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Greenbrier Partners Capital Management, LLC: MKL position timeline

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

Greenbrier Partners Capital Management, LLC held 25,531 MKL shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 25,531 shares
    Change vs previous 13F -85 shares

    3.74% of the 13F portfolio, value $49,862,298.

    13F-HR 0001532262-26-000004 filed by Greenbrier Partners 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 25,616 shares
    Change vs previous 13F -962 shares

    3.78% of the 13F portfolio, value $49,030,817.

    13F-HR 0001532262-26-000003 filed by Greenbrier Partners 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 26,578 shares
    Change vs previous 13F -842 shares

    3.83% of the 13F portfolio, value $57,133,000.

    13F-HR 0001532262-26-000002 filed by Greenbrier Partners 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 27,420 shares
    Change vs previous 13F 0 shares

    3.55% of the 13F portfolio, value $52,409,491.

    13F-HR 0001532262-25-000007 filed by Greenbrier Partners 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 27,420 shares
    Change vs previous 13F 0 shares

    4.01% of the 13F portfolio, value $54,767,611.

    13F-HR 0001532262-25-000005 filed by Greenbrier Partners 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 27,420 shares
    Change vs previous 13F 0 shares

    4.01% of the 13F portfolio, value $51,264,706.

    13F-HR 0001535588-25-000005 filed by Greenbrier Partners 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 27,420 shares
    Change vs previous 13F 0 shares

    3.43% of the 13F portfolio, value $47,333,227.

    13F-HR 0001532262-25-000002 filed by Greenbrier Partners Capital 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 27,420 shares
    Change vs previous 13F not available

    3.42% of the 13F portfolio, value $45,289,340.

    13F-HR 0001532262-24-000006 filed by Greenbrier Partners Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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