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VIKING GLOBAL INVESTORS LP: BMRN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of VIKING GLOBAL INVESTORS LP on BMRN, newest first. How the timeline and the estimate are built.

VIKING GLOBAL INVESTORS LP held 7,616,563 BMRN shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 7,616,563 shares
    Change vs previous 13F +554,486 shares

    1.24% of the 13F portfolio, value $435,819,735.

    13F-HR 0001103804-26-000006 filed by VIKING GLOBAL INVESTORS LP
    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 7,062,077 shares
    Change vs previous 13F +1,025,141 shares

    1.12% of the 13F portfolio, value $398,936,730.

    13F-HR 0001103804-26-000004 filed by VIKING GLOBAL INVESTORS LP
    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 6,036,936 shares
    Change vs previous 13F -2,285,243 shares

    0.95% of the 13F portfolio, value $358,775,106.

    13F-HR 0001103804-26-000002 filed by VIKING GLOBAL INVESTORS LP
    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 8,322,179 shares
    Change vs previous 13F -3,966,432 shares

    1.17% of the 13F portfolio, value $450,729,215.

    13F-HR 0001103804-25-000010 filed by VIKING GLOBAL INVESTORS LP
    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 12,288,611 shares
    Change vs previous 13F +1,488,552 shares

    1.95% of the 13F portfolio, value $675,504,947.

    13F-HR 0001103804-25-000007 filed by VIKING GLOBAL INVESTORS LP
    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 10,800,059 shares
    Change vs previous 13F +289,509 shares

    2.43% of the 13F portfolio, value $763,456,171.

    13F-HR 0001103804-25-000004 filed by VIKING GLOBAL INVESTORS LP
    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 10,510,550 shares
    Change vs previous 13F +757,257 shares

    2.24% of the 13F portfolio, value $690,858,452.

    13F-HR 0001103804-25-000002 filed by VIKING GLOBAL INVESTORS LP
    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 9,753,293 shares
    Change vs previous 13F not available

    2.5% of the 13F portfolio, value $685,558,965.

    13F-HR 0001103804-24-000006 filed by VIKING GLOBAL INVESTORS LP
    Filed (acceptance time not in the bulk data set), ingested

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