Company: IONQ
Filing Date: 2025-02-27
Form Type: 424B5
Source: 0001193125-25-037295
Chunk: 6

Company: IonQ, Inc.
Filing Date: 2025-02-27
Form: 424B5
Chunk 6
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Use of Proceeds” for more information. |

| Risk factors | Investing in our common stock involves significant risks. Before making an investment decision, please read the information contained in and incorporated by reference under the heading “Risk Factors” on page S-4 of this prospectus supplement, and under similar headings in other documents that are incorporated by reference into this prospectus supplement and the accompanying prospectus. |

| NYSE symbol | “IONQ” |

S-3

RISK FACTORS

Investing in our securities involves a high degree of risk. Before making a decision to invest in our securities, in addition to carefully considering the other information contained in this prospectus supplement, in the accompanying prospectus and in the documents incorporated by reference herein or therein, you should carefully consider the risks described below, as well as the risks discussed under the caption “Risk Factors” contained in our most recent Annual Report on Form 10-Kand any subsequent Quarterly Reports on Form 10-Q,each as amended or updated by our subsequent filings with the SEC, which are incorporated by reference into this prospectus supplement in their entirety. The risks described in these documents are not the only ones we face. There may be other unknown or unpredictable economic, business, competitive, regulatory or other factors that could harm our future results. Past financial performance may not be a reliable indicator of future performance, and historical trends should not be used to anticipate results or trends in future periods. If any of these risks actually occurs, our business, financial condition, results of operations or prospects could be harmed. This could cause the trading price of our common stock to decline, resulting in a loss of all or part of your investment. Please also read carefully the section below titled “Forward-Looking Statements.”

Additional risks related to the offering

We will have broad discretion in the use of the net proceeds from this offering and may not use them effectively.

We cannot specify with certainty the particular uses of the net proceeds we will receive from this offering. Our management will have broad discretion in the
application of the net proceeds. We currently intend to use the net proceeds from this offering, if any, for working capital and other general corporate purposes. Our management may spend a portion or all of the net proceeds from this offering in
ways that our stockholders may not desire or that may not yield a favorable return. The failure by our management to apply these funds effectively could harm our business, financial condition, results of operations and prospects. Pending their use,
we may invest the net proceeds from this