Ionis Pharmaceuticals shares owned by William Blair $ Company
Quarter-by-quarter ownership of Ionis Pharmaceuticals (IONS) shares owned by William Blair $ Company
from 13F filings
Historical chart of William Blair $ Company investment in Ionis Pharmaceuticals
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Quarterly reported holdings in Ionis Pharmaceuticals by William Blair $ Company
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2024-03-31 | $1.2M | 28k | 43.35 |
| 2023-12-31 | $841k | 17k | 50.59 |
| 2023-09-30 | $741k | 16k | 45.36 |
| 2023-06-30 | $672k | 16k | 41.03 |
| 2023-03-31 | $523k | 15k | 35.74 |
| 2022-12-31 | $553k | 15k | 37.77 |
| 2022-09-30 | $657k | 15k | 44.26 |
| 2022-06-30 | $541k | 15k | 37.04 |
| 2022-03-31 | $546k | 15k | 37.07 |
| 2021-12-31 | $440k | 15k | 30.42 |
| 2021-09-30 | $487k | 15k | 33.55 |
| 2021-06-30 | $410k | 10k | 39.85 |
| 2021-03-31 | $502k | 11k | 44.97 |
| 2020-12-31 | $857k | 15k | 56.52 |
| 2020-09-30 | $717k | 15k | 47.42 |
| 2020-06-30 | $921k | 16k | 58.97 |
| 2020-03-31 | $762k | 16k | 47.30 |
| 2019-12-31 | $986k | 16k | 60.42 |
| 2019-09-30 | $873k | 15k | 59.88 |
| 2019-06-30 | $911k | 14k | 64.26 |
| 2019-03-31 | $1.2M | 15k | 81.19 |
| 2018-12-31 | $783k | 15k | 54.04 |
| 2018-09-30 | $747k | 15k | 51.60 |
| 2018-06-30 | $603k | 15k | 41.66 |
| 2018-03-31 | $259k | 5.9k | 44.08 |
| 2017-12-31 | $320k | 6.4k | 50.36 |
| 2017-09-30 | $277k | 5.5k | 50.79 |
| 2017-06-30 | $274k | 5.4k | 50.92 |
| 2017-03-31 | $258k | 5.4k | 47.95 |
| 2016-12-31 | $257k | 5.4k | 47.76 |
| 2016-03-31 | $219k | 5.4k | 40.43 |
| 2015-12-31 | $353k | 5.7k | 61.80 |