X0609 4 2026-06-08 0001591956 Sphere 3D Corp. ANY 0001409130 Kalbfleisch Kurt L. false C/O SPHERE 3D CORP. 243 TRESSER BLVD., 17TH FLOOR STAMFORD CT 06901 1 1 0 0 Chief Financial Officer 0 Common Shares 2026-06-08 4 A 0 250000 0 A 425815 D Common Shares 215 I By Daughter Common Shares 215 I By Son Represents a grant of 250,000 restricted stock units ("RSUs"), each representing a contingent right to receive one common share of the Issuer. The RSUs were granted on June 8, 2026 pursuant to the Issuer's equity plan. The RSUs will vest in four equal installments on December 1, 2026, June 1, 2027, December 1, 2027 and June 1, 2028, subject to full acceleration upon the occurrence of a Vesting Event. A "Vesting Event" means: (i) a Change in Control Vesting Event (as defined in the reporting person's RSU Award Agreement) or (ii) a dissolution, liquidation or wind-up of the Issuer. /s/ Kurt L. Kalbfleisch 2026-06-10