SUSQUEHANNA INTERNATIONAL GROUP, LLP
Position in STRO — Sutro Biopharma, Inc.
CIK 1446194
BALA CYNWYD, PA
Position in STRO
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$279,743
-$1,835,165 QoQ
Shares Held
8,426
-90.1% QoQ
Ownership
0.051%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#64
of 97 holders
Holding Since
Dec 2020
21 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in STRO Over Time
Shares Held
Position Value (USD)
Derivatives in STRO
reported options exposure · as of Jun 30, 2026CallValue
$368,520
CallShares
11,100
PutValue
$365,200
PutShares
11,000
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, 2026SUSQUEHANNA INTERNATIONAL GROUP, LLP holds $1,650,012,247 across 349 Biotechnology names. STRO ranks #207 (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 STRO
Export CSV
32 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $368,520 | 11,100 | Call | Other | 2026-08-14 | |
| 2026-06-30 | $279,743 | 8,426 | Shares | Other | 2026-08-14 | |
| 2026-06-30 | $365,200 | 11,000 | Put | Other | 2026-08-14 | |
| 2026-03-31 | $911,706 | 36,600 | Put | Other | 2026-05-15 | |
| 2026-03-31 | $2,114,908 | 84,902 | Shares | Other | 2026-05-15 | |
| 2025-09-30 | $90,124 | 103,592 | Shares | Other | 2025-11-14 | |
| 2025-06-30 | $174,096 | 245,206 | Shares | Other | 2025-08-14 | |
| 2025-03-31 | $66,522 | 102,342 | Shares | Other | 2025-05-14 | |
| 2024-12-31 | $31,280 | 17,000 | Put | Other | 2025-02-14 | |
| 2024-12-31 | $135,182 | 73,469 | Shares | Other | 2025-02-14 | |
| 2024-09-30 | $285,072 | 82,391 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $70,238 | 20,300 | Put | Defined | 2024-11-14 | |
| 2024-06-30 | $183,212 | 62,530 | Shares | Defined | 2024-08-15 | |
| 2024-06-30 | $70,027 | 23,900 | Put | Defined | 2024-08-15 | |
| 2024-03-31 | $282,748 | 50,044 | Shares | Defined | 2024-05-07 | |
| 2023-12-31 | $159,746 | 37,237 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $417,805 | 120,405 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $627,670 | 134,983 | Shares | Defined | 2023-08-11 | |
| 2023-03-31 | $729,210 | 157,838 | Shares | Defined | 2023-05-16 | |
| 2022-09-30 | $86,441 | 15,575 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $108,633 | 20,851 | Shares | Defined | 2022-08-15 | |
| 2022-06-30 | $353,759 | 67,900 | Call | Defined | 2022-08-15 | |
| 2022-03-31 | $352,670 | 42,904 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $561,839 | 37,758 | Shares | Defined | 2022-04-05 | |
| 2021-09-30 | $555,025 | 29,382 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $801,637 | 43,122 | Shares | Defined | 2021-08-11 | |
| 2021-06-30 | $211,926 | 11,400 | Put | Defined | 2021-08-11 | |
| 2021-03-31 | $350,504 | 15,400 | Put | Defined | 2021-05-17 | |
| 2021-03-31 | $1,515,247 | 66,575 | Shares | Defined | 2021-05-17 | |
| 2021-03-31 | $377,816 | 16,600 | Call | Defined | 2021-05-17 | |
| 2020-12-31 | $1,146,288 | 52,800 | Call | Defined | 2021-02-16 | |
| 2020-12-31 | $690,378 | 31,800 | Put | Defined | 2021-02-16 | |
| No filing history on record for this holder in this stock. | ||||||