Darren Huston

Online travel giant Priceline Group Inc. said Chief Executive Officer Darren Huston is resigning after an investigation found he had a personal relationship with an employee that violated the company's code of conduct, handing the company's reins back to the former CEO that led its rapid expansion in the 2000s.

Online travel giant Priceline Group Inc. said Chief Executive Officer Darren Huston is resigning after an investigation found he had a personal relationship with an employee that violated the company's code of conduct, handing the company's reins back to the former CEO that led its rapid expansion in the 2000s.