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Impax Asset Management Group plc: WMS position timeline

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

Impax Asset Management Group plc held 1,845,942 WMS 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 1,845,942 shares
    Change vs previous 13F -81,568 shares

    1.89% of the 13F portfolio, value $289,739,056.

    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 1,927,510 shares
    Change vs previous 13F -139,213 shares

    1.84% of the 13F portfolio, value $264,319,446.

    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 2,066,723 shares
    Change vs previous 13F -433,353 shares

    1.87% of the 13F portfolio, value $299,323,492.

    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 2,500,076 shares
    Change vs previous 13F -543,833 shares

    2.02% of the 13F portfolio, value $345,787,561.

    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 3,043,909 shares
    Change vs previous 13F +139,495 shares

    2% of the 13F portfolio, value $348,709,102.

    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 2,904,414 shares
    Change vs previous 13F +374,414 shares

    1.9% of the 13F portfolio, value $314,699,727.

    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 2,530,000 shares
    Change vs previous 13F +650,052 shares

    1.32% of the 13F portfolio, value $291,722,958.

    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 1,879,948 shares
    Change vs previous 13F not available

    1.16% of the 13F portfolio, value $294,783,126.

    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).