Position in ATYR
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$741,513
+$704,563 QoQ
Shares Held
1,242,067
+2521.9% QoQ
Ownership
1.27%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#12
of 90 holders
Holding Since
Mar 2020
24 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
$148,653
CallShares
249,000
PutValue
$34,148
PutShares
57,200
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 Jun 30, 2026CITADEL ADVISORS LLC holds $6,088,670,159 across 436 Biotechnology names. ATYR ranks #254 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ONC |
BeOne Medicines Ltd.
|
1,425,517 | $406,229,578 | |
| 2 | BBIO |
BridgeBio Pharma, Inc.
|
3,760,028 | $280,046,885 | |
| 3 | INSM |
INSMED Inc
|
2,556,973 | $272,624,460 | |
| 4 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
507,233 | $272,358,759 | |
| 5 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
510,430 | $253,545,893 | |
| 6 | JAZZ |
Jazz Pharmaceuticals plc
|
1,006,676 | $242,578,715 | |
| 7 | MANE |
Veradermics, Inc
|
1,877,775 | $230,853,658 | |
| 8 | ROIV |
Roivant Sciences Ltd.
|
5,576,261 | $197,343,876 |
All Filings in ATYR
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $148,653 | 249,000 | Call | Defined | 2026-08-14 | |
| 2026-06-30 | $741,513 | 1,242,067 | Shares | Defined | 2026-08-14 | |
| 2026-06-30 | $34,148 | 57,200 | Put | Defined | 2026-08-14 | |
| 2026-03-31 | $84,396 | 108,200 | Call | Defined | 2026-05-15 | |
| 2026-03-31 | $37,284 | 47,800 | Put | Defined | 2026-05-15 | |
| 2026-03-31 | $36,950 | 47,372 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $99,597 | 127,200 | Call | Defined | 2026-02-17 | |
| 2025-12-31 | $198,725 | 253,800 | Put | Defined | 2026-02-17 | |
| 2025-09-30 | $460,863 | 639,200 | Put | Defined | 2025-11-14 | |
| 2025-09-30 | $144,055 | 199,800 | Call | Defined | 2025-11-14 | |
| 2025-06-30 | $775,203 | 152,900 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $603,923 | 119,117 | Shares | Defined | 2025-08-14 | |
| 2025-06-30 | $965,328 | 190,400 | Call | Defined | 2025-08-14 | |
| 2025-03-31 | $68,252 | 22,600 | Call | Defined | 2025-05-15 | |
| 2025-03-31 | $337,636 | 111,800 | Put | Defined | 2025-05-15 | |
| 2025-03-31 | $788,241 | 261,007 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $44,746 | 12,361 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $100,636 | 27,800 | Call | Defined | 2025-02-14 | |
| 2024-12-31 | $58,282 | 16,100 | Put | Defined | 2025-02-14 | |
| 2024-09-30 | $27,280 | 15,500 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $1,701,227 | 966,607 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $5,456 | 3,100 | Put | Defined | 2024-11-14 | |
| 2024-06-30 | $7,176 | 4,600 | Put | Defined | 2024-08-14 | |
| 2024-06-30 | $2,878,608 | 1,845,262 | Shares | Defined | 2024-08-14 | |
| 2024-06-30 | $312 | 200 | Call | Defined | 2024-08-14 | |
| 2024-03-31 | $14,625 | 7,500 | Call | Defined | 2024-05-15 | |
| 2024-03-31 | $3,711,524 | 1,903,346 | Shares | Defined | 2024-05-15 | |
| 2024-03-31 | $6,240 | 3,200 | Put | Defined | 2024-05-15 | |
| 2023-12-31 | $987 | 700 | Call | Defined | 2024-02-14 | |
| 2023-12-31 | $2,472,575 | 1,753,600 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $705 | 500 | Put | Defined | 2024-02-14 | |
| 2023-09-30 | $2,818,933 | 1,784,136 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $12,324 | 7,800 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $5,530 | 3,500 | Put | Defined | 2023-11-14 | |
| 2023-06-30 | $29,160 | 13,500 | Put | Defined | 2023-08-14 | |
| 2023-06-30 | $691,394 | 320,090 | Shares | Defined | 2023-08-14 | |
| 2023-06-30 | $20,952 | 9,700 | Call | Defined | 2023-08-14 | |
| 2023-03-31 | $13,860 | 6,600 | Call | Defined | 2023-05-15 | |
| 2023-03-31 | $85,950 | 40,929 | Shares | Defined | 2023-05-15 | |
| 2023-03-31 | $6,720 | 3,200 | Put | Defined | 2023-05-15 | |
| 2022-12-31 | $4,380 | 2,000 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $82,862 | 37,837 | Shares | Defined | 2023-02-14 | |
| 2022-12-31 | $6,351 | 2,900 | Call | Defined | 2023-02-14 | |
| 2022-09-30 | $56,400 | 18,800 | Call | Defined | 2022-11-14 | |
| 2022-06-30 | $76,693 | 27,100 | Put | Defined | 2022-08-15 | |
| 2022-06-30 | $38,205 | 13,500 | Call | Defined | 2022-08-15 | |
| 2022-03-31 | $855,576 | 159,921 | Shares | Defined | 2022-05-16 | |
| 2022-03-31 | $146,055 | 27,300 | Call | Defined | 2022-05-16 | |
| 2022-03-31 | $215,605 | 40,300 | Put | Defined | 2022-05-16 | |
| 2021-12-31 | $259,956 | 34,800 | Put | Defined | 2022-02-14 | |
| No filing history on record for this holder in this stock. | ||||||