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Disclosery

Hudson Bay Capital Management LP: ISRG position timeline

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

Hudson Bay Capital Management LP held 327,000 ISRG 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 327,000 shares
    Change vs previous 13F +227,000 shares

    0.61% of the 13F portfolio, value $130,041,360.

    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 100,000 shares
    Change vs previous 13F -182,500 shares

    0.28% of the 13F portfolio, value $46,099,000.

    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 282,500 shares
    Change vs previous 13F +217,368 shares

    0.92% of the 13F portfolio, value $159,996,700.

    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 65,132 shares
    Change vs previous 13F -2,198 shares

    0.18% of the 13F portfolio, value $29,128,984.

    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 67,330 shares
    Change vs previous 13F -113,519 shares

    0.24% of the 13F portfolio, value $36,587,795.

    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 180,849 shares
    Change vs previous 13F not available

    0.57% of the 13F portfolio, value $89,569,084.

    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).