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DIMENSIONAL FUND ADVISORS LP: BIIB position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of DIMENSIONAL FUND ADVISORS LP on BIIB, newest first. How the timeline and the estimate are built.

DIMENSIONAL FUND ADVISORS LP held 1,148,568 BIIB shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,148,568 shares
    Change vs previous 13F +69,449 shares

    0.04% of the 13F portfolio, value $248,165,892.

    13F-HR 0000354204-26-000866 filed by DIMENSIONAL FUND ADVISORS LP
    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 1,079,119 shares
    Change vs previous 13F +118,474 shares

    0.04% of the 13F portfolio, value $197,881,455.

    13F-HR 0000354204-26-000581 filed by DIMENSIONAL FUND ADVISORS LP
    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 960,645 shares
    Change vs previous 13F +87,551 shares

    0.04% of the 13F portfolio, value $169,066,216.

    13F-HR 0000354204-26-000347 filed by DIMENSIONAL FUND ADVISORS LP
    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 873,094 shares
    Change vs previous 13F -55,402 shares

    0.03% of the 13F portfolio, value $122,293,283.

    13F-HR 0000354204-25-001337 filed by DIMENSIONAL FUND ADVISORS LP
    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 928,496 shares
    Change vs previous 13F -58,223 shares

    0.03% of the 13F portfolio, value $116,617,745.

    13F-HR 0000354204-25-001097 filed by DIMENSIONAL FUND ADVISORS LP
    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 986,719 shares
    Change vs previous 13F -35,305 shares

    0.03% of the 13F portfolio, value $135,039,721.

    13F-HR 0000354204-25-000866 filed by DIMENSIONAL FUND ADVISORS LP
    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 1,022,024 shares
    Change vs previous 13F -92,316 shares

    0.04% of the 13F portfolio, value $156,251,484.

    13F-HR 0000354204-25-000528 filed by DIMENSIONAL FUND ADVISORS LP
    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 1,114,340 shares
    Change vs previous 13F not available

    0.05% of the 13F portfolio, value $216,010,089.

    13F-HR 0000354204-24-004773 filed by DIMENSIONAL FUND ADVISORS LP
    Filed (acceptance time not in the bulk data set), ingested

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