Quantinuum (QNT Proposed) – a quantum computing hardware and software company – upsized its IPO early today to raise $1.43 billion – up from its initial size of $1 billion – according to its S-1/A filing dated June 1, 2026. For the record: Quantinuum (QNT Proposed) – whose roots are in Honeywell – increased the number of shares to 26.5 million shares – up from 21.05 million shares initially – and raised the price range to $53.00 to $55.00 – up from $45.00 to $50.00 initially – to raise $1.43 billion – if priced at the $54.00 mid-point of its new range, the company disclosed in its June 1, 2026, filing. The new terms were made public in the SEC filing about an hour ahead of the opening bell.
Quantinuum was formed in 2021 through the combination of Honeywell Quantum Solutions and Cambridge Quantum, the prospectus said.
J.P. Morgan and Morgan Stanley are the lead active book-running managers.
Quantinuum’s IPO is set to price on Wednesday night, June 3, 2026, to trade Thursday, June 4, on the NASDAQ.
(For more information about this company, please check the IPO Calendar and the individual IPO Profile found on the IPOScoop.com website.)
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