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Disclosery

Corundum Group, Inc.: ADP position timeline

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

Corundum Group, Inc. held 4,347 ADP 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 4,347 shares
    Change vs previous 13F +57 shares

    0.29% of the 13F portfolio, value $973,511.

    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 4,290 shares
    Change vs previous 13F +1,552 shares

    0.29% of the 13F portfolio, value $871,642.

    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 2,738 shares
    Change vs previous 13F -616 shares

    0.24% of the 13F portfolio, value $704,296.

    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 3,354 shares
    Change vs previous 13F +6 shares

    0.4% of the 13F portfolio, value $984,399.

    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 3,348 shares
    Change vs previous 13F +1,389 shares

    0.46% of the 13F portfolio, value $1,032,523.

    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 1,959 shares
    Change vs previous 13F -2,300 shares

    0.29% of the 13F portfolio, value $598,533.

    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 4,259 shares
    Change vs previous 13F +2,371 shares

    0.47% of the 13F portfolio, value $1,246,737.

    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 1,888 shares
    Change vs previous 13F not available

    0.24% of the 13F portfolio, value $522,466.

    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).