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Disclosery

BANK OF MONTREAL /CAN/: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BANK OF MONTREAL /CAN/ on BRK-B, newest first. How the timeline and the estimate are built.

BANK OF MONTREAL /CAN/ held 2,612,621 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,612,621 shares
    Change vs previous 13F +111,767 shares

    0.48% of the 13F portfolio, value $1,307,329,658.

    13F-HR 0000927971-26-000090 filed by BANK OF MONTREAL /CAN/
    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 2,500,854 shares
    Change vs previous 13F -340,486 shares

    0.5% of the 13F portfolio, value $1,198,409,460.

    13F-HR 0000927971-26-000078 filed by BANK OF MONTREAL /CAN/
    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 2,841,340 shares
    Change vs previous 13F +261,559 shares

    0.57% of the 13F portfolio, value $1,428,199,786.

    13F-HR 0000927971-26-000035 filed by BANK OF MONTREAL /CAN/
    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 2,579,781 shares
    Change vs previous 13F +233,384 shares

    0.53% of the 13F portfolio, value $1,296,959,334.

    13F-HR 0000927971-25-000027 filed by BANK OF MONTREAL /CAN/
    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 2,346,397 shares
    Change vs previous 13F -277,769 shares

    0.57% of the 13F portfolio, value $1,139,809,498.

    13F-HR 0000927971-25-000018 filed by BANK OF MONTREAL /CAN/
    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 2,624,166 shares
    Change vs previous 13F -267,213 shares

    0.73% of the 13F portfolio, value $1,397,578,577.

    13F-HR 0000927971-25-000015 filed by BANK OF MONTREAL /CAN/
    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 2,891,379 shares
    Change vs previous 13F -625,203 shares

    0.65% of the 13F portfolio, value $1,310,604,485.

    13F-HR 0000927971-25-000008 filed by BANK OF MONTREAL /CAN/
    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 3,516,582 shares
    Change vs previous 13F not available

    0.75% of the 13F portfolio, value $1,608,730,981.

    13F-HR 0000927971-24-000013 filed by BANK OF MONTREAL /CAN/
    Filed (acceptance time not in the bulk data set), ingested

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