Yu Jonathan Yen-Wen 4

What Happened

• Jonathan Yen-Wen, Chief Operating Officer of Disc Medicine (IRON), exercised 9,700 stock options and sold the resulting 9,700 shares on June 22, 2026. He paid $13.50 per share to exercise (total cost $130,950) and sold the shares at a weighted average price of $72.66 for proceeds of about $704,795. The option position was then surrendered/removed (reported as a derivative disposal at $0).

Key Details

• Date: June 22, 2026.
• Option exercise: 9,700 shares exercised at $13.50 per share; total exercise cost $130,950.
• Sale: 9,700 shares sold at a weighted average price of $72.66; total proceeds ≈ $704,795. Reported sale prices ranged from $72.50 to $72.68. (Reporting person can provide per-trade prices on request — see footnote.)
• Derivative disposition: the underlying option position was reported disposed at $0 (reflecting conversion on exercise).
• Shares owned after the transaction: not specified in the provided excerpt of the filing.
• Notable footnotes: transactions were executed under a Rule 10b5-1 trading plan adopted March 17, 2026 (F1). The sale price is a weighted average for multiple trades (F2). The option vesting schedule: the option originally vests in 48 equal monthly installments beginning December 29, 2022, subject to continued service (F3).

Context

• This was an exercise-plus-sale (effectively a cashless-type transaction): the insider exercised vested options and sold the acquired shares the same day. Such transactions are commonly executed under pre-established 10b5-1 plans and are generally considered routine rather than an ad hoc signal of sentiment.
• The filing shows both the exercise (derivative action) and the open-market sale; the derivative disposal at $0 reflects the option being converted into shares on exercise.