D-Wave Quantum (QBTS)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-21 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: D-Wave Quantum Inc. (QBTS) CIK: 0001907982 --- Reporting Owner --- Name: Nguyen Diane CIK: 0001974777 Role: Officer (EVP, Chief Legal Officer & GC) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock, par value $0.0001 per share ("Common Stock") Date: 2026-05-21 | Code: S (Open market sale) Shares: -40,000 | Price: $25.01 Total Value: $1,000,560.00 Shares Owned After: 517,149 | Ownership: D (Direct) Footnotes: [F1] The reported sale of 40,000 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 14, 2025. [F2] The sales price reported is the weighted average sale price for the number of shares of Common Stock sold. These shares were sold in multiple transactions at prices ranging from $25.00 to $25.04, inclusive. Full information regarding the number of shares sold at each separate price will be supplied upon request by Securities and Exchange Commission Staff, the Issuer or a security holder of the Issuer. [F3] Includes 206,796 shares of unvested restricted stock units. --- Footnotes (Complete Index) --- F1: The reported sale of 40,000 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 14, 2025. F2: The sales price reported is the weighted average sale price for the number of shares of Common Stock sold. These shares were sold in multiple transactions at prices ranging from $25.00 to $25.04, inclusive. Full information regarding the number of shares sold at each separate price will be supplied upon request by Securities and Exchange Commission Staff, the Issuer or a security holder of the Issuer. F3: Includes 206,796 shares of unvested restricted stock units. --- Signature --- /s/ /s/ Diane Nguyen (2026-05-22)