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
PMAM
676
Picton Mahoney Asset Management
Ontario, Canada
MIM
677
Monashee Investment Management
Massachusetts
FAF
678
Första AP-fonden
Sweden
TC
679
TwinBeech Capital
New York
FGP
680
Freestone Grove Partners
California
ACP
681
Acuta Capital Partners
California
O
682
OrbiMed
New York
CCIA
683
Campbell & Co Investment Adviser
Maryland
APM
684
Avidity Partners Management
Texas
Verition Fund Management
685
Verition Fund Management
Connecticut
Pacer Advisors
686
Pacer Advisors
Pennsylvania
WMA
687
West Michigan Advisors
Michigan
MMEA
688
Main Management ETF Advisors
California
FA
689
Fedenia Advisers
Wisconsin
EI
690
EAM Investors
California
OE
691
October Effect
Virginia
VF
692
Virtu Financial
New York
II
693
Ishara Investments
California
JF
694
Jump Financial
Illinois
DILIC
695
Dai-ichi Life Insurance Company
Japan
HCMT
696
Highland Capital Management (Tennessee)
Tennessee
FC
697
FORA Capital
Florida
LCM
698
Landscape Capital Management
New Jersey
HCS
699
Himension Capital (Singapore)
Singapore
PCM
700
Park Capital Management
Wisconsin