Schedule 13G ownership disclosure
IONIS PHARMACEUTICALS INC
Common Stock · CUSIP: 462222100
Event date: 2025-12-31
- Filing-level shares
- 17,961,299.00
- Percent of class
- 11.1%
- Capital World Investors
Shares: 17,961,299.00 · Class: 11.1%
Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.
Source: SEC EDGAR filingFiling metadata
- Accession number
- 0001422849-26-000001
- Form type
- SCHEDULE 13G/A
- Filer
- Capital World Investors
- CIK
- CIK 1422849
- Filed
- Jan 07, 2026
- Reporting period
- Dec 31, 2025
- Description
- Schedule 13G beneficial ownership