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Disclosery

National Pension Service: BIIB position timeline

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

National Pension Service held 406,064 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 406,064 shares
    Change vs previous 13F +4,397 shares

    0.06% of the 13F portfolio, value $87,734,188.

    13F-HR 0001193125-26-347818 filed by National Pension Service
    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 401,667 shares
    Change vs previous 13F +114,429 shares

    0.06% of the 13F portfolio, value $73,637,611.

    13F-HR 0001193125-26-217663 filed by National Pension Service
    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 287,238 shares
    Change vs previous 13F +2,036 shares

    0.04% of the 13F portfolio, value $50,551,016.

    13F-HR 0001608046-26-000001 filed by National Pension Service
    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 285,202 shares
    Change vs previous 13F +12,147 shares

    0.03% of the 13F portfolio, value $39,951,096.

    13F-HR 0001608046-25-000018 filed by National Pension Service
    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 273,055 shares
    Change vs previous 13F +1,572 shares

    0.03% of the 13F portfolio, value $34,292,977.

    13F-HR 0001608046-25-000017 filed by National Pension Service
    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 271,483 shares
    Change vs previous 13F +21,398 shares

    0.04% of the 13F portfolio, value $37,149,734.

    13F-HR 0001608046-25-000007 filed by National Pension Service
    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 250,085 shares
    Change vs previous 13F -109,484 shares

    0.04% of the 13F portfolio, value $38,242,998.

    13F-HR 0001608046-25-000001 filed by National Pension Service
    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 359,569 shares
    Change vs previous 13F not available

    0.07% of the 13F portfolio, value $69,698,855.

    13F-HR 0001608046-24-000012 filed by National Pension Service
    Filed (acceptance time not in the bulk data set), ingested

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