Prothena shares owned by Platinum Investment Mangement
Quarter-by-quarter ownership of Prothena (PRTA) shares owned by Platinum Investment Mangement
from 13F filings
Historical chart of Platinum Investment Mangement investment in Prothena
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Quarterly reported holdings in Prothena by Platinum Investment Mangement
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2024-03-31 | $1.0M | 42k | 24.77 |
| 2023-09-30 | $2.0M | 42k | 48.25 |
| 2023-06-30 | $2.8M | 42k | 68.28 |
| 2023-03-31 | $2.0M | 42k | 48.47 |
| 2022-12-31 | $2.5M | 42k | 60.25 |
| 2022-09-30 | $3.0M | 49k | 60.64 |
| 2022-06-30 | $1.6M | 61k | 27.15 |
| 2022-03-31 | $2.2M | 61k | 36.57 |
| 2021-12-31 | $3.0M | 61k | 49.40 |
| 2021-09-30 | $4.3M | 61k | 71.23 |
| 2021-06-30 | $5.2M | 102k | 51.41 |
| 2021-03-31 | $3.2M | 128k | 25.12 |
| 2020-12-31 | $1.5M | 128k | 12.01 |
| 2020-09-30 | $1.3M | 128k | 9.99 |
| 2020-06-30 | $1.3M | 128k | 10.46 |
| 2020-03-31 | $1.4M | 128k | 10.70 |
| 2019-12-31 | $2.2M | 141k | 15.83 |
| 2019-09-30 | $1.5M | 190k | 7.84 |
| 2019-06-30 | $2.0M | 190k | 10.57 |
| 2019-03-31 | $2.0M | 162k | 12.13 |
| 2018-12-31 | $1.7M | 162k | 10.30 |
| 2018-09-30 | $1.8M | 135k | 13.08 |
| 2018-06-30 | $2.0M | 135k | 14.58 |
| 2018-03-31 | $2.9M | 78k | 36.70 |
| 2017-12-31 | $2.6M | 70k | 37.49 |
| 2017-09-30 | $4.0M | 62k | 64.76 |
| 2017-06-30 | $3.6M | 67k | 54.11 |
| 2017-03-31 | $3.4M | 61k | 55.78 |
| 2016-12-31 | $2.0M | 42k | 49.18 |
| 2016-09-30 | $2.7M | 45k | 59.96 |
| 2016-06-30 | $1.4M | 40k | 34.95 |
More positions owned by Platinum Investment Mangement
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