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, Q1 2023

Institutional positions in Regeneron Pharmaceuticals, Inc. as of Mar 31, 2023. 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: 1,196; +50 vs. Q4 2022
Shares held: 99.1M; +5.03M (+5.3%) vs. Q4 2022
Total value: $76.1B; +$9.34B (+14.0%) vs. Q4 2022
New holders: 131; 442 more added
Sold out: 81; 422 more reduced

15 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2022: 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 holdersQ1 2023: 1,196 institutions

Value heldQ1 2023: $76.1B

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, Q1 2023

Shares, value and share of portfolio for each institution holding Regeneron Pharmaceuticals, Inc.; share changes are against Q4 2022.

Institutions holding REGN in Q1 2023
Institution	Shares	Value	% of portfolio	Change in shares	Action
Balyasny Asset Management LLC	0	$0	0.00%	−33,457−100.0%	Sold out
Markel Group Inc.SuperinvestorMarkel Group	0	$0	0.00%	−30,500−100.0%	Sold out
Hudson Bay Capital Management LP	0	$0	0.00%	−13,400−100.0%	Sold out
Ergoteles LLC	0	$0	0.00%	−10,962−100.0%	Sold out
LMR Partners LLP	0	$0	0.00%	−9,766−100.0%	Sold out
Steel Peak Wealth Management LLC	0	$0	0.00%	−7,346−100.0%	Sold out
Jag Capital Management, LLC	0	$0	0.00%	−6,424−100.0%	Sold out
Clark Estates Inc	0	$0	0.00%	−6,400−100.0%	Sold out
Arabesque Asset Management Ltd	0	$0	0.00%	−5,199−100.0%	Sold out
John G Ullman & Associates Inc	0	$0	0.00%	−4,260−100.0%	Sold out
Hennessy Advisors Inc	0	$0	0.00%	−4,100−100.0%	Sold out
Headlands Technologies LLC	0	$0	0.00%	−3,235−100.0%	Sold out
Premier Asset Management LLC	0	$0	0.00%	−2,023−100.0%	Sold out
Gardner Lewis Asset Management L P	0	$0	0.00%	−1,949−100.0%	Sold out
Arrowstreet Capital, Limited Partnership	0	$0	0.00%	−1,661−100.0%	Sold out
Estate Counselors, LLC	0	$0	0.00%	−1,590−100.0%	Sold out
Investment Management Corp of Ontario	0	$0	0.00%	−1,434−100.0%	Sold out
AdvisorShares Investments LLC	0	$0	0.00%	−1,288−100.0%	Sold out
Connectus Wealth, LLC	0	$0	0.00%	−1,195−100.0%	Sold out
Park Avenue Securities LLC	0	$0	0.00%	−1,111−100.0%	Sold out
Y-Intercept (Hong Kong) Ltd	0	$0	0.00%	−1,107−100.0%	Sold out
Centiva Capital, LP	0	$0	0.00%	−1,016−100.0%	Sold out
Campbell & CO Investment Adviser LLC	0	$0	0.00%	−863−100.0%	Sold out
Fiera Capital Corp	0	$0	0.00%	−846−100.0%	Sold out
Fortem Financial Group, LLC	0	$0	0.00%	−819−100.0%	Sold out
Resurgent Financial Advisors LLC	0	$0	0.00%	−665−100.0%	Sold out
MQS Management LLC	0	$0	0.00%	−631−100.0%	Sold out
TKG Advisors, LLC	0	$0	0.00%	−605−100.0%	Sold out
Prospera Financial Services Inc	0	$0	0.00%	−600−100.0%	Sold out
Oversea-Chinese Banking CORP Ltd	0	$0	0.00%	−593−100.0%	Sold out
Money Concepts Capital Corp	0	$0	0.00%	−568−100.0%	Sold out
G&S Capital LLC	0	$0	0.00%	−562−100.0%	Sold out
Ascendant Capital Management, LLC	0	$0	0.00%	−500−100.0%	Sold out
Sherbrooke Park Advisers LLC	0	$0	0.00%	−500−100.0%	Sold out
Kiwi Wealth Investments Limited Partnership	0	$0	0.00%	−497−100.0%	Sold out
BBR Partners, LLC	0	$0	0.00%	−450−100.0%	Sold out
