144 0002013580 XXXXXXXX LIVE 0001824920 IonQ, Inc. 001-39694 4505 Campus Drive College Park MD 20740 301-298-7997 Cardillo Robert T. Executive Chair, IonQ Federal Common Stock E-Trade Financial Corporation

PO Box 484 Jersey City NJ 07303-0484

6710 253504 381002314 09/11/2026 NYSE Common Stock 09/10/2026 Vesting of Restricted Stock Units Issuer N 6710 09/10/2026 Equity Compensation N Robert T. Cardillo

4505 Campus Drive College Park MD 20740

Common Stock 06/11/2026 904 50809.50 Robert T. Cardillo

4505 Campus Drive College Park MD 20740

Common Stock 06/16/2026 2547 152189.39 Shares sold to cover tax withholding obligations in connection with the vesting of restricted stock units. 09/10/2026 /s/Tyler T. Rosenbaum, Assistant Secretary, by Power of Attorney