Prothena shares owned by Simplex Trading
Historical chart of Simplex Trading investment in Prothena
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All positions including Prothena held by Simplex Trading consolidated in one spreadsheet with up to 7 years of data
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Quarterly reported holdings in Prothena by Simplex Trading
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $410k | 42k | 9.75 |
| 2025-06-30 | $262k | 43k | 6.06 |
| 2024-09-30 | $99k | 6.0k | 16.56 |
| 2024-06-30 | $46k | 2.3k | 20.29 |
| 2024-03-31 | $178k | 7.2k | 24.66 |
| 2022-09-30 | $1.4M | 24k | 60.59 |
| 2022-06-30 | $87k | 3.2k | 26.93 |
| 2021-12-31 | $3.0k | 62 | 48.39 |
| 2021-09-30 | $3.0k | 62 | 48.39 |
| 2021-06-30 | $28k | 562 | 49.82 |
| 2021-03-31 | $219 | 8.7k | 0.03 |
| 2020-12-31 | $105 | 8.9k | 0.01 |
| 2020-09-30 | $67 | 6.9k | 0.01 |
| 2020-06-30 | $13 | 1.3k | 0.01 |
| 2020-03-31 | $47 | 4.5k | 0.01 |
| 2019-12-31 | $156 | 9.9k | 0.02 |
| 2019-09-30 | $135 | 17k | 0.01 |
| 2019-06-30 | $195 | 19k | 0.01 |
| 2019-03-31 | $2 | 171 | 0.01 |
| 2018-12-31 | $216 | 21k | 0.01 |
| 2018-09-30 | $262 | 20k | 0.01 |
| 2018-06-30 | $18 | 1.3k | 0.01 |
| 2017-06-30 | $27k | 500 | 54.00 |
| 2017-03-31 | $108k | 2.0k | 55.36 |
| 2016-12-31 | $169k | 3.4k | 49.19 |
| 2015-12-31 | $1.0M | 15k | 68.07 |
| 2015-09-30 | $390k | 8.6k | 45.31 |
| 2015-06-30 | $213k | 4.1k | 52.53 |
| 2015-03-31 | $345k | 9.1k | 38.08 |
| 2014-12-31 | $178k | 8.6k | 20.81 |