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  • REGN Regeneron Pharmaceuticals, Inc.

REGN

Regeneron Pharmaceuticals, Inc.

Company with tickers: REGN

CIK
872589
CUSIP
75886F107
Shares Outstanding
103,021,886
Price History Institutional Holders Short Volume Short Interest Fails to Deliver Financials SEC Filings Earnings Calls Insider Trades Congressional Trades
Holders: 1,377
Total Value: $60,586,059,392
Total Shares: 78,414,346
Showing 1–100 of 1,432 holdings by value · page 1 of 15

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 1,377 13F filers · Δ vs Dec 31, 2025
Top Holder
11.4%
+0.5 pts
Top 5
32.0%
+1.4 pts
Top 10
45.5%
+2.6 pts
HHI
315
Broadly held +28

Quarterly Activity

vs Dec 31, 2025
New
152
Increased
560
Decreased
450
Sold Out
142
Unchanged
215
Holder count: +10
Institutional value: -1.6%
Shares held: -1.7%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Mega FRANKLIN RESOURCES INC +2,679,535 2,722,071
Mega WELLINGTON MANAGEMENT GROUP LLP +1,172,994 1,837,459
Mega TWO SIGMA INVESTMENTS, LP +531,085 812,236
Mega JPMORGAN CHASE & CO +371,646 4,311,806
Mid Bellevue Group AG +264,746 278,674

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds
Mid NORTHERN TRUST CORP −943,777 1,156
Mega FMR LLC −801,374 1,518,192
Large MARSHALL WACE, LLP −478,298 353
Large Centiva Capital, LP −392,590 14,610
Mega JANE STREET GROUP, LLC −383,747 280,574

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Large Swedbank AB 215,590 $166,573,457
Mega JENNISON ASSOCIATES LLC 115,199 $89,007,355
Large CAPITOLIS LIQUID GLOBAL MARKETS LLC 75,000 $57,948,000
Mid Vestal Point Capital, LP 40,000 $30,905,600
Large Connor, Clark & Lunn Investment Management Ltd. 32,164 $24,851,192

