D-Wave Quantum (QBTS) Stock After Hours (Dec. 23, 2025): Insider Sales Hit Shares, Modest Bounce After the Bell — What to Know Before the Dec. 24 Open
D-Wave Quantum (QBTS) fell 9.5% to $29.12 Tuesday after insider sales by CEO Alan Baratz and CFO John Markovich were disclosed in SEC filings. The stock rebounded about 1.6% in after-hours trading, hovering near $29.61 as investors processed the news and heavy trading volume.