IonQ, Inc.

Securities Trading Plans of Directors and Executive Officers

On August 13, 2026, Gabrielle B. Toledano, one of ourdirectors, adopted a Rule 10b5-1 trading arrangement for the sale of 1,728 shares of our common stock. The arrangement’s expiration date is November 26, 2027. Sales under the trading arrangement will not commence until after completion of the required cooling off period under Rule 10b5-1.

On August 31, 2026, Kathryn K. Chou, our Lead Independent Director, adopted a Rule 10b5-1 trading arrangement for the potential sale of up to 22,263 shares of our common stock, subject to certain conditions. The arrangement’s expiration date is November 26, 2027. Sales under the trading arrangement will not commence until after completion of the required cooling off period under Rule 10b5-1.

On September 1, 2026, Inder M. Singh, our Chief Financial Officer and Chief Operating Officer, adopted a Rule 10b5-1 trading arrangement for the potential sale of up to 355,094 shares of our common stock, subject to certain conditions. This number represents the gross number of shares underlying RSUs expected to vest during the arrangement term. Under the terms of the trading arrangement, the broker will sell 100% of the net shares delivered to Mr. Singh following the satisfaction of statutory tax withholding obligations. Because the number of shares sold to satisfy tax obligations depends on the fair market value of the shares and applicable tax withholding rates on the respective vesting dates, the exact number of net shares that will ultimately be sold cannot be determined as of the date of this report. The arrangement’s expiration date is December 31, 2027. Sales under the trading arrangement will not commence until completion of the required cooling off period under Rule 10b5-1.