Ionis Pharmaceuticals shares owned by Westmount Partners
Quarter-by-quarter ownership of Ionis Pharmaceuticals (IONS) shares owned by Westmount Partners
from 13F filings
Historical chart of Westmount Partners investment in Ionis Pharmaceuticals
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Quarterly reported holdings in Ionis Pharmaceuticals by Westmount Partners
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $853k | 13k | 65.80 |
| 2025-06-30 | $512k | 13k | 39.51 |
| 2025-03-31 | $391k | 13k | 30.17 |
| 2024-12-31 | $471k | 14k | 34.96 |
| 2024-09-30 | $539k | 14k | 40.06 |
| 2024-06-30 | $634k | 14k | 47.11 |
| 2024-03-31 | $601k | 14k | 43.35 |
| 2023-12-31 | $702k | 14k | 50.59 |
| 2023-09-30 | $611k | 14k | 45.36 |
| 2023-06-30 | $552k | 14k | 41.03 |
| 2023-03-31 | $481k | 14k | 35.74 |
| 2022-12-31 | $509k | 14k | 37.77 |