Disc Medicine Director Liam Ratcliffe Granted 6,212 Stock Options at $70.79 Exercise Price

This Form 4 filing reports that Liam Ratcliffe, a director of Disc Medicine, Inc. (ticker: IRON), was granted 6,212 stock options on June 18, 2026. The options have an exercise price of $70.79 per share and expire on June 17, 2036. The options vest upon the earlier of either the date of the company's 2027 annual stockholders meeting or the one-year anniversary of the grant date, subject to Ratcliffe's continued service on the vesting date. As a director, Ratcliffe received these options as part of his compensation package. The transaction was reported on June 23, 2026, and the filing indicates these are newly acquired derivative securities (transaction code A) that give Ratcliffe the right to buy common stock at the specified price.