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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 %
State of Tennessee, Department of Treasury
176
State of Tennessee, Department of Treasury
Tennessee
$23.4M -$200K -315 -0.8%
State of New Jersey Common Pension Fund D
177
State of New Jersey Common Pension Fund D
New Jersey
$23M -$2.26M -3,571 -9%
Man Group
178
Man Group
United Kingdom
$22.6M -$354K -558 -2%
AAIS
179
ABN AMRO Investment Solutions
$22M -$1.67M -2,635 -7%
CIBC Asset Management
180
CIBC Asset Management
Ontario, Canada
$21.9M +$69.8K +110 +0.3%
SO
181
STRS Ohio
Ohio
$21.8M +$460K +725 +2%
Wealth Enhancement Advisory Services
182
Wealth Enhancement Advisory Services
Minnesota
$21.4M -$7.77M -12,246 -27%
Balyasny Asset Management
183
Balyasny Asset Management
Illinois
$21.3M +$3M +4,736 +16%
CF
184
Corebridge Financial
Texas
$21.2M -$779K -1,228 -4%
MIF
185
Mediolanum International Funds
Ireland
$21.2M +$18.3M +28,771 +647%
FAF
186
Fjarde Ap-fonden
Sweden
$21.1M +$1.65M +2,600 +8%
GD
187
Grandfield & Dodd
New York
$21.1M +$388K +611 +2%
Teacher Retirement System of Texas
188
Teacher Retirement System of Texas
Texas
$21M -$3.71M -5,855 -15%
GC
189
Guggenheim Capital
Illinois
$21M -$2.88M -4,547 -12%
PI
190
PGGM Investments
Netherlands
$20.6M – – –
GAM
191
Gotham Asset Management
New York
$20.3M +$13.1M +20,624 +181%
GFM
192
GF Fund Management
China
$20.2M +$481K +759 +2%
RPAM
193
Rhenman & Partners Asset Management
Sweden
$20.1M -$7.42M -11,707 -27%
ASRS
194
Arizona State Retirement System
Arizona
$20.1M +$292K +460 +1%
DCP
195
Distillate Capital Partners
Illinois
$20M -$429K -677 -2%
HighTower Advisors
196
HighTower Advisors
Illinois
$19.8M +$616K +971 +3%
CVA
197
Ceredex Value Advisors
Florida
$19.7M +$19.7M +31,025 New
OIC
198
Orion Investment Company
Missouri
$19.4M +$428K +675 +2%
DP
199
Diadema Partners
New Jersey
$18.9M +$18.9M +29,828 New
WTA
200
Washington Trust Advisors
Massachusetts
$18.7M +$150K +236 +0.8%
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8
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