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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
ORI
276
Oak Ridge Investments
Illinois
$2.62M
HFM
277
Harvest Fund Management
China
$2.6M
AB
278
Amalgamated Bank
New York
$2.6M
Prudential Financial
279
Prudential Financial
New Jersey
$2.6M
AI
280
Atom Investors
Texas
$2.58M
Truist Financial
281
Truist Financial
North Carolina
$2.52M
TRCT
282
Tower Research Capital (TRC)
New York
$2.52M
IMCOOI
283
Investment Management Corp of Ontario (IMCO)
Canada
$2.49M
Bank of Nova Scotia
284
Bank of Nova Scotia
Ontario, Canada
$2.49M
KeyBank National Association
285
KeyBank National Association
Ohio
$2.43M
WCM Investment Management
286
WCM Investment Management
California
$2.41M
OAM
287
Oppenheimer Asset Management
New York
$2.41M
Allianz Asset Management
288
Allianz Asset Management
Germany
$2.39M
Royal London Asset Management
289
Royal London Asset Management
United Kingdom
$2.37M
QIM
290
Quantitative Investment Management
Virginia
$2.34M
LSERS
291
Louisiana State Employees Retirement System
Louisiana
$2.32M
Nisa Investment Advisors
292
Nisa Investment Advisors
Missouri
$2.2M
CAPTRUST Financial Advisors
293
CAPTRUST Financial Advisors
North Carolina
$2.17M
CIA
294
Capital Investment Advisors
Georgia
$2.17M
AAIS
295
ABN AMRO Investment Solutions
$2.15M
SCM
296
Sterling Capital Management
North Carolina
$2.12M
Thrivent Financial for Lutherans
297
Thrivent Financial for Lutherans
Minnesota
$2.07M
HP
298
Havemeyer Place
Connecticut
$2.04M
MIM
299
MetLife Investment Management
New Jersey
$2.01M
IMPI
300
Ilmarinen Mutual Pension Insurance
Finland
$1.96M