Position in SRRK
as of Mar 31, 2026
· filed May 12, 2026
Position Value
$27,533,728
+$23,633,982 QoQ
Shares Held
560,084
+532.6% QoQ
Ownership
0.467%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2020
16 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in SRRK Over Time
Shares Held
Position Value (USD)
Derivatives in SRRK
reported options exposure · as of Mar 31, 2026CallValue
$3,642,756
CallShares
74,100
PutValue
$3,057,752
PutShares
62,200
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, 2026JANE STREET GROUP, LLC holds $1,253,826,569 across 316 Biotechnology names. SRRK ranks #11 (2.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BBIO |
BridgeBio Pharma, Inc.
|
1,757,672 | $130,524,721 | |
| 2 | RPRX |
Royalty Pharma plc
|
2,400,382 | $115,146,324 | |
| 3 | TGTX |
Tg Therapeutics, Inc.
|
2,041,669 | $67,824,242 | |
| 4 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
122,946 | $54,900,305 | |
| 5 | HALO |
Halozyme Therapeutics, Inc.
|
831,707 | $53,753,223 | |
| 6 | EXEL |
Exelixis, Inc.
|
1,087,030 | $46,622,715 | |
| 7 | JAZZ |
Jazz Pharmaceuticals plc
|
223,615 | $42,274,415 | |
| 8 | BNTX |
BioNTech SE
|
336,757 | $29,930,962 |
All Filings in SRRK
Export CSV
28 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $27,533,728 | 560,084 | Shares | Defined | 2026-05-12 | |
| 2026-03-31 | $3,057,752 | 62,200 | Put | Defined | 2026-05-12 | |
| 2026-03-31 | $3,642,756 | 74,100 | Call | Defined | 2026-05-12 | |
| 2025-12-31 | $1,414,005 | 32,100 | Put | Defined | 2026-02-12 | |
| 2025-12-31 | $5,585,540 | 126,800 | Call | Defined | 2026-02-12 | |
| 2025-12-31 | $3,899,746 | 88,530 | Shares | Defined | 2026-02-12 | |
| 2025-09-30 | $12,099,276 | 324,900 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $19,644,100 | 527,500 | Put | Defined | 2025-11-14 | |
| 2025-06-30 | $3,173,632 | 89,600 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $3,184,258 | 89,900 | Call | Defined | 2025-08-14 | |
| 2025-03-31 | $639,559 | 19,893 | Shares | Defined | 2025-05-19 | |
| 2025-03-31 | $3,025,315 | 94,100 | Put | Defined | 2025-05-19 | |
| 2025-03-31 | $806,965 | 25,100 | Call | Defined | 2025-05-19 | |
| 2024-12-31 | $1,079,677 | 24,981 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $8,510,018 | 196,900 | Put | Defined | 2025-02-14 | |
| 2024-12-31 | $7,157,232 | 165,600 | Call | Defined | 2025-02-14 | |
| 2024-09-30 | $505,286 | 63,082 | Shares | Defined | 2024-11-15 | |
| 2024-09-30 | $139,374 | 17,400 | Put | Defined | 2024-11-15 | |
| 2024-09-30 | $83,304 | 10,400 | Call | Defined | 2024-11-15 | |
| 2024-06-30 | $1,297,713 | 155,788 | Shares | Defined | 2024-08-15 | |
| 2024-03-31 | $4,339,087 | 244,318 | Shares | Defined | 2024-05-16 | |
| 2023-12-31 | $2,349,153 | 124,955 | Shares | Defined | 2024-02-15 | |
| 2023-03-31 | $1,879,592 | 234,949 | Shares | Defined | 2023-05-16 | |
| 2022-12-31 | $298,712 | 33,007 | Shares | Defined | 2023-02-15 | |
| 2022-03-31 | $205,672 | 15,956 | Shares | Defined | 2022-05-17 | |
| 2021-09-30 | $335,086 | 10,148 | Shares | Defined | 2021-11-16 | |
| 2021-06-30 | $240,881 | 8,335 | Shares | Defined | 2021-08-16 | |
| 2020-12-31 | $212,561 | 4,380 | Shares | Defined | 2021-02-17 | |
| No filing history on record for this holder in this stock. | ||||||