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Disclosery

Janus Henderson: BRK-B position timeline

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

Janus Henderson held 203,103 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 203,103 shares
    Share basis changed not comparable

    Membership change: Jupiter Topco LLC joined the group. 0.04% of the 13F portfolio, value $101,611,958.

    13F-HR 0001085146-26-000611 filed by Jupiter Topco 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/A 249,365 shares
    Change vs previous 13F +19,160 shares

    0.06% of the 13F portfolio, value $119,511,786.

    13F-HR/A 0001085146-26-000420 filed by JANUS HENDERSON GROUP 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 230,205 shares
    Change vs previous 13F -8,645 shares

    0.05% of the 13F portfolio, value $115,738,378.

    13F-HR 0001085146-26-000226 filed by JANUS HENDERSON GROUP 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 238,850 shares
    Change vs previous 13F +54,748 shares

    0.05% of the 13F portfolio, value $120,059,914.

    13F-HR 0001085146-25-005993 filed by JANUS HENDERSON GROUP 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 184,102 shares
    Change vs previous 13F -4,049 shares

    0.04% of the 13F portfolio, value $89,341,607.

    13F-HR 0001085146-25-005104 filed by JANUS HENDERSON GROUP 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 188,151 shares
    Change vs previous 13F -8,877 shares

    0.05% of the 13F portfolio, value $98,982,731.

    13F-HR 0001085146-25-003208 filed by JANUS HENDERSON GROUP 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 197,028 shares
    Change vs previous 13F +15,311 shares

    0.05% of the 13F portfolio, value $89,365,907.

    13F-HR 0001085146-25-001531 filed by JANUS HENDERSON GROUP 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 181,717 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $83,628,863.

    13F-HR 0001085146-24-005765 filed by JANUS HENDERSON GROUP PLC
    Filed (acceptance time not in the bulk data set), ingested

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