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COOKE & BIELER LP: ATO position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of COOKE & BIELER LP on ATO, newest first. How the timeline and the estimate are built.

COOKE & BIELER LP held 2,752 ATO shares at 2026-06-30 per its 13F-HR filed 2026-07-30.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,752 shares
    Change vs previous 13F -190 shares

    0.01% of the 13F portfolio, value $474,087.

    13F-HR 0000024386-26-000006 filed by COOKE & BIELER LP
    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 2,942 shares
    Change vs previous 13F -637,699 shares

    0.01% of the 13F portfolio, value $543,446.

    13F-HR 0000024386-26-000005 filed by COOKE & BIELER LP
    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 640,641 shares
    Change vs previous 13F -296,972 shares

    1.12% of the 13F portfolio, value $107,390,651.

    13F-HR 0000024386-26-000002 filed by COOKE & BIELER LP
    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 937,613 shares
    Change vs previous 13F -73,796 shares

    1.65% of the 13F portfolio, value $160,097,420.

    13F-HR 0000024386-25-000009 filed by COOKE & BIELER LP
    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 1,011,409 shares
    Change vs previous 13F +86,472 shares

    1.56% of the 13F portfolio, value $155,868,241.

    13F-HR 0000024386-25-000004 filed by COOKE & BIELER LP
    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 924,937 shares
    Change vs previous 13F -212,103 shares

    1.43% of the 13F portfolio, value $142,976,761.

    13F-HR 0000024386-25-000003 filed by COOKE & BIELER LP
    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 1,137,040 shares
    Change vs previous 13F -368,198 shares

    1.53% of the 13F portfolio, value $158,355,561.

    13F-HR 0000024386-25-000001 filed by COOKE & BIELER LP
    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 1,505,238 shares
    Change vs previous 13F not available

    1.9% of the 13F portfolio, value $208,791,563.

    13F-HR 0000024386-24-000014 filed by COOKE & BIELER LP
    Filed (acceptance time not in the bulk data set), ingested

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