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Regeneron Pharmaceuticals, Inc.

REGN
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0000872589

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.

Q3 2026 data is still coming in (13F filing deadline: Nov 16, 2026), so these numbers are incomplete.

Q3 2026 vs. Q2 2026

How the institutions holding Regeneron Pharmaceuticals, Inc. changed between Q2 2026 and Q3 2026.

All holders in Q3 2026All holders in Q2 2026

13F holders of REGN: Q2 2026 compared with Q3 2026
MeasureQ2 2026Of which not filed for Q3 2026Q3 2026Change
Holders1,3421,33660
Shares91.4M91.4M1.14K+306 (+36.8%)
Value$57.1B$57.1B$863.1K+$344.3K (+66.4%)

1,336 institutions that held it in Q2 2026 haven't filed for Q3 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (0)

Institutions that held Regeneron Pharmaceuticals, Inc. at the end of Q3 2026 but not at the end of Q2 2026.

None.

Sold out (0)

Institutions that held Regeneron Pharmaceuticals, Inc. at the end of Q2 2026 and filed for Q3 2026 without it.

None.

Not filed for Q3 2026 yet (1,336)

Institutions that held Regeneron Pharmaceuticals, Inc. at the end of Q2 2026 and haven't filed a 13F for Q3 2026. Not filing isn't selling, so they aren't counted as sold out.

Showing the largest 100 of 1,336 by value.

Institutions holding REGN in Q2 2026 that haven't filed for Q3 2026
InstitutionShares, Q2 2026Value, Q2 2026
BlackRock, Inc.9,113,506$5.68B
Vanguard Capital Management LLC6,629,759$4.13B
Dodge & Cox4,871,137$3.04B
State Street Corp4,834,688$3.01B
Invesco Ltd.3,940,665$2.46B
JPMorgan Chase & Co3,774,199$2.38B
Vanguard Portfolio Management LLC3,175,313$1.98B
Franklin Resources Inc2,771,839$1.73B
Geode Capital Management, LLC2,625,810$1.63B
Nuveen, LLC2,019,974$1.26B
Loomis Sayles & Co L P1,859,172$1.16B
Price T Rowe Associates Inc1,529,709$953.8M
Morgan Stanley1,397,712$871.5M
Bank of America Corp1,291,053$805.0M
Wellington Management Group LLP1,270,087$792.0M
Norges Bank1,172,808$731.3M
Goldman Sachs Group Inc1,163,191$725.3M
AQR Capital Management LLC1,126,080$702.2M
Amundi1,013,540$632.0M
Northern Trust Corp916,467$571.5M
Charles Schwab Investment Management Inc846,306$527.7M
FMR LLC831,964$518.8M
Capital World Investors814,925$508.1M
Legal & General Group Plc759,971$473.9M
Bank of New York Mellon Corp758,492$473.0M
UBS Asset Management Americas Inc716,560$446.8M
Two Sigma Investments, LP656,124$409.1M
Vanguard Fiduciary Trust Co563,711$351.5M
Dimensional Fund Advisors LP559,687$349.0M
First Trust Advisors LP547,132$341.2M
Deutsche Bank AG518,409$323.2M
Robeco Institutional Asset Management B.V.460,602$287.2M
Man Group plc436,956$272.5M
SG Americas Securities, LLC427,703$266.7M
Neuberger Berman Group LLC421,976$263.1M
BNP Paribas Arbitrage, SA399,847$249.3M
Arrowstreet Capital, Limited Partnership393,685$245.5M
HSBC Holdings PLC382,028$238.5M
Allianz Asset Management GmbH380,618$237.3M
National Pension Service379,815$236.8M
Pacer Advisors, Inc.369,451$230.4M
Nordea Investment Management AB363,479$227.4M
Alliancebernstein L.P.292,338$225.9M
Worldquant Millennium Advisors LLC353,970$220.7M
Citigroup Inc346,637$216.1M
BNP PARIBAS ASSET MANAGEMENT Holding S.A.331,560$206.7M
UBS Group AG298,234$186.0M
Swiss National Bank293,020$182.7M
Sumitomo Mitsui Trust Holdings, Inc.282,199$176.0M
FIL Ltd265,490$165.5M
TD Asset Management Inc259,317$161.7M
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.257,450$160.5M
Federated Hermes, Inc.256,884$160.2M
Jacobs Levy Equity Management, Inc256,503$159.9M
Barclays PLC256,192$159.7M
LSV Asset Management253,200$157.9M
DekaBank Deutsche Girozentrale211,207$157.7M
Caisse de Depot Et Placement du Quebec250,608$156.3M
Assenagon Asset Management S.A.244,927$152.7M
Russell Investments Group, Ltd.230,151$143.6M
Ameriprise Financial Inc227,457$142.2M
Vanguard Global Advisers, LLC226,724$141.4M
California Public Employees Retirement System224,269$139.8M
Qube Research & Technologies Ltd221,607$138.2M
Canada Pension Plan Investment Board209,911$130.9M
Squarepoint Ops LLC198,567$123.8M
Vanguard Asset Management, Ltd197,770$123.3M
Candriam Luxembourg S.C.A.195,674$121.9M
McDonald Capital Investors Inc193,038$120.4M
Swedbank AB189,848$118.4M
Epoch Investment Partners, Inc.186,850$116.5M
Carmignac Gestion182,507$113.8M
Bank of Nova Scotia181,706$113.3M
Susquehanna International Group, LLP180,219$112.4M
KBC Group NV179,508$111.9M
Chevy Chase Trust Holdings, Inc.179,056$111.6M
Panagora Asset Management Inc175,291$109.3M
Royal Bank of Canada174,515$108.8M
Raymond James Financial Inc172,896$107.8M
Millennium Management LLC165,120$103.0M
Voloridge Investment Management, LLC163,963$102.2M
Bronte Capital Management Pty Ltd.162,618$101.4M
Rhumbline Advisers157,794$98.4M
Acadian Asset Management LLC157,440$98.1M
Bellevue Group AG157,291$98.1M
California State Teachers Retirement System156,724$97.7M
Pictet Asset Management Holding SA153,500$96.5M
Southeastern Asset Management IncSuperinvestorSoutheastern Asset Management (Longleaf)152,322$95.0M
Renaissance Technologies LLC148,222$92.4M
Manufacturers Life Insurance Company, The147,961$92.3M
Jupiter Topco LLC144,821$90.3M
Wells Fargo & Company140,802$87.8M
Mackenzie Financial Corp135,783$84.7M
Thrivent Financial for Lutherans131,457$82.0M
Prudential Financial Inc130,659$81.5M
Natixis Advisors, L.P.129,236$80.6M
Retirement Systems of Alabama127,869$79.7M
Sound Shore Management Inc126,994$79.2M
Victory Capital Management Inc126,343$78.8M
Jupiter Asset Management Ltd126,099$78.6M