Company: ANY
Filing Date: 2025-11-18
Form Type: PRE 14A
Source: 0001591956-25-000018
Chunk: 1

Company: Sphere 3D Corp.
Filing Date: 2025-11-18
Form: PRE 14A
Chunk 1
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 you may vote electronically via the Internet by following the instructions included in the Notice of Internet Availability of Proxy Materials. If your shares are registered in the name of a broker or other nominee, your nominee may be participating in a program that allows you to vote by telephone or via the Internet. If so, the voting instruction form that your nominee sends you will provide voting instructions.

Thank you for your ongoing support of Sphere 3D Corp.

Sincerely,

KURT L. KALBFLEISCH

Chief Executive Officer

### TABLE OF CONTENTS
|                                                                |     | Page |
| Notice of Special Meeting of Shareholders                      |     |    1 |
| General Information                                            |     |    3 |
| Proposal No. 1 – Warrant Inducement Transaction                |     |    9 |
| Proposal No. 2 – Name Change                                   |     |   12 |
| Proposal No. 3 – Meeting Adjournment                           |     |   14 |
| Security Ownership of Certain Beneficial Owners and Management |     |   15 |
| Interest of Certain Persons in Matters to be Acted Upon        |     |   15 |
| Other Matters to be Acted Upon                                 |     |   15 |
| Additional Information                                         |     |   16 |

#### SPHERE 3D CORP.

### NOTICE OF SPECIAL MEETING OF SHAREHOLDERS

#### TO BE HELD ON THURSDAY, JANUARY 15, 2026
The special meeting of shareholders of Sphere 3D Corp. will be held by virtual electronic means only, on Thursday, January 15, 2026 at 11:30 a.m. Eastern Time (the “

#### Meeting
”).

The Meeting will be a virtual meeting via a live webcast on the Internet. You will be able to attend the Meeting, vote and submit questions during the Meeting by (i) visiting

#### https://virtual-meetings.tsxtrust.com/en/1862
; (ii) entering the password: sphere2026 (case sensitive); and (iii) entering the control number included in the Notice of Internet Availability of Proxy Material or proxy card that you receive.

The purpose of the Meeting is to consider and vote upon the following matters:

1. To approve the warrant inducement transaction (the “

#### Warrant Inducement Proposal
”);

2. To approve a potential name change of the Company (the “

#### Name Change Proposal
”