X0609 4 2026-05-22 0 0001907982 D-Wave Quantum Inc. QBTS 0001453942 Markovich John M. false 2650 EAST BAYSHORE ROAD PALO ALTO CA 94303 0 1 0 0 Chief Financial Officer 0 Common Stock, par value $0.0001 per share ("Common Stock") 2026-05-22 4 M 0 207926 0.92 A 1650746 D Common Stock, par value $0.0001 per share ("Common Stock") 2026-05-22 4 M 0 120826 0.846 A 1771572 D Common Stock, par value $0.0001 per share ("Common Stock") 2026-05-22 4 S 0 328752 27.7037 D 1442820 D Stock Option (right to buy) 0.92 2026-05-22 4 M 0 207926 0.92 D 2031-08-20 Common Stock, par value $0.0001 per share ("Common Stock") 207926 0 D Stock Option (right to buy) 0.846 2026-05-22 4 M 0 120826 0.846 D 2034-01-10 Common Stock, par value $0.0001 per share ("Common Stock") 120826 0 D Includes 447,770 shares of unvested restricted stock units. 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 $27.00 to $28.61, 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. Prior to the reported option exercise transaction, this option had fully vested and was exercisable as to 207,926 shares of Common Stock. Prior to the reported option exercise transaction, this option had fully vested and was exercisable as to 120,826 shares of Common Stock. /s/ John M. Markovich 2026-05-27