.00%	−6,069−100.0%	Sold out
Aigen Investment Management, LP	0	$0	0.00%	−5,535−100.0%	Sold out
Fox Run Management, L.L.C.	0	$0	0.00%	−4,413−100.0%	Sold out
Boothbay Fund Management, LLC	0	$0	0.00%	−4,240−100.0%	Sold out
Headlands Technologies LLC	0	$0	0.00%	−4,014−100.0%	Sold out
Gsa Capital Partners LLP	0	$0	0.00%	−3,440−100.0%	Sold out
Scientech Research LLC	0	$0	0.00%	−3,200−100.0%	Sold out
Brighton Jones LLC	0	$0	0.00%	−2,906−100.0%	Sold out
Schonfeld Strategic Advisors LLC	0	$0	0.00%	−2,634−100.0%	Sold out
APG Asset Management US Inc.	0	$0	0.00%	−2,240−100.0%	Sold out
Stoneridge Investment Partners LLC	0	$0	0.00%	−2,360−100.0%	Sold out
J. Safra Sarasin Holding AG	0	$0	0.00%	−2,303−100.0%	Sold out
Paragon Capital Management Inc	0	$0	0.00%	−2,159−100.0%	Sold out
Skylands Capital, LLC	0	$0	0.00%	−2,065−100.0%	Sold out
Abc Arbitrage SA	0	$0	0.00%	−1,970−100.0%	Sold out
Brookwood Investment Group LLC	0	$0	0.00%	−1,945−100.0%	Sold out
NorthRock Partners, LLC	0	$0	0.00%	−1,943−100.0%	Sold out
Amica Mutual Insurance Co	0	$0	0.00%	−1,830−100.0%	Sold out
Stevens Capital Management LP	0	$0	0.00%	−1,409−100.0%	Sold out
TownSquare Capital, LLC	0	$0	0.00%	−1,345−100.0%	Sold out
Magnetar Financial LLC	0	$0	0.00%	−1,307−100.0%	Sold out
Humankind Investments LLC	0	$0	0.00%	−1,275−100.0%	Sold out
Axq Capital, LP	0	$0	0.00%	−1,223−100.0%	Sold out
Convergence Investment Partners, LLC	0	$0	0.00%	−1,199−100.0%	Sold out
Farringdon Capital, Ltd.	0	$0	0.00%	−1,061−100.0%	Sold out
Ground Swell Capital, LLC	0	$0	0.00%	−1,021−100.0%	Sold out
Semanteon Capital Management, LP	0	$0	0.00%	−983−100.0%	Sold out
SummitTX Capital, L.P.	0	$0	0.00%	−972−100.0%	Sold out
Pitcairn Co	0	$0	0.00%	−968−100.0%	Sold out
Caitong International Asset Management Co., Ltd	0	$0	0.00%	−968−100.0%	Sold out
J.W. Cole Advisors, Inc.	0	$0	0.00%	−911−100.0%	Sold out
Meridian Investment Counsel Inc.	0	$0	0.00%	−854−100.0%	Sold out
Covalent Partners LLC	0	$0	0.00%	−800−100.0%	Sold out
Asahi Life Asset Management Co., Ltd.	0	$0	0.00%	−782−100.0%	Sold out
Integrated Investment Consultants, LLC	0	$0	0.00%	−756−100.0%	Sold out
Lombard Odier Asset Management (USA) Corp	0	$0	0.00%	−746−100.0%	Sold out
Badgley Phelps Wealth Managers, LLC	0	$0	0.00%	−725−100.0%	Sold out
Graham Capital Management, L.P.	0	$0	0.00%	−712−100.0%	Sold out
EntryPoint Capital, LLC	0	$0	0.00%	−683−100.0%	Sold out
Quarry LP	0	$0	0.00%	−657−100.0%	Sold out
Net Worth Advisory Group	0	$0	0.00%	−648−100.0%	Sold out
Forefront Wealth Partners, LLC	0	$0	0.00%	−579−100.0%	Sold out
FORA Capital, LLC	0	$0	0.00%	−564−100.0%	Sold out
Kesler, Norman & Wride, LLC	0	$0	0.00%	−443−100.0%	Sold out
CTC Alternative Strategies, Ltd.	0	$0	0.00%	−546−100.0%	Sold out
Davy Global Fund Management Ltd	0	$0	0.00%	−515−100.0%	Sold out
