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ACCOUNT MANAGEMENT LLC: BRK-B position timeline

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

ACCOUNT MANAGEMENT LLC held 44,264 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-04.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 44,264 shares
    Change vs previous 13F -1,050 shares

    22.37% of the 13F portfolio, value $22,149,263.

    13F-HR 0000769954-26-000006 filed by ACCOUNT MANAGEMENT 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 45,314 shares
    Change vs previous 13F -400 shares

    23.79% of the 13F portfolio, value $21,714,469.

    13F-HR 0000769954-26-000003 filed by ACCOUNT MANAGEMENT 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 45,714 shares
    Change vs previous 13F -645 shares

    24.66% of the 13F portfolio, value $22,978,142.

    13F-HR 0000769954-26-000001 filed by ACCOUNT MANAGEMENT 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 46,359 shares
    Change vs previous 13F -425 shares

    24.84% of the 13F portfolio, value $23,306,524.

    13F-HR 0000769954-25-000002 filed by ACCOUNT MANAGEMENT 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 46,784 shares
    Change vs previous 13F -236 shares

    24.95% of the 13F portfolio, value $22,726,264.

    13F-HR 0001085146-25-004072 filed by ACCOUNT MANAGEMENT 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 47,020 shares
    Change vs previous 13F 0 shares

    27.57% of the 13F portfolio, value $25,041,912.

    13F-HR 0001085146-25-002464 filed by ACCOUNT MANAGEMENT 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 47,020 shares
    Change vs previous 13F -1,100 shares

    24.95% of the 13F portfolio, value $21,313,226.

    13F-HR 0001085146-25-001017 filed by ACCOUNT MANAGEMENT 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 48,120 shares
    Change vs previous 13F not available

    26.32% of the 13F portfolio, value $22,147,711.

    13F-HR 0001085146-24-005335 filed by ACCOUNT MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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