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Disclosery

Kidder Stephen W: BRK-B position timeline

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

Kidder Stephen W held 3,666 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-21.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 3,666 shares
    Change vs previous 13F 0 shares

    0.46% of the 13F portfolio, value $1,834,430.

    13F-HR 0001314377-26-000008 filed by Kidder Stephen W
    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 3,666 shares
    Change vs previous 13F -175 shares

    0.52% of the 13F portfolio, value $1,756,748.

    13F-HR 0001314377-26-000007 filed by Kidder Stephen W
    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 3,841 shares
    Change vs previous 13F 0 shares

    0.54% of the 13F portfolio, value $1,930,678.

    13F-HR 0001314377-26-000001 filed by Kidder Stephen W
    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 3,841 shares
    Change vs previous 13F -75 shares

    0.55% of the 13F portfolio, value $1,931,024.

    13F-HR 0001314377-25-000003 filed by Kidder Stephen W
    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 3,916 shares
    Change vs previous 13F -226 shares

    0.57% of the 13F portfolio, value $1,902,276.

    13F-HR 0001314376-25-000004 filed by Kidder Stephen W
    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 4,142 shares
    Change vs previous 13F -50 shares

    0.69% of the 13F portfolio, value $2,205,946.

    13F-HR 0001215208-25-000002 filed by Kidder Stephen W
    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 4,192 shares
    Change vs previous 13F 0 shares

    0.57% of the 13F portfolio, value $1,900,150.

    13F-HR 0001494234-25-000006 filed by Kidder Stephen W
    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 4,192 shares
    Change vs previous 13F not available

    0.57% of the 13F portfolio, value $1,929,410.

    13F-HR 0001053914-24-000006 filed by Kidder Stephen W
    Filed (acceptance time not in the bulk data set), ingested

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