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DIMENSIONAL FUND ADVISORS LP: ATKR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of DIMENSIONAL FUND ADVISORS LP on ATKR, newest first. How the timeline and the estimate are built.

DIMENSIONAL FUND ADVISORS LP held 1,299,786 ATKR 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 1,299,786 shares
    Change vs previous 13F +71,795 shares

    0.02% of the 13F portfolio, value $98,833,585.

    13F-HR 0000354204-26-000866 filed by DIMENSIONAL FUND ADVISORS 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 1,227,991 shares
    Change vs previous 13F +97,514 shares

    0.02% of the 13F portfolio, value $72,340,574.

    13F-HR 0000354204-26-000581 filed by DIMENSIONAL FUND ADVISORS 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 1,130,477 shares
    Change vs previous 13F +94,398 shares

    0.01% of the 13F portfolio, value $71,503,482.

    13F-HR 0000354204-26-000347 filed by DIMENSIONAL FUND ADVISORS 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 1,036,079 shares
    Change vs previous 13F +18,951 shares

    0.01% of the 13F portfolio, value $64,997,505.

    13F-HR 0000354204-25-001337 filed by DIMENSIONAL FUND ADVISORS 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 1,017,128 shares
    Change vs previous 13F -9,221 shares

    0.02% of the 13F portfolio, value $71,761,503.

    13F-HR 0000354204-25-001097 filed by DIMENSIONAL FUND ADVISORS 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 1,026,349 shares
    Change vs previous 13F -64,468 shares

    0.02% of the 13F portfolio, value $61,569,724.

    13F-HR 0000354204-25-000866 filed by DIMENSIONAL FUND ADVISORS 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 1,090,817 shares
    Change vs previous 13F +6,234 shares

    0.02% of the 13F portfolio, value $91,028,139.

    13F-HR 0000354204-25-000528 filed by DIMENSIONAL FUND ADVISORS 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 1,084,583 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $91,909,192.

    13F-HR 0000354204-24-004773 filed by DIMENSIONAL FUND ADVISORS LP
    Filed (acceptance time not in the bulk data set), ingested

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