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Disclosery

M1 Capital Management LLC: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of M1 Capital Management LLC on BRK-B, newest first. How the timeline and the estimate are built.

M1 Capital Management LLC held 3,287 BRK-B 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 3,287 shares
    Change vs previous 13F 0 shares

    0.61% of the 13F portfolio, value $1,644,782.

    13F-HR 0001976157-26-000004 filed by M1 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 3,287 shares
    Change vs previous 13F -147 shares

    0.73% of the 13F portfolio, value $1,575,130.

    13F-HR 0001976157-26-000002 filed by M1 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 3,434 shares
    Change vs previous 13F -200 shares

    0.72% of the 13F portfolio, value $1,726,100.

    13F-HR 0001976157-26-000001 filed by M1 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 3,634 shares
    Change vs previous 13F 0 shares

    0.79% of the 13F portfolio, value $1,826,957.

    13F-HR 0001976157-25-000008 filed by M1 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 3,634 shares
    Change vs previous 13F -550 shares

    0.89% of the 13F portfolio, value $1,765,288.

    13F-HR 0001976157-25-000004 filed by M1 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 4,184 shares
    Change vs previous 13F -25 shares

    1.39% of the 13F portfolio, value $2,228,315.

    13F-HR 0001976157-25-000003 filed by M1 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 4,209 shares
    Change vs previous 13F not available

    1.03% of the 13F portfolio, value $1,907,856.

    13F-HR 0001976157-25-000002 filed by M1 Capital Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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