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Regeneron Pharmaceuticals
REGN

Overview Fund Activity

1,188 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, 436 increasing their positions, 471 reducing their positions, and 199 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,188
Holders Change
-85
Holders Change %
-6.68%
% 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
436
Reduced
471
Closed
199
Calls
$1.15B
Puts
$1.01B
Net Calls
+$139M
Net Calls Change
+$166M

Top Buyers

1
Dodge & Cox
Dodge & Cox
California
+$789M
2
Citadel Advisors
Citadel Advisors
Florida
+$318M
3
Two Sigma Advisers
Two Sigma Advisers
New York
+$202M
4
BlackRock
BlackRock
New York
+$184M
5
Acadian Asset Management
Acadian Asset Management
Massachusetts
+$171M

Top Sellers

1
Fidelity Investments
Fidelity Investments
Massachusetts
-$2.24B
2
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
-$902M
3
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$740M
4
Capital International Investors
Capital International Investors
California
-$433M
5
Amundi
Amundi
France
-$387M
Name Holding Trade Value Shares
Change 		Shares
Change %
Fidelity International
76
Fidelity International
Bermuda
$87.2M +$42.5M +81,013 +95%
California State Teachers Retirement System (CalSTRS)
77
California State Teachers Retirement System (CalSTRS)
California
$86.2M -$1.04M -1,973 -1%
Susquehanna International Group
78
Susquehanna International Group
Pennsylvania
$86.1M +$6.63M +12,634 +8%
SAM
79
Southeastern Asset Management
Tennessee
$84.3M +$24M +45,701 +40%
Balyasny Asset Management
80
Balyasny Asset Management
Illinois
$80.6M +$63M +119,909 +358%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
81
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$76.8M +$44.7M +85,159 +139%
Point72 Asset Management
82
Point72 Asset Management
Connecticut
$75.1M +$75.1M +143,108 New
National Bank of Canada
83
National Bank of Canada
Quebec, Canada
$75M +$23.5M +44,828 +46%
CS
84
Candriam SCA
Luxembourg
$74.7M -$38.2M -72,733 -34%
Wells Fargo
85
Wells Fargo
California
$70.4M -$6.11M -11,634 -8%
Raymond James Financial
86
Raymond James Financial
Florida
$68.8M +$10.3M +19,542 +18%
Retirement Systems of Alabama
87
Retirement Systems of Alabama
Alabama
$67.8M -$1.16M -2,219 -2%
New York State Common Retirement Fund
88
New York State Common Retirement Fund
New York
$67.2M -$1.3M -2,471 -2%
AssetMark Inc
89
AssetMark Inc
California
$67M +$12.6M +23,988 +23%
Bank of Montreal
90
Bank of Montreal
Ontario, Canada
$65.4M +$5.69M +10,832 +10%
Principal Financial Group
91
Principal Financial Group
Iowa
$64.7M -$3.35M -6,376 -5%
Canada Pension Plan Investment Board
92
Canada Pension Plan Investment Board
Ontario, Canada
$63.4M -$43.4M -82,752 -41%
AQR Capital Management
93
AQR Capital Management
Connecticut
$59.7M -$63M -121,208 -51%
Natixis Advisors
94
Natixis Advisors
Massachusetts
$59.3M -$1.68M -3,207 -3%
Universal-Beteiligungs- und Servicegesellschaft
95
Universal-Beteiligungs- und Servicegesellschaft
Germany
$55.9M -$26.6M -50,695 -32%
Zurich Cantonal Bank
96
Zurich Cantonal Bank
Switzerland
$55.2M +$4.12M +7,854 +8%
State Board of Administration of Florida Retirement System
97
State Board of Administration of Florida Retirement System
Florida
$54.7M +$776K +1,479 +1%
Envestnet Asset Management
98
Envestnet Asset Management
Illinois
$54.3M -$6.98M -13,305 -11%
Capital Research Global Investors
99
Capital Research Global Investors
California
$53.6M +$10.5M +20,001 +24%
Mackenzie Financial
100
Mackenzie Financial
Ontario, Canada
$53.2M +$18.1M +34,458 +51%
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4
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