On Thursday, R.R. Donnelley & Sons (RRD) announced that Chief Operating Officer John R. Paloian will leave that post Dec. 31. He is retiring after more than 25 years in the industry and more than five years as the company's COO, according to the company. He will remain an employee of the company until May 31.

Group President Daniel L. Knotts will take over as COO effective Dec. 31. As group president since April 2007, Knotts has been responsible for global sales, operations, information technology, logistics, financial services, business process outsourcing operations, strategic sourcing, and environmental, health and safety.

In a filing with the SEC, R.R. Donnelley said Knotts' compensation will be unchanged. Knotts, 48, joined RR Donnelley in 1986 and his roles with the company have included CEO of the company's global financial services offering.

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