Quantinuum Inc. raised $1.68 billion in an upsized U.S. initial public offering. The company sold 28 million shares at $60 each. This pricing exceeded the marketed range of $53 to $55 per share.

The offering values the Broomfield, Colorado-based company at approximately $15.6 billion. Significant investor demand for the quantum computing sector led to the oversubscribed results.

Honeywell retains majority control with 48.1% of the voting power. Shares will begin trading on the Nasdaq Global Market on June 4, 2026. The company will list under the ticker symbol QNT.