AMES SOPHIE C 4

What Happened

• Sophie C. Ames, Executive Vice President & CHRO of D-Wave Quantum Inc. (QBTS), had 3,180 shares of common stock withheld by the company to satisfy tax withholding obligations related to the vesting of restricted stock units. The withholding price was $14.25 per share, totaling $45,315. This was a withholding/disposition to cover taxes, not an open-market sale.

Key Details

• Transaction date: 2026-04-13; Filing date (Form 4): 2026-04-15 (appears timely).
• Withheld/disposed: 3,180 shares at $14.25 per share = $45,315.
• Footnote F1: Shares were withheld by the issuer to satisfy tax withholding on RSU vesting (tax-withholding/cashless withholding).
• Footnote F2: Filing notes 639,179 shares are unvested restricted stock units (RSUs) attributable to the insider.
• The filing does not indicate an open-market sale or purchase; this is a routine tax-related withholding and typically not a signal of bullish/bearish intent.

Context

• Withholding shares to cover taxes is common when RSUs vest and should be read as an administrative transaction, not a discretionary sale. The large number of unvested RSUs (639,179) shows substantial future potential equity interest but does not by itself indicate trading intent.