REGN icon

Regeneron Pharmaceuticals
REGN

Overview Fund Activity

1,187 hedge funds and large institutions have $46.8B invested in Regeneron Pharmaceuticals in 2025 Q2 according to their latest regulatory filings, with 133 funds opening new positions, 437 increasing their positions, 469 reducing their positions, and 199 closing their positions.

Holders
1,187
Holders Change
-86
Holders Change %
-6.76%
% of All Funds
15.93%
Holding in Top 10
12
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-20%
% of All Funds
0.16%
New
133
Increased
437
Reduced
469
Closed
199
Calls
$1.15B
Puts
$1.01B
Net Calls
+$139M
Net Calls Change
+$166M

Top Buyers

1
Dodge & Cox
1
Dodge & Cox
California
$2.01B
2
Citadel Advisors
2
Citadel Advisors
Florida
$357M
3
Two Sigma Advisers
3
Two Sigma Advisers
New York
$493M
4
BlackRock
4
BlackRock
New York
$4.87B
5
Acadian Asset Management
5
Acadian Asset Management
Massachusetts
$244M

Top Sellers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$1.75B
2
JPMorgan Chase & Co
2
JPMorgan Chase & Co
New York
$2.07B
3
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$402M
4
Capital International Investors
4
Capital International Investors
California
$1.66B
5
Amundi
5
Amundi
France
$491M
Name Holding Trade Value Shares
Change 		Shares
Change %
Rafferty Asset Management
151
Rafferty Asset Management
New York
$27.6M +$4.16M +7,926 +18%
ACM
152
Aquatic Capital Management
Illinois
$27.3M +$20.7M +39,464 +314%
CP
153
CenterBook Partners
Connecticut
$27.1M +$24.1M +45,877 +803%
MG
154
Marex Group
$27M +$27M +51,433 New
Handelsbanken Fonder
155
Handelsbanken Fonder
Sweden
$26.5M +$2.1M +3,998 +9%
IHAM
156
Integral Health Asset Management
New York
$26.3M +$26.3M +50,000 New
Baird Financial Group
157
Baird Financial Group
Wisconsin
$25.7M +$2.3M +4,383 +10%
Robeco Institutional Asset Management
158
Robeco Institutional Asset Management
Netherlands
$25M -$34M -64,787 -58%
Nordea Investment Management
159
Nordea Investment Management
Sweden
$24.5M +$1.44M +2,768 +6%
DnB Asset Management
160
DnB Asset Management
Norway
$24.5M -$1.82M -3,472 -7%
Royal London Asset Management
161
Royal London Asset Management
United Kingdom
$24.4M -$1.61M -3,061 -6%
IG
162
ING Group
Netherlands
$24.2M +$13M +24,797 +116%
Renaissance Technologies
163
Renaissance Technologies
New York
$23.7M -$17.8M -33,839 -43%
HighTower Advisors
164
HighTower Advisors
Illinois
$23M +$6.57M +12,514 +40%
LP
165
LMR Partners
United Kingdom
$22.9M +$22.9M +43,644 New
FGP
166
Freestone Grove Partners
California
$22.8M +$22.8M +43,411 New
Ohio Public Employees Retirement System (OPERS)
167
Ohio Public Employees Retirement System (OPERS)
Ohio
$22.3M -$498K -949 -2%
State of Tennessee, Department of Treasury
168
State of Tennessee, Department of Treasury
Tennessee
$21.9M +$2.57M +4,894 +13%
AP
169
Atwood & Palmer
Missouri
$21.8M -$203K -386 -0.9%
KK
170
KLP Kapitalforvaltning
Norway
$21.8M -$3.78M -7,200 -15%
GC
171
Guggenheim Capital
Illinois
$21.1M +$3.76M +7,166 +22%
MSV
172
MN Services Vermogensbeheer
Netherlands
$21M +$210K +400 +1%
DZ Bank
173
DZ Bank
Germany
$20.8M +$853K +1,625 +4%
RAM
174
Resona Asset Management
Japan
$20.8M +$662K +1,263 +3%
FAF
175
Fjarde Ap-fonden
Sweden
$20.7M +$3.25M +6,200 +19%
5 6
7
8 9