Geoffrey W. Mangum

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Geoffrey W.Mangum
Phone: 801.532.1234
Direct: 801.536.6940

Geoffrey W. Mangum is a shareholder at Parsons Behle & Latimer and is past chair of the firm’s Corporate, Securities and Tax practice group, where he concentrates his practice on corporate and commercial matters, with an emphasis on negotiating and structuring complex business transactions.

Prior to joining Parsons, Mr. Mangum was an executive with American Stores Company, a Fortune 400 Company, and was responsible for business unit acquisitions and dispositions. As legal counsel of the company's treasury department, Mr. Mangum was also involved in negotiating and documenting complex financing arrangements. Prior to joining American Stores Company, he was a shareholder in the law firm of Prince Yeates & Geldzahler.

Mr. Mangum also led the successful conclusion of 13 years of litigation on behalf of his client, Christensen, Inc., against the Islamic Republic of Iran, arising out of Iran's seizure of Christensen's Iranian subsidiary following the Ayatollah Khomeini's rise to power.

Mr. Mangum is recognized in Best Lawyers in America and maintains a top ranking in Chambers & Partners Client Guide.

Practice Areas



Georgetown University Law Center, J.D., 1979

University of Utah, B.A., 1976

Magna Cum Laude


Listed as a "Top Lawyer Named by Their Peers" and in Mountain States Super Lawyers

Recognized by Utah Business magazine as one of Utah's "Legal Elite"

Ranked as one of the Best Lawyers in America, published by Woodward/White Inc.

Maintains a top ranking by Chambers & Partners Client Guide

Maintains Martindale-Hubbell's highest rating, an AV® Preeminent™



American Bar Association

Utah Bar Association


Kingsbury Hall Presents Board of Trustees
Member and Chair
(2011 - 2017)

University of Utah World Leaders Forum Advisory Cabinet
Past Member

Utah Council for Citizen Diplomacy Board of Trustees
Past Member




Georgetown University Law Center