665 hedge funds and large institutions have $37B invested in Insmed in 2025 Q4 according to their latest regulatory filings, with 193 funds opening new positions, 237 increasing their positions, 180 reducing their positions, and 80 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

0.05% more ownership

Funds ownership: 99.76%99.81% (+0.05%)

10% less call options, than puts

Call options by funds: $671M | Put options by funds: $741M

8% less funds holding in top 10

Funds holding in top 10: 2422 (-2)

Holders
665
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
22
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$671M
Puts
$741M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Citigroup
101
Citigroup
New York
$41.4M
Mitsubishi UFJ Asset Management
102
Mitsubishi UFJ Asset Management
Japan
$39.4M
Allspring Global Investments
103
Allspring Global Investments
North Carolina
$39M
EHI
104
Eagle Health Investments
Connecticut
$36.7M
Neuberger Berman Group
105
Neuberger Berman Group
New York
$36.2M
SPS
106
Susquehanna Portfolio Strategies
Pennsylvania
$36.1M
AIMCA
107
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$35.9M
VOYA Investment Management
108
VOYA Investment Management
Georgia
$35M
NHAS
109
Novo Holdings A/S
Denmark
$34.8M
Loomis, Sayles & Company
110
Loomis, Sayles & Company
Massachusetts
$34.8M
Susquehanna International Group
111
Susquehanna International Group
Pennsylvania
$32.8M
American Century Companies
112
American Century Companies
Missouri
$32.2M
NIP
113
Nicholas Investment Partners
California
$31.4M
State Board of Administration of Florida Retirement System
114
State Board of Administration of Florida Retirement System
Florida
$31.4M
TCG
115
Tremblant Capital Group
Florida
$30.6M
Zurich Cantonal Bank
116
Zurich Cantonal Bank
Switzerland
$28.2M
SI
117
Sofinnova Investments
California
$27.3M
Russell Investments Group
118
Russell Investments Group
United Kingdom
$25.3M
PL
119
Perpetual Ltd
Australia
$24.6M
CWG
120
C WorldWide Group
Denmark
$23.7M
LPL Financial
121
LPL Financial
California
$23.1M
State of Wisconsin Investment Board
122
State of Wisconsin Investment Board
Wisconsin
$22.9M
WP
123
Woodline Partners
California
$22.7M
CM
124
Caption Management
Oklahoma
$22.6M
LFCM
125
Long Focus Capital Management
Puerto Rico
$21.8M