Position in ATYR
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$445,982
-$230,078 QoQ
Shares Held
747,039
-13.8% QoQ
Ownership
0.762%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#14
of 90 holders
Holding Since
Mar 2020
16 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
$92,415
CallShares
154,800
PutValue
$69,550
PutShares
116,500
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 Jun 30, 2026SUSQUEHANNA INTERNATIONAL GROUP, LLP holds $1,649,997,309 across 349 Biotechnology names. ATYR ranks #166 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ABVX |
Abivax S.A.
|
1,053,896 | $140,442,180 | |
| 2 | CYTK |
Cytokinetics Inc
|
1,549,458 | $131,998,327 | |
| 3 | REGN |
Regeneron Pharmaceuticals, Inc.
|
180,219 | $112,373,755 | |
| 4 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
294,460 | $88,641,293 | |
| 5 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
148,610 | $79,796,139 | |
| 6 | INSM |
INSMED Inc
|
729,354 | $77,763,723 | |
| 7 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
144,174 | $71,615,550 | |
| 8 | AGIO |
Agios Pharmaceuticals, Inc.
|
1,375,558 | $51,046,957 |
All Filings in ATYR
Export CSV
39 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $69,550 | 116,500 | Put | Other | 2026-08-14 | |
| 2026-06-30 | $445,982 | 747,039 | Shares | Other | 2026-08-14 | |
| 2026-06-30 | $92,415 | 154,800 | Call | Other | 2026-08-14 | |
| 2026-03-31 | $676,060 | 866,744 | Shares | Other | 2026-05-15 | |
| 2026-03-31 | $127,062 | 162,900 | Put | Other | 2026-05-15 | |
| 2026-03-31 | $80,106 | 102,700 | Call | Other | 2026-05-15 | |
| 2025-12-31 | $115,962 | 148,100 | Call | Other | 2026-02-17 | |
| 2025-12-31 | $138,199 | 176,500 | Put | Other | 2026-02-17 | |
| 2025-12-31 | $598,793 | 764,743 | Shares | Other | 2026-02-17 | |
| 2025-09-30 | $662,599 | 919,000 | Call | Other | 2025-11-14 | |
| 2025-09-30 | $134,394 | 186,400 | Put | Other | 2025-11-14 | |
| 2025-09-30 | $91,330 | 126,672 | Shares | Other | 2025-11-14 | |
| 2025-06-30 | $605,865 | 119,500 | Put | Other | 2025-08-14 | |
| 2025-06-30 | $1,287,871 | 254,018 | Shares | Other | 2025-08-14 | |
| 2025-06-30 | $1,337,973 | 263,900 | Call | Other | 2025-08-14 | |
| 2025-03-31 | $253,982 | 84,100 | Put | Other | 2025-05-14 | |
| 2025-03-31 | $207,474 | 68,700 | Call | Other | 2025-05-14 | |
| 2025-03-31 | $5,233,904 | 1,733,081 | Shares | Other | 2025-05-14 | |
| 2024-12-31 | $2,851,988 | 787,842 | Shares | Other | 2025-02-14 | |
| 2024-12-31 | $39,458 | 10,900 | Put | Other | 2025-02-14 | |
| 2024-12-31 | $84,346 | 23,300 | Call | Other | 2025-02-14 | |
| 2024-09-30 | $25,872 | 14,700 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $234,483 | 133,229 | Shares | Defined | 2024-11-14 | |
| 2023-06-30 | $119,016 | 55,100 | Put | Defined | 2023-08-11 | |
| 2023-06-30 | $52,704 | 24,400 | Call | Defined | 2023-08-11 | |
| 2023-06-30 | $100,729 | 46,634 | Shares | Defined | 2023-08-11 | |
| 2022-09-30 | $136,626 | 45,542 | Shares | Defined | 2022-11-14 | |
| 2022-09-30 | $295,200 | 98,400 | Put | Defined | 2022-11-14 | |
| 2022-06-30 | $131,705 | 46,539 | Shares | Defined | 2022-08-15 | |
| 2022-06-30 | $310,451 | 109,700 | Put | Defined | 2022-08-15 | |
| 2022-03-31 | $572,985 | 107,100 | Put | Defined | 2022-05-16 | |
| 2022-03-31 | $199,020 | 37,200 | Call | Defined | 2022-05-16 | |
| 2021-12-31 | $225,594 | 30,200 | Put | Defined | 2022-04-05 | |
| 2021-12-31 | $466,128 | 62,400 | Call | Defined | 2022-04-05 | |
| 2021-09-30 | $742,570 | 81,781 | Shares | Defined | 2021-11-15 | |
| 2021-09-30 | $5,370,820 | 591,500 | Call | Defined | 2021-11-15 | |
| 2021-09-30 | $396,796 | 43,700 | Put | Defined | 2021-11-15 | |
| 2021-06-30 | $52,894 | 10,839 | Shares | Defined | 2021-08-11 | |
| 2020-03-31 | $28,750 | 10,268 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||