144 0001885490 XXXXXXXX LIVE 0001824920 IonQ, Inc. 001-39694 4505 CAMPUS DRIVE COLLEGE PARK MD 20740 (301) 298-7997 Chapman Peter Hume Officer Director Common Stock E-TRADE Financial Corporation

PO Box 484 Jersey City NJ 07303-0484

42830 466847.00 208229519 03/11/2024 NYSE Common Stock 03/08/2024 Vesting of Restricted Stock Units - See Remarks Issuer N 42380 03/08/2024 Equity compensation N Peter Hume Chapman

c/o IonQ, Inc. 4505 Campus Drive College Park MD 20740

Common Stock 12/11/2023 56152 741925.15 Shares sold to cover tax withholding obligations in connection with the vesting of restricted stock units. 03/08/2024 /s/ Peter Hume Chapman