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Baldwin Investment Management, LLC: BRK-B position timeline

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

Baldwin Investment Management, LLC held 19,793 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-07-28.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 19,793 shares
    Change vs previous 13F +365 shares

    0.96% of the 13F portfolio, value $9,904,219.

    13F-HR 0001346378-26-000003 filed by Baldwin Investment 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 19,428 shares
    Change vs previous 13F +1,254 shares

    1.09% of the 13F portfolio, value $9,309,898.

    13F-HR 0001346378-26-000002 filed by Baldwin Investment 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 18,174 shares
    Change vs previous 13F -804 shares

    1.03% of the 13F portfolio, value $9,135,161.

    13F-HR 0001346378-26-000001 filed by Baldwin Investment 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 18,978 shares
    Change vs previous 13F +134 shares

    1.09% of the 13F portfolio, value $9,541,000.

    13F-HR 0001346378-25-000009 filed by Baldwin Investment 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 18,844 shares
    Change vs previous 13F -326 shares

    1.11% of the 13F portfolio, value $9,153,850.

    13F-HR 0001346378-25-000004 filed by Baldwin Investment 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 19,170 shares
    Change vs previous 13F +315 shares

    1.23% of the 13F portfolio, value $10,209,559.

    13F-HR 0001346378-25-000002 filed by Baldwin Investment 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 18,855 shares
    Change vs previous 13F -1,049 shares

    1.11% of the 13F portfolio, value $8,546,594.

    13F-HR 0001346378-25-000001 filed by Baldwin Investment Management, 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 19,904 shares
    Change vs previous 13F not available

    1.15% of the 13F portfolio, value $9,161,015.

    13F-HR 0001346378-24-000009 filed by Baldwin Investment Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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