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GW&K Investment Management, LLC: TNDM position timeline

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

GW&K Investment Management, LLC held 2,569,032 TNDM 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 2,569,032 shares
    Change vs previous 13F -120,074 shares

    0.3% of the 13F portfolio, value $38,767,000.

    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 2,689,106 shares
    Change vs previous 13F +13,949 shares

    0.45% of the 13F portfolio, value $51,550,000.

    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 2,675,157 shares
    Change vs previous 13F -46,492 shares

    0.51% of the 13F portfolio, value $58,800,000.

    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 2,721,649 shares
    Change vs previous 13F -168,481 shares

    0.29% of the 13F portfolio, value $33,041,000.

    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 2,890,130 shares
    Change vs previous 13F +26,143 shares

    0.48% of the 13F portfolio, value $53,872,000.

    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 2,863,987 shares
    Change vs previous 13F +740,499 shares

    0.51% of the 13F portfolio, value $54,874,000.

    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 2,123,488 shares
    Change vs previous 13F +323,674 shares

    0.65% of the 13F portfolio, value $76,488,000.

    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 1,799,814 shares
    Change vs previous 13F not available

    0.65% of the 13F portfolio, value $76,330,000.

    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).