Stock Markets May 26, 2026 07:15 AM

Quantinuum Files for U.S. IPO, Seeks Valuation up to $12.7 Billion

Quantum computing company submits plan to sell about 21 million shares as it prepares to list on Nasdaq under 'QNT'

By Caleb Monroe

Quantinuum, the quantum computing company spun out of Honeywell and merged with Cambridge Quantum, has filed for a U.S. initial public offering. The Broomfield, Colorado-based firm intends to offer roughly 21,052,632 shares at a price range of $45 to $50 per share, aiming to raise up to $1.05 billion and to reach a market valuation of as much as $12.7 billion.

Quantinuum Files for U.S. IPO, Seeks Valuation up to $12.7 Billion

Key Points

  • Quantinuum plans to sell roughly 21,052,632 shares at $45 to $50 each, targeting up to $1.05 billion in proceeds.
  • The proposed valuation of up to $12.7 billion is higher than the $10 billion valuation from its most recent funding round.
  • The offering arrives as investors show renewed interest in strategic technology sectors including AI infrastructure, defense and critical technologies.

Quantinuum, the quantum computing business that separated from Honeywell and later combined with Cambridge Quantum, revealed plans to pursue a U.S. initial public offering that could value the company as high as $12.7 billion.

The company, headquartered in Broomfield, Colorado, said it would seek to sell about 21,052,632 shares with an expected price range of $45 to $50 per share. At the top end of that range, the offering could raise up to $1.05 billion. That prospective valuation represents an increase from the $10 billion valuation Quantinuum achieved in its most recent private funding round.

Quantinuum was formed in 2021 following its split from Honeywell and its subsequent merger with Cambridge Quantum. Honeywell CEO Vimal Kapur chairs the company, and it is led operationally by Rajeeb Hazra, who previously worked at Intel.

The firm named J.P. Morgan and Morgan Stanley as joint lead active book-running managers for the deal. A roster of additional underwriters was disclosed, including:

  • BofA Securities
  • UBS Investment Bank
  • Jefferies
  • Evercore ISI
  • Cantor
  • Mizuho
  • Needham & Company
  • Societe Generale
  • TD Cowen
  • Craig-Hallum
  • Rosenblatt

The company indicated plans to list its shares on the Nasdaq exchange under the ticker symbol "QNT."

Quantinuum's decision to proceed with the public offering comes at a time when new listings are drawing interest from investors focused on areas regarded as strategically important. The company cited sectors such as AI infrastructure, defense and other critical technologies as areas that have been attracting investor attention, noting that demand for new listings in these fields has increased against a backdrop of geopolitical uncertainty.


Context and market placement

While the filing sets out the proposed share count and price range, the final terms will be determined prior to the IPO. The proposed valuation is higher than the companys prior private market valuation, and the offering has been structured with a broad syndicate of banks to manage the sale and distribution of shares.

Risks

  • Geopolitical uncertainty is cited in the filing as a factor in the market environment, which could affect investor demand for new listings - this impacts companies in strategic technology sectors.
  • The proposed valuation represents an increase from the prior $10 billion valuation, introducing potential valuation risk if market reception differs from expectations - this affects equity investors and market sentiment.
  • Final IPO terms have yet to be set, meaning proceeds and valuation could change before listing - this introduces execution risk for the offering and for participants in the equity capital markets.

More from Stock Markets

Boeing Examining Faster 737 Output, Evaluating Supplier Capacity to Approach Airbus Levels Jun 4, 2026 MOEX slips as mining, oil & gas and power names weigh on market Jun 4, 2026 Walmart rolls Subway into its 30-minute express delivery program as e-commerce competition intensifies Jun 4, 2026 Merlin Shares Rally After C-130J Program Clears Critical Design Review Jun 4, 2026 S&P Lowers Wabash National Credit Rating, Cites Weak Cash Flow and Tightening Liquidity Jun 4, 2026