Arrowhead (ARWR) CMO James C. Hamilton Sells 10,000 Shares

What Happened James C. Hamilton, Chief Medical Officer of Arrowhead Pharmaceuticals (ARWR), sold 10,000 shares on 2026-03-05 in an open-market/private sale. The weighted-average sale price was $64.19 per share, for proceeds of approximately $641,900. This was a sale (not a purchase or exercise).

Key Details

• Transaction date: 2026-03-05; Form 4 filed: 2026-03-09 (filed within the required two business days).
• Price: weighted average $64.19; individual trades ranged from $63.80 to $64.51 (report notes full per-price breakdown available on request).
• Shares disposed: 10,000 (transaction code S = sale).
• Shares owned after transaction: not specified in the provided filing.
• Footnotes: (F1) Shares were sold pursuant to a pre-established Rule 10b5-1 trading plan; (F2) weighted-average price reported and per-share price range disclosed; (F3) ownership reported may include previously disclosed RSU awards, some of which remain subject to vesting.

Context Sales executed under a 10b5-1 plan are pre-planned trades and are often routine; they do not necessarily indicate a change in the insider’s view of the company. For retail investors, open-market purchases typically carry more direct informational weight than routine sales.