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Disclosery

TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY: BIIB position timeline

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

TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY held 11,437 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 11,437 shares
    Change vs previous 13F 0 shares

    0.02% of the 13F portfolio, value $2,471,000.

    13F-HR 0000714142-26-000003 filed by TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY
    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 11,437 shares
    Change vs previous 13F 0 shares

    0.02% of the 13F portfolio, value $2,097,000.

    13F-HR 0000714142-26-000002 filed by TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY
    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 11,437 shares
    Change vs previous 13F 0 shares

    0.02% of the 13F portfolio, value $2,013,000.

    13F-HR 0000714142-26-000001 filed by TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY
    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 11,437 shares
    Change vs previous 13F 0 shares

    0.01% of the 13F portfolio, value $1,602,000.

    13F-HR 0000714142-25-000006 filed by TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY
    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 11,437 shares
    Change vs previous 13F +224 shares

    0.01% of the 13F portfolio, value $1,437,000.

    13F-HR 0000714142-25-000003 filed by TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY
    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 11,213 shares
    Change vs previous 13F +301 shares

    0.01% of the 13F portfolio, value $1,534,000.

    13F-HR 0000714142-25-000002 filed by TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY
    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 10,912 shares
    Change vs previous 13F 0 shares

    0.01% of the 13F portfolio, value $1,669,000.

    13F-HR 0000714142-25-000001 filed by TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY
    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 10,912 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $2,115,000.

    13F-HR 0000714142-24-000004 filed by TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY
    Filed (acceptance time not in the bulk data set), ingested

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