Company: IONQ
Filing Date: 2025-07-07
Form Type: 424B5
Source: 0001193125-25-155901
Chunk: 32

Company: IonQ, Inc.
Filing Date: 2025-07-07
Form: 424B5
Chunk 32
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 public” in relation to securities in any Relevant State means the communication in any form and by any means of sufficient information on the terms of the offer and any securities to be offered so as to enable an investor to decide to purchase or subscribe for any securities and the accompanying warrants, and the expression “Prospectus Regulation” means Regulation (EU) 2017/1129. Notice to prospective investors in Canada The securities may be sold only to purchasers purchasing, or deemed to be purchasing, as principal that are accredited investors, as defined in National Instrument 45-106Prospectus Exemptions or subsection 73.3(1) of the Securities Act (Ontario), and are permitted clients, as defined in National Instrument 31-103Registration Requirements, Exemptions and Ongoing Registrant Obligations. Any resale of the securities must be made in accordance with an exemption from, or in a transaction not subject to, the prospectus requirements of applicable securities laws. Securities legislation in certain provinces or territories of Canada may provide a purchaser with remedies for rescission or damages if this prospectus (including any amendment thereto) contains a misrepresentation, provided that the remedies for rescission or damages are exercised by the purchaser within the time limit prescribed by the securities legislation of the purchaser’s province or territory. The purchaser should refer to any applicable provisions of the securities legislation of the purchaser’s province or territory for particulars of these rights or consult with a legal advisor. Pursuant to section 3A.3 of National Instrument 33-105Underwriting Conflicts (NI 33-105),the underwriter is not required to comply with the disclosure requirements of NI 33-105regarding underwriter conflicts of interest in connection with this offering. Notice to prospective investors in the United Kingdom No securities have been offered or will be offered pursuant to the offering to the public in the United Kingdom prior to the publication of a prospectus in relation to the securities which is to be treated as if it had been approved by the Financial Conduct Authority in accordance with the transitional provisions in Article 74 S-23

(transitional provisions) of the Prospectus Amendment etc (EU Exit) Regulations 2019/1234, except that the securities may be offered to the public in the United Kingdom at any time:

| • |     | to any legal entity which is a qualified investor as defined under Article 2 of the UK Prospectus Regulation; |

| • |     | to fewer than 150 natural or legal persons (other than qualified investors