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DIMENSIONAL FUND ADVISORS LP: MASS position timeline

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

DIMENSIONAL FUND ADVISORS LP held 124,498 MASS 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 124,498 shares
    Change vs previous 13F +5,747 shares

    <0.01% of the 13F portfolio, value $1,083,434.

    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 118,751 shares
    Change vs previous 13F -127,863 shares

    <0.01% of the 13F portfolio, value $725,742.

    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 246,614 shares
    Change vs previous 13F -78,174 shares

    <0.01% of the 13F portfolio, value $1,294,615.

    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 324,788 shares
    Change vs previous 13F -38,219 shares

    <0.01% of the 13F portfolio, value $2,843,470.

    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 363,007 shares
    Change vs previous 13F -21,325 shares

    <0.01% of the 13F portfolio, value $2,587,144.

    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 384,332 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $1,720,601.

    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 384,332 shares
    Change vs previous 13F -12,707 shares

    <0.01% of the 13F portfolio, value $845,338.

    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 397,039 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $1,378,164.

    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).