Alphadyne Asset Management LP	0	$0	0.00%	−508−100.0%	Sold out
Virtue Capital Management, LLC	0	$0	0.00%	−501−100.0%	Sold out
NJ State Employees Deferred Compensation Plan	0	$0	0.00%	−500−100.0%	Sold out
Two Sigma Securities, LLC	0	$0	0.00%	−445−100.0%	Sold out
Diametric Capital, LP	0	$0	0.00%	−437−100.0%	Sold out
T. Rowe Price Investment Management, Inc.	0	$0	0.00%	−435−100.0%	Sold out
Quantbot Technologies LP	0	$0	0.00%	−405−100.0%	Sold out
Patton Fund Management, Inc.	0	$0	0.00%	−400−100.0%	Sold out
Fiducient Advisors LLC	0	$0	0.00%	−390−100.0%	Sold out
Inceptionr LLC	0	$0	0.00%	−390−100.0%	Sold out
Robinson Smith Wealth Advisors LLC	0	$0	0.00%	−390−100.0%	Sold out
Weaver Capital Management LLC	0	$0	0.00%	−387−100.0%	Sold out
Fieldview Capital Management, LLC	0	$0	0.00%	−365−100.0%	Sold out
State of Wyoming	0	$0	0.00%	−243−100.0%	Sold out
Heartwood Wealth Advisors LLC	0	$0	0.00%	−236−100.0%	Sold out
Capula Management Ltd	0	$0	0.00%	−181−100.0%	Sold out
Grey Fox Wealth Advisors, LLC	0	$0	0.00%	−165−100.0%	Sold out
Arlington Trust Co LLC	0	$0	0.00%	−140−100.0%	Sold out
Virtus ETF Advisers LLC	0	$0	0.00%	−100−100.0%	Sold out
Rise Advisors, LLC	0	$0	0.00%	−99−100.0%	Sold out
Ameritas Advisory Services, LLC	0	$0	0.00%	−54−100.0%	Sold out
Crowley Wealth Management, Inc.	0	$0	0.00%	−50−100.0%	Sold out
New Age Alpha Advisors, LLC	0	$0	0.00%	−32−100.0%	Sold out
Tortoise Investment Management, LLC	0	$0	0.00%	−29−100.0%	Sold out
Hazlett, Burt & Watson, Inc.	0	$0	0.00%	−18−100.0%	Sold out
TruNorth Capital Management, LLC	0	$0	0.00%	−13−100.0%	Sold out
JPL Wealth Management, LLC	0	$0	0.00%	−12−100.0%	Sold out
Prudent Man Investment Management, Inc.	0	$0	0.00%	−5−100.0%	Sold out
Halbert Hargrove Global Advisors, LLC	0	$0	0.00%	−4−100.0%	Sold out
Atlantic Trust, LLC	0	$0	0.00%	−4−100.0%	Sold out
Core Alternative Capital	0	$0	0.00%	−4−100.0%	Sold out
Cloud Capital Management, LLC	0	$0	0.00%	−5−100.0%	Sold out
Longfellow Investment Management Co LLC	0	$0	0.00%	−3−100.0%	Sold out
MRP Capital Investments, LLC	0	$0	0.00%	−3−100.0%	Sold out
Tradewinds Capital Management, LLC	0	$0	0.00%	−2−100.0%	Sold out
Hurley Capital, LLC	0	$0	0.00%	−2−100.0%	Sold out
Cherry Tree Wealth Management, LLC	0	$0	0.00%	−2−100.0%	Sold out
Palisade Asset Management, LLC	0	$0	0.00%	−1−100.0%	Sold out
Avalon Trust Co	0	$0	0.00%	−1−100.0%	Sold out
Y.D. More Investments Ltd	0	$0	0.00%	−28−100.0%	Sold out
Cubist Systematic Strategies, LLC	–	–	–	–	Not filed
AXA Investment Managers S.A.	–	–	–	–	Not filed
Point72 Europe (London) LLP	–	–	–	–	Not filed
Wolverine Trading, LLC	–	–	–	–	Not filed
CIBC Bancorp USA Inc.	–	–	–	–	Not filed
Glenmede Investment Management, LP	–	–	–	–	Not filed
Point72 Hong Kong Ltd	–	–	–	–	Not filed