551 hedge funds and large institutions have $30.3B invested in Insmed in 2025 Q3 according to their latest regulatory filings, with 127 funds opening new positions, 188 increasing their positions, 195 reducing their positions, and 71 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

7% less call options, than puts

Call options by funds: $610M | Put options by funds: $657M

15.77% less ownership

Funds ownership: 115.5%99.73% (-16%)

27% less funds holding in top 10

Funds holding in top 10: 3324 (-9)

Holders
551
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
24
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$610M
Puts
$657M
Net Calls
Net Calls Change

Top Buyers

1 +$1.07B
2 +$589M
3 +$330M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$322M
5
OAG
Orbis Allan Gray
Bermuda
+$249M
Name Holding Trade Value Shares
Change
Change in
Stake
MIM
576
Monashee Investment Management
Massachusetts
NRD
577
Nebula Research & Development
New York
ACH
578
ArrowMark Colorado Holdings
Colorado
SRL
579
Scientech Research LLC
New Jersey
CL
580
CSS LLC
Illinois
RCAP
581
Resolute Capital Asset Partners
Colorado
UOC
582
UBS O'Connor
Illinois
WG
583
Winton Group
United Kingdom
QT
584
Quantbot Technologies
New York
BG
585
Bollard Group
Massachusetts
LCM
586
Laurion Capital Management
New York
QIM
587
Quantitative Investment Management
Virginia
TSS
588
Two Sigma Securities
New York
LIP
589
Lighthouse Investment Partners
Florida
DC
590
Diametric Capital
Massachusetts
CB
591
Commerce Bank
Missouri
CIAM
592
Caitong International Asset Management
Hong Kong
BPC
593
Bryce Point Capital
New York
FT
594
Fiduciary Trust
Massachusetts
EP
595
Edgestream Partners
New Jersey
BC
596
Bayforest Capital
United Kingdom
MAWAG
597
Mid-American Wealth Advisory Group
Missouri
CC
598
Corton Capital
Ontario, Canada
PCM
599
Prelude Capital Management
New York
BCM
600
Bayesian Capital Management
New York