Company: IONQ
Filing Date: 2025-08-28
Form Type: 424B7
Source: 0001193125-25-191228
Chunk: 23

Company: IonQ, Inc.
Filing Date: 2025-08-28
Form: 424B7
Chunk 23
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 may from time to time sell any combination of the securities described in this prospectus in one or more offerings.

This prospectus provides you with a general description of the securities that may be offered. Each time we or the selling stockholders sell
securities, we will provide one or more prospectus supplements that will contain specific information about the terms of the offering. The prospectus supplement may also add, update or change information contained in this prospectus. Before you
invest in our securities, you should read both this prospectus and any applicable prospectus supplement together with the additional information described in the sections titled “Where You Can Find More Information” and
“Incorporation by Reference.”

We have not authorized anyone to provide you with information that is different from that
contained, or incorporated by reference, in this prospectus, any applicable prospectus supplement or in any related free writing prospectus. We take no responsibility for, and can provide no assurance as to the reliability of, any other information
that others may give you. This prospectus and any applicable prospectus supplement or any related free writing prospectus do not constitute an offer to sell or the solicitation of an offer to buy any securities other than the securities described in
the applicable prospectus supplement or an offer to sell or the solicitation of an offer to buy such securities in any circumstances in which such offer or solicitation is unlawful. You should assume that the information appearing in this
prospectus, any prospectus supplement, the documents incorporated by reference and any related free writing prospectus is accurate only as of their respective dates. Our business, financial condition, results of operations and prospects may have
changed materially since those dates.

ii

PROSPECTUS SUMMARY

This summary highlights selected information that is presented in greater detail elsewhere, or incorporated by reference, in this prospectus. It does not contain all of the information that may be important to you and your investment decision. Before investing in our securities, you should carefully read this entire prospectus, including the matters set forth in the section titled “Risk Factors” and the financial statements and related notes and other information that we incorporate by reference herein, including our Annual Report on Form 10-Kand our Quarterly Reports on Form 10-Q.Unless the context indicates otherwise, references in this prospectus to “IonQ, Inc.,” “we,” “our” and “us” refer, collectively, to IonQ, Inc., a Delaware corporation, and its subsidiaries taken as a whole.

Company Overview

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