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QUANTINUUM TARGETS $1.46B IN EXPANDED IPO

AI DESK■ 1 MIN READ
MON, JUN 1, 2026

■ AI-SUMMARIZED FROM 1 SOURCE ▸ TIMELINE

Quantum computing startup Quantinuum has increased its initial public offering, planning to sell 26.5 million shares at $53-$55 each. The offering could raise up to $1.46 billion and value the Honeywell-backed company at $14.3 billion.

Quantinuum filed updated terms with the SEC for its upcoming IPO, boosting the share count and price range from earlier plans. At the midpoint of the proposed range, the offering would raise approximately $1.4 billion. The quantum computing company, backed by industrial conglomerate Honeywell International, operates in a sector attracting significant investor attention and venture capital funding. Quantum computing firms are developing hardware and software to solve complex computational problems beyond the reach of classical computers. Quantinuum's IPO comes amid broader market activity in the quantum computing space, where companies are racing to demonstrate practical applications and scalability. The company has previously partnered with major tech firms and research institutions on quantum projects. The pricing range and share count reflect market conditions and investor demand. Final pricing is expected following a roadshow with institutional investors.

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