Hudson Bay Capital Management LP
Position in VRTX — Vertex Pharmaceuticals Inc / Ma
CIK 1393825
STAMFORD, CT
Position in VRTX
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$193,943,261
+$173,848,961 QoQ
Shares Held
390,440
+767.6% QoQ
Ownership
0.154%
of shares outstanding
% of Portfolio
1.03%
of 13F equity value
Holder Rank
#75
of 1,732 holders
Holding Since
Sep 2020
18 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in VRTX Over Time
Shares Held
Position Value (USD)
Derivatives in VRTX
reported options exposure · as of Jun 30, 2026CallValue
$0
CallShares
0
PutValue
$124,182,500
PutShares
250,000
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 Jun 30, 2026Hudson Bay Capital Management LP holds $565,820,903 across 77 Biotechnology names. VRTX ranks #1 (34.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
This page
|
390,440 | $193,943,261 | |
| 2 | BMRN |
Biomarin Pharmaceutical Inc
|
825,002 | $47,206,614 | |
| 3 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
148,720 | $44,769,181 | |
| 4 | BNTX |
BioNTech SE
|
260,000 | $24,193,000 | |
| 5 | IMCR |
Immunocore Holdings plc
|
590,000 | $18,732,500 | |
| 6 | TECH |
BIO-TECHNE Corp
|
200,000 | $14,130,000 | |
| 7 | VIR |
Vir Biotechnology, Inc.
|
1,364,000 | $13,899,160 | |
| 8 | PTCT |
Ptc Therapeutics, Inc.
|
159,778 | $13,033,091 |
All Filings in VRTX
Export CSV
27 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $193,943,261 | 390,440 | Shares | Sole | 2026-08-14 | |
| 2026-06-30 | $124,182,500 | 250,000 | Put | Sole | 2026-08-14 | |
| 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 | $1,291,080 | 2,900 | Call | Sole | 2025-08-18 | |
| 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 | |
| 2025-03-31 | $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 | 2023-11-14 | |
| 2023-09-30 | $2,434,180 | 7,000 | Put | Sole | 2023-11-14 | |
| 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 | 2021-02-12 | |
| 2020-09-30 | $2,721,200 | 10,000 | Shares | Sole | 2020-11-12 | |
| No filing history on record for this holder in this stock. | ||||||