D-Wave Quantum (QBTS)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-09-15 10b5-1 Pre-arranged Plan: No --- 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: 2026-09-15 | Code: F (Payment of exercise/tax) Shares: -3,191 | Price: $16.83 Total Value: $53,704.53 Shares Owned After: 503,302 | Ownership: D (Direct) Footnotes: [F1] Represents shares of Common Stock withheld by the Issuer to satisfy tax withholding requirements in connection with the vesting of restricted stock units ("RSUs"). [F2] Includes 169,962 unvested RSUs and (ii) and 643 shares of Common Stock acquired under the Employee Stock Purchase Plan ("ESPP") of the Issuer for the purchase period of December 1, 2025 to May 29, 2026. In accordance with the ESPP, such 643 shares of Common Stock were purchased at a price equal to 85% of the closing price of the Issuer's Common Stock on December 1, 2025. --- Footnotes (Complete Index) --- F1: Represents shares of Common Stock withheld by the Issuer to satisfy tax withholding requirements in connection with the vesting of restricted stock units ("RSUs"). F2: Includes 169,962 unvested RSUs and (ii) and 643 shares of Common Stock acquired under the Employee Stock Purchase Plan ("ESPP") of the Issuer for the purchase period of December 1, 2025 to May 29, 2026. In accordance with the ESPP, such 643 shares of Common Stock were purchased at a price equal to 85% of the closing price of the Issuer's Common Stock on December 1, 2025. --- Signature --- /s/ /s/ Diane Nguyen (2026-09-16)