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DIMENSIONAL FUND ADVISORS LP: ACI position timeline

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

DIMENSIONAL FUND ADVISORS LP held 16,125,936 ACI 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 16,125,936 shares
    Change vs previous 13F +1,112,411 shares

    0.04% of the 13F portfolio, value $218,179,866.

    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 15,013,525 shares
    Change vs previous 13F +1,583,741 shares

    0.05% of the 13F portfolio, value $255,854,722.

    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 13,429,784 shares
    Change vs previous 13F +5,159,905 shares

    0.05% of the 13F portfolio, value $230,595,096.

    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 8,269,879 shares
    Change vs previous 13F +2,239,291 shares

    0.03% of the 13F portfolio, value $144,803,433.

    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 6,030,588 shares
    Change vs previous 13F +567,873 shares

    0.03% of the 13F portfolio, value $129,697,013.

    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 5,462,715 shares
    Change vs previous 13F +825,983 shares

    0.03% of the 13F portfolio, value $120,101,894.

    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 4,636,732 shares
    Change vs previous 13F +167,725 shares

    0.02% of the 13F portfolio, value $91,064,445.

    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 4,469,007 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $82,587,736.

    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).