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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 %
Thrivent Financial for Lutherans
76
Thrivent Financial for Lutherans
Minnesota
$87.7M +$8.31M +13,096 +10%
Retirement Systems of Alabama
77
Retirement Systems of Alabama
Alabama
$83.3M +$68.9M +108,589 +476%
New York State Common Retirement Fund
78
New York State Common Retirement Fund
New York
$82.8M -$4.34M -6,846 -5%
WorldQuant Millennium Advisors
79
WorldQuant Millennium Advisors
New York
$82.3M +$15.5M +24,492 +23%
Principal Financial Group
80
Principal Financial Group
Iowa
$82.2M -$549K -865 -0.7%
Tudor Investment Corp
81
Tudor Investment Corp
Connecticut
$80M +$61.9M +97,523 +341%
Canada Life
82
Canada Life
Manitoba, Canada
$79.1M +$2.39M +3,758 +3%
Bank of Nova Scotia
83
Bank of Nova Scotia
Ontario, Canada
$77.7M +$20.6M +32,427 +36%
Envestnet Asset Management
84
Envestnet Asset Management
Illinois
$74M +$16.2M +25,589 +28%
Natixis Advisors
85
Natixis Advisors
Massachusetts
$73.7M +$3.99M +6,294 +6%
SAM
86
Southeastern Asset Management
Tennessee
$72.9M +$72.9M +114,880 New
AC
87
Armistice Capital
New York
$72.3M +$54.6M +86,028 +307%
First Trust Advisors
88
First Trust Advisors
Illinois
$72.3M -$101M -158,672 -58%
Bank of Montreal
89
Bank of Montreal
Ontario, Canada
$72.2M -$25.1M -39,503 -26%
Robeco Institutional Asset Management
90
Robeco Institutional Asset Management
Netherlands
$71.3M -$10.7M -16,813 -13%
Raymond James Financial
91
Raymond James Financial
Florida
$70.7M +$12.7M +20,006 +22%
CGPCS
92
Capital Group Private Client Services
California
$70.4M +$12.5M +19,672 +22%
WP
93
Woodline Partners
California
$67.4M +$1.86M +2,938 +3%
AssetMark Inc
94
AssetMark Inc
California
$65.7M +$1.69M +2,658 +3%
VRS
95
Virginia Retirement Systems
Virginia
$65.4M +$65.4M +103,054 New
PAM
96
Panagora Asset Management
Massachusetts
$65.3M -$212K -334 -0.3%
State Board of Administration of Florida Retirement System
97
State Board of Administration of Florida Retirement System
Florida
$65.2M -$88.8K -140 -0.1%
National Bank of Canada
98
National Bank of Canada
Quebec, Canada
$62.1M -$3.59M -5,667 -5%
Viking Global Investors
99
Viking Global Investors
Connecticut
$62M +$62M +97,739 New
Zurich Cantonal Bank
100
Zurich Cantonal Bank
Switzerland
$61.8M -$27M -42,590 -30%
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4
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