X0306 4 2020-11-15 0001484612 Outset Medical, Inc. OM 0001478582 Williamson Steven S. 3052 ORCHARD DRIVE SAN JOSE CA 95134 true Chief Commercial Officer Common Stock 2020-11-15 4 A 0 30000 0 A 30910 D Stock Option (Right to Buy) 52.55 2020-11-15 4 A 0 60000 0 A 2030-11-14 Common Stock 60000 60000 D Represents restricted stock units ("RSU") granted to the reporting person on November 5, 2020. Each RSU represents a contingent right to receive one share of common stock. One-third of these RSUs shall vest on each of the first, second and third anniversaries of the grant date, subject to the reporting person's continuous service through the applicable vesting date. 25% of the total number of shares subject to the option shall vest on the first anniversary of the grant date, and thereafter 1/48 of such total number of shares shall vest on each monthly anniversary of the grant date, subject to the reporting person's continuous service through the applicable vesting date. /s/ John Brottem, attorney-in-fact for Steven S. Williamson 2020-11-17