Prothena shares owned by Alliancebernstein
Historical chart of Alliancebernstein investment in Prothena
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All positions including Prothena held by Alliancebernstein consolidated in one spreadsheet with up to 7 years of data
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Quarterly reported holdings in Prothena by Alliancebernstein
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $679k | 70k | 9.76 |
| 2025-06-30 | $532k | 88k | 6.07 |
| 2025-03-31 | $579k | 47k | 12.38 |
| 2024-12-31 | $648k | 47k | 13.85 |
| 2024-09-30 | $782k | 47k | 16.73 |
| 2024-06-30 | $965k | 47k | 20.64 |
| 2024-03-31 | $1.2M | 47k | 24.77 |
| 2023-12-31 | $1.7M | 47k | 36.34 |
| 2023-09-30 | $2.2M | 46k | 48.25 |
| 2023-06-30 | $3.4M | 49k | 68.28 |
| 2023-03-31 | $2.2M | 45k | 48.47 |
| 2022-12-31 | $2.7M | 45k | 60.25 |
| 2022-09-30 | $2.8M | 45k | 60.64 |
| 2022-06-30 | $1.2M | 45k | 27.16 |
| 2022-03-31 | $1.6M | 44k | 36.58 |
| 2021-09-30 | $3.2M | 45k | 71.23 |
| 2021-06-30 | $2.5M | 50k | 51.41 |
| 2021-03-31 | $1.1M | 43k | 25.12 |
| 2020-12-31 | $602k | 50k | 12.01 |
| 2020-09-30 | $550k | 55k | 9.99 |
| 2020-06-30 | $576k | 55k | 10.47 |
| 2020-03-31 | $555k | 52k | 10.71 |
| 2019-12-31 | $821k | 52k | 15.84 |
| 2019-09-30 | $406k | 52k | 7.83 |
| 2019-03-31 | $629k | 52k | 12.13 |
| 2018-12-31 | $578k | 56k | 10.30 |
| 2018-09-30 | $734k | 56k | 13.07 |
| 2018-06-30 | $819k | 56k | 14.59 |
| 2018-03-31 | $42M | 1.1M | 36.71 |
| 2017-12-31 | $38M | 1.0M | 37.49 |
| 2017-09-30 | $59M | 905k | 64.77 |
| 2017-06-30 | $49M | 896k | 54.12 |
| 2017-03-31 | $47M | 839k | 55.79 |
| 2016-12-31 | $41M | 823k | 49.19 |
| 2016-09-30 | $47M | 781k | 59.97 |
| 2016-06-30 | $14M | 390k | 34.96 |
| 2015-12-31 | $17M | 368k | 45.34 |
| 2015-09-30 | $2.1M | 45k | 45.33 |
| 2015-03-31 | $1.4M | 36k | 38.14 |
| 2014-12-31 | $749k | 36k | 20.75 |
| 2014-09-30 | $800k | 36k | 22.16 |
| 2014-06-30 | $604k | 27k | 22.54 |
| 2014-03-31 | $819k | 21k | 38.31 |
| 2013-12-31 | $2.0k | 77 | 25.97 |
| 2013-09-30 | $16k | 777 | 20.59 |
| 2013-06-30 | $16k | 1.3k | 12.68 |