Ollie’s Bargain Outlet Holdings, Inc. announced that Mario Sampson has joined the company as senior vice president of supply chain, effective immediately. Mr. Sampson will report to Eric van der Valk, executive vice president and chief operating officer. He will be a key member of its leadership team with responsibilities that include oversight of Supply Chain, including Domestic and International transportation, logistics, and distribution centers. Mr. Sampson most recently served as Senior Vice President of Operations at Unique Industries.