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JANE STREET GROUP, LLC: BRK-B position timeline

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

JANE STREET GROUP, LLC held 420,574 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 420,574 shares
    Change vs previous 13F +354,707 shares

    0.13% of the 13F portfolio, value $210,451,024.

    13F-HR 0001595888-26-000108 filed by JANE STREET GROUP, 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 65,867 shares
    Change vs previous 13F -9,098 shares

    0.03% of the 13F portfolio, value $31,563,467.

    13F-HR 0001595888-26-000043 filed by JANE STREET GROUP, LLC
    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 74,965 shares
    Change vs previous 13F -600,851 shares

    0.04% of the 13F portfolio, value $37,681,157.

    13F-HR 0001595888-26-000023 filed by JANE STREET GROUP, LLC
    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 675,816 shares
    Change vs previous 13F +672,510 shares

    0.4% of the 13F portfolio, value $339,759,736.

    13F-HR 0001595888-25-000155 filed by JANE STREET GROUP, LLC
    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 3,306 shares
    Change vs previous 13F -21,143 shares

    <0.01% of the 13F portfolio, value $1,605,955.

    13F-HR 0001595888-25-000117 filed by JANE STREET GROUP, LLC
    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/A 24,449 shares
    Change vs previous 13F -223,208 shares

    0.02% of the 13F portfolio, value $13,021,047.

    13F-HR/A 0001595888-25-000100 filed by JANE STREET GROUP, LLC
    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 247,657 shares
    Change vs previous 13F +212,013 shares

    0.18% of the 13F portfolio, value $112,257,965.

    13F-HR 0001595888-25-000068 filed by JANE STREET GROUP, LLC
    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 35,644 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $16,405,508.

    13F-HR 0001595888-24-000063 filed by JANE STREET GROUP, LLC
    Filed (acceptance time not in the bulk data set), ingested

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