Company: IONQ
Filing Date: 2025-10-10
Form Type: 424B5
Source: 0001193125-25-236448
Chunk: 15

Company: IonQ, Inc.
Filing Date: 2025-10-10
Form: 424B5
Chunk 15
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 warrant. We and any of our agents may treat DTC as the sole holder and registered owner of the global securities.

Exercisability and duration

Each of the Warrants is
exercisable immediately on or after the issuance date and at any time prior to 5:00 p.m., New York City time, on October 14, 2032 (seven years after its original issuance date) (the “Expiration Date”). Each Warrant not exercised on
or before the Expiration Date shall become void, and all rights thereunder and all rights in respect thereof under the applicable Warrant Agreement shall cease at 5:00 p.m., New York City time, on the Expiration Date.

Each Warrant will be exercisable, at the option of the holder, by delivery of a written notice of the holder’s election to exercise the Warrant (or, in
the case of Warrants represented by a global Book-Entry Warrant Certificate, properly delivered by the Participant in accordance with DTC’s procedures).

Within one trading day following an exercise of the Warrant, the holder shall deliver payment of an amount equal to the exercise price in effect on the date
of such exercise multiplied by the number of warrant shares as to which the Warrant was so exercised in cash or via wire transfer of immediately available funds. Notwithstanding the foregoing sentence, the exercise price will be payable in cash only
if an effective registration statement is available for the issuance of the warrant shares (or on a net basis otherwise in accordance with provisions of the Warrant Agreement applicable thereto). We may also elect, during certain periods, to require
cashless exercise.

Fractional shares

No fractional
shares of common stock are to be issued upon the exercise of a Warrant. In lieu of a fractional share, we will, upon exercise, round down to the nearest whole number the number of shares of common stock to be issued upon such exercise.

Exercise price

In the case of the Series B Warrants,
each of the Series B Warrants issued in this offering entitle the holder to purchase one share of our common stock at a price equal to $155.00 per share. In the case of the Pre-funded

S-13

Warrants, each of the Pre-Funded Warrants issued in this offering entitle the registered holder to purchase one share of our common stock at a price equal to $0.0001 per share. The exercise price
and number of shares of common stock issuable upon exercise of the W