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Disclosery

Corundum Group, Inc.: ECL position timeline

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

Corundum Group, Inc. held 5,646 ECL 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 5,646 shares
    Change vs previous 13F -9 shares

    0.47% of the 13F portfolio, value $1,573,032.

    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 5,655 shares
    Change vs previous 13F +570 shares

    0.5% of the 13F portfolio, value $1,504,343.

    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 5,085 shares
    Change vs previous 13F -20 shares

    0.45% of the 13F portfolio, value $1,334,914.

    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 5,105 shares
    Change vs previous 13F -24 shares

    0.57% of the 13F portfolio, value $1,398,055.

    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 5,129 shares
    Change vs previous 13F +62 shares

    0.61% of the 13F portfolio, value $1,381,958.

    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 5,067 shares
    Change vs previous 13F -2,481 shares

    0.62% of the 13F portfolio, value $1,284,586.

    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 7,548 shares
    Change vs previous 13F +2,444 shares

    0.66% of the 13F portfolio, value $1,768,647.

    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 5,104 shares
    Change vs previous 13F not available

    0.59% of the 13F portfolio, value $1,303,204.

    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).