Position in ATYR
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$1,027,614
+$989,784 QoQ
Shares Held
1,721,297
+3448.9% QoQ
Ownership
1.75%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#8
of 90 holders
Holding Since
Sep 2021
13 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ATYR Over Time
Shares Held
Position Value (USD)
Derivatives in ATYR
reported options exposure · as of Jun 30, 2026CallValue
$106,624
CallShares
178,600
PutValue
$8,955
PutShares
15,000
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, 2026JANE STREET GROUP, LLC holds $1,364,050,815 across 292 Biotechnology names. ATYR ranks #84 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BBIO |
BridgeBio Pharma, Inc.
|
2,934,193 | $218,538,693 | |
| 2 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
191,541 | $102,847,939 | |
| 3 | AXSM |
Axsome Therapeutics, Inc.
|
403,995 | $98,885,855 | |
| 4 | TGTX |
Tg Therapeutics, Inc.
|
1,752,646 | $96,290,370 | |
| 5 | EXEL |
Exelixis, Inc.
|
1,402,438 | $76,306,651 | |
| 6 | QURE |
uniQure N.V.
|
1,610,483 | $74,178,846 | |
| 7 | HALO |
Halozyme Therapeutics, Inc.
|
694,684 | $54,372,915 | |
| 8 | TVTX |
Travere Therapeutics, Inc.
|
938,699 | $53,327,489 |
All Filings in ATYR
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,027,614 | 1,721,297 | Shares | Defined | 2026-08-14 | |
| 2026-06-30 | $106,624 | 178,600 | Call | Defined | 2026-08-14 | |
| 2026-06-30 | $8,955 | 15,000 | Put | Defined | 2026-08-14 | |
| 2026-03-31 | $353,262 | 452,900 | Call | Defined | 2026-05-12 | |
| 2026-03-31 | $37,830 | 48,502 | Shares | Defined | 2026-05-12 | |
| 2025-12-31 | $35,000 | 44,700 | Put | Defined | 2026-02-12 | |
| 2025-12-31 | $227,461 | 290,500 | Call | Defined | 2026-02-12 | |
| 2025-12-31 | $147,320 | 188,149 | Shares | Defined | 2026-02-12 | |
| 2025-09-30 | $8,796 | 12,200 | Put | Defined | 2025-11-14 | |
| 2025-09-30 | $493,019 | 683,800 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $164,232 | 227,785 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $184,664 | 36,423 | Shares | Defined | 2025-08-14 | |
| 2025-06-30 | $513,084 | 101,200 | Call | Defined | 2025-08-14 | |
| 2025-06-30 | $92,274 | 18,200 | Put | Defined | 2025-08-14 | |
| 2025-03-31 | $243,110 | 80,500 | Put | Defined | 2025-05-19 | |
| 2025-03-31 | $527,009 | 174,507 | Shares | Defined | 2025-05-19 | |
| 2024-12-31 | $720,401 | 199,006 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $41,807 | 23,754 | Shares | Defined | 2024-11-15 | |
| 2024-06-30 | $44,391 | 28,456 | Shares | Defined | 2024-08-15 | |
| 2024-03-31 | $121,172 | 62,140 | Shares | Defined | 2024-05-16 | |
| 2022-06-30 | $28,744 | 10,157 | Shares | Defined | 2022-08-16 | |
| 2021-12-31 | $102,339 | 13,700 | Put | Defined | 2022-02-15 | |
| 2021-09-30 | $1,554,496 | 171,200 | Call | Defined | 2021-11-16 | |
| 2021-09-30 | $1,243,060 | 136,901 | Shares | Defined | 2021-11-16 | |
| 2021-09-30 | $470,344 | 51,800 | Put | Defined | 2021-11-16 | |
| No filing history on record for this holder in this stock. | ||||||