Prothena shares owned by Jane Street
Historical chart of Jane Street investment in Prothena
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All positions including Prothena held by Jane Street consolidated in one spreadsheet with up to 7 years of data
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Quarterly reported holdings in Prothena by Jane Street
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $8.6M | 879k | 9.76 |
| 2025-06-30 | $1.9M | 317k | 6.07 |
| 2025-03-31 | $1.8M | 147k | 12.38 |
| 2024-12-31 | $1.2M | 84k | 13.85 |
| 2024-09-30 | $1.8M | 107k | 16.73 |
| 2024-06-30 | $2.5M | 122k | 20.64 |
| 2024-03-31 | $1.3M | 54k | 24.77 |
| 2023-12-31 | $6.7M | 185k | 36.34 |
| 2023-09-30 | $302k | 6.3k | 48.25 |
| 2023-06-30 | $3.7M | 54k | 68.28 |
| 2023-03-31 | $940k | 19k | 48.47 |
| 2022-06-30 | $684k | 25k | 27.16 |
| 2022-03-31 | $3.1M | 85k | 36.57 |
| 2021-12-31 | $2.2M | 45k | 49.41 |
| 2021-09-30 | $12M | 163k | 71.20 |
| 2021-06-30 | $6.4M | 125k | 51.41 |
| 2021-03-31 | $939k | 37k | 25.11 |
| 2020-09-30 | $236k | 24k | 10.00 |
| 2020-06-30 | $470k | 45k | 10.47 |
| 2018-12-31 | $176k | 17k | 10.29 |
| 2018-06-30 | $152k | 10k | 14.59 |
| 2018-03-31 | $978k | 27k | 36.72 |
| 2017-09-30 | $404k | 6.2k | 64.77 |
| 2017-06-30 | $292k | 5.4k | 54.07 |
| 2017-03-31 | $487k | 8.7k | 55.78 |
| 2015-12-31 | $232k | 3.4k | 68.20 |