Company: ANY
Filing Date: 2025-12-10
Form Type: 424B3
Source: 0001062993-25-017271
Chunk: 1

Company: Sphere 3D Corp.
Filing Date: 2025-12-10
Form: 424B3
Chunk 1
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 or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

<div align='center'>The date of this prospectus is December 10, 2025

TABLE OF CONTENTS</div>

| ABOUT THIS PROSPECTUS                             |  1 |
| WHERE YOU CAN FIND MORE INFORMATION ABOUT US      |  3 |
| INCORPORATION OF DOCUMENTS BY REFERENCE           |  3 |
| SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS |  5 |
| OUR COMPANY                                       |  6 |
| RISK FACTORS                                      | 11 |
| USE OF PROCEEDS                                   | 14 |
| ENFORCEABILITY OF CIVIL LIABILITIES               | 15 |
| DESCRIPTION OF SHARE CAPITAL                      | 16 |
| PRIVATE PLACEMENT                                 | 32 |
| SELLING STOCKHOLDER                               | 34 |
| PLAN OF DISTRIBUTION                              | 36 |
| LEGAL MATTERS                                     | 38 |
| EXPERTS                                           | 38 |

<div align='center'>ABOUT THIS PROSPECTUS</div>

You should read this prospectus and any prospectus supplement together with the additional information described under the heading "Where You Can Find More Information About Us" and "Incorporation of Documents by Reference."

In this prospectus, unless otherwise indicated or unless the context otherwise requires:

●"shares" or "common shares" refer to our common shares, no par value per share;

●"$" and "dollars" refer to the legal currency of the United States; and

●"we," "us," "our company," "our group" and "our" refer to Sphere 3D Corp. and its subsidiaries.

This prospectus is part of a registration statement on Form S-3 that we filed with the U.S. Securities and Exchange Commission (the "SEC"). You should read this prospectus and the information and documents incorporated herein by reference carefully. Such documents contain important information you should consider when making your investment decision. See "Where You Can Find Additional Information" and "Incorporation of Certain Documents by Reference" in this prospectus.

You should rely only on the information contained or incorporated by reference in this prospectus and in any prospectus supplement. Neither we nor the Selling Stockholder have authorized any other person to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. We will not