ARROWHEAD PHARMACEUTICALS, INC. — Director's Dealing 2026

Jan 8, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ARROWHEAD PHARMACEUTICALS, INC. (ARWR)
CIK: 0000879407
Period of Report: 2026-01-06

Reporting Person: O'Brien Patrick (COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-01-06	Common Stock	G	540	—	Disposed	474368	Direct
2026-01-06	Common Stock	G	540	—	Disposed	473828	Direct
2026-01-06	Common Stock	G	540	—	Disposed	473288	Direct
2026-01-06	Common Stock	G	440	—	Disposed	472848	Direct
2026-01-06	Common Stock	G	440	—	Disposed	472408	Direct
2026-01-06	Common Stock	A	75000	—	Acquired	547408	Direct

Footnotes

F1: Gift to relatives

F2: Includes previously reported shares of common stock underlying Restricted Stock Units granted to the Reporting person, a portion of which are still subject to certain vesting conditions.

F3: Represents shares underlying restricted stock units which will vest in four equal annual installments.