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VIKING GLOBAL INVESTORS LP: ADPT position timeline

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

VIKING GLOBAL INVESTORS LP held 29,993,708 ADPT 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 29,993,708 shares
    Change vs previous 13F 0 shares

    1.83% of the 13F portfolio, value $643,365,037.

    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 29,993,708 shares
    Change vs previous 13F 0 shares

    1.16% of the 13F portfolio, value $416,312,667.

    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 29,993,708 shares
    Change vs previous 13F 0 shares

    1.29% of the 13F portfolio, value $487,097,818.

    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 29,993,708 shares
    Change vs previous 13F 0 shares

    1.17% of the 13F portfolio, value $448,705,872.

    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 29,993,708 shares
    Change vs previous 13F 0 shares

    1.01% of the 13F portfolio, value $349,426,698.

    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 29,993,708 shares
    Change vs previous 13F 0 shares

    0.71% of the 13F portfolio, value $222,853,250.

    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 29,993,708 shares
    Change vs previous 13F 0 shares

    0.58% of the 13F portfolio, value $179,812,279.

    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 29,993,708 shares
    Change vs previous 13F not available

    0.56% of the 13F portfolio, value $153,567,785.

    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).