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INSMINSM

Showing 8 of 26 quarters

Position history for WILLIAM BLAIR INVESTMENT MANAGEMENT, LLCWILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's holdings in INSMED INC

Yes. William Blair Investment Management holds 629,831 shares of INSM (Insmed), worth $67.2M, as of its Q2 2026 13F filing. It reduced the position by 272,835 shares (-30.2%) from Q1 2026. William Blair Investment Management has held INSM since Q1 2020, across 26 quarterly 13F filings. INSM is 0.2% of William Blair Investment Management's reported 13F portfolio.

Current Value

$67.2M

Current Shares

629,831

Total Value Change

-$109.6M

Total Shares Change

-1.8M

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Decreased
629,831
-30.2%
$67.2M0.2%$106.62
0
2026-Q1
Decreased
902,666
-26.1%
$147.6M0.5%$163.52
0
2025-Q4
Decreased
1.2M
-21.5%
$212.5M0.6%$174.04
0
2025-Q3
Decreased
1.6M
-6.6%
$223.9M0.6%$144.01
0
2025-Q2
Decreased
1.7M
-28.0%
$167.6M0.4%$100.64
0
2025-Q1
Decreased
2.3M
-4.9%
$176.5M0.5%$76.29
0
2024-Q4
Increased
2.4M
+0.5%
$168M0.4%$69.04
36
2024-Q3
Decreased
2.4M
-30.2%
$176.7M0.4%$73.00
0

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