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Signal brief

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INSMBearishInsider Tradeinsider
High materiality7/10

INSM insider sale by Lewis William

Jul 24, 2026, 6:01 PM EDT1 sourcesAI-analyzed
Why it may matterVerify against the original reporting

Bearish due to material insider stake reduction by a top executive.

AI summary

What happened, with direct paths to the underlying reporting

INSM insider sale by CEO and director Lewis William: 4,828 shares sold at $105.62, value approximately $509,933.

  • Insider sold 4,828 INSM shares at $105.62 (~$509k).

Key facts

  1. 01

    Insider: Lewis William

  2. 02

    Role: director, officer: Chair and CEO

  3. 03

    Transaction: S-Sale

  4. 04

    Shares: 4,828

  5. 05

    Price: $105.62

  6. 06

    Value: $509,933

How to read this signal

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