X0306 4 2023-02-28 0001591956 Sphere 3D Corp. ANY 0001888940 Trompeter Patricia C/O SPHERE 3D CORP. 51 WEAVER STREET 4 GREENWICH OFFICE PARK BLDG 4, STE 100 GREENWICH CT 06831 1 1 0 0 CEO Restricted Stock Unit (RSU) 2023-02-28 4 A 0 967750 A Common Stock 967750 1367750 D Each RSU represents a contingent right to receive one share of Sphere 3D Corp. common stock. The RSUs vest as follows: 193,550 shares vest on 5/22/2023 and 774,200 shares vest on 12/1/2023. The RSUs reported under column 9 represent two awards. The underlying shares and vesting schedules are as follows: (i) 193,550 shares vest on 5/22/2023 and 774,200 shares vest on 12/1/2023, and (ii) 150,000 shares vest on 4/8/23; 125,000 shares vest on 4/8/24 and 125,000 shares vest on 4/8/25. /s/ Denise Garrett For: Patricia Trompeter 2023-03-01