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Disclosery

Fortitude Family Office, LLC: BRK-B position timeline

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

Fortitude Family Office, LLC held 2,944 BRK-B shares at 2026-09-30 per its 13F-HR filed 2026-10-14.

the latest 13F is the newest step

  1. period ended2026-09-30
    13F 2,944 shares
    Change vs previous 13F +353 shares

    0.25% of the 13F portfolio, value $1,465,965.

    13F-HR 0001950506-26-000006 filed by Fortitude Family Office, LLC
    Accepted , ingested

  2. period ended2026-06-30
    13F 2,591 shares
    Change vs previous 13F +29 shares

    0.25% of the 13F portfolio, value $1,296,510.

    13F-HR 0001950506-26-000004 filed by Fortitude Family Office, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2026-03-31
    13F 2,562 shares
    Change vs previous 13F +194 shares

    0.28% of the 13F portfolio, value $1,227,710.

    13F-HR 0001950506-26-000003 filed by Fortitude Family Office, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-12-31
    13F 2,368 shares
    Change vs previous 13F +610 shares

    0.28% of the 13F portfolio, value $1,190,275.

    13F-HR 0001950506-26-000002 filed by Fortitude Family Office, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-09-30
    13F 1,758 shares
    Change vs previous 13F +27 shares

    0.24% of the 13F portfolio, value $883,817.

    13F-HR 0001950506-25-000008 filed by Fortitude Family Office, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-06-30
    13F 1,731 shares
    Change vs previous 13F +342 shares

    0.28% of the 13F portfolio, value $840,868.

    13F-HR 0001950506-25-000006 filed by Fortitude Family Office, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2025-03-31
    13F 1,389 shares
    Change vs previous 13F -37 shares

    0.26% of the 13F portfolio, value $739,754.

    13F-HR 0001950506-25-000003 filed by Fortitude Family Office, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-12-31
    13F 1,426 shares
    Change vs previous 13F not available

    0.23% of the 13F portfolio, value $646,377.

    13F-HR 0001950506-25-000001 filed by Fortitude Family Office, LLC
    Filed (acceptance time not in the bulk data set), ingested

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