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Disclosery

Prosight Management, LP: ARGX position timeline

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

Prosight Management, LP held 0 ARGX shares at 2025-12-31 per its 13F-HR filed 2026-02-13.

the latest 13F is the newest step

  1. period ended2025-12-31
    13F 0 shares
    Change vs previous 13F -3,300 shares

    13F-HR 0001420506-26-000422 filed by Prosight 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.

  2. period ended2025-09-30
    13F 3,300 shares
    Change vs previous 13F -18,700 shares

    0.58% of the 13F portfolio, value $2,433,948.

    13F-HR 0001420506-25-003233 filed by Prosight 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 ended2025-06-30
    13F 22,000 shares
    Change vs previous 13F +8,300 shares

    2.96% of the 13F portfolio, value $12,126,840.

    13F-HR 0001420506-25-002021 filed by Prosight 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 ended2025-03-31
    13F 13,700 shares
    Change vs previous 13F not available

    2.66% of the 13F portfolio, value $8,108,550.

    13F-HR 0001420506-25-001167 filed by Prosight Management, LP
    Filed (acceptance time not in the bulk data set), ingested

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