Prothena Corp shares owned by Simplex Trading
Quarter-by-quarter ownership of Prothena Corp shares owned by Simplex Trading
from 13F filings
Historical chart of Simplex Trading investment in Prothena Corp
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Quarterly reported holdings in Prothena Corp by Simplex Trading
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $2.6M | 265k | 9.76 |
| 2025-06-30 | $980k | 162k | 6.07 |
| 2025-03-31 | $6.0k | 500 | 12.00 |
| 2024-12-31 | $317k | 23k | 13.84 |
| 2024-09-30 | $185k | 11k | 16.67 |
| 2024-06-30 | $187k | 9.1k | 20.55 |
| 2024-03-31 | $532k | 22k | 24.74 |
| 2023-12-31 | $3.0M | 83k | 36.34 |
| 2023-09-30 | $9.0k | 200 | 45.00 |
| 2023-06-30 | $901k | 13k | 68.26 |
| 2023-03-31 | $252k | 5.2k | 48.46 |
| 2022-12-31 | $1.5M | 26k | 60.23 |
| 2022-09-30 | $4.7M | 78k | 60.63 |
| 2022-06-30 | $48k | 1.8k | 26.67 |
| 2021-12-31 | $343k | 6.5k | 52.77 |
| 2021-09-30 | $343k | 6.5k | 52.77 |
| 2021-06-30 | $334k | 6.5k | 51.38 |
| 2021-03-31 | $55 | 22 | 2.50 |
| 2020-12-31 | $14 | 12 | 1.17 |
| 2020-09-30 | $298 | 299 | 1.00 |
| 2020-06-30 | $292 | 280 | 1.04 |
| 2020-03-31 | $19 | 18 | 1.06 |
| 2019-12-31 | $31 | 20 | 1.55 |
| 2019-09-30 | $9 | 12 | 0.75 |
| 2019-06-30 | $12 | 12 | 1.00 |
| 2019-03-31 | $12 | 10 | 1.20 |
| 2018-12-31 | $444 | 433 | 1.03 |
| 2018-09-30 | $990 | 757 | 1.31 |
| 2018-06-30 | $805 | 553 | 1.46 |
| 2018-03-31 | $77k | 153 | 503.27 |
| 2017-12-31 | $188k | 137 | 1372.26 |
| 2017-09-30 | $34k | 399 | 85.21 |
| 2017-06-30 | $24k | 87 | 275.86 |
| 2017-03-31 | $37k | 163 | 226.99 |
| 2016-12-31 | $70k | 106 | 660.38 |
| 2016-09-30 | $36k | 186 | 193.55 |
| 2016-06-30 | $69k | 58 | 1189.66 |
| 2016-03-31 | $29k | 12 | 2416.67 |
| 2015-12-31 | $228k | 344 | 662.79 |
| 2015-09-30 | $179k | 124 | 1443.55 |
| 2015-06-30 | $1.0k | 21 | 47.62 |
| 2015-03-31 | $56k | 223 | 251.12 |
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