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669 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, 288 increasing their positions, 214 reducing their positions, and 93 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
669
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
FG
326
Formula Growth
Quebec, Canada
$1.47M
PNC Financial Services Group
327
PNC Financial Services Group
Pennsylvania
$1.46M
AA
328
AlphaCentric Advisors
Puerto Rico
$1.45M
WPW
329
Waldron Private Wealth
Pennsylvania
$1.44M
QCM
330
QRG Capital Management
Illinois
$1.41M
SCI
331
S&CO Inc
Massachusetts
$1.36M
EMFAT
332
Emerald Mutual Fund Advisers Trust
Pennsylvania
$1.35M
FMI
333
F/M Investments
District of Columbia
$1.35M
P
334
&Partners
Tennessee
$1.34M
NB
335
Norinchukin Bank
Japan
$1.32M
PP
336
Prudential plc
United Kingdom
$1.31M
BAMF
337
BI Asset Management Fondsmaeglerselskab
Denmark
$1.31M
PEAK6
338
PEAK6
Illinois
$1.3M
YMRC
339
Yorktown Management & Research Company
Virginia
$1.3M
SCB
340
Saudi Central Bank
Saudi Arabia
$1.29M
CM
341
Castleark Management
Illinois
$1.27M
AIP
342
Ameritas Investment Partners
Nebraska
$1.27M
Walleye Trading
343
Walleye Trading
New York
$1.25M
SCA
344
Snowden Capital Advisors
New York
$1.24M
Credit Agricole
345
Credit Agricole
France
$1.23M
Rockefeller Capital Management
346
Rockefeller Capital Management
New York
$1.21M
US Bancorp
347
US Bancorp
Minnesota
$1.21M
Pacer Advisors
348
Pacer Advisors
Pennsylvania
$1.19M
AIP
349
Arrowpoint Investment Partners
Singapore
$1.15M
MA
350
MYDA Advisors
New York
$1.14M