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CASTLEARK MANAGEMENT LLC: INSM position timeline

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

CASTLEARK MANAGEMENT LLC held 7,790 INSM shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 7,790 shares
    Change vs previous 13F 0 shares

    0.02% of the 13F portfolio, value $830,570.

    13F-HR 0001106832-26-000004 filed by CASTLEARK MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  2. period ended2026-03-31
    13F 7,790 shares
    Change vs previous 13F 0 shares

    0.04% of the 13F portfolio, value $1,273,821.

    13F-HR 0001106832-26-000003 filed by CASTLEARK MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-12-31
    13F 7,790 shares
    Change vs previous 13F +2,060 shares

    0.04% of the 13F portfolio, value $1,355,772.

    13F-HR 0001106832-26-000001 filed by CASTLEARK MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-09-30
    13F 5,730 shares
    Change vs previous 13F +2,590 shares

    0.02% of the 13F portfolio, value $825,177.

    13F-HR 0001106832-25-000008 filed by CASTLEARK MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-06-30
    13F 3,140 shares
    Change vs previous 13F -50,720 shares

    0.01% of the 13F portfolio, value $316,010.

    13F-HR 0001106832-25-000006 filed by CASTLEARK MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-03-31
    13F 53,860 shares
    Change vs previous 13F +1,080 shares

    0.14% of the 13F portfolio, value $4,108,979.

    13F-HR 0001106832-25-000004 filed by CASTLEARK MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-12-31
    13F 52,780 shares
    Change vs previous 13F +9,480 shares

    0.13% of the 13F portfolio, value $3,643,931.

    13F-HR 0001106832-25-000001 filed by CASTLEARK MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-09-30
    13F 43,300 shares
    Change vs previous 13F not available

    0.13% of the 13F portfolio, value $3,160,900.

    13F-HR 0001106832-24-000008 filed by CASTLEARK MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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