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Pacer Advisors, Inc.: BIIB position timeline

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

Pacer Advisors, Inc. held 1,122,981 BIIB shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,122,981 shares
    Change vs previous 13F +462,573 shares

    0.63% of the 13F portfolio, value $242,631,000.

    13F-HR 0000894189-26-022265 filed by Pacer Advisors, Inc.
    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 660,408 shares
    Change vs previous 13F -485,482 shares

    0.35% of the 13F portfolio, value $121,073,000.

    13F-HR/A 0000894189-26-017939 filed by Pacer Advisors, Inc.
    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/A 1,145,890 shares
    Change vs previous 13F -305,359 shares

    0.52% of the 13F portfolio, value $201,665,181.

    13F-HR/A 0000894189-26-004242 filed by Pacer Advisors, Inc.
    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 1,451,249 shares
    Change vs previous 13F +131,258 shares

    0.52% of the 13F portfolio, value $203,290,960.

    13F-HR 0000894189-25-011350 filed by Pacer Advisors, Inc.
    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 1,319,991 shares
    Change vs previous 13F -32,569 shares

    0.42% of the 13F portfolio, value $165,777,670.

    13F-HR 0000894189-25-005538 filed by Pacer Advisors, Inc.
    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 1,352,560 shares
    Change vs previous 13F -1,314,971 shares

    0.44% of the 13F portfolio, value $185,084,310.

    13F-HR 0000894189-25-003627 filed by Pacer Advisors, Inc.
    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 2,667,531 shares
    Change vs previous 13F +2,648,024 shares

    0.89% of the 13F portfolio, value $407,918,840.

    13F-HR 0000894189-25-000254 filed by Pacer Advisors, Inc.
    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 19,507 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $3,781,237.

    13F-HR 0000894189-24-006648 filed by Pacer Advisors, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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