John W. Mackay - Ray Quinney & Nebeker PC

John W. Mackay

Listed in Best Lawyers since 2005
Phone: 801-323-3341

Mr. Mackay is a shareholder of Ray Quinney & Nebeker in the firm's litigation section. Mr. Mackay is recognized by his peers as one of The Best Lawyers in America in Antitrust Law and maintains an AV Preeminent (5.0) rating with Martindale-Hubbell, which is the highest rating awarded to attorneys for professional competence and ethics. Mr. Mackay has been voted by his peers throughout the state as one of Utah’s “Legal Elite” in the category of Business Litigation (as published in Utah Business Magazine).

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.

Dartmouth CollegeBA 1990University of VirginiaJ.D. 1994

Office Location

36 South State Street, Suite 1400
P.O. Box 45385
Salt Lake City, UT 84145-0385
United States


Practice Areas

Antitrust Law (Trade Regulation)

Other Information

Gender: Male