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 Inc. (NYSE: QBTS) ended Tuesday, December 23, 2025, on a sharply volatile note: a steep pullback during the regular session—coming right after Monday’s surge—followed by a small rebound in after-hours trading as investors digested new insider-trading filings and