Will merger mania continue in 2016? By: CNBC.com News December 31, 2015 at 11:25 AM EST 2015 was a record year for mergers. Here's what the research reveals about how 2016 will compare, says Matt Porzio. Read More >> Related Stocks: AT&T Inc Allergan Plc Anheuser-Busch Inbev S.A. ADR Anthem Inc Atlantic Power Corp Cigna Corp Dow Chemical EMC Corp Marriott International Pfizer Rite Aid Corp Starwood Hotels & Resorts Walgreens Boots Alliance