COOPER GRAHAM K Stock Option Grant

On June 3, 2026, COOPER GRAHAM K was granted 19,676 stock options for Beam Therapeutics Inc. Common Stock at an exercise price of $29.55 per share. The options vest in full on the earlier of the first anniversary of the grant date or immediately prior to the next year's annual meeting of stockholders, contingent upon continued service to the board. The options have an expiration date of June 3, 2036. This transaction is reported on Form 4.