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Disclosery

Corundum Group, Inc.: BA position timeline

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

Corundum Group, Inc. held 4,610 BA 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 4,610 shares
    Change vs previous 13F not available

    0.3% of the 13F portfolio, value $997,927.

    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 ยง4.2).