Prothena shares owned by Caption Management
Historical chart of Caption Management investment in Prothena
Tip: Access up to 7 years of quarterly data
All positions including Prothena held by Caption Management consolidated in one spreadsheet with up to 7 years of data
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Quarterly reported holdings in Prothena by Caption Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $1.6M | 161k | 9.76 |
| 2025-06-30 | $1.0M | 165k | 6.07 |
| 2024-12-31 | $1.5M | 112k | 13.85 |
| 2023-12-31 | $8.3M | 229k | 36.34 |
| 2023-09-30 | $3.1M | 64k | 48.25 |
| 2023-06-30 | $2.0M | 30k | 68.28 |
| 2022-12-31 | $2.1M | 35k | 60.25 |
| 2022-09-30 | $7.6M | 125k | 60.62 |
| 2021-06-30 | $1.5M | 30k | 51.37 |
| 2021-03-31 | $781k | 31k | 25.20 |