X0508 4 2026-03-11 0001591956 Sphere 3D Corp. ANY 0002102312 Reppas Tiah Norton FIRST EXECUTIVE SUITES, 100 E SAN MARCOS SUITE 400 SAN MARCOS CA 92069 0 1 0 0 Chief Accounting Officer 0 Common Stock 2026-03-11 4 M 0 16250 A 18634 D Common Stock 2026-03-12 4 S 0 6250 1.61 D 12384 D Restricted Stock Unit (RSU) 2026-03-11 4 M 0 16250 D 2026-03-01 2026-03-01 Common Stock 16250 90000 D Each RSU represents a contingent right to receive one share of Sphere 3D Corp. common stock. This transaction represents the sale of shares by the reporting person to satisfy the issuer's tax withholding obligations in connection with the release of vested RSUs on March 11, 2026. The common share balance has been adjusted to reflect the issuer's 1 for 10 reverse stock split effective February 9, 2026. The RSUs reported under Column 9 include three awards. The underlying outstanding shares and vesting schedules are as follows: (i) 5,000 shares outstanding of which 1,250 shares vest quarterly from June 1, 2026 until March 1, 2027; (ii) 35,000 outstanding shares of which 5,000 shares vest quarterly from June 1, 2026 until December 1, 2027; and (iii) 50,000 outstanding shares which vest in full on March 4, 2027. By: Denise Garrett For: Tiah Reppas 2026-03-13