Hongbo Lu plan to sell securities of Arrowhead Pharmaceuticals Inc. under Form 144

Hongbo Lu filed Form 144 to notify SEC of plan to sell 2970 units of Arrowhead Pharmaceuticals Inc. securities around 2026-05-12, with aggregate market value of $228,298.95. The total outstanding units is 140857021.0. The amount planned to be sold represents 0.00% of total outstanding units;