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Graham Holdings Co Master Retirement Trust: BRK-A position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Graham Holdings Co Master Retirement Trust on BRK-A, newest first. How the timeline and the estimate are built.

Graham Holdings Co Master Retirement Trust held 829 BRK-A 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 829 shares
    Change vs previous 13F 0 shares

    84.57% of the 13F portfolio, value $620,797,000.

    13F-HR 0001628280-26-057134 filed by Graham Holdings Co Master Retirement Trust
    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 829 shares
    Change vs previous 13F 0 shares

    84.28% of the 13F portfolio, value $595,338,000.

    13F-HR 0001628280-26-035588 filed by Graham Holdings Co Master Retirement Trust
    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 829 shares
    Change vs previous 13F 0 shares

    83.38% of the 13F portfolio, value $625,729,000.

    13F-HR 0001628280-26-008124 filed by Graham Holdings Co Master Retirement Trust
    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 829 shares
    Change vs previous 13F 0 shares

    84.94% of the 13F portfolio, value $625,232,000.

    13F-HR 0001628280-25-052373 filed by Graham Holdings Co Master Retirement Trust
    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 829 shares
    Change vs previous 13F 0 shares

    83.91% of the 13F portfolio, value $604,175,000.

    13F-HR 0001912699-25-000009 filed by Graham Holdings Co Master Retirement Trust
    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 829 shares
    Change vs previous 13F 0 shares

    85.92% of the 13F portfolio, value $661,908,000.

    13F-HR 0001912699-25-000006 filed by Graham Holdings Co Master Retirement Trust
    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 829 shares
    Change vs previous 13F 0 shares

    84.93% of the 13F portfolio, value $564,483,000.

    13F-HR 0001912699-25-000003 filed by Graham Holdings Co Master Retirement Trust
    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 829 shares
    Change vs previous 13F not available

    86.3% of the 13F portfolio, value $572,988,000.

    13F-HR 0001912699-24-000010 filed by Graham Holdings Co Master Retirement Trust
    Filed (acceptance time not in the bulk data set), ingested

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