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Disclosery

OPPENHEIMER ASSET MANAGEMENT INC.: BIIB position timeline

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

OPPENHEIMER ASSET MANAGEMENT INC. held 4,873 BIIB shares at 2026-06-30 per its 13F-HR filed 2026-08-03.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 4,873 shares
    Change vs previous 13F -51 shares

    0.01% of the 13F portfolio, value $1,052,860.

    13F-HR 0000822581-26-000002 filed by OPPENHEIMER & CO INC
    Filed (acceptance time not in the bulk data set), ingested

    • OPPENHEIMER & CO INC: 2,666 shares
    • OPPENHEIMER ASSET MANAGEMENT INC.: 2,207 shares

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

  2. period ended2026-03-31
    13F 4,924 shares
    Change vs previous 13F +1,912 shares

    0.01% of the 13F portfolio, value $902,718.

    13F-HR 0000822581-26-000001 filed by OPPENHEIMER & CO INC
    Filed (acceptance time not in the bulk data set), ingested

    • OPPENHEIMER & CO INC: 2,720 shares
    • OPPENHEIMER ASSET MANAGEMENT INC.: 2,204 shares

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

  3. period ended2025-12-31
    13F 3,012 shares
    Change vs previous 13F -10,598 shares

    0.01% of the 13F portfolio, value $530,082.

    13F-HR 0001085146-26-000133 filed by OPPENHEIMER ASSET MANAGEMENT INC.
    Filed (acceptance time not in the bulk data set), ingested

    • OPPENHEIMER & CO INC: 0 shares
    • OPPENHEIMER ASSET MANAGEMENT INC.: 3,012 shares

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

  4. period ended2025-09-30
    13F 13,610 shares
    Change vs previous 13F +11,346 shares

    0.02% of the 13F portfolio, value $1,906,489.

    13F-HR 0000822581-25-000003 filed by OPPENHEIMER & CO INC
    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 2,264 shares
    Change vs previous 13F -2,026 shares

    <0.01% of the 13F portfolio, value $284,336.

    13F-HR 0001085146-25-004369 filed by OPPENHEIMER & CO INC
    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 4,290 shares
    Change vs previous 13F +66 shares

    0.01% of the 13F portfolio, value $587,044.

    13F-HR 0001085146-25-002234 filed by OPPENHEIMER & CO INC
    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 4,224 shares
    Change vs previous 13F -37,754 shares

    0.01% of the 13F portfolio, value $645,934.

    13F-HR 0001085146-25-000778 filed by OPPENHEIMER & CO INC
    Filed (acceptance time not in the bulk data set), ingested

    • OPPENHEIMER & CO INC: 4,224 shares
    • OPPENHEIMER ASSET MANAGEMENT INC.: 0 shares

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

  8. period ended2024-09-30
    13F 41,978 shares
    Change vs previous 13F not available

    0.05% of the 13F portfolio, value $8,137,016.

    13F-HR 0001085146-24-005361 filed by OPPENHEIMER ASSET MANAGEMENT INC.
    Filed (acceptance time not in the bulk data set), ingested

    • OPPENHEIMER & CO INC: 6,050 shares
    • OPPENHEIMER ASSET MANAGEMENT INC.: 35,928 shares

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