X0508 4 2024-03-27 0001591956 Sphere 3D Corp. ANY 0001409130 Kalbfleisch Kurt L. C/O SPHERE 3D CORP. 243 TRESSER BLVD., 17TH FLOOR STAMFORD CT 06901 0 1 0 0 CFO 0 Restricted Stock Unit (RSU) 2024-03-27 4 A 0 125000 A Common Stock 125000 148214 D Each RSU represents a contingent right to receive one share of Sphere 3D Corp. common stock. The RSUs vest 25% on the date of grant and the remaining RSUs vest in equal quarterly installments beginning June 30, 2024 and ending March 31, 2026. Mr. Kalbfleisch has deferred the vesting of the first tranche of RSUs. /s/ Denise Garrett, as Attorney-in-Fact for Kurt Kalbfleisch 2024-03-28