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Disclosery

UNICOM Systems, Inc.: WDC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of UNICOM Systems, Inc. on WDC, newest first. How the timeline and the estimate are built.

UNICOM Systems, Inc. held 101,600 WDC shares at 2026-06-30 per its 13F-HR filed 2026-07-08.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 101,600 shares
    Change vs previous 13F +11,100 shares

    4.23% of the 13F portfolio, value $64,893,952.

    13F-HR 0001996154-26-000011 filed by UNICOM Systems, Inc.
    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 90,500 shares
    Change vs previous 13F not available

    2.51% of the 13F portfolio, value $24,479,345.

    13F-HR 0001996154-26-000009 filed by UNICOM Systems, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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