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GW&K Investment Management, LLC: INSM position timeline

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

GW&K Investment Management, LLC held 629,760 INSM shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 629,760 shares
    Change vs previous 13F +6,712 shares

    0.52% of the 13F portfolio, value $67,146,000.

    13F-HR 0001082917-26-000003 filed by GW&K Investment 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 623,048 shares
    Change vs previous 13F +140,378 shares

    0.9% of the 13F portfolio, value $101,881,000.

    13F-HR 0001082917-26-000002 filed by GW&K Investment 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 482,670 shares
    Change vs previous 13F -119,133 shares

    0.73% of the 13F portfolio, value $84,005,000.

    13F-HR 0001082917-26-000001 filed by GW&K Investment 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 601,803 shares
    Change vs previous 13F -672,513 shares

    0.77% of the 13F portfolio, value $86,667,000.

    13F-HR 0001082917-25-000007 filed by GW&K Investment 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 1,274,316 shares
    Change vs previous 13F -103,410 shares

    1.15% of the 13F portfolio, value $128,248,000.

    13F-HR 0001082917-25-000004 filed by GW&K Investment 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 1,377,726 shares
    Change vs previous 13F +242,333 shares

    0.97% of the 13F portfolio, value $105,107,000.

    13F-HR 0001082917-25-000003 filed by GW&K Investment 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 1,135,393 shares
    Change vs previous 13F -18,122 shares

    0.67% of the 13F portfolio, value $78,387,000.

    13F-HR 0001082917-25-000001 filed by GW&K Investment 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 1,153,515 shares
    Change vs previous 13F not available

    0.72% of the 13F portfolio, value $84,207,000.

    13F-HR 0001082917-24-000006 filed by GW&K Investment Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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