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IONQ 424B5: Secondary offering

Filed with the SEC on · accession 0001193125-26-421072

IONQ filed a 424B5 (prospectus (offering)) with the SEC on Oct 14, 2026. IonQ, Inc. is conducting a public offering of 20,500,000 shares of common stock and 29,500,000 pre-funded warrants, each bundled with Series C warrants, at a combined price of $40.00 per share/warrant, raising approximately $2.0 billion in gross proceeds. The stock moved -9.5% by the first close after the filing.

Summary of the filing

IonQ, Inc. is conducting a public offering of 20,500,000 shares of common stock and 29,500,000 pre-funded warrants, each bundled with Series C warrants, at a combined price of $40.00 per share/warrant, raising approximately $2.0 billion in gross proceeds. The offering is underwritten by J.P. Morgan.

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Key details

Total public offering price$2.0B
Underwriting discounts$10.0M
Proceeds before expenses to issuer$2.0B
Public offering price per share (with two Series C Warrants)$40
Public offering price per pre-funded warrant (with two Series C Warrants)$40
Exercise price per Series C Warrant$69
Exercise price per Pre-funded Warrant$0
IssuerIonQ, Inc.
Sole underwriterJ.P. Morgan

How IONQ stock reacted

Close before

$34.73

Oct 13, 2026

First close after

-9.53%

$31.42

5 trading days

-9.99%

$31.26

Since filing

-15.09%

$29.49

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Frequently asked questions

What did IONQ file with the SEC on Oct 14, 2026?

IONQ filed a 424B5 (Secondary offering). IonQ, Inc. is conducting a public offering of 20,500,000 shares of common stock and 29,500,000 pre-funded warrants, each bundled with Series C warrants, at a combined price of $40.00 per share/warrant, raising approximately $2.0 billion in gross proceeds. The offering is underwritten by J.P. Morgan.

What does a secondary offering mean for IONQ stock?

New shares dilute existing holders and are often sold at a discount to the market price.

How do I read a 424B5?

The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 424B5 (prospectus (offering)): The final terms of an offering of shares or bonds.

How did IONQ stock react to this filing?

IONQ closed at $34.73 before the filing and $31.42 on Oct 14, 2026 (-9.53%). Five trading days later: $31.26 (-9.99%).

Other IONQ SEC filings

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