Position in JANX
as of Mar 31, 2026
· filed May 12, 2026
Position Value
$3,499,185
-$3,956,029 QoQ
Shares Held
251,740
-53.4% QoQ
Ownership
0.413%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2021
11 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in JANX Over Time
Shares Held
Position Value (USD)
Derivatives in JANX
reported options exposure · as of Mar 31, 2026CallValue
$803,420
CallShares
57,800
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 Mar 31, 2026JANE STREET GROUP, LLC holds $1,255,284,514 across 317 Biotechnology names. JANX ranks #58 (0.3% 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 JANX
Export CSV
19 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $3,499,185 | 251,740 | Shares | Defined | 2026-05-12 | |
| 2026-03-31 | $803,420 | 57,800 | Call | Defined | 2026-05-12 | |
| 2025-12-31 | $7,455,214 | 540,233 | Shares | Defined | 2026-02-12 | |
| 2025-12-31 | $335,340 | 24,300 | Put | Defined | 2026-02-12 | |
| 2025-12-31 | $828,000 | 60,000 | Call | Defined | 2026-02-12 | |
| 2025-09-30 | $1,987,508 | 81,322 | Shares | Defined | 2025-11-14 | |
| 2025-09-30 | $290,836 | 11,900 | Put | Defined | 2025-11-14 | |
| 2025-06-30 | $249,480 | 10,800 | Call | Defined | 2025-08-14 | |
| 2025-06-30 | $781,079 | 33,813 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $834,300 | 30,900 | Call | Defined | 2025-05-19 | |
| 2024-12-31 | $219,514 | 4,100 | Put | Defined | 2025-02-14 | |
| 2024-12-31 | $204,201 | 3,814 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $2,687,708 | 50,200 | Call | Defined | 2025-02-14 | |
| 2024-09-30 | $436,128 | 9,600 | Put | Defined | 2024-11-15 | |
| 2024-09-30 | $1,778,947 | 39,158 | Shares | Defined | 2024-11-15 | |
| 2024-06-30 | $1,657,418 | 39,566 | Shares | Defined | 2024-08-15 | |
| 2024-03-31 | $757,968 | 20,132 | Shares | Defined | 2024-05-16 | |
| 2023-06-30 | $177,278 | 14,935 | Shares | Defined | 2023-08-14 | |
| 2021-12-31 | $310,668 | 15,746 | Shares | Defined | 2022-02-15 | |
| No filing history on record for this holder in this stock. | ||||||