Skip to content
Disclosery

THOMPSON SIEGEL & WALMSLEY LLC: BIIB position timeline

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

THOMPSON SIEGEL & WALMSLEY LLC held 130,512 BIIB shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 130,512 shares
    Change vs previous 13F -117,831 shares

    0.51% of the 13F portfolio, value $28,198,000.

    13F-HR 0001008322-26-000009 filed by THOMPSON SIEGEL & WALMSLEY 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 248,343 shares
    Change vs previous 13F +19,536 shares

    0.8% of the 13F portfolio, value $45,529,000.

    13F-HR 0001008322-26-000006 filed by THOMPSON SIEGEL & WALMSLEY 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 228,807 shares
    Change vs previous 13F -77,635 shares

    0.68% of the 13F portfolio, value $40,268,000.

    13F-HR 0001008322-26-000003 filed by THOMPSON SIEGEL & WALMSLEY 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 306,442 shares
    Change vs previous 13F -16,576 shares

    0.7% of the 13F portfolio, value $42,926,000.

    13F-HR 0001008322-25-000017 filed by THOMPSON SIEGEL & WALMSLEY LLC
    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 323,018 shares
    Change vs previous 13F +65,562 shares

    0.68% of the 13F portfolio, value $40,568,000.

    13F-HR 0001008322-25-000011 filed by THOMPSON SIEGEL & WALMSLEY LLC
    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 257,456 shares
    Change vs previous 13F not available

    0.6% of the 13F portfolio, value $35,230,000.

    13F-HR 0001008322-25-000008 filed by THOMPSON SIEGEL & WALMSLEY LLC
    Filed (acceptance time not in the bulk data set), ingested

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