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Disclosery

Corundum Group, Inc.: UNP position timeline

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

Corundum Group, Inc. held 0 UNP shares at 2025-06-30 per its 13F-HR filed 2025-07-21.

the latest 13F is the newest step

  1. period ended2025-06-30
    13F 0 shares
    Change vs previous 13F -1,272 shares

    13F-HR 0001486083-25-000005 filed by Corundum Group, Inc.
    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.

  2. period ended2025-03-31
    13F 1,272 shares
    Change vs previous 13F +210 shares

    0.14% of the 13F portfolio, value $300,497.

    13F-HR 0001486083-25-000004 filed by Corundum Group, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2024-12-31
    13F 1,062 shares
    Change vs previous 13F -90 shares

    0.09% of the 13F portfolio, value $242,178.

    13F-HR 0001486083-25-000001 filed by Corundum Group, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2024-09-30
    13F 1,152 shares
    Change vs previous 13F not available

    0.13% of the 13F portfolio, value $283,945.

    13F-HR 0001486083-24-000004 filed by Corundum Group, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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