Company: IONQ
Filing Date: 2025-06-09
Form Type: 424B7
Source: 0001193125-25-137419
Chunk: 46

Company: IonQ, Inc.
Filing Date: 2025-06-09
Form: 424B7
Chunk 46
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), 13(c), 14 or 15(d) of the Exchange Act (in each case, other than those documents or the portions of those documents furnished pursuant to Items 2.02 or 7.01 of any Current Report on Form 8-Kand, except as may be noted in any such Form 8-K,exhibits filed on such form that are related to such information) after the date of the initial registration statement of which this prospectus forms a part and prior to the effectiveness of the registration statement, as well as subsequent to the effectiveness of the registration statement, until the offering of the securities under the registration statement of which this prospectus forms a part is terminated or completed:

You may request a copy of these filings, at no cost, by writing or telephoning us at the following address and telephone number: IonQ, Inc. 4505 Campus Drive College Park, MD 20740 Attn: Investor Relations (301) 298-7997 29

Up to 903,195 Shares

Common Stock

PROSPECTUS SUPPLEMENT

June 9, 2025