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GW&K Investment Management, LLC: MWA position timeline

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

GW&K Investment Management, LLC held 567,401 MWA 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 567,401 shares
    Change vs previous 13F -16,260 shares

    0.11% of the 13F portfolio, value $14,656,000.

    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 583,661 shares
    Change vs previous 13F -52,702 shares

    0.14% of the 13F portfolio, value $16,045,000.

    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 636,363 shares
    Change vs previous 13F +46,897 shares

    0.13% of the 13F portfolio, value $15,158,000.

    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 589,466 shares
    Change vs previous 13F +39,253 shares

    0.13% of the 13F portfolio, value $15,043,000.

    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 550,213 shares
    Change vs previous 13F -18,500 shares

    0.12% of the 13F portfolio, value $13,227,000.

    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 568,713 shares
    Change vs previous 13F not available

    0.13% of the 13F portfolio, value $14,457,000.

    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).