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Disclosery

Hudson Bay Capital Management LP: CSTM position timeline

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

Hudson Bay Capital Management LP held 185,572 CSTM 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 185,572 shares
    Change vs previous 13F -216,417 shares

    0.03% of the 13F portfolio, value $5,914,180.

    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 401,989 shares
    Change vs previous 13F 0 shares

    0.06% of the 13F portfolio, value $9,880,890.

    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 401,989 shares
    Change vs previous 13F +94,502 shares

    0.04% of the 13F portfolio, value $7,577,493.

    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 307,487 shares
    Change vs previous 13F -201,809 shares

    0.03% of the 13F portfolio, value $4,575,407.

    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 509,296 shares
    Change vs previous 13F +265,780 shares

    0.04% of the 13F portfolio, value $6,773,637.

    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 243,516 shares
    Change vs previous 13F -480,000 shares

    0.02% of the 13F portfolio, value $2,457,076.

    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 723,516 shares
    Change vs previous 13F +343,435 shares

    0.04% of the 13F portfolio, value $7,430,509.

    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 380,081 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $6,180,117.

    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).