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Disclosery

Custos Family Office, LLC: BRK-B position timeline

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

Custos Family Office, LLC held 730 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-19.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 730 shares
    Change vs previous 13F -217 shares

    0.22% of the 13F portfolio, value $365,285.

    13F-HR 0001904423-26-000004 filed by Custos Family Office, 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 947 shares
    Change vs previous 13F +70 shares

    0.31% of the 13F portfolio, value $453,802.

    13F-HR 0001904423-26-000005 filed by Custos Family Office, 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 877 shares
    Change vs previous 13F 0 shares

    0.3% of the 13F portfolio, value $440,824.

    13F-HR 0001904423-26-000001 filed by Custos Family Office, 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 877 shares
    Change vs previous 13F +99 shares

    0.25% of the 13F portfolio, value $440,903.

    13F-HR 0001904423-25-000007 filed by Custos Family Office, 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 778 shares
    Change vs previous 13F +119 shares

    0.12% of the 13F portfolio, value $377,929.

    13F-HR 0001904423-25-000005 filed by Custos Family Office, 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 659 shares
    Change vs previous 13F +54 shares

    0.12% of the 13F portfolio, value $350,970.

    13F-HR 0001904423-25-000004 filed by Custos Family Office, 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 605 shares
    Change vs previous 13F not available

    0.1% of the 13F portfolio, value $274,234.

    13F-HR 0001904423-25-000001 filed by Custos Family Office, LLC
    Filed (acceptance time not in the bulk data set), ingested

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