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Cambridge Investment Research Advisors, Inc.: BRK-B position timeline

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

Cambridge Investment Research Advisors, Inc. held 743,469 BRK-B shares at 2026-06-30 per its 13F-HR/A filed 2026-07-30.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F/A 743,469 shares
    Change vs previous 13F +1,592 shares

    0.83% of the 13F portfolio, value $372,024,000.

    13F-HR/A 0001419186-26-000006 filed by Cambridge Investment Research Advisors, Inc.
    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 741,877 shares
    Change vs previous 13F -45,581 shares

    0.92% of the 13F portfolio, value $355,507,000.

    13F-HR 0001419186-26-000003 filed by Cambridge Investment Research Advisors, Inc.
    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 787,458 shares
    Change vs previous 13F +33,153 shares

    1.05% of the 13F portfolio, value $395,816,000.

    13F-HR 0001419186-26-000001 filed by Cambridge Investment Research Advisors, Inc.
    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 754,305 shares
    Change vs previous 13F -12,255 shares

    1.04% of the 13F portfolio, value $379,219,000.

    13F-HR 0001419186-25-000008 filed by Cambridge Investment Research Advisors, Inc.
    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 766,560 shares
    Change vs previous 13F +67,102 shares

    1.13% of the 13F portfolio, value $372,372,000.

    13F-HR 0001419186-25-000006 filed by Cambridge Investment Research Advisors, Inc.
    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 699,458 shares
    Change vs previous 13F +13,058 shares

    1.26% of the 13F portfolio, value $372,517,000.

    13F-HR 0001419186-25-000004 filed by Cambridge Investment Research Advisors, Inc.
    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 686,400 shares
    Change vs previous 13F +7,923 shares

    1.04% of the 13F portfolio, value $311,131,000.

    13F-HR 0001419186-25-000003 filed by Cambridge Investment Research Advisors, Inc.
    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 678,477 shares
    Change vs previous 13F not available

    1.06% of the 13F portfolio, value $312,276,000.

    13F-HR 0001419186-24-000006 filed by Cambridge Investment Research Advisors, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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