Skip to content
Disclosery

Hudson Bay Capital Management LP: BRK-B position timeline

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

Hudson Bay Capital Management LP held 818,279 BRK-B 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 818,279 shares
    Change vs previous 13F +53,013 shares

    1.92% of the 13F portfolio, value $409,458,629.

    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 765,266 shares
    Change vs previous 13F +160,000 shares

    2.2% of the 13F portfolio, value $366,715,467.

    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 605,266 shares
    Change vs previous 13F +21,851 shares

    1.74% of the 13F portfolio, value $304,236,955.

    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 583,415 shares
    Change vs previous 13F -104,190 shares

    1.78% of the 13F portfolio, value $293,306,057.

    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 687,605 shares
    Change vs previous 13F +244,095 shares

    2.2% of the 13F portfolio, value $334,017,881.

    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 443,510 shares
    Change vs previous 13F -72,284 shares

    1.5% of the 13F portfolio, value $236,204,556.

    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 515,794 shares
    Change vs previous 13F +35,794 shares

    1.41% of the 13F portfolio, value $233,799,104.

    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 480,000 shares
    Change vs previous 13F not available

    1.52% of the 13F portfolio, value $220,924,800.

    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).