Hudson Bay Capital Management LP
Position in VRTX — Vertex Pharmaceuticals Inc / Ma
CIK 1393825
STAMFORD, CT
Position in VRTX
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$20,094,300
-$54,491,580 QoQ
Shares Held
45,000
-72.6% QoQ
Ownership
0.018%
of shares outstanding
% of Portfolio
0.14%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2020
17 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in VRTX Over Time
Shares Held
Position Value (USD)
Derivatives in VRTX
reported options exposure · as of Dec 31, 2025CallValue
$0
CallShares
0
PutValue
$45,336,000
PutShares
100,000
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 Biotechnology
Healthcare · as of Mar 31, 2026Hudson Bay Capital Management LP holds $534,286,565 across 150 Biotechnology names. VRTX ranks #7 (3.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BMRN |
Biomarin Pharmaceutical Inc
|
974,776 | $55,065,096 | |
| 2 | APLS |
Apellis Pharmaceuticals, Inc.
|
1,190,416 | $47,890,435 | |
| 3 | REGN |
Regeneron Pharmaceuticals, Inc.
|
32,001 | $24,725,252 | |
| 4 | BNTX |
BioNTech SE
|
275,000 | $24,442,000 | |
| 5 | IONS |
Ionis Pharmaceuticals Inc
|
295,100 | $22,159,059 | |
| 6 | ARGX |
Argenx SE
|
30,000 | $21,907,500 | |
| 7 | VRTX |
Vertex Pharmaceuticals Inc / Ma
This page
|
45,000 | $20,094,300 | |
| 8 | IMCR |
Immunocore Holdings plc
|
633,174 | $19,090,196 |
All Filings in VRTX
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $20,094,300 | 45,000 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $74,585,880 | 164,518 | Shares | Sole | 2026-02-13 | |
| 2025-12-31 | $45,336,000 | 100,000 | Put | Sole | 2026-02-13 | |
| 2025-09-30 | $17,747,166 | 45,315 | Shares | Sole | 2025-12-15 | |
| 2025-06-30 | $3,606,120 | 8,100 | Put | Sole | 2025-08-18 | |
| 2025-06-30 | $22,369,519 | 50,246 | Shares | Sole | 2025-08-18 | |
| 2025-06-30 | $1,291,080 | 2,900 | Call | Sole | 2025-08-18 | |
| 2025-03-31 | $24,144,036 | 49,800 | Put | Sole | 2025-05-14 | |
| 2025-03-31 | $5,526,948 | 11,400 | Call | Sole | 2025-05-14 | |
| 2025-03-31 | $24,163,913 | 49,841 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $4,033,040 | 10,015 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $13,952,400 | 30,000 | Shares | Sole | 2024-11-13 | |
| 2024-06-30 | $64,449,000 | 137,500 | Shares | Sole | 2024-08-14 | |
| 2024-06-30 | $64,449,000 | 137,500 | Put | Sole | 2024-08-14 | |
| 2023-12-31 | $17,089,380 | 42,000 | Put | Sole | 2024-02-14 | |
| 2023-12-31 | $15,054,930 | 37,000 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $2,434,180 | 7,000 | Shares | Sole | 2023-12-07 | |
| 2023-09-30 | $2,434,180 | 7,000 | Put | Sole | 2023-12-07 | |
| 2022-12-31 | $9,240,960 | 32,000 | Shares | Sole | 2023-02-14 | |
| 2021-12-31 | $7,137,000 | 32,500 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $11,336,875 | 62,500 | Shares | Sole | 2021-12-29 | |
| 2021-06-30 | $11,089,650 | 55,000 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $11,346,192 | 52,800 | Shares | Sole | 2021-05-14 | |
| 2020-12-31 | $7,090,200 | 30,000 | Shares | Sole | 2021-03-04 | |
| 2020-09-30 | $2,721,200 | 10,000 | Shares | Sole | 2020-11-12 | |
| No filing history on record for this holder in this stock. | ||||||