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Disclosery

Mawer Investment Management Ltd.: ATAT position timeline

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

Mawer Investment Management Ltd. held 752,258 ATAT 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 752,258 shares
    Change vs previous 13F +104,130 shares

    0.16% of the 13F portfolio, value $23,921,804.

    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 648,128 shares
    Change vs previous 13F +168,585 shares

    0.15% of the 13F portfolio, value $23,857,592.

    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 479,543 shares
    Change vs previous 13F not available

    0.11% of the 13F portfolio, value $18,893,994.

    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).