Skip to content
Disclosery

Hudson Bay Capital Management LP: REGN position timeline

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

Hudson Bay Capital Management LP held 17,500 REGN 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 17,500 shares
    Change vs previous 13F -14,501 shares

    0.05% of the 13F portfolio, value $10,911,950.

    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 32,001 shares
    Change vs previous 13F +5,874 shares

    0.15% of the 13F portfolio, value $24,725,253.

    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 26,127 shares
    Change vs previous 13F -7,664 shares

    0.12% of the 13F portfolio, value $20,166,647.

    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 33,791 shares
    Change vs previous 13F -32,567 shares

    0.12% of the 13F portfolio, value $18,999,666.

    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 66,358 shares
    Change vs previous 13F +45,771 shares

    0.23% of the 13F portfolio, value $34,837,950.

    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 ended2025-03-31
    13F 20,587 shares
    Change vs previous 13F +5,581 shares

    0.08% of the 13F portfolio, value $13,056,893.

    13F-HR 0001393825-25-000010 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).

  7. period ended2024-12-31
    13F 15,006 shares
    Change vs previous 13F -14,346 shares

    0.06% of the 13F portfolio, value $10,689,224.

    13F-HR 0002033916-25-000027 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).

  8. period ended2024-09-30
    13F 29,352 shares
    Change vs previous 13F not available

    0.21% of the 13F portfolio, value $30,855,996.

    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).