Albertsons said on Monday that its CEO Vivek Sankaran would be retiring and insider Susan Morris would assume the role, effective May 1.

The CEOs of both Kroger Co. and Albertsons Companies Inc., the two grocery giants that were involved in a failed mega-acquisition attempt, are both leaving their respective companies. Cincinnati-based Kroger announced Monday morning that Rodney McMullen resigned from the company “following a board investigation of his personal conduct that,

Ron Sargent, lead director of Kroger’s board of directors, was appointed to serve as CEO and chairman of the board on an interim basis. During the company’s Q4 earnings call this week, Sargent said Kroger has hired a nationally recognized search firm and will look at internal and external candidates to replace McMullen on a permanent basis.

The leadership changes come just a few months after a federal judge temporarily halted a proposed merger between Kroger and Albertsons.

In December, federal and state courts blocked the attempted merger between two of Colorado’s grocery store giants: Albertsons (Safeway) and Kroger (King Soopers, City Market). The merger was challenged by the Federal Trade Commission

The supermarket giant continues to push various growth initiatives despite higher grocery prices hitting the pocketbooks of consumers.