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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, 437 increasing their positions, 470 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
437
Reduced
470
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 %
Deutsche Bank
26
Deutsche Bank
Germany
$373M +$88.1M +167,745 +31%
Citadel Advisors
27
Citadel Advisors
Florida
$357M +$318M +605,603 +809%
Bank of New York Mellon
28
Bank of New York Mellon
New York
$345M -$21.9M -41,629 -6%
American Century Companies
29
American Century Companies
Missouri
$334M -$45.1M -85,815 -12%
Qube Research & Technologies (QRT)
30
Qube Research & Technologies (QRT)
United Kingdom
$329M -$40.4M -76,912 -11%
AllianceBernstein
31
AllianceBernstein
Tennessee
$308M -$11.8M -22,381 -4%
BNP Paribas Financial Markets
32
BNP Paribas Financial Markets
France
$275M -$117M -222,255 -30%
Dimensional Fund Advisors
33
Dimensional Fund Advisors
Texas
$273M -$27.2M -51,750 -9%
Two Sigma Investments
34
Two Sigma Investments
New York
$262M +$67.1M +127,757 +34%
Barclays
35
Barclays
United Kingdom
$254M +$84.9M +161,669 +50%
Acadian Asset Management
36
Acadian Asset Management
Massachusetts
$244M +$171M +326,583 +235%
Pacer Advisors
37
Pacer Advisors
Pennsylvania
$234M +$19.8M +37,764 +9%
BNP Paribas Asset Management
38
BNP Paribas Asset Management
France
$231M -$48.2M -91,790 -17%
Assenagon Asset Management
39
Assenagon Asset Management
Luxembourg
$222M -$30.5M -58,064 -12%
Neuberger Berman Group
40
Neuberger Berman Group
New York
$213M -$16.4M -31,314 -7%
Royal Bank of Canada
41
Royal Bank of Canada
Ontario, Canada
$202M +$95.4M +181,682 +89%
Manulife (Manufacturers Life Insurance)
42
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$199M -$9.82M -18,699 -5%
HSBC Holdings
43
HSBC Holdings
United Kingdom
$190M -$14.4M -27,474 -7%
Millennium Management
44
Millennium Management
New York
$178M +$88.9M +169,241 +100%
Swiss National Bank
45
Swiss National Bank
Switzerland
$170M +$9.92M +18,900 +6%
TD Asset Management
46
TD Asset Management
Ontario, Canada
$169M -$15.2M -29,030 -8%
California Public Employees Retirement System
47
California Public Employees Retirement System
California
$165M -$83.3M -158,734 -34%
Sumitomo Mitsui Trust Group
48
Sumitomo Mitsui Trust Group
Japan
$162M +$2.37M +4,516 +1%
Pictet Asset Management
49
Pictet Asset Management
Switzerland
$159M +$1.66M +3,171 +1%
Squarepoint
50
Squarepoint
New York
$156M +$7.19M +13,688 +5%
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