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Grantham, Mayo, Van Otterloo & Co. LLC: ATKR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Grantham, Mayo, Van Otterloo & Co. LLC on ATKR, newest first. How the timeline and the estimate are built.

Grantham, Mayo, Van Otterloo & Co. LLC held 6,671 ATKR shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 6,671 shares
    Change vs previous 13F -185 shares

    <0.01% of the 13F portfolio, value $507,263.

    13F-HR 0001072613-26-000636 filed by Grantham, Mayo, Van Otterloo & Co. LLC
    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 6,856 shares
    Change vs previous 13F -203 shares

    <0.01% of the 13F portfolio, value $403,887.

    13F-HR 0001072613-26-000397 filed by Grantham, Mayo, Van Otterloo & Co. LLC
    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 7,059 shares
    Change vs previous 13F -3,688 shares

    <0.01% of the 13F portfolio, value $446,482.

    13F-HR 0001072613-26-000185 filed by Grantham, Mayo, Van Otterloo & Co. LLC
    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 10,747 shares
    Change vs previous 13F -8,692 shares

    <0.01% of the 13F portfolio, value $674,267.

    13F-HR 0001072613-25-000786 filed by Grantham, Mayo, Van Otterloo & Co. LLC
    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 19,439 shares
    Change vs previous 13F -367 shares

    <0.01% of the 13F portfolio, value $1,371,421.

    13F-HR 0001072613-25-000542 filed by Grantham, Mayo, Van Otterloo & Co. LLC
    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 19,806 shares
    Change vs previous 13F -120,481 shares

    <0.01% of the 13F portfolio, value $1,188,162.

    13F-HR 0001072613-25-000369 filed by Grantham, Mayo, Van Otterloo & Co. LLC
    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 140,287 shares
    Change vs previous 13F +6,967 shares

    0.04% of the 13F portfolio, value $11,706,950.

    13F-HR 0001072613-25-000109 filed by Grantham, Mayo, Van Otterloo & Co. LLC
    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 133,320 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $11,297,537.

    13F-HR 0001072613-24-000820 filed by Grantham, Mayo, Van Otterloo & Co. LLC
    Filed (acceptance time not in the bulk data set), ingested

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