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Disclosery

Corundum Group, Inc.: IWB position timeline

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

Corundum Group, Inc. held 10,981 IWB 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 10,981 shares
    Change vs previous 13F +258 shares

    1.33% of the 13F portfolio, value $4,496,719.

    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 10,723 shares
    Change vs previous 13F +1,925 shares

    1.28% of the 13F portfolio, value $3,823,393.

    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 8,798 shares
    Change vs previous 13F +274 shares

    1.1% of the 13F portfolio, value $3,285,525.

    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 8,524 shares
    Change vs previous 13F +127 shares

    1.28% of the 13F portfolio, value $3,115,352.

    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 8,397 shares
    Change vs previous 13F +85 shares

    1.26% of the 13F portfolio, value $2,851,369.

    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 8,312 shares
    Change vs previous 13F -7,547 shares

    1.22% of the 13F portfolio, value $2,549,623.

    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 15,859 shares
    Change vs previous 13F +7,675 shares

    1.91% of the 13F portfolio, value $5,109,135.

    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 8,184 shares
    Change vs previous 13F not available

    1.17% of the 13F portfolio, value $2,572,968.

    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).