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DIMENSIONAL FUND ADVISORS LP: AMT position timeline

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

DIMENSIONAL FUND ADVISORS LP held 5,875,655 AMT 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 5,875,655 shares
    Change vs previous 13F +64,614 shares

    0.17% of the 13F portfolio, value $961,164,610.

    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 5,811,041 shares
    Change vs previous 13F -472,089 shares

    0.21% of the 13F portfolio, value $1,002,830,074.

    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 6,283,130 shares
    Change vs previous 13F -74,712 shares

    0.23% of the 13F portfolio, value $1,103,149,832.

    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 6,357,842 shares
    Change vs previous 13F -229,109 shares

    0.26% of the 13F portfolio, value $1,222,780,616.

    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 6,586,951 shares
    Change vs previous 13F +52,089 shares

    0.34% of the 13F portfolio, value $1,455,799,708.

    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 6,534,862 shares
    Change vs previous 13F +88,120 shares

    0.35% of the 13F portfolio, value $1,421,964,608.

    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 6,446,742 shares
    Change vs previous 13F -50,637 shares

    0.28% of the 13F portfolio, value $1,182,380,263.

    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 6,497,379 shares
    Change vs previous 13F not available

    0.37% of the 13F portfolio, value $1,510,990,745.

    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).