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Why it matters

This signal is anchored to the Form 4 disclosure date from Dataroma insider data.

Evidence

LEWIS WILLIAM insider Form 4 disclosure for INSM
Filed 2026-05-20 16:06:00+00 · Period end 2026-05-20 · https://www.sec.gov/Archives/edgar/data/1402051/000140205126000030/xslF345X03/wk-form4_1779307577.xml:1402051:INSM:2026-05-18:Sale:7975:853086:D

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LEWIS WILLIAM disclosed sale in INSMED Inc | TradingNote AI