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Madison Asset Management, LLC: BRK-B position timeline

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

Madison Asset Management, LLC held 27,243 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-10.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 27,243 shares
    Change vs previous 13F -1,132 shares

    0.16% of the 13F portfolio, value $13,632,290.

    13F-HR 0001954889-26-000022 filed by Madison Asset Management, 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 28,375 shares
    Change vs previous 13F -2,433 shares

    0.17% of the 13F portfolio, value $13,597,204.

    13F-HR 0001954889-26-000018 filed by Madison Asset Management, 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 30,808 shares
    Change vs previous 13F -1,083 shares

    0.18% of the 13F portfolio, value $15,485,772.

    13F-HR 0001954889-26-000008 filed by Madison Asset Management, 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 31,891 shares
    Change vs previous 13F -6,865 shares

    0.18% of the 13F portfolio, value $16,032,680.

    13F-HR 0001954889-25-000033 filed by Madison Asset Management, 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 38,756 shares
    Change vs previous 13F -202,893 shares

    0.2% of the 13F portfolio, value $18,826,318.

    13F-HR 0001954889-25-000027 filed by Madison Asset Management, 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 241,649 shares
    Change vs previous 13F -249,309 shares

    1.43% of the 13F portfolio, value $128,697,456.

    13F-HR 0001954889-25-000019 filed by Madison Asset Management, 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/A 490,958 shares
    Change vs previous 13F +243,386 shares

    1.26% of the 13F portfolio, value $222,541,124.

    13F-HR 0001954889-25-000006 filed by Madison Asset Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • Madison Asset Management, LLC: 245,479 shares
    • Madison Investment Advisors, LLC: 245,479 shares

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

  8. period ended2024-09-30
    13F 247,572 shares
    Change vs previous 13F not available

    1.28% of the 13F portfolio, value $113,947,528.

    13F-HR 0001954889-24-000003 filed by Madison Asset Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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