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Disclosery

Mawer Investment Management Ltd.: AON position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Mawer Investment Management Ltd. on AON, newest first. How the timeline and the estimate are built.

Mawer Investment Management Ltd. held 1,171,624 AON shares at 2026-06-30 per its 13F-HR filed 2026-08-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,171,624 shares
    Change vs previous 13F -105,464 shares

    2.64% of the 13F portfolio, value $388,615,965.

    13F-HR 0000945621-26-000992 filed by Mawer Investment Management Ltd.
    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 1,277,088 shares
    Change vs previous 13F -200,605 shares

    2.67% of the 13F portfolio, value $412,218,465.

    13F-HR 0000945621-26-000636 filed by Mawer Investment Management Ltd.
    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 1,477,693 shares
    Change vs previous 13F -1,020,396 shares

    2.92% of the 13F portfolio, value $521,448,306.

    13F-HR 0000945621-26-000248 filed by Mawer Investment Management Ltd.
    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 2,498,089 shares
    Change vs previous 13F -473,444 shares

    4.63% of the 13F portfolio, value $890,768,575.

    13F-HR 0000945621-25-001010 filed by Mawer Investment Management Ltd.
    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 2,971,533 shares
    Change vs previous 13F -302,041 shares

    5.38% of the 13F portfolio, value $1,060,124,113.

    13F-HR 0000945621-25-000670 filed by Mawer Investment Management Ltd.
    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 3,273,574 shares
    Change vs previous 13F -629,153 shares

    6.31% of the 13F portfolio, value $1,306,450,647.

    13F-HR 0000945621-25-000421 filed by Mawer Investment Management Ltd.
    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 3,902,727 shares
    Change vs previous 13F -366,738 shares

    6.36% of the 13F portfolio, value $1,401,703,430.

    13F-HR 0000945621-25-000162 filed by Mawer Investment Management Ltd.
    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 4,269,465 shares
    Change vs previous 13F not available

    6.73% of the 13F portfolio, value $1,477,192,195.

    13F-HR 0000945621-24-000863 filed by Mawer Investment Management Ltd.
    Filed (acceptance time not in the bulk data set), ingested

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