Prothena shares owned by Virtus Investment Advisers
Quarter-by-quarter ownership of Prothena (PRTA) shares owned by Virtus Investment Advisers
from 13F filings
Historical chart of Virtus Investment Advisers investment in Prothena
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Quarterly reported holdings in Prothena by Virtus Investment Advisers
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-12-31 | $245k | 26k | 9.55 |
| 2025-09-30 | $219k | 22k | 9.76 |
| 2025-06-30 | $113k | 19k | 6.07 |
| 2025-03-31 | $147k | 12k | 12.38 |
More positions owned by Virtus Investment Advisers
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