Ionis Pharmaceuticals shares owned by ARK Investment Management
Quarter-by-quarter ownership of Ionis Pharmaceuticals (IONS) shares owned by ARK Investment Management
from 13F filings
Historical chart of ARK Investment Management investment in Ionis Pharmaceuticals
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Quarterly reported holdings in Ionis Pharmaceuticals by ARK Investment Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $41M | 631k | 65.42 |
| 2025-06-30 | $36M | 900k | 39.51 |
| 2025-03-31 | $30M | 1.0M | 30.17 |
| 2024-12-31 | $36M | 1.0M | 34.96 |
| 2024-09-30 | $56M | 1.4M | 40.06 |
| 2024-06-30 | $65M | 1.4M | 47.66 |
| 2024-03-31 | $61M | 1.4M | 43.35 |
| 2023-12-31 | $96M | 1.9M | 50.59 |
| 2023-09-30 | $107M | 2.4M | 45.36 |
| 2023-06-30 | $99M | 2.4M | 41.03 |
| 2023-03-31 | $94M | 2.6M | 35.74 |
| 2022-12-31 | $101M | 2.7M | 37.77 |
| 2022-09-30 | $164M | 3.7M | 44.23 |
| 2022-06-30 | $172M | 4.7M | 36.52 |
| 2022-03-31 | $229M | 6.2M | 37.04 |
| 2021-12-31 | $216M | 7.1M | 30.43 |
| 2021-09-30 | $286M | 8.5M | 33.54 |
| 2021-06-30 | $355M | 8.9M | 39.89 |
| 2021-03-31 | $231M | 5.1M | 44.96 |
| 2020-12-31 | $136M | 2.4M | 56.54 |
| 2020-09-30 | $24M | 503k | 47.45 |
| 2020-06-30 | $20M | 344k | 58.96 |
| 2020-03-31 | $5.7M | 120k | 47.28 |
| 2019-12-31 | $13M | 216k | 60.41 |
| 2019-09-30 | $12M | 197k | 59.91 |
| 2019-06-30 | $10M | 158k | 64.27 |
| 2019-03-31 | $13M | 165k | 81.17 |
| 2018-12-31 | $13M | 242k | 54.06 |
| 2018-09-30 | $12M | 229k | 51.58 |
| 2018-06-30 | $8.9M | 213k | 41.67 |
| 2018-03-31 | $16M | 352k | 44.08 |
| 2017-12-31 | $19M | 371k | 50.30 |
| 2017-06-30 | $9.0M | 177k | 50.87 |
| 2017-03-31 | $5.1M | 128k | 40.20 |
| 2016-12-31 | $317k | 6.6k | 47.88 |