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Disclosery

FIRST MANHATTAN CO. LLC.: BRK-B position timeline

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

FIRST MANHATTAN CO. LLC. held 1,777,769 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 1,777,769 shares
    Change vs previous 13F -25,831 shares

    2.27% of the 13F portfolio, value $889,577,830.

    13F-HR 0000728083-26-000007 filed by FIRST MANHATTAN CO. 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 1,803,600 shares
    Change vs previous 13F -50,955 shares

    2.4% of the 13F portfolio, value $864,285,120.

    13F-HR 0000728083-26-000005 filed by FIRST MANHATTAN CO. 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 1,854,555 shares
    Change vs previous 13F -15,888 shares

    2.45% of the 13F portfolio, value $932,192,071.

    13F-HR 0000728083-26-000002 filed by FIRST MANHATTAN CO. 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 1,870,443 shares
    Change vs previous 13F -12,864 shares

    2.48% of the 13F portfolio, value $940,346,514.

    13F-HR 0000728083-25-000015 filed by FIRST MANHATTAN CO. 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 1,883,307 shares
    Change vs previous 13F -49,655 shares

    2.58% of the 13F portfolio, value $914,854,041.

    13F-HR 0000728083-25-000010 filed by FIRST MANHATTAN CO. 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 1,932,962 shares
    Change vs previous 13F +26,508 shares

    3% of the 13F portfolio, value $1,029,456,902.

    13F-HR 0001750312-25-000007 filed by FIRST MANHATTAN CO. 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 1,906,454 shares
    Change vs previous 13F -39,229 shares

    2.55% of the 13F portfolio, value $868,721,999.

    13F-HR 0000728083-25-000003 filed by FIRST MANHATTAN CO. 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 1,945,683 shares
    Change vs previous 13F not available

    2.66% of the 13F portfolio, value $895,520,058.

    13F-HR 0001172661-24-004939 filed by FIRST MANHATTAN CO. LLC.
    Filed (acceptance time not in the bulk data set), ingested

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