Skip to content
Disclosery

DIMENSIONAL FUND ADVISORS LP: AMSF position timeline

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

DIMENSIONAL FUND ADVISORS LP held 471,150 AMSF 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 471,150 shares
    Change vs previous 13F +3,190 shares

    <0.01% of the 13F portfolio, value $15,938,964.

    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 467,960 shares
    Change vs previous 13F -25,295 shares

    <0.01% of the 13F portfolio, value $15,597,979.

    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 493,255 shares
    Change vs previous 13F -19,615 shares

    <0.01% of the 13F portfolio, value $18,946,008.

    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 512,870 shares
    Change vs previous 13F -7,282 shares

    <0.01% of the 13F portfolio, value $22,483,479.

    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 520,152 shares
    Change vs previous 13F -36,407 shares

    0.01% of the 13F portfolio, value $22,746,625.

    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 556,559 shares
    Change vs previous 13F -23,411 shares

    0.01% of the 13F portfolio, value $29,247,041.

    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 579,970 shares
    Change vs previous 13F -19,324 shares

    0.01% of the 13F portfolio, value $29,891,518.

    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 599,294 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $28,963,849.

    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).