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Disclosery

First Business Financial Services, Inc.: BRK-B position timeline

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

First Business Financial Services, Inc. held 2,838 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-07-28.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,838 shares
    Change vs previous 13F +639 shares

    0.11% of the 13F portfolio, value $1,420,107.

    13F-HR 0001140361-26-029854 filed by First Business Financial Services, 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 2,199 shares
    Change vs previous 13F +152 shares

    0.09% of the 13F portfolio, value $1,053,761.

    13F-HR 0001140361-26-018481 filed by First Business Financial Services, 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 2,047 shares
    Change vs previous 13F 0 shares

    0.09% of the 13F portfolio, value $1,028,925.

    13F-HR 0001140361-26-004002 filed by First Business Financial Services, 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 2,047 shares
    Change vs previous 13F -200 shares

    0.09% of the 13F portfolio, value $1,029,109.

    13F-HR 0001140361-25-039810 filed by First Business Financial Services, 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 2,247 shares
    Change vs previous 13F +75 shares

    0.1% of the 13F portfolio, value $1,091,525.

    13F-HR 0001140361-25-028130 filed by First Business Financial Services, 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 2,172 shares
    Change vs previous 13F +466 shares

    0.11% of the 13F portfolio, value $1,156,764.

    13F-HR 0001140361-25-017037 filed by First Business Financial Services, 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 1,706 shares
    Change vs previous 13F 0 shares

    0.08% of the 13F portfolio, value $773,296.

    13F-HR 0001140361-25-003418 filed by First Business Financial Services, 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 1,706 shares
    Change vs previous 13F not available

    0.08% of the 13F portfolio, value $785,204.

    13F-HR 0001140361-24-045361 filed by First Business Financial Services, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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