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STATE OF MICHIGAN RETIREMENT SYSTEM: BSX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of STATE OF MICHIGAN RETIREMENT SYSTEM on BSX, newest first. How the timeline and the estimate are built.

STATE OF MICHIGAN RETIREMENT SYSTEM held 380,608 BSX shares at 2026-06-30 per its 13F-HR filed 2026-07-30.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 380,608 shares
    Change vs previous 13F -6,800 shares

    0.07% of the 13F portfolio, value $16,244,349.

    13F-HR 0000762152-26-000012 filed by STATE OF MICHIGAN RETIREMENT SYSTEM
    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 387,408 shares
    Change vs previous 13F -700 shares

    0.13% of the 13F portfolio, value $24,309,852.

    13F-HR 0000762152-26-000009 filed by STATE OF MICHIGAN RETIREMENT SYSTEM
    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 388,108 shares
    Change vs previous 13F -12,600 shares

    0.18% of the 13F portfolio, value $37,006,098.

    13F-HR 0000762152-26-000007 filed by STATE OF MICHIGAN RETIREMENT SYSTEM
    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 400,708 shares
    Change vs previous 13F -1,600 shares

    0.19% of the 13F portfolio, value $39,121,122.

    13F-HR 0000762152-25-000014 filed by STATE OF MICHIGAN RETIREMENT SYSTEM
    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 402,308 shares
    Change vs previous 13F +2,500 shares

    0.22% of the 13F portfolio, value $43,211,902.

    13F-HR 0000762152-25-000008 filed by STATE OF MICHIGAN RETIREMENT SYSTEM
    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 399,808 shares
    Change vs previous 13F -200 shares

    0.23% of the 13F portfolio, value $40,332,631.

    13F-HR 0000762152-25-000005 filed by STATE OF MICHIGAN RETIREMENT SYSTEM
    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 400,008 shares
    Change vs previous 13F -1,000 shares

    0.19% of the 13F portfolio, value $35,728,715.

    13F-HR 0000762152-25-000003 filed by STATE OF MICHIGAN RETIREMENT SYSTEM
    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 401,008 shares
    Change vs previous 13F not available

    0.17% of the 13F portfolio, value $33,604,470.

    13F-HR 0000762152-24-000013 filed by STATE OF MICHIGAN RETIREMENT SYSTEM
    Filed (acceptance time not in the bulk data set), ingested

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