DEERFIELD MANAGEMENT COMPANY, L.P.'s ownership history for IONS

DEERFIELD MANAGEMENT COMPANY, L.P. currently holds 2.0M shares with a market value of $148.7M. It started holding IONS on 2025-09-30. At its peak, it held 2.0M shares on 2025-09-30. Its highest holding value was $156.6M on 2025-12-31. At its lowest, it held 2.0M shares on 2025-09-30, with a value of $129.5M on 2025-09-30. In the recent 180 days, DEERFIELD MANAGEMENT COMPANY, L.P. has increased its shares by 0.