Mr. Mackay is a shareholder of Ray Quinney & Nebeker in the firm’s litigation section. He is recognized by his peers as one of The Best Lawyers in America in Antitrust Law and has been selected for inclusion in Mountain States Super Lawyers (2013-2018) in the categories of Business Litigation and Antitrust Litigation. Mr. Mackay maintains an AV Preeminent (5.0) rating with Martindale-Hubbell, which is the highest rating awarded to attorneys for professional competence and ethics, and has also been voted by his peers throughout the state as one of Utah’s “Legal Elite,” as published in Utah Business Magazine (2006, 2008, 2010-2011, 2015-2019).
Mr. Mackay’s practice involves complex business litigation, with an emphasis on antitrust litigation, unfair competition and business torts, corporate litigation, shareholder disputes, shareholder derivative litigation, securities litigation, network marketing and distributorship terminations, and product liability litigation. Mr. Mackay has broad experience in class-action litigation including cases transferred for national multi-district litigation (MDL) proceedings.
In addition to commercial litigation, Mr. Mackay has litigated numerous antitrust cases under Sections 1 and 2 of the Sherman Act, the Clayton Act, and the Robinson-Patman Act in industries that include various software products and software markets, managed health care, hospitals, chemicals, airplane fuel, health supplements, baked goods, waste products, gas stations, and real estate. He counsels large and small companies in implementing antitrust compliance programs, and document retention policies, and in responding to government inquiries and subpoenas.
Mr. Mackay is also a member of the firm’s product liability section, where he defends mass tort actions on behalf of pharmaceutical and medical device manufacturers, with a current emphasis on MDL litigation surrounding prescription drugs and cox-2 inhibitors.
REPRESENTATIVE REPORTED CASES
University of Virginia, J.D., 1994
Dartmouth College, B.A., Government, 1990
Admitted to Practice -
Utah State Bar, 1994
United States Court of Appeals, Tenth and Eighth Circuits
United States District Court, District of Utah
United States Court of Appeals, Seventh Circuit