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Warwick Investment Management, Inc.: BRK-B position timeline

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

Warwick Investment Management, Inc. held 2,820 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-07-31.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,820 shares
    Change vs previous 13F +146 shares

    0.16% of the 13F portfolio, value $1,411,001.

    13F-HR 0002063364-26-000252 filed by Warwick Investment Management, Inc.
    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 2,674 shares
    Change vs previous 13F +138 shares

    0.19% of the 13F portfolio, value $1,281,286.

    13F-HR 0002063364-26-000155 filed by Warwick Investment Management, Inc.
    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 2,536 shares
    Change vs previous 13F +126 shares

    0.2% of the 13F portfolio, value $1,274,720.

    13F-HR 0001754960-26-000079 filed by Warwick Investment Management, Inc.
    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 2,410 shares
    Change vs previous 13F +155 shares

    0.21% of the 13F portfolio, value $1,211,603.

    13F-HR 0001754960-25-000712 filed by Warwick Investment Management, Inc.
    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 2,255 shares
    Change vs previous 13F -75 shares

    0.21% of the 13F portfolio, value $1,095,411.

    13F-HR 0001754960-25-000445 filed by Warwick Investment Management, Inc.
    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 2,330 shares
    Change vs previous 13F +383 shares

    0.26% of the 13F portfolio, value $1,240,807.

    13F-HR 0001085146-25-003155 filed by Warwick Investment Management, Inc.
    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 1,947 shares
    Change vs previous 13F -509 shares

    0.18% of the 13F portfolio, value $882,447.

    13F-HR 0001085146-25-000917 filed by Warwick Investment Management, Inc.
    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 2,456 shares
    Change vs previous 13F not available

    0.27% of the 13F portfolio, value $1,130,308.

    13F-HR 0001085146-24-005330 filed by Warwick Investment Management, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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