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BECK MACK & OLIVER LLC: BRK-B position timeline

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

BECK MACK & OLIVER LLC held 88,039 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 88,039 shares
    Change vs previous 13F -1,039 shares

    0.86% of the 13F portfolio, value $44,053,980.

    13F-HR 0000010742-26-000013 filed by BECK MACK & OLIVER 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 89,078 shares
    Change vs previous 13F -3,089 shares

    0.88% of the 13F portfolio, value $42,686,317.

    13F-HR 0000010742-26-000005 filed by BECK MACK & OLIVER 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 92,167 shares
    Change vs previous 13F -1,447 shares

    0.84% of the 13F portfolio, value $46,327,888.

    13F-HR 0000010742-26-000002 filed by BECK MACK & OLIVER 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 93,614 shares
    Change vs previous 13F -1,011 shares

    0.86% of the 13F portfolio, value $47,063,648.

    13F-HR 0000010742-25-000021 filed by BECK MACK & OLIVER 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 94,625 shares
    Change vs previous 13F +3,104 shares

    0.88% of the 13F portfolio, value $45,966,127.

    13F-HR 0000010742-25-000016 filed by BECK MACK & OLIVER 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 91,521 shares
    Change vs previous 13F -25,265 shares

    0.97% of the 13F portfolio, value $48,742,409.

    13F-HR 0000010742-25-000008 filed by BECK MACK & OLIVER 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 116,786 shares
    Change vs previous 13F -5,693 shares

    0.98% of the 13F portfolio, value $52,936,890.

    13F-HR 0000010742-25-000002 filed by BECK MACK & OLIVER 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 122,479 shares
    Change vs previous 13F not available

    1.1% of the 13F portfolio, value $56,372,318.

    13F-HR 0000010742-24-000017 filed by BECK MACK & OLIVER LLC
    Filed (acceptance time not in the bulk data set), ingested

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