Company: IONQ
Filing Date: 2025-08-28
Form Type: 424B7
Source: 0001193125-25-191228
Chunk: 17

Company: IonQ, Inc.
Filing Date: 2025-08-28
Form: 424B7
Chunk 17
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 II LP. Patrick Christopher Lee, as sole managing partner, has sole voting and dispositive power over 
 the shares. The selling stockholder’s principal address is 1325 Howard Avenue #430, Burlingame, CA 94010.                                                                                                                                                |

| (30) | Consists of (i) 53,387 shares held directly by the selling stockholder and (ii) 2,945 shares to which the                                                                                                                                       
 selling stockholder is entitled but that are subject to escrow arrangements. Diego Piacentini, as president and director of the selling stockholder, has sole voting and dispositive power over the shares. The selling stockholder’s principal 
 address is 1750, 112th Avenue NE, Suite E200, Bellevue, WA 98004.                                                                                                                                                                               |

| (31) | Consists of (i) 55,698 shares held directly by the selling stockholder and (ii) 3,073 shares to which the                                                                                                                                              
 selling stockholder is entitled but that are subject to escrow arrangements. The officers of WS Investment Management Company, who are currently Martin Waters, Michael Danaher, James Hinson, and Rodney Strickland, have sole voting and dispositive 
 power over the shares. Wilson Sonsini Goodrich & Rosati, P.C. has provided legal services to IonQ and Lightsynq Technologies, Inc. in the last three years. The selling stockholder’s principal address is 650 Page Mill Road, Palo Alto,              
 CA 94304.                                                                                                                                                                                                                                              |

S-12

PLAN OF DISTRIBUTION The selling stockholders and their permitted assignees and successors-in-interestmay, from time to time, sell any or all of their shares covered hereby on the principal trading market or any other stock exchange, market or trading facility on which the shares are traded or in private transactions. These sales may be at fixed prices, at prevailing market prices at the time of sale, at prices related to the prevailing market price, at varying prices determined at the time of sale, or at negotiated prices. The selling stockholders may use any one or more of the following methods when selling shares:

| • |     | ordinary brokerage transactions and transactions in which the broker-dealer solicits purchasers; |

| • |     | block trades in which the broker-dealer will attempt to sell its shares as agent but may position and resell a 
 portion of the block as principal to facilitate the transaction;                                               |

| • |     | purchases by a broker