BlackRock, Inc. 13D and 13G filings for Ionis Pharmaceuticals, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2025-04-17 09:35 am Purchase | 2025-03-31 | 13G | Ionis Pharmaceuticals, Inc. IONS | BlackRock Inc. BLK | 9,066,517 5.700% | 9,235 (+0.10%) | Filing |
| 2024-01-26 4:25 pm Sale | 2023-12-31 | 13G | Ionis Pharmaceuticals, Inc. IONS | BlackRock Inc. BLK | 9,057,282 6.300% | -125,629 (-1.37%) | Filing |
| 2023-01-31 5:52 pm Purchase | 2022-12-31 | 13G | Ionis Pharmaceuticals, Inc. IONS | BlackRock Inc. BLK | 9,182,911 6.500% | 643,629 (+7.54%) | Filing |
| 2022-02-01 5:08 pm Sale | 2021-12-31 | 13G | Ionis Pharmaceuticals, Inc. IONS | BlackRock Inc. BLK | 8,539,282 6.000% | -1,211,220 (-12.42%) | Filing |
| 2021-02-05 07:51 am Purchase | 2020-12-31 | 13G | Ionis Pharmaceuticals, Inc. IONS | BlackRock Inc. BLK | 9,750,502 7.000% | 1,348,113 (+16.04%) | Filing |