Prothena shares owned by Quantbot Technologies
Quarter-by-quarter ownership of Prothena (PRTA) shares owned by Quantbot Technologies
from 13F filings
Historical chart of Quantbot Technologies investment in Prothena
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All positions including Prothena held by Quantbot Technologies consolidated in one spreadsheet with up to 7 years of data
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Quarterly reported holdings in Prothena by Quantbot Technologies
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2026-06-30 | $16k | 1.6k | 9.79 |
| 2024-03-31 | $32k | 1.3k | 24.77 |
| 2021-12-31 | $263k | 5.3k | 49.27 |
| 2021-09-30 | $42k | 600 | 70.00 |
| 2021-03-31 | $61k | 2.5k | 24.89 |
| 2020-12-31 | $25k | 2.1k | 11.90 |
| 2019-06-30 | $57k | 5.4k | 10.56 |
| 2018-09-30 | $112k | 8.6k | 13.03 |
| 2018-06-30 | $113k | 7.8k | 14.49 |
| 2018-03-31 | $110k | 3.0k | 36.63 |
| 2017-12-31 | $179k | 4.8k | 37.34 |
| 2017-09-30 | $6.0k | 107 | 56.07 |
| 2017-06-30 | $101k | 1.9k | 54.01 |
| 2017-03-31 | $13k | 242 | 53.72 |
| 2016-09-30 | $24k | 412 | 58.25 |
| 2016-06-30 | $19k | 552 | 34.42 |
| 2015-03-31 | $75k | 2.0k | 38.05 |
| 2014-03-31 | $45k | 1.2k | 37.50 |