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Disclosery

Corundum Group, Inc.: NUSC position timeline

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

Corundum Group, Inc. held 43,317 NUSC shares at 2026-06-30 per its 13F-HR filed 2026-08-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 43,317 shares
    Change vs previous 13F -2,032 shares

    0.67% of the 13F portfolio, value $2,257,682.

    13F-HR 0001486083-26-000003 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).

  2. period ended2026-03-31
    13F 45,349 shares
    Change vs previous 13F -787 shares

    0.68% of the 13F portfolio, value $2,043,426.

    13F-HR 0001486083-26-000002 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 ended2025-12-31
    13F 46,136 shares
    Change vs previous 13F -11,530 shares

    0.69% of the 13F portfolio, value $2,059,972.

    13F-HR 0001486083-26-000001 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 ended2025-09-30
    13F 57,666 shares
    Change vs previous 13F -1,014 shares

    1.04% of the 13F portfolio, value $2,543,071.

    13F-HR 0001486083-25-000006 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).

  5. period ended2025-06-30
    13F 58,680 shares
    Change vs previous 13F -1,827 shares

    1.06% of the 13F portfolio, value $2,390,623.

    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).

  6. period ended2025-03-31
    13F 60,507 shares
    Change vs previous 13F +227 shares

    1.11% of the 13F portfolio, value $2,319,838.

    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).

  7. period ended2024-12-31
    13F 60,280 shares
    Change vs previous 13F -678 shares

    0.94% of the 13F portfolio, value $2,524,647.

    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).

  8. period ended2024-09-30
    13F 60,958 shares
    Change vs previous 13F not available

    1.19% of the 13F portfolio, value $2,611,441.

    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).