Quantinuum has closed its upsized initial public offering of 28,000,000 shares of its Class A common stock at an IPO price of $60.00 per share.
All of the shares were offered by Quantinuum. The aggregate 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.”
JP Morgan and Morgan Stanley acted as joint lead active book-running managers for the offering; Jefferies and Evercore ISI also 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 for the offering.
A registration statement relating to this offering was declared effective by the Securities and Exchange Commission 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.
