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Impax Asset Management Group plc: MWA position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Impax Asset Management Group plc on MWA, newest first. How the timeline and the estimate are built.

Impax Asset Management Group plc held 2,967,471 MWA shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,967,471 shares
    Change vs previous 13F +19,190 shares

    0.5% of the 13F portfolio, value $76,649,776.

    13F-HR 0001749768-26-000004 filed by Impax Asset Management Group plc
    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 2,948,281 shares
    Change vs previous 13F -416,476 shares

    0.56% of the 13F portfolio, value $81,048,245.

    13F-HR 0001749768-26-000002 filed by Impax Asset Management Group plc
    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 3,364,757 shares
    Change vs previous 13F 0 shares

    0.5% of the 13F portfolio, value $80,148,512.

    13F-HR 0001749768-26-000001 filed by Impax Asset Management Group plc
    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 3,364,757 shares
    Change vs previous 13F 0 shares

    0.5% of the 13F portfolio, value $85,868,599.

    13F-HR 0001749768-25-000052 filed by Impax Asset Management Group plc
    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 3,364,757 shares
    Change vs previous 13F -602,912 shares

    0.47% of the 13F portfolio, value $80,888,758.

    13F-HR 0001749768-25-000049 filed by Impax Asset Management Group plc
    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 3,967,669 shares
    Change vs previous 13F -613,147 shares

    0.61% of the 13F portfolio, value $100,858,146.

    13F-HR 0001749768-25-000042 filed by Impax Asset Management Group plc
    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 4,580,816 shares
    Change vs previous 13F -1,157,922 shares

    0.47% of the 13F portfolio, value $103,068,360.

    13F-HR 0001749768-25-000039 filed by Impax Asset Management Group plc
    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/A 5,738,738 shares
    Change vs previous 13F not available

    0.49% of the 13F portfolio, value $124,530,615.

    13F-HR/A 0001749768-24-000024 filed by Impax Asset Management Group plc
    Filed (acceptance time not in the bulk data set), ingested

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