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RENAISSANCE TECHNOLOGIES LLC: BRK-B position timeline

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

RENAISSANCE TECHNOLOGIES LLC held 1,791 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,791 shares
    Change vs previous 13F +69 shares

    <0.01% of the 13F portfolio, value $892,454.

    13F-HR 0001037389-26-000059 filed by RENAISSANCE TECHNOLOGIES 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 1,722 shares
    Change vs previous 13F -250,466 shares

    <0.01% of the 13F portfolio, value $824,942.

    13F-HR 0001037389-26-000033 filed by RENAISSANCE TECHNOLOGIES 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 252,188 shares
    Change vs previous 13F +249,133 shares

    0.2% of the 13F portfolio, value $126,757,442.

    13F-HR 0001037389-26-000023 filed by RENAISSANCE TECHNOLOGIES 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 3,055 shares
    Change vs previous 13F -213 shares

    <0.01% of the 13F portfolio, value $1,537,814.

    13F-HR 0001037389-25-000064 filed by RENAISSANCE TECHNOLOGIES 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 3,268 shares
    Change vs previous 13F +1,232 shares

    <0.01% of the 13F portfolio, value $1,586,270.

    13F-HR 0001037389-25-000034 filed by RENAISSANCE TECHNOLOGIES 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 2,036 shares
    Change vs previous 13F -234 shares

    <0.01% of the 13F portfolio, value $1,086,184.

    13F-HR 0001037389-25-000023 filed by RENAISSANCE TECHNOLOGIES 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 2,270 shares
    Change vs previous 13F -220,245 shares

    <0.01% of the 13F portfolio, value $1,031,956.

    13F-HR 0001037389-25-000009 filed by RENAISSANCE TECHNOLOGIES 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 222,515 shares
    Change vs previous 13F not available

    0.15% of the 13F portfolio, value $102,413,748.

    13F-HR 0001037389-24-000091 filed by RENAISSANCE TECHNOLOGIES LLC
    Filed (acceptance time not in the bulk data set), ingested

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