Hudson Bay Capital Management LP
Position in SRPT — Sarepta Therapeutics, Inc.
CIK 1393825
STAMFORD, CT
Position in SRPT
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$8,086,500
+$2,428,900 QoQ
Shares Held
450,000
+73.1% QoQ
Ownership
0.426%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
#44
of 323 holders
Holding Since
Mar 2021
17 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in SRPT Over Time
Shares Held
Position Value (USD)
Derivatives in SRPT
reported options exposure · as of Jun 30, 2026CallValue
$359,400
CallShares
20,000
PutValue
$0
PutShares
0
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. SRPT ranks #17 (1.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
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 SRPT
Export CSV
24 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $359,400 | 20,000 | Call | Sole | 2026-08-14 | |
| 2026-06-30 | $8,086,500 | 450,000 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $5,657,600 | 260,000 | Shares | Sole | 2026-05-13 | |
| 2026-03-31 | $1,088,000 | 50,000 | Call | Sole | 2026-05-13 | |
| 2025-12-31 | $1,076,000 | 50,000 | Call | Sole | 2026-02-13 | |
| 2025-12-31 | $5,918,000 | 275,000 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $963,500 | 50,000 | Call | Sole | 2025-12-15 | |
| 2025-09-30 | $3,854,057 | 200,003 | Shares | Sole | 2025-12-15 | |
| 2025-06-30 | $4,584,510 | 268,100 | Shares | Sole | 2025-08-18 | |
| 2025-06-30 | $1,629,630 | 95,300 | Call | Sole | 2025-08-18 | |
| 2025-06-30 | $342,000 | 20,000 | Put | Sole | 2025-08-18 | |
| 2025-03-31 | $12,779,955 | 200,250 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $7,903,350 | 65,000 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $8,117,850 | 65,000 | Shares | Sole | 2024-11-13 | |
| 2024-06-30 | $1,185,000 | 7,500 | Shares | Sole | 2024-08-14 | |
| 2023-12-31 | $8,505,897 | 88,208 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $6,073,122 | 50,100 | Call | Sole | 2023-11-14 | |
| 2023-09-30 | $5,454,900 | 45,000 | Shares | Sole | 2023-11-14 | |
| 2022-12-31 | $6,139,500 | 47,380 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $18,791,800 | 170,000 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $14,055,000 | 187,500 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $3,320,100 | 42,500 | Shares | Sole | 2022-05-16 | |
| 2021-06-30 | $2,915,250 | 37,500 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $2,086,840 | 28,000 | Shares | Sole | 2021-05-14 | |
| No filing history on record for this holder in this stock. | ||||||