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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
$2.01B
2
Citadel Advisors
Citadel Advisors
Florida
$357M
3
Two Sigma Advisers
Two Sigma Advisers
New York
$493M
4
BlackRock
BlackRock
New York
$4.87B
5
Acadian Asset Management
Acadian Asset Management
Massachusetts
$244M

Top Sellers

1
Fidelity Investments
Fidelity Investments
Massachusetts
$1.75B
2
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
$2.07B
3
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
$402M
4
Capital International Investors
Capital International Investors
California
$1.66B
5
Amundi
Amundi
France
$491M
Name Holding Trade Value Shares
Change 		Shares
Change %
Vanguard Group
1
Vanguard Group
Pennsylvania
$4.95B +$8.48M +16,157 +0.2%
BlackRock
2
BlackRock
New York
$4.87B +$184M +350,205 +4%
State Street
3
State Street
Massachusetts
$2.54B +$22.2M +42,343 +0.9%
JPMorgan Chase & Co
4
JPMorgan Chase & Co
New York
$2.07B -$902M -1,718,579 -30%
Dodge & Cox
5
Dodge & Cox
California
$2.01B +$789M +1,502,198 +65%
Fidelity Investments
6
Fidelity Investments
Massachusetts
$1.75B -$2.24B -4,271,533 -56%
Capital International Investors
7
Capital International Investors
California
$1.66B -$433M -823,869 -21%
Geode Capital Management
8
Geode Capital Management
Massachusetts
$1.29B -$2.37M -4,531 -0.2%
Franklin Resources
9
Franklin Resources
California
$1.21B +$19.3M +36,821 +2%
Capital World Investors
10
Capital World Investors
California
$1.03B +$14.4M +27,384 +1%
Loomis, Sayles & Company
11
Loomis, Sayles & Company
Massachusetts
$1.02B +$160M +305,089 +19%
Morgan Stanley
12
Morgan Stanley
New York
$676M +$19.3M +36,709 +3%
Bank of America
13
Bank of America
North Carolina
$641M +$92.5M +176,122 +17%
Norges Bank
14
Norges Bank
Norway
$628M +$628M +1,196,479 New
Invesco
15
Invesco
Georgia
$565M +$118M +225,078 +26%
Northern Trust
16
Northern Trust
Illinois
$503M -$22.7M -43,181 -4%
Two Sigma Advisers
17
Two Sigma Advisers
New York
$493M +$202M +384,700 +69%
Amundi
18
Amundi
France
$491M -$387M -706,770 -44%
UBS AM
19
UBS AM
Illinois
$452M -$41.9M -79,895 -8%
NL
20
Nuveen LLC
North Carolina
$442M +$157M +299,531 +55%
Goldman Sachs
21
Goldman Sachs
New York
$418M -$21.5M -40,887 -5%
D.E. Shaw & Co
22
D.E. Shaw & Co
New York
$408M +$104M +198,580 +34%
T. Rowe Price Associates
23
T. Rowe Price Associates
Maryland
$402M -$740M -1,408,582 -65%
Legal & General Group
24
Legal & General Group
United Kingdom
$388M -$3.91M -7,452 -1%
Charles Schwab
25
Charles Schwab
California
$378M +$5.22M +9,938 +1%
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