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Disclosery

Tufton Capital Management: MDB position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Tufton Capital Management on MDB, newest first. How the timeline and the estimate are built.

Tufton Capital Management held 600 MDB shares at 2026-06-30 per its 13F-HR filed 2026-07-27.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 600 shares
    Change vs previous 13F +600 shares

    0.03% of the 13F portfolio, value $201,000.

    13F-HR 0001055963-26-000003 filed by Tufton Capital Management
    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 0 shares
    Change vs previous 13F -600 shares

    13F-HR 0001055963-26-000002 filed by Tufton Capital Management
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  3. period ended2025-12-31
    13F 600 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $251,000.

    13F-HR 0001055963-26-000001 filed by Tufton Capital Management
    Filed (acceptance time not in the bulk data set), ingested

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