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S&CO INC

Position in INSM — INSMED Inc

CIK 1082461 BOSTON, MA

Position in INSM

as of Jun 30, 2026 · filed Aug 6, 2026
Position Value
$1,386,060
+$28,844 QoQ
Shares Held
13,000
+56.6% QoQ
Ownership
0.006%
of shares outstanding
% of Portfolio
0.11%
of 13F equity value
Holder Rank
#314
of 663 holders
Holding Since
Jun 2025
5 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in INSM Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

S&CO INC holds $21,476,053 across 2 Biotechnology names. INSM ranks #2 (6.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 INSM
INSMED Inc
This page
13,000 $1,386,060

All Filings in INSM

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5 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,386,060 13,000
2026-03-31 $1,357,216 8,300
2025-12-31 $1,444,532 8,300
2025-09-30 $1,195,283 8,300
2025-06-30 $835,312 8,300