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Disclosery

Czech National Bank: BRK-B position timeline

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

Czech National Bank held 535,117 BRK-B shares at 2026-09-30 per its 13F-HR filed 2026-10-13.

the latest 13F is the newest step

  1. period ended2026-09-30
    13F 535,117 shares
    Change vs previous 13F +13,282 shares

    1.41% of the 13F portfolio, value $266,461,510.

    13F-HR 0001908923-26-000004 filed by Czech National Bank
    Accepted , ingested

  2. period ended2026-06-30
    13F 521,835 shares
    Change vs previous 13F +22,425 shares

    1.42% of the 13F portfolio, value $261,121,016.

    13F-HR 0001908923-26-000003 filed by Czech National Bank
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2026-03-31
    13F 499,410 shares
    Change vs previous 13F +15,882 shares

    1.57% of the 13F portfolio, value $239,317,272.

    13F-HR 0001908923-26-000002 filed by Czech National Bank
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-12-31
    13F 483,528 shares
    Change vs previous 13F +17,797 shares

    1.58% of the 13F portfolio, value $243,045,349.

    13F-HR 0001908923-26-000001 filed by Czech National Bank
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-09-30
    13F 465,731 shares
    Change vs previous 13F +17,502 shares

    1.62% of the 13F portfolio, value $234,141,603.

    13F-HR 0001908923-25-000005 filed by Czech National Bank
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-06-30
    13F 448,229 shares
    Change vs previous 13F +27,229 shares

    1.7% of the 13F portfolio, value $217,736,201.

    13F-HR 0001908923-25-000004 filed by Czech National Bank
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2025-03-31
    13F 421,000 shares
    Change vs previous 13F +23,580 shares

    2.05% of the 13F portfolio, value $224,216,180.

    13F-HR 0001908923-25-000002 filed by Czech National Bank
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-12-31
    13F 397,420 shares
    Change vs previous 13F not available

    1.67% of the 13F portfolio, value $180,142,538.

    13F-HR 0001908923-25-000001 filed by Czech National Bank
    Filed (acceptance time not in the bulk data set), ingested

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