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Disclosery

Power Alpha Investment Ltd: BRK-B position timeline

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

Power Alpha Investment Ltd held 22,900 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-07-31.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 22,900 shares
    Change vs previous 13F +13,600 shares

    1.15% of the 13F portfolio, value $11,458,931.

    13F-HR 0002014593-26-000005 filed by Power Alpha Investment 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 9,300 shares
    Change vs previous 13F 0 shares

    0.51% of the 13F portfolio, value $4,456,560.

    13F-HR 0002014593-26-000004 filed by Power Alpha Investment 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 9,300 shares
    Change vs previous 13F not available

    0.48% of the 13F portfolio, value $4,674,645.

    13F-HR 0002014593-26-000001 filed by Power Alpha Investment Ltd
    Filed (acceptance time not in the bulk data set), ingested

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