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
