CHARLOTTESVILLE, Va.--(BUSINESS WIRE)--Quad-C Management, a leading middle market private equity firm, today announced the firm and its management partners have sold portfolio company Cloverhill Bakery (“Cloverhill”), a leading manufacturer of individually wrapped sweet baked goods, to Switzerland-based global food business ARYZTA AG. The deal closed on March 25, 2014. Quad-C invested in Cloverhill in 2009. Founded in 1961 and headquartered in Chicago, Illinois, Cloverhill is a leading innovato