Skip to content
Disclosery

Mesirow Financial Investment Management, Inc.: BRK-B position timeline

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

Mesirow Financial Investment Management, Inc. held 980,399 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-07-22.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 980,399 shares
    Change vs previous 13F +3,710 shares

    7.71% of the 13F portfolio, value $490,579,109.

    13F-HR 0001469475-26-000004 filed by Mesirow Financial Investment Management, 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 976,689 shares
    Change vs previous 13F +164,260 shares

    7.58% of the 13F portfolio, value $468,026,112.

    13F-HR 0001469475-26-000002 filed by Mesirow Financial Investment Management, 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 812,429 shares
    Change vs previous 13F -151,467 shares

    8.39% of the 13F portfolio, value $408,364,632.

    13F-HR 0001469475-26-000001 filed by Mesirow Financial Investment Management, 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 963,896 shares
    Change vs previous 13F +9,587 shares

    8.67% of the 13F portfolio, value $484,584,239.

    13F-HR 0001469475-25-000002 filed by Mesirow Financial Investment Management, 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 954,309 shares
    Change vs previous 13F +11,579 shares

    9.04% of the 13F portfolio, value $463,570,922.

    13F-HR 0001085146-25-004477 filed by Mesirow Financial Investment Management, 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 942,730 shares
    Change vs previous 13F -3,468 shares

    9.73% of the 13F portfolio, value $502,074,711.

    13F-HR 0001085146-25-002744 filed by Mesirow Financial Investment Management, 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 946,198 shares
    Change vs previous 13F +4,472 shares

    8.52% of the 13F portfolio, value $428,888,528.

    13F-HR 0001085146-25-000865 filed by Mesirow Financial Investment Management, 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 941,726 shares
    Change vs previous 13F not available

    8.39% of the 13F portfolio, value $433,434,921.

    13F-HR 0001085146-24-005312 filed by Mesirow Financial Investment Management, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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