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Mega NORGES BANK 1,311,485 $1,012,295,926
Large TWO SIGMA ADVISERS, LP 604,540 $466,626,289
Mega VANGUARD GROUP INC 561,305 $433,254,490
Large Holocene Advisors, LP 460,723 $355,618,262
Large Capitolis Liquid Global Markets LLC 80,000 $61,749,600
100 of 100 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Mega BlackRock, Inc. $6,913,377,962 11.41% 8,947,735 View
Mega STATE STREET CORP $3,603,962,281 5.95% 4,664,478 View
Mega Dodge & Cox $3,444,613,008 5.69% 4,458,238 View
Mega JPMORGAN CHASE & CO $3,331,473,778 5.50% 4,311,806 View
Mega FRANKLIN RESOURCES INC $2,103,180,930 3.47% 2,722,071 View
Mega GEODE CAPITAL MANAGEMENT, LLC $2,014,838,051 3.33% 2,607,732 View
Mega PRICE T ROWE ASSOCIATES INC /MD/ $1,682,444,460 2.78% 2,177,527 View
Mega Nuveen, LLC $1,595,551,047 2.63% 2,065,064 View
Large LOOMIS SAYLES & CO L P $1,477,527,197 2.44% 1,912,310 View
Mega WELLINGTON MANAGEMENT GROUP LLP $1,419,694,318 2.34% 1,837,459 View
Mega Invesco Ltd. $1,332,400,669 2.20% 1,724,478 View
Mega FMR LLC $1,173,015,865 1.94% 1,518,192 View
Mega Capital World Investors $1,096,376,160 1.81% 1,419,000 View
Mega GOLDMAN SACHS GROUP INC $1,004,863,129 1.66% 1,300,558 View
Mega AQR CAPITAL MANAGEMENT LLC $951,126,014 1.57% 1,231,008 View
Mega BANK OF AMERICA CORP /DE/ $919,120,177 1.52% 1,189,584 View
Mega Amundi $780,210,323 1.29% 1,009,798 View
Mega TWO SIGMA INVESTMENTS, LP $627,566,023 1.04% 812,236 View
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $621,595,061 1.03% 804,508 View
Mega Bank of New York Mellon Corp $591,387,145 0.98% 765,411 View
Mega Legal & General Group Plc $565,614,201 0.93% 732,054 View
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $559,098,523 0.92% 723,621 View
Mega DEUTSCHE BANK AG\ $483,199,777 0.80% 625,388 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $469,610,592 0.78% 607,800 View
Mega AMERICAN CENTURY COMPANIES INC $434,298,626 0.72% 562,097 View
Mega MORGAN STANLEY $398,956,526 0.66% 516,355 View
Mega DIMENSIONAL FUND ADVISORS LP $396,410,676 0.65% 513,060 View
Mega BNP PARIBAS ARBITRAGE, SA $346,429,369 0.57% 448,371 View
Mega NEUBERGER BERMAN GROUP LLC $330,016,949 0.54% 427,129 View
Mega ALLIANCEBERNSTEIN L.P. $329,850,832 0.54% 426,914 View
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE $315,956,447 0.52% 408,931 View
Mega National Pension Service $287,075,164 0.47% 371,551 View
Mega ROYAL BANK OF CANADA $271,328,756 0.45% 351,171 View
Mega TD Asset Management Inc $271,137,146 0.45% 350,923 View
Large VOYA INVESTMENT MANAGEMENT LLC $270,356,007 0.45% 349,912 View
Large Robeco Institutional Asset Management B.V. $269,486,787 0.44% 348,787 View
Mega FIRST TRUST ADVISORS LP $267,994,047 0.44% 346,855 View
Large Pictet Asset Management Holding SA $260,575,930 0.43% 337,254 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $259,375,248 0.43% 335,700 View
Large Caisse de depot et placement du Quebec $254,212,467 0.42% 329,018 View
Mega HSBC HOLDINGS PLC $249,823,869 0.41% 323,338 View
Mega AMERIPRISE FINANCIAL INC $246,995,233 0.41% 319,677 View
Large Man Group plc $243,545,399 0.40% 315,212 View
Mega BARCLAYS PLC $241,908,173 0.40% 313,093 View
Mega FIL Ltd $239,139,033 0.39% 309,509 View
Mega Swiss National Bank $234,218,089 0.39% 303,140 View
Large Allianz Asset Management GmbH $232,716,076 0.38% 301,196 View
Mega UBS Group AG $231,775,770 0.38% 299,979 View
Mid Bellevue Group AG $215,314,678 0.36% 278,674 View
Mega Sumitomo Mitsui Trust Group, Inc. $211,447,616 0.35% 273,669 View
Large FEDERATED HERMES, INC. $196,981,475 0.33% 254,946 View
Mega Mitsubishi UFJ Asset Management Co., Ltd. $185,897,184 0.31% 240,600 View
Large Epoch Investment Partners, Inc. $184,448,483 0.30% 238,725 View
Large Russell Investments Group, Ltd. $176,228,356 0.29% 228,086 View
Mega California Public Employees Retirement System $169,031,998 0.28% 218,772 View
Large Swedbank AB $166,573,457 0.27% 215,590 View
Large JACOBS LEVY EQUITY MANAGEMENT, INC $165,468,582 0.27% 214,160 View
Mega CITADEL ADVISORS LLC $165,113,168 0.27% 213,700 View
Large DekaBank Deutsche Girozentrale $163,186,975 0.27% 211,207 View
Mega JANUS HENDERSON GROUP PLC $161,673,373 0.27% 209,248 View
Large Assenagon Asset Management S.A. $160,545,320 0.26% 207,788 View
Mid MCDONALD CAPITAL INVESTORS INC/CA $159,064,169 0.26% 205,871 View
Large Chevy Chase Trust Holdings, LLC $159,034,808 0.26% 205,833 View
Large LSV ASSET MANAGEMENT $151,653,006 0.25% 196,279 View
Large Polar Capital Holdings Plc $148,768,741 0.25% 192,546 View
Mega GOLDMAN SACHS GROUP INC $144,947,264 0.24% 187,600 View
Mega CANADA PENSION PLAN INVESTMENT BOARD $144,910,949 0.24% 187,553 View
Large Candriam S.C.A. $144,010,824 0.24% 186,388 View
Mega CITIGROUP INC $142,699,654 0.24% 184,691 View
Small Bronte Capital Management Pty Ltd. $133,502,147 0.22% 172,787 View
Mega CITADEL ADVISORS LLC $133,203,136 0.22% 172,400 View
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $132,562,617 0.22% 171,571 View
Mega RAYMOND JAMES FINANCIAL INC $127,904,369 0.21% 165,542 View
Large Squarepoint Ops LLC $125,796,608 0.21% 162,814 View
Mega JANE STREET GROUP, LLC $124,781,360 0.21% 161,500 View
Large SG Americas Securities, LLC $122,291,913 0.20% 158,278 View
Mega RHUMBLINE ADVISERS $121,907,911 0.20% 157,781 View
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $119,141,860 0.20% 154,201 View
Large ProShare Advisors LLC $117,748,018 0.19% 152,397 View
Large ACADIAN ASSET MANAGEMENT LLC $116,816,214 0.19% 151,191 View
Mid SOUND SHORE MANAGEMENT INC /CT/ $116,637,734 0.19% 150,960 View
Large Point72 Asset Management, L.P. $111,105,632 0.18% 143,800 View
Mega WELLS FARGO & COMPANY/MN $109,731,102 0.18% 142,021 View
Large PRUDENTIAL FINANCIAL INC $108,548,965 0.18% 140,491 View
Mid SOUTHEASTERN ASSET MANAGEMENT INC/TN/ $100,954,687 0.17% 130,662 View
Mega VICTORY CAPITAL MANAGEMENT INC $99,727,735 0.16% 129,074 View
Large Retirement Systems of Alabama $99,118,122 0.16% 128,285 View
Large NATIXIS ADVISORS, LLC $97,099,986 0.16% 125,673 View
Large Handelsbanken Fonder AB $96,607,815 0.16% 125,036 View
Large Mariner, LLC $95,771,817 0.16% 123,954 View
Large Aberdeen Group plc $93,755,226 0.15% 121,344 View
Mega PRINCIPAL FINANCIAL GROUP INC $93,045,171 0.15% 120,425 View
Large NEW YORK STATE COMMON RETIREMENT FUND $90,683,984 0.15% 117,369 View
Mega JENNISON ASSOCIATES LLC $89,007,355 0.15% 115,199 View
Mega JANE STREET GROUP, LLC $87,849,168 0.14% 113,700 View
Large Universal- Beteiligungs- und Servicegesellschaft mbH $84,774,060 0.14% 109,720 View
Mega ENVESTNET ASSET MANAGEMENT INC $84,335,201 0.14% 109,152 View
Large NATIONAL BANK OF CANADA /FI/ $83,547,108 0.14% 108,132 View
Large PANAGORA ASSET MANAGEMENT INC $81,301,044 0.13% 105,225 View
Large ADAGE CAPITAL PARTNERS GP, L.L.C. $79,656,866 0.13% 103,097 View
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