Prothena shares owned by American Century Companies
Quarter-by-quarter ownership of Prothena (PRTA) shares owned by American Century Companies
from 13F filings
Historical chart of American Century Companies investment in Prothena
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Quarterly reported holdings in Prothena by American Century Companies
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2024-09-30 | $306k | 18k | 16.73 |
| 2022-12-31 | $251k | 4.2k | 60.25 |
| 2019-06-30 | $2.8M | 268k | 10.57 |
| 2019-03-31 | $2.5M | 206k | 12.13 |
| 2018-12-31 | $204k | 20k | 10.32 |
| 2017-12-31 | $1.3M | 33k | 37.48 |
| 2017-09-30 | $1.6M | 24k | 64.76 |
| 2017-06-30 | $1.1M | 21k | 54.12 |
| 2017-03-31 | $1.3M | 23k | 55.79 |
| 2016-12-31 | $1.9M | 39k | 49.19 |
| 2016-09-30 | $2.6M | 43k | 59.96 |
| 2016-06-30 | $1.7M | 48k | 34.95 |
| 2016-03-31 | $1.7M | 42k | 41.16 |
| 2015-12-31 | $2.8M | 41k | 68.11 |
| 2015-09-30 | $1.4M | 30k | 45.35 |
| 2015-03-31 | $3.2M | 85k | 38.14 |
| 2014-12-31 | $4.0M | 193k | 20.76 |
| 2014-09-30 | $3.9M | 175k | 22.16 |
| 2014-06-30 | $1.5M | 67k | 22.54 |
More positions owned by American Century Companies
View all positions for American Century Companies