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DIMENSIONAL FUND ADVISORS LP: UMC position timeline

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

DIMENSIONAL FUND ADVISORS LP held 3,218,824 UMC 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 3,218,824 shares
    Change vs previous 13F +369,087 shares

    0.02% of the 13F portfolio, value $87,584,195.

    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 2,849,737 shares
    Change vs previous 13F +333,011 shares

    0.01% of the 13F portfolio, value $25,590,636.

    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 2,516,726 shares
    Change vs previous 13F +432,141 shares

    <0.01% of the 13F portfolio, value $19,781,465.

    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 2,084,585 shares
    Change vs previous 13F +340,970 shares

    <0.01% of the 13F portfolio, value $15,801,153.

    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 1,743,615 shares
    Change vs previous 13F +311,498 shares

    <0.01% of the 13F portfolio, value $13,338,653.

    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 1,432,117 shares
    Change vs previous 13F +143,604 shares

    <0.01% of the 13F portfolio, value $10,239,634.

    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 1,288,513 shares
    Change vs previous 13F +214,783 shares

    <0.01% of the 13F portfolio, value $8,362,448.

    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 1,073,730 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $9,040,804.

    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).