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Insmed
INSM

Overview Fund Activity

435 hedge funds and large institutions have $15.2B invested in Insmed in 2025 Q1 according to their latest regulatory filings, with 56 funds opening new positions, 184 increasing their positions, 149 reducing their positions, and 49 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
435
Holders Change
–
Holders Change %
0%
% of All Funds
5.91%
Holding in Top 10
31
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+6.9%
% of All Funds
0.42%
New
56
Increased
184
Reduced
149
Closed
49
Calls
$73M
Puts
$145M
Net Calls
-$72M
Net Calls Change
-$110M

Top Buyers

1
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
$485M
2
DGM
Darwin Global Management
Jersey
$1.2B
3
Adage Capital Partners
Adage Capital Partners
Massachusetts
$263M
4
Holocene Advisors
Holocene Advisors
New York
$155M
5
DFO
Duquesne Family Office
New York
$104M

Top Sellers

1
Fidelity Investments
Fidelity Investments
Massachusetts
$259M
2
PAI
Palo Alto Investors
California
$75.3M
3
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
$113M
4
Assenagon Asset Management
Assenagon Asset Management
Luxembourg
$3.03M
5
LGM
Logos Global Management
California
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
Neuberger Berman Group
126
Neuberger Berman Group
New York
$13.5M +$2.09M +27,392 +18%
SBH
127
Segall Bryant & Hamill
Illinois
$13M +$2.43M +31,814 +23%
California State Teachers Retirement System (CalSTRS)
128
California State Teachers Retirement System (CalSTRS)
California
$12M +$332K +4,355 +3%
Two Sigma Advisers
129
Two Sigma Advisers
New York
$12M -$12.9M -169,300 -52%
Prudential Financial
130
Prudential Financial
New Jersey
$11.8M +$645K +8,455 +6%
BG
131
Bellevue Group
Switzerland
$11.5M -$8.23M -107,933 -42%
WCM Investment Management
132
WCM Investment Management
California
$11.3M -$28.2K -361 -0.2%
Rafferty Asset Management
133
Rafferty Asset Management
New York
$11.1M -$2.66M -34,929 -19%
AAA
134
Affinity Asset Advisors
New York
$10.7M +$6.87M +90,000 +180%
RAM
135
Readystate Asset Management
Illinois
$10.3M +$8.27M +108,379 +414%
SFI
136
Susquehanna Fundamental Investments
Pennsylvania
$10.1M -$10.5M -138,035 -51%
Schroder Investment Management Group
137
Schroder Investment Management Group
United Kingdom
$9.94M -$11M -140,568 -52%
Universal-Beteiligungs- und Servicegesellschaft
138
Universal-Beteiligungs- und Servicegesellschaft
Germany
$9.86M +$2.34M +30,727 +31%
State of Wisconsin Investment Board
139
State of Wisconsin Investment Board
Wisconsin
$9.61M +$295K +3,864 +3%
Jane Street
140
Jane Street
New York
$9.5M -$10.6M -139,134 -53%
VanEck Associates
141
VanEck Associates
New York
$9.43M +$329K +4,318 +4%
Mirae Asset Global ETFs Holdings
142
Mirae Asset Global ETFs Holdings
Hong Kong
$8.36M +$319K +4,176 +4%
APM
143
Avidity Partners Management
Texas
$8.16M -$9.6M -125,800 -54%
ACP
144
Acuta Capital Partners
California
$8.09M +$97.2K +1,274 +1%
IIM
145
INTECH Investment Management
Florida
$7.78M +$2.35M +30,752 +43%
TLP
146
Tri Locum Partners
New York
$7.77M +$7.77M +101,859 New
MIM
147
MetLife Investment Management
New Jersey
$7.65M -$246K -3,219 -3%
TCM
148
Tang Capital Management
California
$7.63M – – –
ACM
149
Atika Capital Management
New York
$7.32M +$7.32M +96,000 New
EAM
150
EFG Asset Management
Oregon
$7.18M -$1.02M -13,400 -12%
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