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Disclosery

OP Asset Management Ltd: BRK-B position timeline

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

OP Asset Management Ltd held 154,952 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-07-28.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 154,952 shares
    Change vs previous 13F -87,106 shares

    0.83% of the 13F portfolio, value $77,536,431.

    13F-HR 0002097005-26-000008 filed by OP Asset Management Ltd
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec ยง4.2).

  2. period ended2026-03-31
    13F/A 242,058 shares
    Change vs previous 13F +91,434 shares

    1.19% of the 13F portfolio, value $115,994,194.

    13F-HR/A 0002097005-26-000013 filed by OP Asset Management Ltd
    Accepted , ingested

  3. period ended2025-12-31
    13F/A 150,624 shares
    Change vs previous 13F +4,803 shares

    0.92% of the 13F portfolio, value $75,711,154.

    13F-HR/A 0002097005-26-000012 filed by OP Asset Management Ltd
    Accepted , ingested

  4. period ended2025-09-30
    13F/A 145,821 shares
    Change vs previous 13F +3,344 shares

    0.97% of the 13F portfolio, value $73,310,050.

    13F-HR/A 0002097005-26-000011 filed by OP Asset Management Ltd
    Accepted , ingested

  5. period ended2025-06-30
    13F/A 142,477 shares
    Change vs previous 13F +3,481 shares

    1.02% of the 13F portfolio, value $69,211,053.

    13F-HR/A 0002097005-26-000010 filed by OP Asset Management Ltd
    Accepted , ingested

  6. period ended2025-03-31
    13F/A 138,996 shares
    Change vs previous 13F not available

    1.25% of the 13F portfolio, value $74,026,489.

    13F-HR/A 0002097005-26-000009 filed by OP Asset Management Ltd
    Accepted , ingested