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Warburton Capital Management, LLC: BRK-B position timeline

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

Warburton Capital Management, LLC held 2,846 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-03.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,846 shares
    Change vs previous 13F +8 shares

    0.58% of the 13F portfolio, value $1,424,000.

    13F-HR 0002054795-26-000003 filed by Warburton Capital 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 2,838 shares
    Change vs previous 13F +85 shares

    0.67% of the 13F portfolio, value $1,376,000.

    13F-HR 0002054795-26-000002 filed by Warburton Capital 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 2,753 shares
    Change vs previous 13F +1 shares

    0.78% of the 13F portfolio, value $1,383,000.

    13F-HR 0002054795-26-000001 filed by Warburton Capital 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 2,752 shares
    Change vs previous 13F +40 shares

    0.83% of the 13F portfolio, value $1,371,000.

    13F-HR 0002054795-25-000002 filed by Warburton Capital 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 2,712 shares
    Change vs previous 13F +504 shares

    0.77% of the 13F portfolio, value $1,292,000.

    13F-HR 0001908380-25-000009 filed by Warburton Capital 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 2,208 shares
    Change vs previous 13F +169 shares

    0.85% of the 13F portfolio, value $1,175,000.

    13F-HR 0001842974-25-000010 filed by Warburton Capital 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 2,039 shares
    Change vs previous 13F not available

    0.69% of the 13F portfolio, value $924,000.

    13F-HR 0001800586-25-000005 filed by Warburton Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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