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Disclosery

BANK OF MONTREAL /CAN/: BIIB position timeline

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

BANK OF MONTREAL /CAN/ held 124,267 BIIB 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 124,267 shares
    Change vs previous 13F +31,558 shares

    0.01% of the 13F portfolio, value $26,849,128.

    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 92,709 shares
    Change vs previous 13F -20,975 shares

    0.01% of the 13F portfolio, value $16,996,342.

    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 113,684 shares
    Change vs previous 13F -11,571 shares

    0.01% of the 13F portfolio, value $20,007,247.

    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 125,255 shares
    Change vs previous 13F +21,941 shares

    0.01% of the 13F portfolio, value $17,545,721.

    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 103,314 shares
    Change vs previous 13F -29,654 shares

    0.01% of the 13F portfolio, value $12,975,206.

    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 132,968 shares
    Change vs previous 13F -78,368 shares

    0.01% of the 13F portfolio, value $18,195,341.

    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 211,336 shares
    Change vs previous 13F -8,575 shares

    0.02% of the 13F portfolio, value $32,317,501.

    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 219,911 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $42,810,073.

    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).