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Disclosery

Tufton Capital Management: ARM position timeline

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

Tufton Capital Management held 3,649 ARM 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 3,649 shares
    Change vs previous 13F -400 shares

    0.22% of the 13F portfolio, value $1,293,000.

    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 4,049 shares
    Change vs previous 13F 0 shares

    0.11% of the 13F portfolio, value $612,000.

    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).

  3. period ended2025-12-31
    13F 4,049 shares
    Change vs previous 13F -626 shares

    0.08% of the 13F portfolio, value $442,000.

    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).

  4. period ended2025-09-30
    13F 4,675 shares
    Change vs previous 13F +150 shares

    0.12% of the 13F portfolio, value $661,000.

    13F-HR 0001055963-25-000005 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).

  5. period ended2025-06-30
    13F 4,525 shares
    Change vs previous 13F +100 shares

    0.14% of the 13F portfolio, value $731,000.

    13F-HR 0001055963-25-000003 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).

  6. period ended2025-03-31
    13F 4,425 shares
    Change vs previous 13F 0 shares

    0.09% of the 13F portfolio, value $472,545.

    13F-HR 0001055963-25-000002 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).

  7. period ended2024-12-31
    13F 4,425 shares
    Change vs previous 13F +65 shares

    0.1% of the 13F portfolio, value $545,868.

    13F-HR 0001055963-25-000001 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).

  8. period ended2024-09-30
    13F 4,360 shares
    Change vs previous 13F not available

    0.12% of the 13F portfolio, value $623,523.

    13F-HR 0001055963-24-000004 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).