NEW YORK, September 15, 2016 – MidOcean Partners (“MidOcean”), a premier middle market private equity firm, and Wasserstein & Co. (“Wasserstein”), a leading independent private equity and investment firm, today announced that they have entered into a definitive agreement to sell Penton, an innovative professional information services company, to Informa plc (“Informa”) for $1.56 billion.  The consideration will consist of $1.46 billion of cash (plus adjustments) and $100 million of Informa stock.