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BROOMFIELD, ColoradoJune 8, 2026 /PRNewswire/ — Quantinuum Inc. (Nasdaq: QNT) (“Quantinuum”) today announced the closing of its upsized initial public offering of 28,000,000 shares of its Class A common stock at a price of $60.00 per share to the public. All shares were offered by Quantinuum. The total gross proceeds from the offering, before deducting underwriting discounts and commissions and other offering expenses, were $1.68 billion. Quantinuum’s Class A common stock is listed on the Nasdaq Global Market under the ticker symbol “QNT”.
J.P. Morgan and Morgan Stanley (listed alphabetically) acted as lead joint active book-running managers for the offering; Jefferies and Evercore ISI acted as active book-running managers; BofA Securities, UBS Investment Bank, Cantor, Mizuho, Needham & Company, Societe Generale and TD Cowen acted as joint book-running managers; and Craig-Hallum and Rosenblatt acted as co-managers.
The registration statement relating to this offering was declared effective by the U.S. Securities and Exchange Commission (the “SEC”) on June 3, 2026. A prospectus relating to and describing the terms of the offering has been filed with the SEC and is available on the SEC’s website at www.sec.gov. The offering was made only by means of a prospectus. Copies of the final prospectus may be obtained from: J.P. Morgan Securities LLC, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, New York 11717, or by email at prospectus-eq_fi@jpmchase.com and postsalemanualrequests@broadridge.com; Morgan Stanley & Co. LLC, 180 Varick Street, 2nd Floor, New York, New York 10014, Attention: Prospectus Department, or by email at prospectus@morganstanley.com; Jefferies LLC, Attn: Equity Syndicate Prospectus Department, 520 Madison Avenue, New York, New York 10022, telephone: (877) 821-7388, or by email at Prospectus_Department@Jefferies.com; or Evercore Group L.L.C., Attention: Equity Capital Markets, 55 East 52nd Street, 35th Floor, New York, New York 10055, telephone: 888-474-0200, or by email at ecm.prospectus@evercore.com.
This press release does not constitute an offer to sell or a solicitation of an offer to buy. In any state or jurisdiction where such an offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of such state or jurisdiction, no such offer, solicitation, or sale shall be made.
About Quantinuum
Quantinuum is a leading quantum computing company, providing a full-stack platform that advances the deployment of quantum computing in real-world settings. The company has commercially deployed multiple generations of quantum systems based on a proven QCCD architecture, incorporating novel designs and features. As of December 31, 2025, its average two-qubit gate fidelity has reached the highest level of precision in the industry. Quantinuum actively collaborates with market-leading institutions in pharmaceuticals, materials science, financial services, and government and industrial markets. Quantinuum is headquartered in Broomfield, Colorado, with additional facilities in the United States, the United Kingdom, Germany, Japan, Qatar, and Singapore.