Prothena shares owned by Swiss National Bank
Quarter-by-quarter ownership of Prothena (PRTA) shares owned by Swiss National Bank
from 13F filings
Historical chart of Swiss National Bank investment in Prothena
Tip: Access up to 7 years of quarterly data
All positions including Prothena held by Swiss National Bank consolidated in one spreadsheet with up to 7 years of data
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Quarterly reported holdings in Prothena by Swiss National Bank
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2023-12-31 | $2.9M | 79k | 36.34 |
| 2023-09-30 | $4.2M | 87k | 48.25 |
| 2023-06-30 | $5.9M | 86k | 68.28 |
| 2023-03-31 | $3.5M | 73k | 48.47 |
| 2022-12-31 | $4.8M | 79k | 60.25 |
| 2022-09-30 | $4.7M | 77k | 60.63 |
| 2022-06-30 | $2.1M | 77k | 27.15 |
| 2022-03-31 | $2.8M | 77k | 36.57 |
| 2021-12-31 | $3.4M | 69k | 49.39 |
| 2021-09-30 | $4.9M | 68k | 71.23 |
| 2021-06-30 | $3.2M | 62k | 51.41 |
| 2021-03-31 | $1.5M | 59k | 25.13 |
| 2020-12-31 | $695k | 58k | 12.00 |
| 2020-09-30 | $578k | 58k | 9.98 |
| 2020-06-30 | $606k | 58k | 10.47 |
| 2020-03-31 | $828k | 77k | 10.70 |
| 2019-12-31 | $1.2M | 76k | 15.82 |
| 2019-09-30 | $582k | 74k | 7.84 |
| 2019-06-30 | $784k | 74k | 10.57 |
| 2019-03-31 | $881k | 73k | 12.13 |
| 2018-12-31 | $725k | 70k | 10.30 |
| 2018-09-30 | $869k | 66k | 13.09 |
| 2018-06-30 | $968k | 66k | 14.58 |
| 2018-03-31 | $2.4M | 66k | 36.72 |
| 2017-12-31 | $2.5M | 66k | 37.48 |
| 2017-09-30 | $4.1M | 64k | 64.76 |
| 2017-06-30 | $3.4M | 62k | 54.13 |
| 2017-03-31 | $3.5M | 62k | 55.79 |
| 2016-12-31 | $2.3M | 48k | 49.20 |
| 2016-09-30 | $2.8M | 48k | 59.98 |
| 2016-06-30 | $1.7M | 50k | 34.97 |
| 2016-03-31 | $2.0M | 49k | 39.80 |
| 2015-12-31 | $2.9M | 43k | 68.12 |
| 2015-09-30 | $2.0M | 43k | 45.35 |
| 2015-06-30 | $2.0M | 37k | 52.68 |
| 2015-03-31 | $1.3M | 34k | 38.15 |
| 2014-12-31 | $695k | 34k | 20.75 |