Stock Markets June 3, 2026 08:39 PM

Quantinuum Prices Upsized IPO, Raising $1.68 Billion Backed by Honeywell

Broomfield-based quantum computing firm sets 28 million shares at $60; Nasdaq debut expected under ticker QNT ahead of scheduled close on June 5

By Avery Klein HON

Quantinuum, a quantum computing company supported by Honeywell, completed an upsized U.S. initial public offering that generated approximately $1.68 billion in gross proceeds. The company sold 28 million shares at $60 apiece and is expected to begin trading on the Nasdaq Global Market under the ticker QNT, with the offering set to close on June 5.

Quantinuum Prices Upsized IPO, Raising $1.68 Billion Backed by Honeywell
HON

Key Points

  • Quantinuum sold 28 million shares at $60 apiece, generating gross proceeds of about $1.68 billion.
  • Shares are expected to begin trading on the Nasdaq Global Market under the ticker QNT, with the offering set to close on June 5.
  • The company develops full-stack quantum computing systems and software and counts Honeywell as a key backer; the technology is cited as potentially transformative for pharmaceuticals, materials science, and finance.

Quantinuum, a developer of full-stack quantum computing systems and software backed by Honeywell (NASDAQ:HON), raised roughly $1.68 billion in an upsized U.S. initial public offering, the company said on Wednesday.

The Broomfield, Colorado-based firm priced 28 million shares at $60 each, placing the final price above the midpoint of the previously marketed range and producing gross proceeds of about $1.68 billion.

Quantinuum’s stock is expected to begin trading on the Nasdaq Global Market on Thursday under the ticker symbol "QNT." The offering is scheduled to close on June 5.

The company builds integrated quantum computing hardware and software stacks. Honeywell is identified among its principal backers. Quantinuum has positioned itself to take advantage of elevated investor interest in quantum computing, a technology the company and many market participants regard as a potential breakthrough for solving complex problems across several areas, including pharmaceuticals, materials science, and finance.

The IPO was led by J.P. Morgan and Morgan Stanley, with Jefferies and Evercore ISI also serving as active book-running managers.


Context and immediate implications

This transaction represents a significant capital raise for a firm focused on quantum systems and software. By pricing above the midpoint of the marketed range, Quantinuum sold a block of 28 million shares at $60 each, producing roughly $1.68 billion in gross proceeds. The company’s planned Nasdaq listing under the symbol QNT and the scheduled close on June 5 are the next milestones in the process.

What the company does

  • Quantinuum develops full-stack quantum computing systems and supporting software.
  • Honeywell is listed as a key backer.
  • The company aims to address complex problems in industries such as pharmaceuticals, materials science, and finance.

Transaction parties

  • Lead book-runners: J.P. Morgan and Morgan Stanley.
  • Additional active book-runners: Jefferies and Evercore ISI.

The information provided reflects the company’s statements regarding the offering size, pricing, expected trading symbol, and the scheduled closing date. No additional projections or forward-looking claims are included beyond those facts.

Risks

  • The offering has not yet closed - the scheduled close date is June 5, leaving the transaction subject to completion risks that could affect deal finalization and allocation.
  • Market reception at the Nasdaq listing remains to be seen - shares are only expected to begin trading on Thursday, creating uncertainty about short-term price response.
  • Realization of quantum computing’s potential in sectors such as pharmaceuticals, materials science, and finance remains an open question - the article notes the technology is widely viewed as a potential breakthrough but does not assert guaranteed outcomes.

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