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Regeneron Pharmaceuticals
REGN

Overview Fund Activity

1,273 hedge funds and large institutions have $58.3B invested in Regeneron Pharmaceuticals in 2025 Q1 according to their latest regulatory filings, with 139 funds opening new positions, 517 increasing their positions, 449 reducing their positions, and 147 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,273
Holders Change
-30
Holders Change %
-2.3%
% of All Funds
17.3%
Holding in Top 10
15
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+7.14%
% of All Funds
0.2%
New
139
Increased
517
Reduced
449
Closed
147
Calls
$974M
Puts
$1B
Net Calls
-$27.6M
Net Calls Change
-$47.5M

Top Buyers

1
Two Sigma Advisers
Two Sigma Advisers
New York
$351M
2
Pacer Advisors
Pacer Advisors
Pennsylvania
$258M
3
Two Sigma Investments
Two Sigma Investments
New York
$236M
4
Assenagon Asset Management
Assenagon Asset Management
Luxembourg
$305M
5
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
$446M

Top Sellers

1
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
$3.59B
2
Capital World Investors
Capital World Investors
California
$1.23B
3
Capital International Investors
Capital International Investors
California
$2.53B
4
Fidelity Investments
Fidelity Investments
Massachusetts
$4.82B
5
Morgan Stanley
Morgan Stanley
New York
$793M
Name Holding Trade Value Shares
Change 		Shares
Change %
CCP
1326
Clough Capital Partners
Massachusetts
– -$509K -715 Closed
SOS
1327
Silver Oak Securities
Tennessee
– -$497K -708 Closed
CPM
1328
Connective Portfolio Management
New York
– -$449K -630 Closed
CC
1329
Centiva Capital
New York
– -$430K -604 Closed
MAG
1330
MRA Advisory Group
New Jersey
– -$420K -590 Closed
HBT
1331
Heartland Bank & Trust
Illinois
– -$412K -578 Closed
JGGDR
1332
JGP Global Gestao de Recursos
Brazil
– -$383K -538 Closed
1C
1333
111 Capital
France
– -$378K -531 Closed
LCM
1334
Laurion Capital Management
New York
– -$373K -524 Closed
JMFC
1335
J.M. Forbes & Co
Massachusetts
– -$370K -519 Closed
JCIA
1336
Jackson Creek Investment Advisors
Colorado
– -$339K -476 Closed
VEA
1337
Virtus ETF Advisers
New York
– -$336K -472 Closed
APWM
1338
Argonautica Private Wealth Management
Massachusetts
– -$330K -463 Closed
KNW
1339
Kesler Norman & Wride
Utah
– -$316K -443 Closed
SAM
1340
Strategy Asset Managers
California
– -$314K -441 Closed
ADIM
1341
Alpha DNA Investment Management
Maryland
– -$313K -439 Closed
1IA
1342
1834 Investment Advisors
Wisconsin
– -$310K -435 Closed
NPT
1343
Nixon Peabody Trust
Massachusetts
– -$306K -430 Closed
CCP
1344
Cassia Capital Partners
North Carolina
– -$300K -421 Closed
MBTD
1345
Mechanics Bank - Trust Department
California
– -$288K -404 Closed
WCM
1346
Windward Capital Management
California
– -$285K -400 Closed
SNB
1347
Security National Bank
Nebraska
– -$285K -400 Closed
CAG
1348
Csenge Advisory Group
Florida
– -$276K -387 Closed
FA
1349
Forefront Analytics
Pennsylvania
– -$262K -368 Closed
DWA
1350
Douglass Winthrop Advisors
New York
– -$259K -364 Closed
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