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Hudson Bay Capital Management LP: MSM position timeline

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

Hudson Bay Capital Management LP held 86,265 MSM 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 86,265 shares
    Change vs previous 13F -1,337 shares

    0.05% of the 13F portfolio, value $10,261,222.

    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 87,602 shares
    Change vs previous 13F +27,514 shares

    0.05% of the 13F portfolio, value $8,083,037.

    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 60,088 shares
    Change vs previous 13F +60,088 shares

    0.03% of the 13F portfolio, value $5,053,401.

    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 0 shares
    Change vs previous 13F -5,340 shares

    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).

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

  5. period ended2025-06-30
    13F/A 5,340 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $454,007.

    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).