CHICAGO (AP) ¿ LKQ Corp., which makes vehicle replacement parts, said Monday that John S. Quinn will become its chief financial officer and executive vice president in the fourth quarter.

Quinn has been chief financial officer, senior vice president and treasurer of Casella Waste Systems Inc. since January. Before that, he spent eight years with Allied Waste Industries Inc.

Shares closed down 92 cents, or 5.2 percent, to $16.72.

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