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Disclosery

Zurcher Kantonalbank (Zurich Cantonalbank): BSX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Zurcher Kantonalbank (Zurich Cantonalbank) on BSX, newest first. How the timeline and the estimate are built.

Zurcher Kantonalbank (Zurich Cantonalbank) held 950,900 BSX 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 950,900 shares
    Change vs previous 13F -840,249 shares

    0.08% of the 13F portfolio, value $40,584,412.

    13F-HR 0001368163-26-000004 filed by Zurcher Kantonalbank (Zurich Cantonalbank)
    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 1,791,149 shares
    Change vs previous 13F +60,784 shares

    0.24% of the 13F portfolio, value $112,394,600.

    13F-HR 0001368163-26-000002 filed by Zurcher Kantonalbank (Zurich Cantonalbank)
    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 1,730,365 shares
    Change vs previous 13F -135,917 shares

    0.36% of the 13F portfolio, value $164,990,303.

    13F-HR 0000947871-26-000067 filed by Zurcher Kantonalbank (Zurich Cantonalbank)
    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 1,866,282 shares
    Change vs previous 13F +50,938 shares

    0.42% of the 13F portfolio, value $182,205,112.

    13F-HR 0000947871-25-001007 filed by Zurcher Kantonalbank (Zurich Cantonalbank)
    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 1,815,344 shares
    Change vs previous 13F +495,346 shares

    0.48% of the 13F portfolio, value $194,986,099.

    13F-HR 0000947871-25-000725 filed by Zurcher Kantonalbank (Zurich Cantonalbank)
    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 1,319,998 shares
    Change vs previous 13F +27,572 shares

    0.38% of the 13F portfolio, value $133,161,398.

    13F-HR 0000947871-25-000457 filed by Zurcher Kantonalbank (Zurich Cantonalbank)
    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 1,292,426 shares
    Change vs previous 13F +20,726 shares

    0.33% of the 13F portfolio, value $115,439,490.

    13F-HR 0000947871-25-000115 filed by Zurcher Kantonalbank (Zurich Cantonalbank)
    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/A 1,271,700 shares
    Change vs previous 13F not available

    0.32% of the 13F portfolio, value $106,568,460.

    13F-HR/A 0000947871-24-000889 filed by Zurcher Kantonalbank (Zurich Cantonalbank)
    Filed (acceptance time not in the bulk data set), ingested

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