Position in ISRG
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$46,099,000
-$113,897,700 QoQ
Shares Held
100,000
-64.6% QoQ
Ownership
0.028%
of shares outstanding
% of Portfolio
0.32%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2023
8 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in ISRG Over Time
Shares Held
Position Value (USD)
Derivatives in ISRG
reported options exposure · as of Dec 31, 2025CallValue
$0
CallShares
0
PutValue
$113,272,000
PutShares
200,000
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Medical Instruments & Supplies
Healthcare · as of Mar 31, 2026Hudson Bay Capital Management LP holds $61,771,181 across 7 Medical Instruments & Supplies names. ISRG ranks #1 (74.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ISRG |
Intuitive Surgical Inc
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|
100,000 | $46,099,000 | |
| 2 | RGEN |
Repligen Corp
|
92,500 | $10,898,350 | |
| 3 | ALC |
Alcon Inc
|
30,000 | $2,260,500 | |
| 4 | HOLX |
HOLOGIC INC
|
22,640 | $1,711,357 | |
| 5 | MBOT |
Microbot Medical Inc.
|
121,082 | $291,807 | |
| 6 | MMED |
MiniMed Group, Inc.
|
19,210 | $286,613 | |
| 7 | KMTS |
Kestra Medical Technologies, Ltd.
|
11,217 | $223,554 |
All Filings in ISRG
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14 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $46,099,000 | 100,000 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $113,272,000 | 200,000 | Put | Sole | 2026-02-13 | |
| 2025-12-31 | $159,996,700 | 282,500 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $29,128,984 | 65,132 | Shares | Sole | 2025-12-15 | |
| 2025-06-30 | $36,587,795 | 67,330 | Shares | Sole | 2025-08-18 | |
| 2025-06-30 | $5,271,077 | 9,700 | Put | Sole | 2025-08-18 | |
| 2025-03-31 | $108,067,914 | 218,200 | Put | Sole | 2025-05-14 | |
| 2025-03-31 | $7,726,212 | 15,600 | Call | Sole | 2025-05-14 | |
| 2025-03-31 | $89,569,084 | 180,849 | Shares | Sole | 2025-05-14 | |
| 2024-09-30 | $294,762 | 600 | Put | Sole | 2024-11-13 | |
| 2023-12-31 | $36,772,240 | 109,000 | Shares | Sole | 2024-02-14 | |
| 2023-12-31 | $3,710,960 | 11,000 | Put | Sole | 2024-02-14 | |
| 2023-09-30 | $3,215,190 | 11,000 | Shares | Sole | 2023-12-07 | |
| 2023-09-30 | $3,215,190 | 11,000 | Put | Sole | 2023-12-07 | |
| No filing history on record for this holder in this stock. | ||||||