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Disclosery

Asset Management One Co., Ltd.: BSX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Asset Management One Co., Ltd. on BSX, newest first. How the timeline and the estimate are built.

Asset Management One Co., Ltd. held 677,731 BSX 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 677,731 shares
    Change vs previous 13F -100,645 shares

    0.07% of the 13F portfolio, value $28,925,559.

    13F-HR 0001193125-26-318819 filed by Asset Management One Co., Ltd.
    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 778,376 shares
    Change vs previous 13F -100,729 shares

    0.14% of the 13F portfolio, value $48,843,094.

    13F-HR 0001193125-26-213217 filed by Asset Management One Co., Ltd.
    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 879,105 shares
    Change vs previous 13F +103,326 shares

    0.23% of the 13F portfolio, value $84,133,966.

    13F-HR 0001193125-26-023286 filed by Asset Management One Co., Ltd.
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-09-30
    13F 775,779 shares
    Change vs previous 13F +7,745 shares

    0.22% of the 13F portfolio, value $75,739,304.

    13F-HR 0001193125-25-245770 filed by Asset Management One Co., Ltd.
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-06-30
    13F 768,034 shares
    Change vs previous 13F +32,834 shares

    0.26% of the 13F portfolio, value $82,494,532.

    13F-HR 0000950123-25-006830 filed by Asset Management One Co., Ltd.
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-03-31
    13F 735,200 shares
    Change vs previous 13F +39,076 shares

    0.26% of the 13F portfolio, value $74,166,976.

    13F-HR 0000950123-25-003633 filed by Asset Management One Co., Ltd.
    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 696,124 shares
    Change vs previous 13F +53,471 shares

    0.22% of the 13F portfolio, value $63,089,646.

    13F-HR 0000950123-25-000714 filed by Asset Management One Co., Ltd.
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-09-30
    13F 642,653 shares
    Change vs previous 13F not available

    0.19% of the 13F portfolio, value $53,854,321.

    13F-HR 0000950123-24-010027 filed by Asset Management One Co., Ltd.
    Filed (acceptance time not in the bulk data set), ingested

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