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California Public Employees Retirement System: BIIB position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of California Public Employees Retirement System on BIIB, newest first. How the timeline and the estimate are built.

California Public Employees Retirement System held 329,106 BIIB shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 329,106 shares
    Change vs previous 13F -11,797 shares

    0.04% of the 13F portfolio, value $71,106,642.

    13F-HR 0000919079-26-000011 filed by California Public Employees 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 340,903 shares
    Change vs previous 13F +10,097 shares

    0.04% of the 13F portfolio, value $62,497,747.

    13F-HR 0000919079-26-000006 filed by California Public Employees 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 330,806 shares
    Change vs previous 13F -12,980 shares

    0.03% of the 13F portfolio, value $58,218,548.

    13F-HR 0000919079-26-000003 filed by California Public Employees 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 343,786 shares
    Change vs previous 13F +4,736 shares

    0.03% of the 13F portfolio, value $48,157,543.

    13F-HR 0000919079-25-000012 filed by California Public Employees 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 339,050 shares
    Change vs previous 13F -46,044 shares

    0.03% of the 13F portfolio, value $42,581,290.

    13F-HR 0000919079-25-000010 filed by California Public Employees 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 385,094 shares
    Change vs previous 13F -12,755 shares

    0.04% of the 13F portfolio, value $52,696,263.

    13F-HR 0000919079-25-000007 filed by California Public Employees 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/A 397,849 shares
    Change vs previous 13F +2,778 shares

    0.04% of the 13F portfolio, value $60,839,069.

    13F-HR/A 0000919079-25-000004 filed by California Public Employees 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 395,071 shares
    Change vs previous 13F not available

    0.05% of the 13F portfolio, value $76,580,563.

    13F-HR 0000919079-24-000014 filed by California Public Employees Retirement System
    Filed (acceptance time not in the bulk data set), ingested

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