X0508 4 2024-06-07 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 SVP and CFO 0 Common Stock 2024-06-07 4 M 0 136250 A 204189 D Common Stock 2024-06-11 4 S 0 80000 1.165 D 124189 D Common Stock 2142 I By Daughter Common Stock 2142 I By Son Restricted Stock Unit (RSU) 2024-06-07 4 M 0 136250 D Common Stock 136250 116964 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 June 7, 2024. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices within the range of $1.15 to $1.20, inclusive. The RSUs reported under Column 9 represent two awards. The underlying shares and vesting schedules are as follows: (i) 11,607 shares vest annually on 6/20/24 and 6/20/25 and (ii) 11,719 vest quarterly beginning 6/30/24 until 12/31/25 and 11,717 vest on 3/31/26. /s/ Denise Garrett, as Attorney-in-Fact for Kurt Kalbfleisch 2024-06-11