Quantinuum Targets $12.7B Valuation in US IPO, Backed by Honeywell

Quantinuum targets a valuation of up to $12.7 billion in its U.S. initial public offering.

The quantum computing firm plans to raise up to $1.05 billion. It will offer approximately 21.1 million shares. The price range is set between $45 and $50 per share.

This target exceeds the $10 billion valuation reached previously. The company secured that valuation during a September 2025 funding round.

Honeywell Quantum Solutions and Cambridge Quantum merged to form the entity in 2021. Quantinuum will list on the Nasdaq under the ticker symbol QNT. Honeywell will remain the majority shareholder following the public offering.