Prothena Corp shares owned by Group One Trading
Quarter-by-quarter ownership of Prothena Corp shares owned by Group One Trading
from 13F filings
Historical chart of Group One Trading investment in Prothena Corp
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Quarterly reported holdings in Prothena Corp by Group One Trading
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $531k | 54k | 9.76 |
| 2025-06-30 | $249k | 41k | 6.07 |
| 2025-03-31 | $238k | 19k | 12.38 |
| 2024-12-31 | $1.5M | 109k | 13.85 |
| 2024-09-30 | $42k | 2.5k | 16.73 |
| 2024-06-30 | $62k | 3.0k | 20.64 |
| 2024-03-31 | $585k | 24k | 24.77 |
| 2023-09-30 | $53k | 1.1k | 48.25 |
| 2023-06-30 | $239k | 3.5k | 68.28 |
| 2023-03-31 | $92k | 1.9k | 48.47 |
| 2022-12-31 | $1.0M | 17k | 60.25 |
| 2022-09-30 | $4.0M | 66k | 60.63 |
| 2022-06-30 | $1.8M | 68k | 27.15 |
| 2022-03-31 | $2.8M | 78k | 36.57 |
| 2021-12-31 | $593k | 12k | 49.42 |
| 2021-09-30 | $192k | 2.7k | 71.11 |
| 2021-06-30 | $416k | 8.1k | 51.36 |
| 2021-03-31 | $342k | 14k | 25.15 |
| 2020-12-31 | $295k | 25k | 11.99 |
| 2020-09-30 | $241k | 24k | 10.00 |
| 2020-03-31 | $10k | 900 | 11.11 |
| 2019-12-31 | $101k | 6.4k | 15.78 |
| 2019-06-30 | $14k | 1.3k | 10.77 |
| 2018-12-31 | $698k | 68k | 10.29 |
| 2018-09-30 | $292k | 22k | 13.09 |
| 2018-06-30 | $471k | 32k | 14.58 |
| 2018-03-31 | $1.9M | 53k | 36.71 |
| 2017-12-31 | $127k | 3.4k | 37.35 |
| 2017-09-30 | $117k | 1.8k | 65.00 |
| 2017-06-30 | $162k | 3.0k | 54.00 |
| 2017-03-31 | $1.2M | 21k | 55.79 |
| 2016-12-31 | $994k | 20k | 49.21 |
| 2016-09-30 | $1.0M | 18k | 59.94 |
| 2016-06-30 | $1.1M | 31k | 34.95 |
| 2016-03-31 | $823k | 20k | 41.15 |
| 2015-12-31 | $1.7M | 25k | 68.11 |
| 2015-09-30 | $2.3M | 52k | 45.34 |
| 2015-06-30 | $1.6M | 30k | 52.68 |
| 2015-03-31 | $179k | 4.7k | 38.09 |
| 2014-12-31 | $255k | 12k | 20.73 |
| 2014-09-30 | $425k | 19k | 22.14 |
| 2014-06-30 | $381k | 17k | 22.54 |
| 2014-03-31 | $678k | 18k | 38.31 |
| 2013-12-31 | $1.2M | 46k | 26.52 |
| 2013-09-30 | $101k | 5.0k | 20.20 |
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