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Disclosery

Corundum Group, Inc.: CAT position timeline

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

Corundum Group, Inc. held 3,337 CAT 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 3,337 shares
    Change vs previous 13F -22 shares

    1.05% of the 13F portfolio, value $3,553,571.

    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 3,359 shares
    Change vs previous 13F +181 shares

    0.8% of the 13F portfolio, value $2,379,717.

    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 3,178 shares
    Change vs previous 13F -134 shares

    0.61% of the 13F portfolio, value $1,820,581.

    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 3,312 shares
    Change vs previous 13F -33 shares

    0.65% of the 13F portfolio, value $1,580,321.

    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 3,345 shares
    Change vs previous 13F +63 shares

    0.57% of the 13F portfolio, value $1,298,562.

    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 3,282 shares
    Change vs previous 13F -2,310 shares

    0.52% of the 13F portfolio, value $1,082,404.

    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 5,592 shares
    Change vs previous 13F +2,314 shares

    0.76% of the 13F portfolio, value $2,028,554.

    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 3,278 shares
    Change vs previous 13F not available

    0.58% of the 13F portfolio, value $1,282,091.

    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).