Quantinuum Inc. (Nasdaq: QNT), a leading quantum computing company, announced today the closing of its upsized initial public offering. The company sold 28,000,000 shares of Class A common stock at $60.00 per share, generating aggregate gross proceeds of $1.68 billion before deducting underwriting discounts and other expenses. All shares were offered by Quantinuum. The company's Class A common stock now trades on the Nasdaq Global Market under the ticker symbol "QNT."
Underwriting and Offering Details
J.P. Morgan and Morgan Stanley served as joint lead active book-running managers. Jefferies and Evercore ISI also acted as active book-running managers. Additional joint-book running managers included BofA Securities, UBS Investment Bank, Cantor, Mizuho, Needham & Company, Societe Generale, and TD Cowen. Craig-Hallum and Rosenblatt acted as co-managers for the offering.
The registration statement was declared effective by the Securities and Exchange Commission (SEC) on June 3, 2026. A prospectus describing the terms of the offering has been filed with the SEC and is available on the SEC's website. Copies may be obtained from the underwriting firms.
About Quantinuum
Quantinuum is a premier quantum computing company offering a full-stack platform for real-world deployment. It has commercially launched multiple generations of quantum systems based on the QCCD architecture, achieving industry-leading accuracy with average two-qubit gate fidelity as of December 31, 2025. The company collaborates with market leaders in pharmaceuticals, material science, financial services, and government and industrial sectors. Headquartered in Broomfield, Colorado, Quantinuum also has facilities in the United States, United Kingdom, Germany, Japan, Qatar, and Singapore.
This press release does not constitute an offer to sell or a solicitation of an offer to buy securities in any jurisdiction where such activity would be unlawful.



