SUSQUEHANNA INTERNATIONAL GROUP, LLP
Position in PRTA — Prothena Corp Public Ltd Co
CIK 1446194
BALA CYNWYD, PA
Position in PRTA
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$0
-$172,938 QoQ
Shares Held
0
-100.0% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
26 quarters on record
Common Shares in PRTA Over Time
Shares Held
Position Value (USD)
Derivatives in PRTA
reported options exposure · as of Jun 30, 2026CallValue
$4,120,611
CallShares
420,900
PutValue
$646,140
PutShares
66,000
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.
| # | 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 PRTA
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $646,140 | 66,000 | Put | Other | 2026-08-14 | |
| 2026-06-30 | $4,120,611 | 420,900 | Call | Other | 2026-08-14 | |
| 2026-03-31 | $1,341,360 | 138,000 | Call | Other | 2026-05-15 | |
| 2026-03-31 | $172,938 | 17,792 | Shares | Other | 2026-05-15 | |
| 2026-03-31 | $273,132 | 28,100 | Put | Other | 2026-05-15 | |
| 2025-12-31 | $2,261,440 | 236,800 | Call | Other | 2026-02-17 | |
| 2025-12-31 | $2,984,375 | 312,500 | Put | Other | 2026-02-17 | |
| 2025-12-31 | $152,561 | 15,975 | Shares | Other | 2026-02-17 | |
| 2025-09-30 | $1,536,682 | 157,447 | Shares | Other | 2025-11-14 | |
| 2025-09-30 | $3,580,944 | 366,900 | Call | Other | 2025-11-14 | |
| 2025-09-30 | $7,225,328 | 740,300 | Put | Other | 2025-11-14 | |
| 2025-06-30 | $2,910,565 | 479,500 | Put | Other | 2025-08-14 | |
| 2025-06-30 | $558,136 | 91,950 | Shares | Other | 2025-08-14 | |
| 2025-06-30 | $2,330,273 | 383,900 | Call | Other | 2025-08-14 | |
| 2025-03-31 | $955,882 | 77,243 | Shares | Other | 2025-05-14 | |
| 2025-03-31 | $339,075 | 27,400 | Put | Other | 2025-05-14 | |
| 2025-03-31 | $379,912 | 30,700 | Call | Other | 2025-05-14 | |
| 2024-12-31 | $3,559,450 | 257,000 | Call | Other | 2025-02-14 | |
| 2024-12-31 | $540,150 | 39,000 | Put | Other | 2025-02-14 | |
| 2024-12-31 | $349,975 | 25,269 | Shares | Other | 2025-02-14 | |
| 2024-09-30 | $923,496 | 55,200 | Put | Defined | 2024-11-14 | |
| 2024-09-30 | $1,888,817 | 112,900 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $793,554 | 47,433 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $1,139,328 | 55,200 | Call | Defined | 2024-08-15 | |
| 2024-06-30 | $697,425 | 33,790 | Shares | Defined | 2024-08-15 | |
| 2024-06-30 | $654,288 | 31,700 | Put | Defined | 2024-08-15 | |
| 2024-03-31 | $1,485,703 | 59,980 | Shares | Defined | 2024-05-07 | |
| 2024-03-31 | $2,531,494 | 102,200 | Put | Defined | 2024-05-07 | |
| 2024-03-31 | $2,102,973 | 84,900 | Call | Defined | 2024-05-07 | |
| 2023-12-31 | $1,220,914 | 33,597 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $19,678,110 | 541,500 | Call | Defined | 2024-02-14 | |
| 2023-12-31 | $10,723,934 | 295,100 | Put | Defined | 2024-02-14 | |
| 2023-09-30 | $2,007,440 | 41,605 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $2,060,275 | 42,700 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $844,375 | 17,500 | Put | Defined | 2023-11-14 | |
| 2023-06-30 | $8,541,828 | 125,100 | Call | Defined | 2023-08-11 | |
| 2023-06-30 | $1,538,347 | 22,530 | Shares | Defined | 2023-08-11 | |
| 2023-06-30 | $2,697,060 | 39,500 | Put | Defined | 2023-08-11 | |
| 2023-03-31 | $2,975,621 | 61,391 | Shares | Defined | 2023-05-16 | |
| 2023-03-31 | $4,318,677 | 89,100 | Call | Defined | 2023-05-16 | |
| 2023-03-31 | $765,826 | 15,800 | Put | Defined | 2023-05-16 | |
| 2022-12-31 | $645,759 | 10,718 | Shares | Defined | 2023-02-14 | |
| 2022-12-31 | $6,127,425 | 101,700 | Call | Defined | 2023-02-14 | |
| 2022-12-31 | $4,946,525 | 82,100 | Put | Defined | 2023-02-14 | |
| 2022-09-30 | $6,584,418 | 108,600 | Put | Defined | 2022-11-14 | |
| 2022-09-30 | $7,596,939 | 125,300 | Call | Defined | 2022-11-14 | |
| 2022-09-30 | $5,984,544 | 98,706 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $3,828,150 | 141,000 | Call | Defined | 2022-08-15 | |
| 2022-06-30 | $868,284 | 31,981 | Shares | Defined | 2022-08-15 | |
| 2022-06-30 | $836,220 | 30,800 | Put | Defined | 2022-08-15 | |
| No filing history on record for this holder in this stock. | ||||||