Kroger CEO Rodney McMullen is resigning following a probe into his personal conduct, the grocery chain said Monday. McMullen, who was both the chairman and CEO, is out after a company board investigation found that his personal conduct,

The supermarket chain said Rodney McMullen’s conduct wasn’t related to its financial performance or operations but it was inconsistent with its ethics policy.

Kroger Co. replaced Chief Executive Officer Rodney McMullen following an investigation into his personal conduct, casting a shadow on the supermarket operator’s path forward following a failed deal and a string of management departures under the longtime leader.