Agf Management Ltd	0	$0	0.00%	−437−100.0%	Sold out
Aveo Capital Partners, LLC	0	$0	0.00%	−436−100.0%	Sold out
Capital Impact Advisors, LLC	0	$0	0.00%	−430−100.0%	Sold out
Transcend Wealth Collective, LLC	0	$0	0.00%	−418−100.0%	Sold out
Precision Wealth Strategies, LLC	0	$0	0.00%	−395−100.0%	Sold out
Scotia Capital Inc.	0	$0	0.00%	−383−100.0%	Sold out
Gsa Capital Partners LLP	0	$0	0.00%	−359−100.0%	Sold out
Robertson Stephens Wealth Management, LLC	0	$0	0.00%	−356−100.0%	Sold out
First Citizens Bank & Trust Co	0	$0	0.00%	−333−100.0%	Sold out
Childress Capital Advisors, LLC	0	$0	0.00%	−332−100.0%	Sold out
Blueshift Asset Management, LLC	0	$0	0.00%	−330−100.0%	Sold out
Marex Group plc	0	$0	0.00%	−330−100.0%	Sold out
SYSTM Wealth Solutions LLC	0	$0	0.00%	−322−100.0%	Sold out
Virtu Financial LLC	0	$0	0.00%	−315−100.0%	Sold out
Wall Street Access Asset Management, LLC	0	$0	0.00%	−300−100.0%	Sold out
Edgestream Partners, L.P.	0	$0	0.00%	−295−100.0%	Sold out
Range Financial Group LLC	0	$0	0.00%	−287−100.0%	Sold out
Arete Wealth Advisors, LLC	0	$0	0.00%	−279−100.0%	Sold out
Anfield Capital Management, LLC	0	$0	0.00%	−228−100.0%	Sold out
Zullo Investment Group, Inc.	0	$0	0.00%	−121−100.0%	Sold out
Seldon Capital LP	0	$0	0.00%	−104−100.0%	Sold out
James Investment Research Inc	0	$0	0.00%	−80−100.0%	Sold out
Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	0	$0	0.00%	−60−100.0%	Sold out
Capstone Investment Advisors, LLC	0	$0	0.00%	−54−100.0%	Sold out
Cedar Wealth Management, LLC	0	$0	0.00%	−40−100.0%	Sold out
Madden Securities Corp	0	$0	0.00%	−36−100.0%	Sold out
Kraematon Investment Advisors, Inc	0	$0	0.00%	−30−100.0%	Sold out
Lakewood Asset Management LLC	0	$0	0.00%	−29−100.0%	Sold out
Beaird Harris Wealth Management, LLC	0	$0	0.00%	−23−100.0%	Sold out
Jones Financial Companies LLLP	0	$0	0.00%	−20−100.0%	Sold out
Delta Asset Management LLC	0	$0	0.00%	−16−100.0%	Sold out
EWG Elevate Inc.	0	$0	0.00%	−13−100.0%	Sold out
First National Bank of South Miami	0	$0	0.00%	−7−100.0%	Sold out
My Personal CFO, LLC	0	$0	0.00%	−6−100.0%	Sold out
Sierra Capital LLC	0	$0	0.00%	−5−100.0%	Sold out
MayTech Global Investments, LLC	0	$0	0.00%	−4−100.0%	Sold out
Atticus Wealth Management, LLC	0	$0	0.00%	−3−100.0%	Sold out
Sageworth Trust Co	0	$0	0.00%	−3−100.0%	Sold out
Optiver Holding B.V.	0	$0	0.00%	−3−100.0%	Sold out
Column Capital Advisors, LLC	0	$0	0.00%	−2−100.0%	Sold out
McElhenny Sheffield Capital Management, LLC	0	$0	0.00%	−2−100.0%	Sold out
Pendal Group Limited	–	–	–	–	Not filed
Comerica Bank	–	–	–	–	Not filed
Seeyond	–	–	–	–	Not filed
Allstate Investment Management Co	–	–	–	–	Not filed
Hotaling Investment Management, LLC	–	–	–	–	Not filed
Bennicas & Associates, Inc.	–	–	–	–	Not filed
Axiom Investment Management LLC	–	–	–	–	Not filed
Zeke Capital Advisors, LLC	–	–	–	–	Not filed
CoreCap Advisors, LLC	–	–	–	–	Not filed
Boenning & Scattergood, Inc.	–	–	–	–	Not filed
Willner & Heller, LLC	–	–	–	–	Not filed
Alaska Permanent Fund Corp	–	–	–	–	Not filed
Icon Wealth Advisors, LLC	–	–	–	–	Not filed
HealthInvest Partners AB	–	–	–	–	Not filed
Trustcore Financial Services, LLC	–	–	–	–	Not filed