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Disclosery

MARSHALL WACE, LLP: UMC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of MARSHALL WACE, LLP on UMC, newest first. How the timeline and the estimate are built.

MARSHALL WACE, LLP held 139,510 UMC shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 139,510 shares
    Change vs previous 13F -65,904 shares

    <0.01% of the 13F portfolio, value $3,796,067.

    13F-HR 0001318757-26-000010 filed by MARSHALL WACE, LLP
    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 205,414 shares
    Change vs previous 13F -4,533,912 shares

    <0.01% of the 13F portfolio, value $1,844,618.

    13F-HR 0001318757-26-000005 filed by MARSHALL WACE, LLP
    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 4,739,326 shares
    Change vs previous 13F +1,937,921 shares

    0.04% of the 13F portfolio, value $37,251,102.

    13F-HR 0001318757-26-000003 filed by MARSHALL WACE, LLP
    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 2,801,405 shares
    Change vs previous 13F +2,801,405 shares

    0.02% of the 13F portfolio, value $21,234,650.

    13F-HR 0001318757-25-000046 filed by MARSHALL WACE, LLP
    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 0 shares
    Change vs previous 13F -662,824 shares

    13F-HR 0001318757-25-000034 filed by MARSHALL WACE, LLP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

    Exited: the 13F for this period no longer lists the position.

  6. period ended2025-03-31
    13F 662,824 shares
    Change vs previous 13F -2,712,444 shares

    0.01% of the 13F portfolio, value $4,739,192.

    13F-HR 0001318757-25-000023 filed by MARSHALL WACE, LLP
    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 3,375,268 shares
    Change vs previous 13F -4,455,625 shares

    0.03% of the 13F portfolio, value $21,905,489.

    13F-HR 0002048047-25-000005 filed by MARSHALL WACE, LLP
    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 7,830,893 shares
    Change vs previous 13F not available

    0.09% of the 13F portfolio, value $65,936,118.

    13F-HR 0001318757-24-000018 filed by MARSHALL WACE, LLP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).