Quantinuum is a quantum computing company formed by the merger of Cambridge Quantum and Honeywell Quantum Solutions. It builds trapped-ion quantum computers and software for research, chemistry, and cybersecurity use cases.
UpMarket does not offer Quantinuum shares. This page covers Quantinuum's history before it went public.
Status
Public
Nasdaq: QNT, since Jun 2026
Last Private Valuation
Not confirmed
Not confirmed by two independent reputable sources
How to Review Quantinuum's Pre-IPO History on UpMarket
Quantinuum became a public company on June 4, 2026 and trades on Nasdaq as QNT. UpMarket does not offer Quantinuum shares. This page covers Quantinuum's valuation and funding history before it went public.
Step 01
Check the listing details
Quantinuum listed on Nasdaq under the ticker QNT on June 4, 2026.
Step 02
Review the valuation history
See how Quantinuum's private-market valuation changed across funding rounds before it went public.
Step 03
Review funding and revenue data
See reported funding rounds and revenue figures on this page, with their sources.
Step 04
Explore private companies
Accredited investors can review UpMarket's current pre-IPO offerings in companies that have not yet gone public.
Pre-IPO investments are illiquid, speculative, and involve risk of total loss of capital.
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Quantinuum says it has the world's highest-performing quantum computer and a full-stack technology platform built by world-class scientists. The company describes its integrated hardware and software stack as a basis for scaling quantum computing across scientific and commercial uses.
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Yes. Quantinuum became a public company on June 4, 2026 and trades on Nasdaq under the ticker QNT. UpMarket does not offer Quantinuum shares.
Quantinuum's share price is set on the public market under the ticker QNT. The prices shown on this page are historical private-market prices from before it went public.
No. Quantinuum is now a public company and UpMarket does not offer its shares. Accredited investors interested in companies that have not yet gone public can review UpMarket's current pre-IPO offerings.
Quantinuum is now publicly traded, so its shares can be bought and sold on Nasdaq and their price can change significantly. Review Quantinuum's public filings and consult a financial advisor before investing. UpMarket does not offer Quantinuum shares.
In a pre-IPO transaction, accredited investors purchase shares from existing shareholders (such as employees, early investors, or other holders) through secondary market platforms. The company itself does not issue new shares in these transactions. UpMarket facilitates these trades as a FINRA-registered broker-dealer, handling compliance, documentation, and settlement on behalf of both parties.
Quantinuum became a public company on June 4, 2026, so shares held before the listing can generally be sold on the public market once any lock-up period ends. The exact terms depend on how the shares are held, for example directly or through a fund.
UpMarket does not offer Quantinuum shares. The minimum for most pre-IPO offerings on UpMarket is $50,000.
Quantinuum's valuation is now set by its public share price on Nasdaq. The figures on this page show its valuation history before it went public.
Quantinuum is a quantum computing company formed by the merger of Cambridge Quantum and Honeywell Quantum Solutions. It became a public company in Jun 2026. UpMarket does not offer its shares.