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Woodline Partners LP: BIIB position timeline

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

Woodline Partners LP held 112,463 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 112,463 shares
    Change vs previous 13F +3,431 shares

    0.08% of the 13F portfolio, value $24,298,756.

    13F-HR 0001172661-26-003541 filed by Woodline Partners 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/A 109,032 shares
    Change vs previous 13F +6,714 shares

    0.08% of the 13F portfolio, value $19,988,837.

    13F-HR/A 0001172661-26-002263 filed by Woodline Partners 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 102,318 shares
    Change vs previous 13F +5,652 shares

    0.07% of the 13F portfolio, value $18,006,945.

    13F-HR 0001172661-26-000861 filed by Woodline Partners 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 96,666 shares
    Change vs previous 13F +1,106 shares

    0.06% of the 13F portfolio, value $13,540,973.

    13F-HR 0001172661-25-004991 filed by Woodline Partners 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 95,560 shares
    Change vs previous 13F -29,602 shares

    0.06% of the 13F portfolio, value $12,001,380.

    13F-HR 0001172661-25-003349 filed by Woodline Partners 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 125,162 shares
    Change vs previous 13F +37,005 shares

    0.11% of the 13F portfolio, value $17,127,168.

    13F-HR 0001172661-25-002043 filed by Woodline Partners 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 88,157 shares
    Change vs previous 13F +5,874 shares

    0.09% of the 13F portfolio, value $13,480,968.

    13F-HR 0001172661-25-001092 filed by Woodline Partners 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 82,283 shares
    Change vs previous 13F not available

    0.13% of the 13F portfolio, value $15,949,737.

    13F-HR 0001172661-24-004991 filed by Woodline Partners LP
    Filed (acceptance time not in the bulk data set), ingested

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