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Disclosery

LEUTHOLD GROUP, LLC: BIIB position timeline

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

LEUTHOLD GROUP, LLC held 31,489 BIIB shares at 2026-06-30 per its 13F-HR filed 2026-08-04.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 31,489 shares
    Change vs previous 13F -1,654 shares

    0.68% of the 13F portfolio, value $6,803,513.

    13F-HR 0000897069-26-001570 filed by LEUTHOLD 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 ended2026-03-31
    13F 33,143 shares
    Change vs previous 13F +554 shares

    0.65% of the 13F portfolio, value $6,076,106.

    13F-HR 0000897069-26-001031 filed by LEUTHOLD GROUP, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-12-31
    13F 32,589 shares
    Change vs previous 13F +9,072 shares

    0.62% of the 13F portfolio, value $5,735,338.

    13F-HR 0000897069-26-000228 filed by LEUTHOLD GROUP, LLC
    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 23,517 shares
    Change vs previous 13F not available

    0.36% of the 13F portfolio, value $3,294,261.

    13F-HR 0000897069-25-001644 filed by LEUTHOLD GROUP, LLC
    Filed (acceptance time not in the bulk data set), ingested

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