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CORNERSTONE ADVISORS ASSET MANAGEMENT, LLC: BRK-B position timeline

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

CORNERSTONE ADVISORS ASSET MANAGEMENT, LLC held 2,676 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,676 shares
    Change vs previous 13F +10 shares

    0.18% of the 13F portfolio, value $1,339,044.

    13F-HR 0002044324-26-000005 filed by CORNERSTONE ADVISORS ASSET 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 2,666 shares
    Change vs previous 13F +5 shares

    0.2% of the 13F portfolio, value $1,277,547.

    13F-HR 0002044324-26-000004 filed by CORNERSTONE ADVISORS ASSET 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 2,661 shares
    Change vs previous 13F +450 shares

    0.22% of the 13F portfolio, value $1,337,552.

    13F-HR 0002044324-26-000001 filed by CORNERSTONE ADVISORS ASSET 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 2,211 shares
    Change vs previous 13F -2 shares

    0.19% of the 13F portfolio, value $1,111,558.

    13F-HR 0002044324-25-000012 filed by CORNERSTONE ADVISORS ASSET 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 2,213 shares
    Change vs previous 13F +99 shares

    0.21% of the 13F portfolio, value $1,075,009.

    13F-HR 0002044324-25-000007 filed by CORNERSTONE ADVISORS ASSET 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 2,114 shares
    Change vs previous 13F +110 shares

    0.23% of the 13F portfolio, value $1,125,874.

    13F-HR 0002044324-25-000002 filed by CORNERSTONE ADVISORS ASSET 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 2,004 shares
    Change vs previous 13F +134 shares

    0.2% of the 13F portfolio, value $908,373.

    13F-HR 0002044324-25-000001 filed by CORNERSTONE ADVISORS ASSET 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 1,870 shares
    Change vs previous 13F not available

    0.19% of the 13F portfolio, value $860,686.

    13F-HR 0001799964-24-000006 filed by CORNERSTONE ADVISORS ASSET MANAGEMENT, LLC
    Filed (acceptance time not in the bulk data set), ingested

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