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Banque Transatlantique SA: BRK-B position timeline

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

Banque Transatlantique SA held 9,705 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-07-30.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 9,705 shares
    Change vs previous 13F +1,378 shares

    0.1% of the 13F portfolio, value $4,817,482.

    13F-HR 0002056095-26-000004 filed by Banque Transatlantique SA
    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 8,327 shares
    Change vs previous 13F +4,986 shares

    0.1% of the 13F portfolio, value $3,982,066.

    13F-HR 0002056095-26-000003 filed by Banque Transatlantique SA
    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/A 3,341 shares
    Change vs previous 13F +248 shares

    0.04% of the 13F portfolio, value $1,676,599.

    13F-HR/A 0002056095-26-000002 filed by Banque Transatlantique SA
    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 3,093 shares
    Change vs previous 13F -1,949 shares

    0.04% of the 13F portfolio, value $1,549,354.

    13F-HR 0000945621-25-001097 filed by Banque Transatlantique SA
    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 5,042 shares
    Change vs previous 13F +1,637 shares

    0.07% of the 13F portfolio, value $2,459,997.

    13F-HR 0000945621-25-000765 filed by Banque Transatlantique SA
    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/A 3,405 shares
    Change vs previous 13F +135 shares

    0.05% of the 13F portfolio, value $1,814,237.

    13F-HR/A 0000945621-25-000858 filed by Banque Transatlantique SA
    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 3,270 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $1,473,601.

    13F-HR 0000945621-25-000203 filed by Banque Transatlantique SA
    Filed (acceptance time not in the bulk data set), ingested

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