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Impax Asset Management Group plc: ZWS position timeline

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

Impax Asset Management Group plc held 2,633,758 ZWS 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 2,633,758 shares
    Change vs previous 13F +24,616 shares

    0.87% of the 13F portfolio, value $133,083,792.

    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 2,609,142 shares
    Change vs previous 13F -312,742 shares

    0.82% of the 13F portfolio, value $116,993,927.

    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 2,921,884 shares
    Change vs previous 13F -206,262 shares

    0.85% of the 13F portfolio, value $135,838,387.

    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 3,128,146 shares
    Change vs previous 13F -1,805,078 shares

    0.86% of the 13F portfolio, value $147,116,706.

    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 4,933,224 shares
    Change vs previous 13F +916,850 shares

    1.04% of the 13F portfolio, value $180,408,002.

    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 4,016,374 shares
    Change vs previous 13F -75,336 shares

    0.8% of the 13F portfolio, value $132,460,015.

    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 4,091,710 shares
    Change vs previous 13F -4,709,565 shares

    0.69% of the 13F portfolio, value $152,587,325.

    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 8,801,275 shares
    Change vs previous 13F not available

    1.24% of the 13F portfolio, value $315,644,955.

    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).