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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 %
Victory Capital Management
101
Victory Capital Management
Texas
$61.6M -$27.1M -42,722 -31%
Jane Street
102
Jane Street
New York
$61.2M +$3.05M +4,803 +5%
Nomura Asset Management
103
Nomura Asset Management
Japan
$59.2M +$493K +778 +0.8%
Capital Fund Management (CFM)
104
Capital Fund Management (CFM)
France
$58.9M +$22.7M +35,855 +63%
Adage Capital Partners
105
Adage Capital Partners
Massachusetts
$58.8M +$30.7M +48,396 +109%
New York State Teachers Retirement System (NYSTRS)
106
New York State Teachers Retirement System (NYSTRS)
New York
$58.2M -$3.87M -6,104 -6%
GAM
107
Groupama Asset Management
France
$57.8M +$6.55M +10,273 +13%
LWCFA
108
Loring Wolcott & Coolidge Fiduciary Advisors
Massachusetts
$56.7M -$5.65M -9,618 -9%
Mirae Asset Global ETFs Holdings
109
Mirae Asset Global ETFs Holdings
Hong Kong
$55.6M +$3.25M +5,118 +6%
TAM
110
Tocqueville Asset Management
New York
$54.5M +$54.5M +85,929 New
Fidelity International
111
Fidelity International
Bermuda
$54M -$13.3M -20,968 -20%
Grantham, Mayo, Van Otterloo & Co (GMO)
112
Grantham, Mayo, Van Otterloo & Co (GMO)
Massachusetts
$52.9M +$12.9M +20,351 +32%
Axa
113
Axa
France
$52.8M +$1.84M +2,902 +4%
HPG
114
Harvest Portfolios Group
Ontario, Canada
$52.6M +$7.33M +11,555 +16%
SCP
115
Seizert Capital Partners
Michigan
$52.4M +$18M +28,368 +52%
Capital Research Global Investors
116
Capital Research Global Investors
California
$52.1M +$52.1M +82,113 New
PA
117
Pinnacle Associates
New York
$51.4M +$11.8M +18,550 +30%
Renaissance Technologies
118
Renaissance Technologies
New York
$50M -$107M -168,842 -68%
Macquarie Group
119
Macquarie Group
Australia
$50M -$111K -175 -0.2%
Aviva
120
Aviva
United Kingdom
$47.8M +$6.48M +10,220 +16%
Citadel Advisors
121
Citadel Advisors
Florida
$47.5M -$74.5M -117,444 -61%
CII
122
Capital International Inc
California
$46.4M +$1.65M +2,606 +4%
APG Asset Management
123
APG Asset Management
Netherlands
$45.4M -$2.55M -4,348 -5%
CIS
124
Capital International Sarl
California
$44.5M +$3.23M +5,099 +8%
N
125
Natixis
France
$44.1M -$13.7M -21,615 -24%
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5
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