Mike Sievert

Portrait
Mike Sievert, T-Mobile US, Inc.
Vice Chairman of the Board and Former Chief Executive Officer

MIKE SIEVERT, 55, joined Starbucks as a director effective January 9, 2024.  Mike Sievert is the former Chief Executive Officer and current Vice Chairman of the board of directors of T-Mobile, one of the world's largest telecommunications companies.  He served as Chief Executive Officer from April 2020 through October 2025.  Mr. Sievert also served as T-Mobile’s President, Chief Operating Officer, and Director from 2018 to 2020 and as Chief Operating Officer from 2015 to 2018, and as Executive Vice President and Chief Marketing Officer from 2012 to 2015, after joining T-Mobile in November of 2012. During Mike’s tenure as CEO, T-Mobile became the world’s most admired telecommunications company — leading the U.S. in customer satisfaction, growth, and shareholder value creation. He and his team built T-Mobile’s world-leading 5G network, recognized by multiple third parties as the nation’s best, and used it to establish T-Mobile as the fastest-growing business provider and the creator of the 5G home broadband market at scale. Mike also championed initiatives to expand connectivity, including Project 10Million, which provides free and subsidized service to millions of students. His leadership earned recognition as CNN’s “CEO of the Year” (2022) and Yale’s “Legend in Leadership Award”. Prior to joining T-Mobile, Mr. Sievert held senior executive positions at Clearwire (2009 to 2011), which is now part of T-Mobile, Microsoft (2005 to 2008), AT&T Wireless (2002 to 2004), and E*TRADE (1998 to 2001). In addition, he has served as an entrepreneur and investor involved with several Seattle-area start-up companies. In 2008 and 2009, Mr. Sievert was cofounder and Chief Executive Officer of Switchbox Labs, Inc., a consumer technologies developer, leading up to its sale to Lenovo, where he briefly served after the acquisition. Sievert started his career with management positions at Procter & Gamble and IBM. Mr. Sievert served as director of Shaw Communications from 2018 to 2023. He has also served on the boards of Rogers Wireless Communications in Canada, Switch & Data Corporation, and a number of technology start-ups. Mr. Sievert earned a bachelor’s degree in economics from the Wharton School at the University of Pennsylvania in 1991.

 

Committee(s):

  • Compensation and Management Development Committee