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Councilmark Asset Management, LLC: BRK-B position timeline

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

Councilmark Asset Management, LLC held 18,081 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 18,081 shares
    Change vs previous 13F +28 shares

    4.79% of the 13F portfolio, value $9,047,552.

    13F-HR 0002022076-26-000003 filed by Councilmark 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 18,053 shares
    Change vs previous 13F -16 shares

    4.96% of the 13F portfolio, value $8,650,998.

    13F-HR 0002022076-26-000002 filed by Councilmark 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 18,069 shares
    Change vs previous 13F -183 shares

    5.08% of the 13F portfolio, value $9,082,383.

    13F-HR 0002022076-26-000001 filed by Councilmark 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 18,252 shares
    Change vs previous 13F -50 shares

    5.26% of the 13F portfolio, value $9,176,010.

    13F-HR 0002022076-25-000006 filed by Councilmark 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 18,302 shares
    Change vs previous 13F +24 shares

    5.63% of the 13F portfolio, value $8,890,563.

    13F-HR 0002022076-25-000003 filed by Councilmark 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 18,278 shares
    Change vs previous 13F -35 shares

    6.57% of the 13F portfolio, value $9,734,497.

    13F-HR 0002022076-25-000002 filed by Councilmark 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 18,313 shares
    Change vs previous 13F +66 shares

    5.58% of the 13F portfolio, value $8,300,917.

    13F-HR 0002022076-25-000001 filed by Councilmark 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 18,247 shares
    Change vs previous 13F not available

    5.64% of the 13F portfolio, value $8,398,364.

    13F-HR 0002022076-24-000004 filed by Councilmark Asset Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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