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Disclosery

First Interstate Bank: BRK-B position timeline

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

First Interstate Bank held 21,694 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 21,694 shares
    Change vs previous 13F -159 shares

    0.57% of the 13F portfolio, value $10,855,460.

    13F-HR 0001125727-26-000014 filed by First Interstate 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 21,853 shares
    Change vs previous 13F -914 shares

    0.59% of the 13F portfolio, value $10,471,958.

    13F-HR 0001125727-26-000012 filed by First Interstate 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 22,767 shares
    Change vs previous 13F -622 shares

    0.61% of the 13F portfolio, value $11,443,833.

    13F-HR 0001125727-26-000009 filed by First Interstate 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 23,389 shares
    Change vs previous 13F +3,817 shares

    0.65% of the 13F portfolio, value $11,758,586.

    13F-HR 0001125727-25-000021 filed by First Interstate 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 19,572 shares
    Change vs previous 13F -1,279 shares

    0.56% of the 13F portfolio, value $9,507,490.

    13F-HR 0001125727-25-000015 filed by First Interstate 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 20,851 shares
    Change vs previous 13F -1,967 shares

    0.66% of the 13F portfolio, value $11,104,825.

    13F-HR 0001125727-25-000007 filed by First Interstate 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 22,818 shares
    Change vs previous 13F -696 shares

    0.63% of the 13F portfolio, value $10,342,943.

    13F-HR 0001125727-25-000003 filed by First Interstate 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 23,514 shares
    Change vs previous 13F not available

    0.66% of the 13F portfolio, value $10,822,553.

    13F-HR 0001125727-24-000021 filed by First Interstate Bank
    Filed (acceptance time not in the bulk data set), ingested

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