The Broomfield, Colorado-based company plans to sell about 21 million shares at $45 to $50 each, aiming to raise up to $1.05 billion

Quantinuum, the Honeywell-majority-owned quantum-computing firm, is targeting a $12.7bn IPO valuation, well below the $20bn-plus whispers earlier this month.

May 26 : Honeywell's Quantinuum is targeting a valuation of up to $12.7 billion in its U.S. initial public offering, it said on Tuesday, as it looks to capitalize on heightened…