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Disclosery

Corundum Group, Inc.: MCD position timeline

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

Corundum Group, Inc. held 3,408 MCD 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 3,408 shares
    Change vs previous 13F +72 shares

    0.27% of the 13F portfolio, value $921,216.

    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 3,336 shares
    Change vs previous 13F -617 shares

    0.35% of the 13F portfolio, value $1,036,795.

    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 3,953 shares
    Change vs previous 13F +337 shares

    0.41% of the 13F portfolio, value $1,208,155.

    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 3,616 shares
    Change vs previous 13F +113 shares

    0.45% of the 13F portfolio, value $1,098,866.

    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 3,503 shares
    Change vs previous 13F +32 shares

    0.45% of the 13F portfolio, value $1,023,472.

    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 3,471 shares
    Change vs previous 13F -1,924 shares

    0.52% of the 13F portfolio, value $1,084,236.

    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 5,395 shares
    Change vs previous 13F +1,841 shares

    0.58% of the 13F portfolio, value $1,563,957.

    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 3,554 shares
    Change vs previous 13F not available

    0.49% of the 13F portfolio, value $1,082,229.

    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).