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Disclosery

Tamar Securities, LLC: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Tamar Securities, LLC on BRK-B, newest first. How the timeline and the estimate are built.

Tamar Securities, LLC held 1,078 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-05.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,078 shares
    Change vs previous 13F +141 shares

    0.05% of the 13F portfolio, value $539,451.

    13F-HR 0001172661-26-003097 filed by Tamar Securities, LLC
    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 937 shares
    Change vs previous 13F +266 shares

    0.05% of the 13F portfolio, value $449,040.

    13F-HR 0001172661-26-001937 filed by Tamar Securities, LLC
    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 671 shares
    Change vs previous 13F -57 shares

    0.04% of the 13F portfolio, value $337,309.

    13F-HR 0001703081-26-000001 filed by Tamar Securities, LLC
    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 728 shares
    Change vs previous 13F -3 shares

    0.04% of the 13F portfolio, value $365,997.

    13F-HR 0001172661-25-004782 filed by Tamar Securities, LLC
    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 731 shares
    Change vs previous 13F +48 shares

    0.04% of the 13F portfolio, value $355,100.

    13F-HR 0001172661-25-003007 filed by Tamar Securities, LLC
    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 683 shares
    Change vs previous 13F -17 shares

    0.05% of the 13F portfolio, value $363,754.

    13F-HR 0001172661-25-002224 filed by Tamar Securities, LLC
    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 700 shares
    Change vs previous 13F -87 shares

    0.04% of the 13F portfolio, value $317,298.

    13F-HR 0001172661-25-000316 filed by Tamar Securities, LLC
    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 787 shares
    Change vs previous 13F not available

    0.05% of the 13F portfolio, value $362,383.

    13F-HR 0001085146-24-004951 filed by Tamar Securities, LLC
    Filed (acceptance time not in the bulk data set), ingested

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