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DIMENSIONAL FUND ADVISORS LP: AMTM position timeline

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

DIMENSIONAL FUND ADVISORS LP held 5,537,696 AMTM 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 5,537,696 shares
    Change vs previous 13F +1,750,276 shares

    0.02% of the 13F portfolio, value $114,458,757.

    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 3,787,420 shares
    Change vs previous 13F +1,954,494 shares

    0.02% of the 13F portfolio, value $98,767,206.

    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 1,832,926 shares
    Change vs previous 13F +526,875 shares

    0.01% of the 13F portfolio, value $53,156,787.

    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 1,306,051 shares
    Change vs previous 13F -28,701 shares

    0.01% of the 13F portfolio, value $31,272,642.

    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 1,334,752 shares
    Change vs previous 13F +221,098 shares

    0.01% of the 13F portfolio, value $31,512,464.

    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 1,113,654 shares
    Change vs previous 13F -40,476 shares

    0.01% of the 13F portfolio, value $20,267,235.

    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 1,154,130 shares
    Change vs previous 13F -105,218 shares

    0.01% of the 13F portfolio, value $24,283,739.

    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 1,259,348 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $40,549,791.

    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).