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Disclosery

Corundum Group, Inc.: IWM position timeline

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

Corundum Group, Inc. held 14,006 IWM 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 14,006 shares
    Change vs previous 13F +376 shares

    1.25% of the 13F portfolio, value $4,208,103.

    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 13,630 shares
    Change vs previous 13F +2,809 shares

    1.13% of the 13F portfolio, value $3,380,240.

    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 10,821 shares
    Change vs previous 13F +459 shares

    0.89% of the 13F portfolio, value $2,663,697.

    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 10,362 shares
    Change vs previous 13F +284 shares

    1.03% of the 13F portfolio, value $2,507,190.

    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 10,078 shares
    Change vs previous 13F -5,966 shares

    0.96% of the 13F portfolio, value $2,174,732.

    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 16,044 shares
    Change vs previous 13F -8,400 shares

    1.53% of the 13F portfolio, value $3,200,618.

    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 24,444 shares
    Change vs previous 13F +8,755 shares

    2.02% of the 13F portfolio, value $5,401,146.

    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 15,689 shares
    Change vs previous 13F not available

    1.58% of the 13F portfolio, value $3,465,543.

    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).