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GW&K Investment Management, LLC: MGY position timeline

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

GW&K Investment Management, LLC held 2,917,419 MGY 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 2,917,419 shares
    Change vs previous 13F -163,845 shares

    0.58% of the 13F portfolio, value $74,627,000.

    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 3,081,264 shares
    Change vs previous 13F -88,232 shares

    0.86% of the 13F portfolio, value $97,276,000.

    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 3,169,496 shares
    Change vs previous 13F +404,402 shares

    0.6% of the 13F portfolio, value $69,381,000.

    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 2,765,094 shares
    Change vs previous 13F -288,218 shares

    0.58% of the 13F portfolio, value $66,003,000.

    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 3,053,312 shares
    Change vs previous 13F -371,529 shares

    0.61% of the 13F portfolio, value $68,639,000.

    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 3,424,841 shares
    Change vs previous 13F -59,314 shares

    0.8% of the 13F portfolio, value $86,512,000.

    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 3,484,155 shares
    Change vs previous 13F -42,361 shares

    0.69% of the 13F portfolio, value $81,460,000.

    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 3,526,516 shares
    Change vs previous 13F not available

    0.74% of the 13F portfolio, value $86,117,000.

    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).