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Disclosery

ORBIMED ADVISORS LLC: BIIB position timeline

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

ORBIMED ADVISORS LLC held 61,600 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 61,600 shares
    Change vs previous 13F 0 shares

    0.25% of the 13F portfolio, value $13,309,296.

    13F-HR 0001172661-26-003740 filed by ORBIMED ADVISORS LLC
    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 61,600 shares
    Change vs previous 13F +61,600 shares

    0.25% of the 13F portfolio, value $11,293,128.

    13F-HR 0001172661-26-002369 filed by ORBIMED ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-03-31
    13F 0 shares
    Change vs previous 13F -509,100 shares

    13F-HR 0001172661-25-002355 filed by ORBIMED ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  4. period ended2024-12-31
    13F 509,100 shares
    Change vs previous 13F -303,900 shares

    1.62% of the 13F portfolio, value $77,851,572.

    13F-HR 0001172661-25-001136 filed by ORBIMED ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2024-09-30
    13F 813,000 shares
    Change vs previous 13F not available

    2.88% of the 13F portfolio, value $157,591,920.

    13F-HR 0001172661-24-005167 filed by ORBIMED ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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