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Polar Capital Holdings Plc: BRK-B position timeline

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

Polar Capital Holdings Plc held 97,908 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 97,908 shares
    Change vs previous 13F -2,802 shares

    0.14% of the 13F portfolio, value $48,992,184.

    13F-HR 0001172661-26-003663 filed by Polar Capital Holdings Plc
    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 100,710 shares
    Change vs previous 13F -892 shares

    0.21% of the 13F portfolio, value $48,260,232.

    13F-HR 0001172661-26-002147 filed by Polar Capital Holdings Plc
    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 101,602 shares
    Change vs previous 13F -316 shares

    0.23% of the 13F portfolio, value $51,070,245.

    13F-HR 0001172661-26-000823 filed by Polar Capital Holdings Plc
    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 101,918 shares
    Change vs previous 13F -15,074 shares

    0.25% of the 13F portfolio, value $51,238,255.

    13F-HR 0001172661-25-004921 filed by Polar Capital Holdings Plc
    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 116,992 shares
    Change vs previous 13F -18,924 shares

    0.3% of the 13F portfolio, value $56,831,204.

    13F-HR 0001172661-25-003304 filed by Polar Capital Holdings Plc
    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 135,916 shares
    Change vs previous 13F +14,860 shares

    0.44% of the 13F portfolio, value $72,386,143.

    13F-HR 0001172661-25-002011 filed by Polar Capital Holdings Plc
    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 121,056 shares
    Change vs previous 13F +11,270 shares

    0.31% of the 13F portfolio, value $54,872,264.

    13F-HR 0001172661-25-000891 filed by Polar Capital Holdings Plc
    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 109,786 shares
    Change vs previous 13F not available

    0.24% of the 13F portfolio, value $50,530,104.

    13F-HR 0001172661-24-004785 filed by Polar Capital Holdings Plc
    Filed (acceptance time not in the bulk data set), ingested

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