Ex-Kroger CEO Rodney McMullen left over $11 million on the table when he left the grocer, according to the company's SEC filings.

Here's what you should know about Kroger CEO Rodney McMullen, who resigned following "a board investigation of his personal conduct."

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Under his leadership, Kroger has positioned itself as a formidable competitor to Walmart, Amazon, and other grocery giants.

Former Kroger CEO Rodney McMullen forfeited $11.2 million of unvested stock and options and eligibility for a bonus for the fiscal year ended Feb. 1.

Rodney McMullen, Kroger chairman and CEO, is stepping down after an internal investigation into his personal conduct.

Kroger appointed lead director Ronald Sargent as interim CEO, replacing its 10-year veteran leader after a failed merger with Albertsons.

His departure follows a company board investigation into conduct “unrelated to the business,” the grocer said.

The Kroger Co. announced Monday that CEO Rodney McMullen has resigned. That resignation came after an investigation found McMullen guilty of “certain personal conduct.” The conduct was unrelated to Kroger’s business and its associates,

Kroger Co.’s interim leader urged employees to forge ahead following an abrupt exit of his predecessor, according to a recording of an internal meeting viewed by Bloomberg News.