INSM icon

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 %
Charles Schwab
26
Charles Schwab
California
$122M +$4.28M +56,048 +4%
Janus Henderson Group
27
Janus Henderson Group
United Kingdom
$121M +$7.78M +99,723 +7%
HRCM
28
Hood River Capital Management
Florida
$119M +$2.49M +32,658 +2%
IHAM
29
Integral Health Asset Management
New York
$118M – – –
SCM
30
Suvretta Capital Management
New York
$114M -$9.09M -119,178 -7%
T. Rowe Price Investment Management
31
T. Rowe Price Investment Management
Maryland
$113M -$38.6M -505,759 -26%
Westfield Capital Management
32
Westfield Capital Management
Massachusetts
$107M +$35.7M +468,058 +50%
Goldman Sachs
33
Goldman Sachs
New York
$107M -$24.2M -317,428 -18%
GKIM
34
GW&K Investment Management
Massachusetts
$105M +$18.5M +242,333 +21%
DFO
35
Duquesne Family Office
New York
$104M +$59.2M +775,580 +131%
Bank of America
36
Bank of America
North Carolina
$103M +$18.7M +245,333 +22%
Lord, Abbett & Co
37
Lord, Abbett & Co
New Jersey
$103M -$8.13M -106,623 -7%
Wellington Management Group
38
Wellington Management Group
Massachusetts
$93.3M +$35.9M +470,401 +63%
EAM
39
Eventide Asset Management
Massachusetts
$90.2M +$6.16M +80,682 +7%
NL
40
Nuveen LLC
North Carolina
$88.4M +$88.4M +1,158,094 New
Bank of New York Mellon
41
Bank of New York Mellon
New York
$88.2M -$21.5M -281,716 -20%
VPC
42
Vestal Point Capital
New York
$82M +$13.4M +175,000 +19%
TCM
43
TimesSquare Capital Management
New York
$81.2M +$29M +379,764 +55%
Morgan Stanley
44
Morgan Stanley
New York
$80.8M -$22.3M -291,709 -22%
Loomis, Sayles & Company
45
Loomis, Sayles & Company
Massachusetts
$77M -$12.6M -165,325 -14%
PAI
46
Palo Alto Investors
California
$75.3M -$47M -616,312 -38%
American Century Companies
47
American Century Companies
Missouri
$66.5M +$4.53M +59,343 +7%
Jennison Associates
48
Jennison Associates
New York
$57.1M -$1.95M -25,500 -3%
Alyeska Investment Group
49
Alyeska Investment Group
Illinois
$56.1M -$15.3M -200,779 -21%
D.E. Shaw & Co
50
D.E. Shaw & Co
New York
$56.1M +$17.2M +226,093 +44%
1
2
3 4 5