WhaleCreep

Which hedge funds own INSM? INSMED INC, Q2 2026 13F holders

HealthcareBiotechnology

103 tracked hedge funds disclosed a position in INSM (INSMED INC) in their Q2 2026 13F filings, worth $6.1bn in total. The largest holder by portfolio weight is Darwin Global Management, Ltd. at 17.9% of its book. 42 opened a new position this quarter: Prosight Management, LP, Ishara Investments LP, Trails Edge Capital Partners, LP, Jones Hill Capital LP. 12 exited: Summit Partners Public Asset Management, LLC, Formula Growth Ltd, Axiom Investors LLC.

103
Holders
Tracked managers whose filing for the quarter reports a long equity position in the security.
42
New this quarter
Holders whose previous filing (at most two quarters earlier) did not report the security.
12
Exited this quarter
Tracked managers whose previous filing reported the security and whose filing for the quarter does not.
$613m
Inflow, new holders
Combined value of the positions the new holders reported for the quarter.
$160m
Outflow, exits
Combined value the exiting managers reported for the security in their previous filing.
$6.1bn
Combined value
Sum of the holders' reported positions in the security.
8.3%
Share of managers holding
Holders as a share of tracked managers filing for that quarter. Comparable across the 2024 coverage expansion, where the raw holder count is not.

Holders, Q2 2026

103 rows
Darwin Global Management, Ltd. Hedge fund17.9%$674m6.43m−62%reduced
Artia Global Partners LP Hedge fund11.9%$62.8m589,052−6.3%reduced
Integral Health Asset Management, LLC Hedge fund7.0%$171m1.60m+6.7%added
Nwi Management LP Hedge fund6.9%$108m1.01m0.0%held
Prosight Management, LP Hedge fund6.9%$40.0m375,609–new
Eagle Health Investments LP Hedge fund6.8%$41.0m384,130+71%added
Palo Alto Investors LP Hedge fund6.1%$44.1m413,980−0.3%held
Baker Bros. Advisors LP Hedge fund4.7%$938m8.80m+19%added
RTW Investments, LP Hedge fund4.4%$516m4.84m0.0%held
Defilade Capital Management, L.P. Hedge fund4.0%$30.0m281,838+45%added
Ishara Investments LP Hedge fund4.0%$5.5m51,250–new
Trails Edge Capital Partners, LP Hedge fund3.9%$24.6m230,331–new
Duquesne Family Office LLC Family office3.5%$152m1.42m+23%added
Affinity Asset Advisors, LLC Hedge fund3.4%$69.3m650,000+35%added
Jones Hill Capital LP Hedge fund2.8%$13.0m122,375–new
Paradigm Biocapital Advisors LP Hedge fund2.6%$141m1.33m+5.7%added
Long Focus Capital Management, LLC Hedge fund2.3%$56.3m528,000+264%added
KVP Capital Advisors, LP Hedge fund2.2%$3.0m28,4970.0%held
Maverick Capital Ltd Hedge fund2.1%$229m2.15m–new
Rock Springs Capital Management LP Hedge fund1.9%$38.6m362,150+15%added
Sphera Funds Management Ltd. Hedge fund1.8%$12.7m118,800–new
Elmind Capital, LP Hedge fund1.7%$6.9m65,000–new
GordonMD Global Investments LP Hedge fund1.5%$3.0m28,5870.0%held
Samlyn Capital, LLC Hedge fund1.3%$78.1m732,568+76%added
ADAR1 Capital Management, LLC Hedge fund1.1%$24.4m228,520+546%added
Castle Hook Partners LP Hedge fund1.1%$106m993,310−22%reduced
Arrowpoint Investment Partners (Singapore) Pte. Ltd. Hedge fund0.9%$3.2m30,170+330%added
Exome Asset Management LLC Hedge fund0.9%$1.5m13,873−48%reduced
Sofinnova Investments, Inc. Hedge fund0.9%$16.9m158,398−54%reduced
Caption Management, LLC Hedge fund0.9%$25.2m236,000–new
Eversept Partners, LP Hedge fund0.9%$15.9m149,209–new
HighVista Strategies LLC Hedge fund0.8%$3.3m31,256+29%added
Cinctive Capital Management LP Hedge fund0.7%$17.3m161,996+122%added
Militia Capital Management LLC Hedge fund0.7%$3.7m35,100–new
Vestal Point Capital, LP Hedge fund0.6%$26.7m250,000–new
Kynam Capital Management, LP Hedge fund0.6%$10.7m100,000–new
Tobam Hedge fund0.6%$2.4m22,370+0.3%held
CenterBook Partners LP Hedge fund0.5%$11.0m103,151+193%added
Tremblant Capital Group Hedge fund0.5%$18.2m170,670−1.7%reduced
Cormorant Asset Management, LP Hedge fund0.4%$8.0m75,000−61%reduced
Silverarc Capital Management, LLC Hedge fund0.4%$3.7m34,438−3.9%reduced
D. E. Shaw & Co., Inc. Hedge fund0.4%$627m5.88m+4.5%added
Redmile Group, LLC Hedge fund0.4%$5.5m51,234–new
Soleus Capital Management, L.P. Hedge fund0.3%$9.6m90,250+780%added
Qsemble Capital Management, LP Hedge fund0.3%$2.3m21,148–new
Polar Capital Holdings Plc Hedge fund0.3%$95.0m890,872+142%added
Candriam S.C.A. Hedge fund0.3%$59.1m555,131+38%added
Twinbeech Capital LP Hedge fund0.3%$1.5m13,646–new
Balyasny Asset Management L.P. Hedge fund0.3%$141m1.33m+498%added
Campbell & CO Investment Adviser LLC Hedge fund0.2%$4.7m43,856–new