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Corundum Trust Company, INC: MMM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Corundum Trust Company, INC on MMM, newest first. How the timeline and the estimate are built.

Corundum Trust Company, INC held 39,280 MMM shares at 2026-06-30 per its 13F-HR filed 2026-07-29.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 39,280 shares
    Change vs previous 13F 0 shares

    16.98% of the 13F portfolio, value $6,359,825.

    13F-HR 0001987720-26-000003 filed by Corundum Trust Company, 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 39,280 shares
    Change vs previous 13F +125 shares

    13.03% of the 13F portfolio, value $5,704,634.

    13F-HR 0001987720-26-000002 filed by Corundum Trust Company, 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 39,155 shares
    Change vs previous 13F -1,269 shares

    14.27% of the 13F portfolio, value $6,268,715.

    13F-HR 0001987720-26-000001 filed by Corundum Trust Company, 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 40,424 shares
    Change vs previous 13F -3 shares

    13.61% of the 13F portfolio, value $6,272,996.

    13F-HR 0001987720-25-000007 filed by Corundum Trust Company, 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 40,427 shares
    Change vs previous 13F -2 shares

    16.25% of the 13F portfolio, value $6,154,606.

    13F-HR 0001987720-25-000006 filed by Corundum Trust Company, 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 40,429 shares
    Change vs previous 13F -74 shares

    17.11% of the 13F portfolio, value $5,937,403.

    13F-HR 0001987720-25-000004 filed by Corundum Trust Company, 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 40,503 shares
    Change vs previous 13F -164 shares

    15.7% of the 13F portfolio, value $5,228,532.

    13F-HR 0001987720-25-000001 filed by Corundum Trust Company, 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 40,667 shares
    Change vs previous 13F not available

    15.32% of the 13F portfolio, value $5,559,179.

    13F-HR 0001987720-24-000002 filed by Corundum Trust Company, INC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).