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Disclosery

Corundum Group, Inc.: GS position timeline

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

Corundum Group, Inc. held 1,897 GS 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 1,897 shares
    Change vs previous 13F +10 shares

    0.57% of the 13F portfolio, value $1,918,569.

    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 1,887 shares
    Change vs previous 13F +180 shares

    0.53% of the 13F portfolio, value $1,596,383.

    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 1,707 shares
    Change vs previous 13F -112 shares

    0.5% of the 13F portfolio, value $1,500,453.

    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 1,819 shares
    Change vs previous 13F -57 shares

    0.6% of the 13F portfolio, value $1,448,561.

    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 1,876 shares
    Change vs previous 13F +713 shares

    0.59% of the 13F portfolio, value $1,327,739.

    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 1,163 shares
    Change vs previous 13F -1,400 shares

    0.3% of the 13F portfolio, value $635,335.

    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 2,563 shares
    Change vs previous 13F +1,385 shares

    0.55% of the 13F portfolio, value $1,467,625.

    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 1,178 shares
    Change vs previous 13F not available

    0.27% of the 13F portfolio, value $583,240.

    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).