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Magellan Asset Management Ltd: BRK-B position timeline

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

Magellan Asset Management Ltd held 139,845 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 139,845 shares
    Change vs previous 13F -192,769 shares

    1.56% of the 13F portfolio, value $69,977,040.

    13F-HR 0001536105-26-000006 filed by Magellan Asset Management Ltd
    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 332,614 shares
    Change vs previous 13F +214,768 shares

    2.07% of the 13F portfolio, value $159,388,629.

    13F-HR 0001536105-26-000005 filed by Magellan Asset Management Ltd
    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 117,846 shares
    Change vs previous 13F -546 shares

    0.72% of the 13F portfolio, value $59,235,292.

    13F-HR 0001536105-26-000004 filed by Magellan Asset Management Ltd
    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 118,392 shares
    Change vs previous 13F +36,616 shares

    0.7% of the 13F portfolio, value $59,520,394.

    13F-HR 0001536105-25-000008 filed by Magellan Asset Management Ltd
    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 81,776 shares
    Change vs previous 13F +8,646 shares

    0.45% of the 13F portfolio, value $39,724,328.

    13F-HR 0001085146-25-004607 filed by Magellan Asset Management Ltd
    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 73,130 shares
    Change vs previous 13F -5,003 shares

    0.47% of the 13F portfolio, value $38,947,575.

    13F-HR 0001085146-25-002952 filed by Magellan Asset Management Ltd
    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 78,133 shares
    Change vs previous 13F not available

    0.39% of the 13F portfolio, value $35,416,126.

    13F-HR 0001085146-25-001106 filed by Magellan Asset Management Ltd
    Filed (acceptance time not in the bulk data set), ingested

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