Company: IONQ
Filing Date: 2025-07-07
Form Type: 424B5
Source: 0001193125-25-155889
Chunk: 10

Company: IonQ, Inc.
Filing Date: 2025-07-07
Form: 424B5
Chunk 10
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 and retain qualified employees and management; |

| • |     | our ability to adapt to changes in customer preferences, perception and spending habits and develop and expand 
 our product offerings and gain market acceptance of our products, including in new geographies;                |

| • |     | our ability to develop and maintain our brand and reputation; |

| • |     | developments and projections relating to our competitors and industry; |

| • |     | our expectations regarding our ability to obtain and maintain intellectual property protection and not infringe 
 on the rights of others;                                                                                        |

| • |     | the impact of global economic and political developments on our business, as well as the value of our common 
 stock and our ability to access capital markets;                                                             |

| • |     | the impact of public health crises, or geopolitical tensions, in and around Ukraine, Israel and other areas of 
 the world, on our business and the actions we may take in response thereto;                                    |

| • |     | our future capital requirements and sources and uses of cash; |

| • |     | our ability to obtain funding for our operations and future growth; |

| • |     | our business, expansion plans and opportunities; |

| • |     | the effect that future sales of our common stock, including by our directors and officers, would have on the 
 market price;                                                                                                |

| • |     | our expectations related to the use of proceeds from this offering; and |

S-7

| • |     | other factors detailed in the section entitled “Risk Factors” beginning on page S-5 of this prospectus supplement, and those risks disclosed in the section entitled “Risk Factors” in our most recent Annual Report on Form 10-K and our subsequent 
 Quarterly Reports on Form 10-Q filed with the SEC.                                                                                                                                                                                                   |

We caution you that the foregoing list does not contain all of the forward-looking statements made in this prospectus supplement, the accompanying prospectus, and the documents incorporated by reference herein and therein. Because forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified, you should not rely upon forward-looking statements as predictions of future events. The events and circumstances reflected in the forward-looking statements may not be achieved or occur and actual results could differ materially from those projected in the forward-looking statements. Except as required by applicable law, including the securities laws of the United States and the rules and regulations of the SEC, we do not plan to publicly update or revise any forward-looking