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Retirement Systems of Alabama: BIIB position timeline

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

Retirement Systems of Alabama held 31,015 BIIB 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 31,015 shares
    Change vs previous 13F -151 shares

    0.02% of the 13F portfolio, value $6,701,101.

    13F-HR 0001140361-26-029874 filed by Retirement Systems of Alabama
    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 31,166 shares
    Change vs previous 13F -44 shares

    0.02% of the 13F portfolio, value $5,713,663.

    13F-HR 0001140361-26-016605 filed by Retirement Systems of Alabama
    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 31,210 shares
    Change vs previous 13F -65 shares

    0.02% of the 13F portfolio, value $5,492,648.

    13F-HR 0001140361-26-001270 filed by Retirement Systems of Alabama
    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 31,275 shares
    Change vs previous 13F -167 shares

    0.01% of the 13F portfolio, value $4,381,002.

    13F-HR 0001140361-25-039965 filed by Retirement Systems of Alabama
    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 31,442 shares
    Change vs previous 13F -152,109 shares

    0.01% of the 13F portfolio, value $3,948,801.

    13F-HR 0001140361-25-028518 filed by Retirement Systems of Alabama
    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 183,551 shares
    Change vs previous 13F -1,832 shares

    0.1% of the 13F portfolio, value $25,117,119.

    13F-HR 0001140361-25-014739 filed by Retirement Systems of Alabama
    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 185,383 shares
    Change vs previous 13F +154,062 shares

    0.11% of the 13F portfolio, value $28,348,768.

    13F-HR 0001140361-25-001981 filed by Retirement Systems of Alabama
    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 31,321 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $6,071,263.

    13F-HR 0001140361-24-048588 filed by Retirement Systems of Alabama
    Filed (acceptance time not in the bulk data set), ingested

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