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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
17.29%
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
+$248M
3
Two Sigma Investments
Two Sigma Investments
New York
+$214M
4
Assenagon Asset Management
Assenagon Asset Management
Luxembourg
+$193M
5
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
+$166M

Top Sellers

1
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
-$889M
2
Capital World Investors
Capital World Investors
California
-$533M
3
Capital International Investors
Capital International Investors
California
-$474M
4
Fidelity Investments
Fidelity Investments
Massachusetts
-$381M
5
Morgan Stanley
Morgan Stanley
New York
-$114M
Name Holding Trade Value Shares
Change 		Shares
Change %
BLC
1101
Brown, Lisle/Cummings
Rhode Island
$47.6K – – –
TIM
1102
Tortoise Investment Management
New York
$46.9K -$48.8K -77 -51%
ANBT
1103
American National Bank & Trust
Texas
$44.4K +$44.4K +70 New
A
1104
Allianz
Germany
$41.2K -$44.4K -70 -52%
MCA
1105
Maryland Capital Advisors
Maryland
$41.2K – – –
HFS
1106
Hantz Financial Services
Michigan
$41K -$5.77K -9 -12%
AAP
1107
Arax Advisory Partners
Colorado
$39.3K +$30.4K +48 +343%
AA
1108
Ancora Advisors
Ohio
$38.7K -$5.71K -9 -13%
GFPC
1109
Global Financial Private Client
Florida
$38.7K +$1.27K +2 +3%
MHR
1110
Matthew Hamilton Rosenberg
$38.1K – – –
BAM
1111
Bellevue Asset Management
Washington
$36.2K – – –
KB
1112
Kimelman & Baird
New York
$34.2K – – –
FFO
1113
Fortitude Family Office
Arizona
$34.2K – – –
LFG
1114
Larson Financial Group
Missouri
$33.6K -$17.8K -28 -35%
MSWM
1115
Mowery & Schoenfeld Wealth Management
Illinois
$33K – – –
SC
1116
SouthState Corp
Florida
$33K +$27.9K +44 +550%
CTA
1117
Colonial Trust Advisors
South Carolina
$31.8K +$31.8K +50 New
SSB
1118
Sandy Spring Bank
Maryland
$31.7K -$8.25K -13 -21%
CWM
1119
Crowley Wealth Management
Delaware
$31.7K – – –
WIM
1120
Westside Investment Management
California
$31.7K – – –
RI
1121
Ridgewood Investments
New Jersey
$31.7K – – –
AT
1122
Avalon Trust
New Mexico
$31.7K – – –
CG
1123
Curat Global
New Hampshire
$31.7K +$31.7K +50 New
TF
1124
Tompkins Financial
New York
$31.7K +$31.7K +50 New
VWM
1125
Valley Wealth Managers
New Jersey
$29.8K – – –
43 44
45
46 47