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Disclosery

Corundum Group, Inc.: VOO position timeline

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

Corundum Group, Inc. held 4,152 VOO 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 4,152 shares
    Change vs previous 13F +208 shares

    0.85% of the 13F portfolio, value $2,851,635.

    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 3,944 shares
    Change vs previous 13F +1,114 shares

    0.79% of the 13F portfolio, value $2,356,737.

    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 2,830 shares
    Change vs previous 13F +49 shares

    0.6% of the 13F portfolio, value $1,774,778.

    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 2,781 shares
    Change vs previous 13F +33 shares

    0.7% of the 13F portfolio, value $1,703,029.

    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 2,748 shares
    Change vs previous 13F +157 shares

    0.69% of the 13F portfolio, value $1,560,946.

    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 2,591 shares
    Change vs previous 13F -2,261 shares

    0.64% of the 13F portfolio, value $1,331,541.

    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 4,852 shares
    Change vs previous 13F +2,391 shares

    0.98% of the 13F portfolio, value $2,614,306.

    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 2,461 shares
    Change vs previous 13F not available

    0.59% of the 13F portfolio, value $1,298,596.

    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).