Katrina M. Robson is a globally recognized antitrust trial lawyer, with experience trying merger, single-firm conduct and restraint of trade cases at O’Melveny. Her advocacy has made material differences in the business of some of the country’s most recognized companies. She defended AT&T and Time Warner’s $100 billion telecommunications-media merger against a challenge by the Department of Justice in the “antitrust trial of the century”, one of only three trial attorneys representing both clients; won a rare rule-of-reason jury verdict for US Airways in its antitrust action against Sabre, a technology-based global distribution services company; and obtained clearance for Schwab’s $26 billion acquisition of TD Ameritrade, US Airways’ $11 billion merger with American Airlines, and General Mill’s acquisition of organics icon Annie’s.

Katrina has represented Fortune 500 companies in dozens of proceedings ranging from agency investigations to private and government litigation. She also counsels clients on a variety issues, including monopolization, vertical restraints and integration, merger advocacy and clearance, general antitrust compliance, and global litigation strategy. Her expertise has been recognized by leading publications including Legal 500 US (for both antitrust and general commercial disputes) and Global Competition Review (on its international list of “Women in Antitrust”).