AMES SOPHIE C 4

What Happened Sophie C. Ames, Executive Vice President & CHRO of D-Wave Quantum, had 1,544 shares of common stock withheld by the company to satisfy tax withholding associated with the vesting of restricted stock units (RSUs). The shares were recorded as disposed on 2026-06-15 at an effective price of $23.37 per share, for a total value of approximately $36,083. This was a routine tax-withholding disposition (not an open-market sale or purchase).

Key Details

• Transaction date: 2026-06-15; filing date (Form 4): 2026-06-16 (filed promptly).
• Shares withheld/disposed: 1,544 at $23.37 per share; total value ≈ $36,083.
• Transaction code: F (shares withheld to satisfy tax withholding on RSU vesting).
• Footnote F1: Issuer withheld shares to satisfy tax withholding on vesting.
• Footnote F2: Reporting includes 589,269 unvested RSUs held by the insider.
• Shares owned after the transaction: not detailed in this Form 4 aside from the unvested RSU balance noted above.

Context This was a cashless “sell-to-cover” style withholding to meet tax obligations when RSUs vested, a common administrative action that does not by itself signal a change in insider sentiment. Because the shares were withheld by the company (not sold on the open market), the transaction is generally viewed as routine.