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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 %
Mitsubishi UFJ Trust & Banking
126
Mitsubishi UFJ Trust & Banking
Japan
$36.1M +$107K +204 +0.3%
Treasurer of the State of North Carolina
127
Treasurer of the State of North Carolina
North Carolina
$36.1M +$10.5M +19,968 +41%
Skandinaviska Enskilda Banken (SEB)
128
Skandinaviska Enskilda Banken (SEB)
Sweden
$35.8M – – –
GAM
129
Groupama Asset Management
France
$35.4M -$11.8M -22,742 -25%
GA
130
GuoLine Advisory
Singapore
$35.3M +$5.78M +11,000 +20%
Hudson Bay Capital Management
131
Hudson Bay Capital Management
Connecticut
$34.8M +$24M +45,771 +222%
APG Asset Management
132
APG Asset Management
Netherlands
$34.7M +$30.4K +68 +0.1%
Grantham, Mayo, Van Otterloo & Co (GMO)
133
Grantham, Mayo, Van Otterloo & Co (GMO)
Massachusetts
$34.3M -$9.47M -18,047 -22%
CI
134
Cambiar Investors
Colorado
$32.8M +$6.38M +12,160 +24%
Axa
135
Axa
France
$32.8M -$10.9M -20,836 -25%
Walleye Capital
136
Walleye Capital
New York
$32.4M +$28.1M +53,575 +654%
Prudential Financial
137
Prudential Financial
New Jersey
$32.2M +$1.98M +3,768 +7%
TAM
138
Tocqueville Asset Management
New York
$32.1M -$13M -24,827 -29%
Asset Management One
139
Asset Management One
Japan
$31.9M -$784K -1,494 -2%
WP
140
Woodline Partners
California
$30.9M -$24.9M -47,439 -45%
Mirae Asset Global Investments
141
Mirae Asset Global Investments
South Korea
$30M +$2.14M +4,080 +8%
State of Wisconsin Investment Board
142
State of Wisconsin Investment Board
Wisconsin
$29.9M -$5.07M -9,653 -14%
VanEck Associates
143
VanEck Associates
New York
$29.7M +$678K +1,292 +2%
LPL Financial
144
LPL Financial
California
$29.6M +$586K +1,116 +2%
Korea Investment Corp
145
Korea Investment Corp
South Korea
$29.5M -$5.07M -9,664 -15%
Jane Street
146
Jane Street
New York
$29.4M -$21.2M -40,435 -42%
Nomura Asset Management
147
Nomura Asset Management
Japan
$29.4M -$19.6M -37,278 -40%
CIS
148
Capital International Sarl
California
$28.3M -$8.57M -16,315 -23%
EAM
149
Erste Asset Management
Austria
$27.9M +$8.54M +16,364 +44%
VRS
150
Virginia Retirement Systems
Virginia
$27.9M -$26.3M -50,000 -49%
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