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Insmed
INSM

Overview Fund Activity

508 hedge funds and large institutions have $21.1B invested in Insmed in 2025 Q2 according to their latest regulatory filings, with 132 funds opening new positions, 161 increasing their positions, 185 reducing their positions, and 52 closing their positions.

Holders
508
Holders Change
+73
Holders Change %
+16.78%
% of All Funds
6.82%
Holding in Top 10
33
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+6.45%
% of All Funds
0.44%
New
132
Increased
161
Reduced
185
Closed
52
Calls
$199M
Puts
$247M
Net Calls
-$48.5M
Net Calls Change
+$23.5M

Top Buyers

1
JPMorgan Chase & Co
1
JPMorgan Chase & Co
New York
$1.57B
2
DGM
2
Darwin Global Management
Jersey
$1.92B
3
D.E. Shaw & Co
3
D.E. Shaw & Co
New York
$344M
4
BBA
4
Baker Bros. Advisors
New York
$776M
5
Norges Bank
5
Norges Bank
Norway
$195M

Top Sellers

1
BlackRock
1
BlackRock
New York
$1.12B
2
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$1.13B
3
State Street
3
State Street
Massachusetts
$431M
4
SCM
4
Suvretta Capital Management
New York
$24M
5
Macquarie Group
5
Macquarie Group
Australia
$114M
Name Market Value Shares Shares
Change 		Shares
Change %
DGM
1
Darwin Global Management
Jersey
$1.92B 19,344,621 +3,946,646 +26%
Vanguard Group
2
Vanguard Group
Pennsylvania
$1.78B 17,644,492 -623,630 -3%
JPMorgan Chase & Co
3
JPMorgan Chase & Co
New York
$1.57B 15,636,399 +9,282,377 +146%
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$1.13B 11,230,705 -1,692,836 -13%
BlackRock
5
BlackRock
New York
$1.12B 11,142,432 -4,906,450 -31%
BBA
6
Baker Bros. Advisors
New York
$776M 7,712,900 +2,332,274 +43%
Capital International Investors
7
Capital International Investors
California
$753M 7,478,859 +280,374 +4%
Fidelity Investments
8
Fidelity Investments
Massachusetts
$513M 5,093,261 +1,698,877 +50%
State Street
9
State Street
Massachusetts
$431M 4,277,888 -1,469,405 -26%
D.E. Shaw & Co
10
D.E. Shaw & Co
New York
$344M 3,422,619 +2,687,739 +366%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$336M 3,340,707 -948,028 -22%
Artisan Partners
12
Artisan Partners
Wisconsin
$334M 3,314,341 +97,073 +3%
RI
13
RTW Investments
New York
$310M 3,084,558 +70,000 +2%
Ameriprise
14
Ameriprise
Minnesota
$298M 2,957,973 +6,351 +0.2%
Adage Capital Partners
15
Adage Capital Partners
Massachusetts
$288M 2,859,452 -587,492 -17%
Franklin Resources
16
Franklin Resources
California
$237M 2,350,133 +201,849 +9%
Janus Henderson Group
17
Janus Henderson Group
United Kingdom
$231M 2,293,142 +747,723 +48%
DFO
18
Duquesne Family Office
New York
$227M 2,253,435 +884,385 +65%
Millennium Management
19
Millennium Management
New York
$214M 2,121,717 +1,442,526 +212%
Holocene Advisors
20
Holocene Advisors
New York
$203M 2,016,806 -9,616 -0.5%
Norges Bank
21
Norges Bank
Norway
$195M 1,934,899 +1,934,899 New
Invesco
22
Invesco
Georgia
$191M 1,896,333 +105,009 +6%
Goldman Sachs
23
Goldman Sachs
New York
$182M 1,810,895 +408,274 +29%
DTC
24
Deep Track Capital
Connecticut
$176M 1,750,000 +1,495,249 +587%
William Blair Investment Management
25
William Blair Investment Management
Illinois
$168M 1,665,602 -647,615 -28%
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