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Disclosery

Corundum Group, Inc.: RSG position timeline

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

Corundum Group, Inc. held 1,061 RSG 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 1,061 shares
    Change vs previous 13F -9 shares

    0.07% of the 13F portfolio, value $226,078.

    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 1,070 shares
    Change vs previous 13F -645 shares

    0.08% of the 13F portfolio, value $234,351.

    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 1,715 shares
    Change vs previous 13F +32 shares

    0.12% of the 13F portfolio, value $363,460.

    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 1,683 shares
    Change vs previous 13F 0 shares

    0.16% of the 13F portfolio, value $386,215.

    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 1,683 shares
    Change vs previous 13F -224 shares

    0.18% of the 13F portfolio, value $415,045.

    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 1,907 shares
    Change vs previous 13F -11 shares

    0.22% of the 13F portfolio, value $461,799.

    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 1,918 shares
    Change vs previous 13F -999 shares

    0.14% of the 13F portfolio, value $385,863.

    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 2,917 shares
    Change vs previous 13F not available

    0.27% of the 13F portfolio, value $585,850.

    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).