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Disclosery

Columbia Bank: BRK-B position timeline

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

Columbia Bank held 3,401 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-07-24.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 3,401 shares
    Change vs previous 13F +166 shares

    0.38% of the 13F portfolio, value $1,701,826.

    13F-HR 0002017259-26-000007 filed by Columbia Bank
    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 3,235 shares
    Change vs previous 13F -28 shares

    0.44% of the 13F portfolio, value $1,550,212.

    13F-HR 0002017259-26-000005 filed by Columbia Bank
    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 3,263 shares
    Change vs previous 13F +261 shares

    0.46% of the 13F portfolio, value $1,640,147.

    13F-HR 0002017259-26-000003 filed by Columbia Bank
    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 3,002 shares
    Change vs previous 13F -9 shares

    0.42% of the 13F portfolio, value $1,490,162.

    13F-HR 0002017259-25-000027 filed by Columbia Bank
    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 3,011 shares
    Change vs previous 13F -866 shares

    0.44% of the 13F portfolio, value $1,437,662.

    13F-HR 0002017259-25-000014 filed by Columbia Bank
    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 3,877 shares
    Change vs previous 13F +137 shares

    0.71% of the 13F portfolio, value $2,064,813.

    13F-HR 0002017259-25-000008 filed by Columbia Bank
    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 3,740 shares
    Change vs previous 13F +113 shares

    0.58% of the 13F portfolio, value $1,683,112.

    13F-HR 0002017259-25-000003 filed by Columbia Bank
    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 3,627 shares
    Change vs previous 13F not available

    0.61% of the 13F portfolio, value $1,669,363.

    13F-HR 0002017259-24-000056 filed by Columbia Bank
    Filed (acceptance time not in the bulk data set), ingested

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