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Disclosery

BCK Partners, Inc.: BRK-B position timeline

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

BCK Partners, Inc. held 1,974 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-07-20.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,974 shares
    Change vs previous 13F 0 shares

    0.48% of the 13F portfolio, value $987,770.

    13F-HR 0002085853-26-000766 filed by BCK Partners, Inc.
    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 1,974 shares
    Change vs previous 13F 0 shares

    0.51% of the 13F portfolio, value $945,941.

    13F-HR 0002085853-26-000506 filed by BCK Partners, Inc.
    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 1,974 shares
    Change vs previous 13F 0 shares

    0.54% of the 13F portfolio, value $992,231.

    13F-HR 0002085853-26-000131 filed by BCK Partners, Inc.
    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 1,974 shares
    Change vs previous 13F -1 shares

    0.53% of the 13F portfolio, value $992,409.

    13F-HR 0002085853-25-000179 filed by BCK Partners, Inc.
    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 1,975 shares
    Change vs previous 13F -56 shares

    0.56% of the 13F portfolio, value $959,396.

    13F-HR 0001667731-25-001008 filed by BCK Partners, Inc.
    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 2,031 shares
    Change vs previous 13F 0 shares

    0.67% of the 13F portfolio, value $1,081,670.

    13F-HR 0001667731-25-000525 filed by BCK Partners, Inc.
    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 2,031 shares
    Change vs previous 13F -769 shares

    0.56% of the 13F portfolio, value $920,612.

    13F-HR 0001667731-25-000172 filed by BCK Partners, Inc.
    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 2,800 shares
    Change vs previous 13F not available

    0.61% of the 13F portfolio, value $1,288,728.

    13F-HR 0001845867-24-000004 filed by BCK Partners, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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