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SILVERARC CAPITAL MANAGEMENT, LLC: INSM position timeline

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

SILVERARC CAPITAL MANAGEMENT, LLC held 34,438 INSM shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 34,438 shares
    Change vs previous 13F -1,412 shares

    0.41% of the 13F portfolio, value $3,671,780.

    13F-HR 0001420506-26-001563 filed by SILVERARC CAPITAL 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 35,850 shares
    Change vs previous 13F -35,406 shares

    0.69% of the 13F portfolio, value $5,862,192.

    13F-HR 0001420506-26-001011 filed by SILVERARC CAPITAL 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 71,256 shares
    Change vs previous 13F -135,392 shares

    1.79% of the 13F portfolio, value $12,401,394.

    13F-HR 0001420506-26-000321 filed by SILVERARC CAPITAL 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 206,648 shares
    Change vs previous 13F -42,412 shares

    4.31% of the 13F portfolio, value $29,759,378.

    13F-HR 0001420506-25-003142 filed by SILVERARC CAPITAL 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 249,060 shares
    Change vs previous 13F -72,306 shares

    5.13% of the 13F portfolio, value $25,065,398.

    13F-HR 0001420506-25-002146 filed by SILVERARC CAPITAL 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 321,366 shares
    Change vs previous 13F -50,864 shares

    5.12% of the 13F portfolio, value $24,517,012.

    13F-HR 0001420506-25-001107 filed by SILVERARC CAPITAL 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 372,230 shares
    Change vs previous 13F +24,535 shares

    5.75% of the 13F portfolio, value $25,698,759.

    13F-HR 0001420506-25-000497 filed by SILVERARC CAPITAL 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 347,695 shares
    Change vs previous 13F not available

    5.72% of the 13F portfolio, value $25,381,735.

    13F-HR 0001420506-24-002416 filed by SILVERARC CAPITAL MANAGEMENT, LLC
    Filed (acceptance time not in the bulk data set), ingested

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