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Manitou Investment Management Ltd.: BRK-B position timeline

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

Manitou Investment Management Ltd. held 160,790 BRK-B shares at 2026-09-30 per its 13F-HR filed 2026-10-15.

the latest 13F is the newest step

  1. period ended2026-09-30
    13F 160,790 shares
    Change vs previous 13F -8,466 shares

    15.06% of the 13F portfolio, value $80,065,380.

    13F-HR 0001062993-26-005359 filed by Manitou Investment Management Ltd.
    Accepted , ingested

  2. period ended2026-06-30
    13F 169,256 shares
    Change vs previous 13F +1,173 shares

    15.74% of the 13F portfolio, value $84,694,010.

    13F-HR 0001062993-26-003526 filed by Manitou Investment Management Ltd.
    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 168,083 shares
    Change vs previous 13F -917 shares

    15.93% of the 13F portfolio, value $80,545,374.

    13F-HR 0001062993-26-002053 filed by Manitou Investment Management Ltd.
    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 169,000 shares
    Change vs previous 13F +105 shares

    14.88% of the 13F portfolio, value $84,947,850.

    13F-HR 0001062993-26-000755 filed by Manitou Investment Management Ltd.
    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 168,895 shares
    Change vs previous 13F -1,922 shares

    14.81% of the 13F portfolio, value $84,910,272.

    13F-HR 0001062993-25-016163 filed by Manitou Investment Management Ltd.
    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 170,817 shares
    Change vs previous 13F +3,165 shares

    15.78% of the 13F portfolio, value $82,977,774.

    13F-HR 0001062993-25-013153 filed by Manitou Investment Management Ltd.
    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 167,652 shares
    Change vs previous 13F +7,273 shares

    17.36% of the 13F portfolio, value $89,288,102.

    13F-HR 0001062993-25-007486 filed by Manitou Investment Management Ltd.
    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 160,379 shares
    Change vs previous 13F not available

    14.36% of the 13F portfolio, value $72,696,593.

    13F-HR 0001062993-25-000918 filed by Manitou Investment Management Ltd.
    Filed (acceptance time not in the bulk data set), ingested

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