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Disclosery

Hudson Bay Capital Management LP: ARGX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Hudson Bay Capital Management LP on ARGX, newest first. How the timeline and the estimate are built.

Hudson Bay Capital Management LP held 5,000 ARGX 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 5,000 shares
    Change vs previous 13F -25,000 shares

    0.02% of the 13F portfolio, value $4,638,850.

    13F-HR 0001393825-26-000058 filed by Hudson Bay Capital Management 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 30,000 shares
    Change vs previous 13F +8,178 shares

    0.13% of the 13F portfolio, value $21,907,500.

    13F-HR 0001393825-26-000041 filed by Hudson Bay Capital Management 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 21,822 shares
    Change vs previous 13F +11,322 shares

    0.11% of the 13F portfolio, value $18,351,211.

    13F-HR 0001393825-26-000021 filed by Hudson Bay Capital Management 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/A 10,500 shares
    Change vs previous 13F -57,423 shares

    0.05% of the 13F portfolio, value $7,744,380.

    13F-HR/A 0001393825-25-000093 filed by Hudson Bay Capital Management 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/A 67,923 shares
    Change vs previous 13F +67,923 shares

    0.25% of the 13F portfolio, value $37,440,516.

    13F-HR/A 0001393825-25-000066 filed by Hudson Bay Capital Management LP
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2024-09-30
    13F 0 shares
    Change vs previous 13F not available

    13F-HR 0002033916-24-000083 filed by Hudson Bay Capital Management LP
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.