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S&CO Inc

SEC CIK
0001082461
Latest filing
Aug 6, 2026

INSM holding history

INSMED Inc in every 13F filed by S&CO Inc, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

INSM overviewAll 13F holders of INSMFull Q2 2026 holdings

Shares (Q2 2026)
13,000
Value
$1.39M
% of portfolio
0.1%
Quarters held
5
Since Q2 2025
Holdings of INSM by S&CO Inc, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202613,000$1.39M0.1%+4,700+56.6%AddedHolders
Q1 20268,300$1.36M0.1%00.0%UnchangedHolders
Q4 20258,300$1.44M0.1%00.0%UnchangedHolders
Q3 20258,300$1.20M0.1%00.0%UnchangedHolders
Q2 20258,300$835.0K0.1%+8,300NewHolders