Mark T. Iwicki Granted Stock Options in Q32 Bio Inc.

Mark T. Iwicki, a director of Q32 Bio Inc., was granted 53,521 stock options on October 23, 2025. The options, which are exercisable at $2.80 per share, will vest in full on the earlier of October 23, 2026, or the date of the company's next annual meeting of stockholders, contingent on Iwicki's continued service on the vesting date. The options expire on October 22, 2035. This transaction was reported in a Form 4 filing with the SEC.