Quantinuum Has Submitted a Confidential S-1 Filing to the U.S. SEC for a Proposed Initial Public Offering (IPO) of their Common Stock

 Quantinuum LLC, a quantum hardware company majority owned by Honeywell, has filed a confidential S-1 form on February 17, 2026 with the U.S. Security and Exchange Commission (SEC) for a proposed Initial Public Offering (IPO) of Quantinuum’s common stock. This detailed registration statement will undergo heavy review by the SEC and typically includes the following information:

This includes:

• Audited financial statements (typically 2–3 years)

• Detailed business model and strategy

• Risk factors (often dozens of pages)

• Executive compensation

• Industry and competitive analysis

• Use of proceeds

• Legal issues and governance structure

The number of shares being offered, the offering price, and the potential valuation have not been determined yet, but the company did receive a valuation of $10 billion in a previous fundraising round ​last September.

Although many other quantum related companies have gone public over the last few years, what makes this transaction different is that it is going the route of a traditional IPO. Eleven other quantum companies, including IonQ, Rigetti Computing, D-Wave Quantum, Infleqtion, Xanadu, IQM Quantum, Pasqal, SEEQC, Arqit Quantum, Terra Quantum, and Horizon Quantum have either completed or announced they will be going public through a SPAC (Special Purpose Acquisition Company). In addition, four other companies including Quantum Computing Inc., Quantum eMotion, QuantumCore, BTQ, and Archer Materials became public companies via a reverse merger.

IPOs require more documentation and undergo more rigorous reviews. They also take longer to complete. But it's a very transparent, standardized process designed to give investors a full picture before shares are sold and may provide the company with a higher valuation once it is completed.

A press announcement about this filing has been provided by Honeywell, Quantinuum's majority owner and is posted on the Honeywell website here.

April 25, 2026