X0306 4 2020-03-19 0 0001566044 Menlo Therapeutics Inc. MNLO 0001417397 Basta Steven L 200 CARDINAL WAY, 2ND FLOOR REDWOOD CITY CA 94063 1 0 0 0 Stock Option 2.67 2020-03-19 4 A 0 45000 0.00 A 2030-03-19 Common Stock 45000 45000 D The option will vest and become exercisable as to 1/3rd of the shares subject to the option on each annual anniversary of the date of grant, subject to the Reporting Person's continued service to the Issuer through each applicable vesting date. /s/ Mutya Harsch as attorney-in-fact for Steven Basta 2020-03-23