665 hedge funds and large institutions have $35B invested in Insmed in 2026 Q1 according to their latest regulatory filings, with 98 funds opening new positions, 286 increasing their positions, 212 reducing their positions, and 95 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
665
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
26
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$352M
Puts
$232M
Net Calls
Net Calls Change

Top Buyers

1 +$497M
2 +$259M
3 +$248M
4
Capital World Investors
Capital World Investors
California
+$209M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$196M

Top Sellers

1 -$635M
2 -$355M
3 -$146M
4
JFG
Jefferies Financial Group
New York
-$142M
5
Holocene Advisors
Holocene Advisors
New York
-$139M
Name Holding Trade Value Shares
Change
Change in
Stake
VOYA Investment Management
101
VOYA Investment Management
Georgia
$39.9M
AI
102
Axiom Investors
Connecticut
$39.2M
Two Sigma Investments
103
Two Sigma Investments
New York
$38.8M
Citigroup
104
Citigroup
New York
$38.1M
EQF
105
Evergreen Quality Fund
Cayman Islands
$38M
First Trust Advisors
106
First Trust Advisors
Illinois
$37.5M
EHI
107
Eagle Health Investments
Connecticut
$36.7M
Balyasny Asset Management
108
Balyasny Asset Management
Illinois
$36.3M
SPS
109
Susquehanna Portfolio Strategies
Pennsylvania
$33.9M
Loomis, Sayles & Company
110
Loomis, Sayles & Company
Massachusetts
$31.9M
DCM
111
Defilade Capital Management
California
$31.9M
CAM
112
Cormorant Asset Management
Massachusetts
$31.1M
DCP
113
Davern Capital Partners
New York
$29.9M
NIP
114
Nicholas Investment Partners
California
$29.8M
State Board of Administration of Florida Retirement System
115
State Board of Administration of Florida Retirement System
Florida
$29.5M
TCG
116
Tremblant Capital Group
Florida
$28.4M
Susquehanna International Group
117
Susquehanna International Group
Pennsylvania
$28.4M
Russell Investments Group
118
Russell Investments Group
United Kingdom
$27.7M
SAM
119
SEB Asset Management
$27.1M
TD Asset Management
120
TD Asset Management
Ontario, Canada
$26.7M
CWG
121
C WorldWide Group
Denmark
$26.3M
RPAM
122
Rhenman & Partners Asset Management
Sweden
$26.1M
EGM
123
Engineers Gate Manager
New York
$26M
PSC
124
Patient Square Capital
California
$25.8M
Zurich Cantonal Bank
125
Zurich Cantonal Bank
Switzerland
$24.9M