Kordasiewicz Holly B. plan to sell securities of IONIS PHARMACEUTICALS INC under Form 144

Kordasiewicz Holly B. filed Form 144 to notify SEC of plan to sell 1287 units of IONIS PHARMACEUTICALS INC securities around 2026-07-07, with aggregate market value of $108,494.00. The total outstanding units is 165262556.0. The amount planned to be sold represents 0.00% of total outstanding units; Recent transactions in past 3 months include: On 06/12/2026, sold 60846 units for $4466425.00;