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Disclosery

O'SHAUGHNESSY ASSET MANAGEMENT, LLC: BIIB position timeline

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

O'SHAUGHNESSY ASSET MANAGEMENT, LLC held 138,260 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 138,260 shares
    Change vs previous 13F -3,064 shares

    0.14% of the 13F portfolio, value $29,872,456.

    13F-HR 0001423442-26-000003 filed by O'SHAUGHNESSY ASSET MANAGEMENT, 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 141,324 shares
    Change vs previous 13F +31,056 shares

    0.13% of the 13F portfolio, value $25,908,929.

    13F-HR 0001423442-26-000002 filed by O'SHAUGHNESSY ASSET MANAGEMENT, 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 110,268 shares
    Change vs previous 13F +50,279 shares

    0.11% of the 13F portfolio, value $19,406,065.

    13F-HR 0001423442-26-000001 filed by O'SHAUGHNESSY ASSET MANAGEMENT, 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 59,989 shares
    Change vs previous 13F +31,677 shares

    0.05% of the 13F portfolio, value $8,403,259.

    13F-HR 0001423442-25-000009 filed by O'SHAUGHNESSY ASSET MANAGEMENT, 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 28,312 shares
    Change vs previous 13F +25,836 shares

    0.02% of the 13F portfolio, value $3,555,704.

    13F-HR 0001423442-25-000008 filed by O'SHAUGHNESSY ASSET MANAGEMENT, 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 2,476 shares
    Change vs previous 13F +806 shares

    <0.01% of the 13F portfolio, value $338,816.

    13F-HR 0001423442-25-000003 filed by O'SHAUGHNESSY ASSET MANAGEMENT, LLC
    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 1,670 shares
    Change vs previous 13F -1,926 shares

    <0.01% of the 13F portfolio, value $255,376.

    13F-HR 0001423442-25-000001 filed by O'SHAUGHNESSY ASSET MANAGEMENT, LLC
    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 3,596 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $688,850.

    13F-HR 0001423442-24-000011 filed by O'SHAUGHNESSY ASSET MANAGEMENT, LLC
    Filed (acceptance time not in the bulk data set), ingested

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