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INSM
4 quarters

Position history for Castle Hook Partners LP's holdings in INSMED INC

Castle Hook Partners LP holds 1.3M shares of INSM (INSMED INC), worth $207.6M as of 2026-Q1. The position was increased (+1.3% shares). INSM represents 0.9% of Castle Hook Partners LP's portfolio.

Current Value

$207.6M

Current Shares

1.3M

Total Value Change

+$162.1M

Total Shares Change

+817,098

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q1
Latest
Increased
1.3M
+1.3%
$207.6M0.9%$147.00
45
2025-Q4
Increased
1.3M
+14.9%
$218.2M0.9%$174.09
49
2025-Q3
Increased
1.1M
+141.1%
$157.2M0.8%$141.65
69
2025-Q2
New
452,656
-
$45.6M0.3%$99.49
48

Other major holders of INSM: JPMORGAN CHASE & CO, VANGUARD GROUP INC

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