Prothena shares owned by Oppenheimer & Co
Historical chart of Oppenheimer & Co investment in Prothena
Tip: Access up to 7 years of quarterly data
All positions including Prothena held by Oppenheimer & Co consolidated in one spreadsheet with up to 7 years of data
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Quarterly reported holdings in Prothena by Oppenheimer & Co
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $114k | 12k | 9.76 |
| 2025-06-30 | $113k | 19k | 6.07 |
| 2023-09-30 | $382k | 7.9k | 48.25 |
| 2023-06-30 | $520k | 7.6k | 68.28 |
| 2023-03-31 | $352k | 7.3k | 48.47 |
| 2021-12-31 | $225k | 4.5k | 49.46 |
| 2021-09-30 | $339k | 4.8k | 71.17 |
| 2018-09-30 | $140k | 11k | 13.08 |
| 2018-06-30 | $166k | 12k | 14.49 |
| 2018-03-31 | $284k | 7.8k | 36.62 |
| 2014-09-30 | $245k | 11k | 22.21 |