Ionis Pharmaceuticals shares owned by American Century Companies
Quarter-by-quarter ownership of Ionis Pharmaceuticals (IONS) shares owned by American Century Companies
from 13F filings
Historical chart of American Century Companies investment in Ionis Pharmaceuticals
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Quarterly reported holdings in Ionis Pharmaceuticals by American Century Companies
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $90M | 1.4M | 65.42 |
| 2025-06-30 | $19M | 473k | 39.51 |
| 2025-03-31 | $3.5M | 117k | 30.17 |
| 2024-09-30 | $252k | 6.3k | 40.06 |
| 2024-06-30 | $641k | 13k | 47.66 |
| 2024-03-31 | $580k | 13k | 43.35 |
| 2023-09-30 | $589k | 13k | 45.36 |
| 2023-06-30 | $517k | 13k | 41.03 |
| 2023-03-31 | $470k | 13k | 35.74 |
| 2022-12-31 | $1.2M | 31k | 37.77 |
| 2022-09-30 | $446k | 10k | 44.25 |
| 2022-06-30 | $272k | 7.4k | 36.98 |
| 2022-03-31 | $207k | 5.6k | 37.00 |
| 2021-09-30 | $6.7M | 199k | 33.54 |
| 2021-06-30 | $9.0M | 226k | 39.89 |
| 2021-03-31 | $42M | 943k | 44.96 |
| 2020-12-31 | $70M | 1.2M | 56.54 |
| 2020-09-30 | $63M | 1.3M | 47.45 |
| 2020-06-30 | $85M | 1.4M | 58.96 |
| 2020-03-31 | $67M | 1.4M | 47.28 |
| 2019-12-31 | $86M | 1.4M | 60.41 |
| 2019-09-30 | $82M | 1.4M | 59.91 |
| 2019-06-30 | $88M | 1.4M | 64.27 |
| 2019-03-31 | $106M | 1.3M | 81.17 |
| 2018-12-31 | $87M | 1.6M | 54.06 |
| 2018-09-30 | $61M | 1.2M | 51.58 |
| 2018-06-30 | $49M | 1.2M | 41.67 |
| 2018-03-31 | $52M | 1.2M | 44.08 |
| 2017-12-31 | $59M | 1.2M | 50.30 |
| 2017-09-30 | $58M | 1.1M | 50.70 |
| 2017-06-30 | $44M | 860k | 50.87 |
| 2017-03-31 | $35M | 862k | 40.20 |
| 2016-12-31 | $34M | 716k | 47.83 |
| 2016-09-30 | $23M | 635k | 36.64 |
| 2016-06-30 | $15M | 637k | 23.29 |
| 2016-03-31 | $23M | 560k | 40.50 |
| 2015-12-31 | $32M | 510k | 61.93 |
More positions owned by American Century Companies
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