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Disclosery

Tufton Capital Management: BSX position timeline

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

Tufton Capital Management held 8,727 BSX 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 8,727 shares
    Change vs previous 13F -350 shares

    0.06% of the 13F portfolio, value $372,000.

    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 9,077 shares
    Change vs previous 13F -100 shares

    0.1% of the 13F portfolio, value $569,000.

    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 9,177 shares
    Change vs previous 13F -1,039 shares

    0.15% of the 13F portfolio, value $875,000.

    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 10,216 shares
    Change vs previous 13F -110 shares

    0.18% of the 13F portfolio, value $997,000.

    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 10,326 shares
    Change vs previous 13F 0 shares

    0.21% of the 13F portfolio, value $1,109,000.

    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 10,326 shares
    Change vs previous 13F -427 shares

    0.2% of the 13F portfolio, value $1,041,686.

    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 10,753 shares
    Change vs previous 13F 0 shares

    0.18% of the 13F portfolio, value $960,457.

    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 10,753 shares
    Change vs previous 13F not available

    0.17% of the 13F portfolio, value $901,101.

    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).