Prothena shares owned by Two Sigma Investments
Quarter-by-quarter ownership of Prothena (PRTA) shares owned by Two Sigma Investments
from 13F filings
Historical chart of Two Sigma Investments investment in Prothena
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Quarterly reported holdings in Prothena by Two Sigma Investments
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $4.2M | 427k | 9.76 |
| 2025-06-30 | $1.2M | 202k | 6.07 |
| 2025-03-31 | $198k | 16k | 12.38 |
| 2024-12-31 | $532k | 38k | 13.85 |
| 2024-09-30 | $176k | 11k | 16.73 |
| 2024-06-30 | $1.5M | 72k | 20.64 |
| 2023-09-30 | $6.6M | 136k | 48.25 |
| 2023-06-30 | $11M | 163k | 68.28 |
| 2023-03-31 | $18M | 366k | 48.47 |
| 2022-12-31 | $12M | 203k | 60.25 |
| 2022-09-30 | $8.2M | 136k | 60.63 |
| 2022-06-30 | $6.3M | 230k | 27.15 |
| 2022-03-31 | $9.6M | 261k | 36.57 |
| 2021-12-31 | $15M | 302k | 49.40 |
| 2021-09-30 | $23M | 321k | 71.23 |
| 2021-06-30 | $17M | 337k | 51.41 |
| 2021-03-31 | $7.4M | 296k | 25.12 |
| 2020-12-31 | $607k | 51k | 12.00 |
| 2020-09-30 | $997k | 100k | 9.99 |
| 2020-06-30 | $1.2M | 114k | 10.46 |
| 2020-03-31 | $881k | 82k | 10.70 |
| 2019-12-31 | $2.3M | 147k | 15.83 |
| 2019-09-30 | $949k | 121k | 7.84 |
| 2019-06-30 | $3.9M | 368k | 10.57 |
| 2019-03-31 | $4.9M | 402k | 12.13 |
| 2018-12-31 | $3.7M | 364k | 10.30 |
| 2018-09-30 | $3.7M | 286k | 13.08 |
| 2018-06-30 | $2.6M | 176k | 14.58 |
| 2017-12-31 | $472k | 13k | 37.48 |
| 2015-12-31 | $1.8M | 26k | 68.10 |
| 2015-09-30 | $210k | 4.6k | 45.43 |
| 2015-06-30 | $5.9M | 112k | 52.67 |
| 2014-06-30 | $1.8M | 79k | 22.55 |
| 2014-03-31 | $2.5M | 66k | 38.31 |
| 2013-12-31 | $472k | 18k | 26.53 |