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Disclosery

PERCEPTIVE ADVISORS LLC: INSM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of PERCEPTIVE ADVISORS LLC on INSM, newest first. How the timeline and the estimate are built.

PERCEPTIVE ADVISORS LLC held 0 INSM shares at 2025-12-31 per its 13F-HR filed 2026-02-17.

the latest 13F is the newest step

  1. period ended2025-12-31
    13F 0 shares
    Change vs previous 13F -702,130 shares

    13F-HR 0001012975-26-000155 filed by PERCEPTIVE ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-09-30
    13F 702,130 shares
    Change vs previous 13F +51,878 shares

    2.92% of the 13F portfolio, value $101,113,741.

    13F-HR 0001012975-25-000762 filed by PERCEPTIVE ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-06-30
    13F 650,252 shares
    Change vs previous 13F +140,952 shares

    2.46% of the 13F portfolio, value $65,441,361.

    13F-HR 0001012975-25-000446 filed by PERCEPTIVE ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-03-31
    13F/A 509,300 shares
    Change vs previous 13F +365,300 shares

    1.38% of the 13F portfolio, value $38,854,497.

    13F-HR/A 0001012975-25-000422 filed by PERCEPTIVE ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2024-12-31
    13F 144,000 shares
    Change vs previous 13F -36,000 shares

    0.28% of the 13F portfolio, value $9,941,760.

    13F-HR 0001012975-25-000090 filed by PERCEPTIVE ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  6. period ended2024-09-30
    13F 180,000 shares
    Change vs previous 13F not available

    0.28% of the 13F portfolio, value $13,140,000.

    13F-HR 0001012975-24-000488 filed by PERCEPTIVE ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).