D-Wave Quantum Inc. filed a Current Report on Form 8-K with the Securities and Exchange Commission on September 10, 2026. The filing confirms that the company has filed a prospectus supplement to a registration statement originally submitted on January 20, 2026.

The prospectus supplement covers the resale of an aggregate of 7,095,721 shares of the company’s common stock. These shares are being offered by the United States Department of Commerce.

The filing includes a legal opinion from the law firm Paul, Weiss, Rifkind, Wharton & Garrison LLP regarding the shares covered by the prospectus supplement. This opinion is filed as Exhibit 5.1 to the report and is incorporated by reference into the original registration statement.

The registration statement referenced in the filing is Form S-3ASR, with Commission File No. 333-292825.