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Disclosery

NORDEN GROUP LLC: BIIB position timeline

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

NORDEN GROUP LLC held 945 BIIB shares at 2026-06-30 per its 13F-HR filed 2026-07-29.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 945 shares
    Change vs previous 13F +945 shares

    0.02% of the 13F portfolio, value $204,176.

    13F-HR 0001990699-26-000005 filed by NORDEN GROUP LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  2. period ended2024-12-31
    13F 0 shares
    Change vs previous 13F -2,424 shares

    13F-HR 0001990699-25-000001 filed by NORDEN GROUP 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.

  3. period ended2024-09-30
    13F 2,424 shares
    Change vs previous 13F not available

    0.06% of the 13F portfolio, value $469,869.

    13F-HR 0001990699-24-000007 filed by NORDEN GROUP LLC
    Filed (acceptance time not in the bulk data set), ingested

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