Quantinuum IPO Planned by Honeywell
Honeywell said Jan. 14 that a confidential S-1 submission launches the Quantinuum IPO process, initiating SEC review and prompting investor reassessment.
KEY TAKEAWAYS
- Honeywell said it plans a confidential draft Form S-1 submission to the SEC for a Quantinuum IPO.
- Number of shares and price range remain undetermined; offering depends on SEC review and market conditions.
- Prior 2025 financing raised $600 million at a reported $10.0 billion valuation, framing market expectations.
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Honeywell said in a press release on Jan. 14, 2026 ET that its majority-owned quantum computing unit Quantinuum plans to submit a confidential draft Form S‑1 registration statement to the U.S. Securities and Exchange Commission for a proposed IPO. The terms will be set after SEC review and depend on market conditions.
Confidential Form S‑1 Submission and Regulatory Notice
The company made the announcement under Rule 135 of the Securities Act of 1933, emphasizing that the statement does not constitute an offer to sell or solicit an offer to buy securities. Honeywell said it has not committed to completing any offering and that public details will be delayed as the SEC review proceeds.
The confidential filing initiates the SEC review process but leaves timing and pricing flexible. The number of shares and price range for the proposed offering have not been determined.
Quantinuum’s Funding, Scale, and IPO Context
Quantinuum was formed in 2021 by combining Honeywell Quantum Solutions and Cambridge Quantum. It operates as a full-stack quantum computing company, developing hardware, software, and cryptography. The business employs more than 630 people, including over 370 scientists and engineers, across the U.S., U.K., Germany, and Japan.
In 2025, Quantinuum raised $600 million from investors including a venture arm of Nvidia at a reported valuation of $10 billion. Sources close to the process have suggested an unverified potential valuation above $20 billion and a possible raise of about $1 billion. A separate report indicated a possible IPO window in late 2026 to 2027.
The confidential filing route allows Honeywell to maintain flexibility on timing and terms while beginning the SEC review. The prior funding and reported valuations provide a reference point for how the market might value the business ahead of a quantum computing IPO.
"Honeywell today announced that Quantinuum LLC, which is majority owned by Honeywell, plans to make a confidential submission of a draft registration statement on Form S‑1 to the U.S. Securities and Exchange Commission relating to the proposed initial public offering of Quantinuum's common stock," the company said in its press release.
