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Disclosery

Hudson Bay Capital Management LP: MAS position timeline

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

Hudson Bay Capital Management LP held 65,615 MAS 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 65,615 shares
    Change vs previous 13F -9,840 shares

    0.03% of the 13F portfolio, value $5,339,093.

    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 75,455 shares
    Change vs previous 13F -31,114 shares

    0.03% of the 13F portfolio, value $4,555,218.

    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 106,569 shares
    Change vs previous 13F -5,873 shares

    0.04% of the 13F portfolio, value $6,762,869.

    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 112,442 shares
    Change vs previous 13F +41,611 shares

    0.05% of the 13F portfolio, value $7,914,792.

    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 70,831 shares
    Change vs previous 13F -81,382 shares

    0.03% of the 13F portfolio, value $4,558,683.

    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 152,213 shares
    Change vs previous 13F +90,414 shares

    0.07% of the 13F portfolio, value $10,584,892.

    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 61,799 shares
    Change vs previous 13F -52,201 shares

    0.03% of the 13F portfolio, value $4,484,753.

    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 114,000 shares
    Change vs previous 13F not available

    0.07% of the 13F portfolio, value $9,569,160.

    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).