Practice Profile: Christina Ma is a partner in the antitrust department of Wachtell, Lipton, Rosen & Katz. Her practice focuses on analyzing competition issues arising out of mergers, acquisitions, and joint ventures and advising and representing clients before the U.S. and international antitrust authorities. Christina has guided clients through extensive agency merger investigations, trials, and antitrust compliance matters in varied industries, including banking and financial services, consumer products, energy, pharmaceuticals, technology, and retail and wholesale operations.