Position in JANX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$4,895,259
-$10,341,928 QoQ
Shares Held
352,177
-68.1% QoQ
Ownership
0.577%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2021
20 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
$679,710
CallShares
48,900
PutValue
$604,650
PutShares
43,500
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, 2026CITADEL ADVISORS LLC holds $5,784,241,435 across 374 Biotechnology names. JANX ranks #124 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | INSM |
INSMED Inc
|
2,182,571 | $356,894,009 | |
| 2 | ONC |
BeOne Medicines Ltd.
|
1,032,298 | $306,561,536 | |
| 3 | BMRN |
Biomarin Pharmaceutical Inc
|
4,512,634 | $254,918,694 | |
| 4 | JAZZ |
Jazz Pharmaceuticals plc
|
1,259,444 | $238,097,887 | |
| 5 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
453,843 | $237,573,195 | |
| 6 | BBIO |
BridgeBio Pharma, Inc.
|
3,173,940 | $235,696,783 | |
| 7 | TERN |
Terns Pharmaceuticals, Inc.
|
3,218,810 | $169,695,662 | |
| 8 | PTGX |
Protagonist Therapeutics, Inc
|
1,551,900 | $163,570,260 |
All Filings in JANX
Export CSV
47 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $4,895,259 | 352,177 | Shares | Defined | 2026-05-15 | |
| 2026-03-31 | $604,650 | 43,500 | Put | Defined | 2026-05-15 | |
| 2026-03-31 | $679,710 | 48,900 | Call | Defined | 2026-05-15 | |
| 2025-12-31 | $15,237,187 | 1,104,144 | Shares | Defined | 2026-02-17 | |
| 2025-12-31 | $655,500 | 47,500 | Call | Defined | 2026-02-17 | |
| 2025-12-31 | $1,156,440 | 83,800 | Put | Defined | 2026-02-17 | |
| 2025-09-30 | $307,944 | 12,600 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $19,620,040 | 802,784 | Shares | Defined | 2025-11-14 | |
| 2025-09-30 | $354,380 | 14,500 | Put | Defined | 2025-11-14 | |
| 2025-06-30 | $425,040 | 18,400 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $28,439,010 | 1,231,126 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $450,900 | 16,700 | Put | Defined | 2025-05-15 | |
| 2025-03-31 | $19,079,928 | 706,664 | Shares | Defined | 2025-05-15 | |
| 2025-03-31 | $702,000 | 26,000 | Call | Defined | 2025-05-15 | |
| 2024-12-31 | $1,927,440 | 36,000 | Put | Defined | 2025-02-14 | |
| 2024-12-31 | $72,861,407 | 1,360,878 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $422,966 | 7,900 | Call | Defined | 2025-02-14 | |
| 2024-09-30 | $45,873,759 | 1,009,768 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $240,779 | 5,300 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $2,321,473 | 51,100 | Put | Defined | 2024-11-14 | |
| 2024-06-30 | $65,227,589 | 1,557,116 | Shares | Defined | 2024-08-14 | |
| 2024-06-30 | $75,402 | 1,800 | Call | Defined | 2024-08-14 | |
| 2024-06-30 | $1,231,566 | 29,400 | Put | Defined | 2024-08-14 | |
| 2024-03-31 | $1,957,800 | 52,000 | Put | Defined | 2024-05-15 | |
| 2024-03-31 | $512,040 | 13,600 | Call | Defined | 2024-05-15 | |
| 2024-03-31 | $88,486,460 | 2,350,238 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $7,511 | 700 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $33,479,799 | 3,120,205 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $60,088 | 5,600 | Call | Defined | 2024-02-14 | |
| 2023-09-30 | $34,586,585 | 3,431,209 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $4,032 | 400 | Put | Defined | 2023-11-14 | |
| 2023-09-30 | $24,192 | 2,400 | Call | Defined | 2023-11-14 | |
| 2023-06-30 | $16,618 | 1,400 | Put | Defined | 2023-08-14 | |
| 2023-06-30 | $25,111,862 | 2,115,574 | Shares | Defined | 2023-08-14 | |
| 2023-06-30 | $200,603 | 16,900 | Call | Defined | 2023-08-14 | |
| 2023-03-31 | $25,410 | 2,100 | Put | Defined | 2023-05-15 | |
| 2023-03-31 | $22,421,614 | 1,853,026 | Shares | Defined | 2023-05-15 | |
| 2023-03-31 | $630,410 | 52,100 | Call | Defined | 2023-05-15 | |
| 2022-12-31 | $24,427,860 | 1,854,811 | Shares | Defined | 2023-02-14 | |
| 2022-12-31 | $21,072 | 1,600 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $790,200 | 60,000 | Call | Defined | 2023-02-14 | |
| 2022-09-30 | $25,092,544 | 1,853,216 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $22,630,404 | 1,853,432 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $26,578,214 | 1,853,432 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $36,568,213 | 1,853,432 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $40,215,490 | 1,859,246 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $47,073,464 | 1,886,712 | Shares | Defined | 2021-08-16 | |
| No filing history on record for this holder in this stock. | ||||||