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Disclosery

ACT Advisors, LLC.: BRK-B position timeline

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

ACT Advisors, LLC. held 848 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-07-22.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 848 shares
    Change vs previous 13F +46 shares

    0.14% of the 13F portfolio, value $424,331.

    13F-HR 0001842554-26-000004 filed by ACT Advisors, 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 802 shares
    Change vs previous 13F +2 shares

    0.16% of the 13F portfolio, value $384,318.

    13F-HR 0001842554-26-000003 filed by ACT Advisors, 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 800 shares
    Change vs previous 13F +23 shares

    0.16% of the 13F portfolio, value $402,120.

    13F-HR 0001842554-26-000001 filed by ACT Advisors, 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 777 shares
    Change vs previous 13F -41 shares

    0.16% of the 13F portfolio, value $390,629.

    13F-HR 0001842554-25-000010 filed by ACT Advisors, 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 818 shares
    Change vs previous 13F +24 shares

    0.18% of the 13F portfolio, value $397,360.

    13F-HR 0001842554-25-000006 filed by ACT Advisors, 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 794 shares
    Change vs previous 13F 0 shares

    0.23% of the 13F portfolio, value $422,869.

    13F-HR 0001842554-25-000003 filed by ACT Advisors, 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 794 shares
    Change vs previous 13F -103 shares

    0.19% of the 13F portfolio, value $359,904.

    13F-HR 0001842554-25-000001 filed by ACT Advisors, 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 897 shares
    Change vs previous 13F not available

    0.19% of the 13F portfolio, value $412,853.

    13F-HR 0001842554-24-000006 filed by ACT Advisors, LLC.
    Filed (acceptance time not in the bulk data set), ingested

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