Meet the board of directors.

Question 1

Timotheus Höttges | Chairman of the Board

Accepted Answer

Timotheus Höttges has served as a director of T-Mobile and chairman of the board since April 30, 2013 and is a member and chair of the CEO Selection Committee and the Executive Committee of T-Mobile’s Board of Directors. Since January 2014, Mr. Höttges has served as chief executive officer of Deutsche Telekom, T-Mobile’s majority stockholder and a leading integrated telecommunications company. From March 2009 to December 2013, he served as Deutsche Telekom’s chief financial officer (CFO) and a member of the board of management. From December 2006 to March 2009, he was a member of the board of management responsible for the T-Home Unit (fixed-network and broadband business, as well as integrated sales and service in Germany). From January 2003 to December 2006, Mr. Höttges headed European operations as a member of the Board of Management of T-Mobile International. Timotheus also currently serves on the board directors of Daimler AG and previously served on the board of directors of Henkel AG & Co. KgaA and BT Group plc. Mr. Höttges studied Business Administration at the University of Cologne.

Question 2

Marcelo Claure

Accepted Answer

Marcelo Claure has served as a director of T-Mobile since April 1, 2020, and is a member of the CEO Selection Committee, Compensation Committee and Executive Committee of T-Mobile’s Board of Directors. Mr. Claure served as the Chief Executive Officer of SoftBank International and Chief Operating Officer of SoftBank from May 2018 until January 2022. Mr. Claure was Executive Chairman of Sprint prior to the Sprint Combination and had served on the Sprint board of directors since January 2014. Previously, Mr. Claure served as Sprint’s President and Chief Executive Officer, serving as President from August 2014 until January 2018 and as Chief Executive Officer from August 2014 until May 2018. In addition, Mr. Claure served as a director of SoftBank from 2017 to 2020. He was also Executive Chairman of WeWork from October 2019 until January 2022. He currently serves as Vice Chairman of the Board of Directors of TelevisaUnivision and is a member of the Board of Directors of Brightstar and Carnegie Hall. Prior to joining Sprint, Mr. Claure was Chief Executive Officer of Brightstar Corp., a company he founded in 1997 and grew from a small Miami-based distributor of mobile device accessories into a global business with more than $10 billion in gross revenue for the year ended 2013. He is a member of the 2016 Class of Henry Crown Fellows and Aspen Global Leadership Network at the Aspen Institute. He is also a member of the Presidential CEO Advisory Board of MIT.

Mr. Claure holds a Bachelor’s degree in Economics and Finance and an honorary Doctorate degree in Commercial Science from Bentley University in Massachusetts.

Question 3

Srikant M. Datar

Accepted Answer

Srikant M. Datar has served as a director of T-Mobile since April 30, 2013 and is the chair of the Audit Committee of T-Mobile’s Board of Directors. Mr. Datar is the George F. Baker of Administration and Dean of Faculty of the Graduate School of Business Administration at Harvard University. Mr. Datar is a Chartered Accountant and planner in industry and has been a professor of accounting and business administration at Harvard since July 1996. He previously served as a professor at Stanford University and Carnegie Mellon University. Mr. Datar is also a member of the boards of directors of ICF International Inc., where he is a member of the corporate governance and nominating committee; Stryker Corporation, where he is a member of the audit and finance committees. Mr. Datar previously served on the board of directors of Novartis AG, where he was also the chairman of the audit and compliance committee, and a member of the chairman's committee, the risk committee, and the compensation committee.

Mr. Datar received gold medals upon his graduation from the Indian Institute of Management, Ahmedabad, and the Institute of Cost and Works Accountants of India. Mr. Datar received a Master's degree in Statistics and Economics and a Ph.D. in Business from Stanford University.

Question 4

Dr. Christian P. Illek

Accepted Answer

Dr. Christian P. Illek has served as a director of T-Mobile since November 2018, and is a member of the CEO Selection Committee, Compensation Committee, Executive Committee and Transaction Committee of T-Mobile’s Board of Directors. Dr. Illek has served as the chief financial officer of Deutsche Telekom, T-Mobile’s majority stockholder and a leading integrated telecommunications company, since January 2019. Since April 2015, he has served as Chief Human Resources Officer and Member of the Management board of Deutsche Telekom. Dr. Illek has also served as Chairman of Supervisory Board for T-Systems International GmbH since November 2016 (a subsidiary of Deutsche Telekom). Prior to that, he was Chairman of Management Board at Microsoft Germany from September 2012 to March 2015. From April 2010 to September 2012, he was Director of Marketing at Telekom Deutschland GmbH. In this position, he was responsible for all marketing activities for both consumers and business customers in Germany. He was also in charge of the Wholesale Center and the Value-Added Services Center, as well as international product development for Deutsche Telekom's fixed-network, IPTV, convergent and business customer portfolio. Before joining Deutsche Telekom, Dr. Illek held various managerial positions at Bain & Company and at Dell, in both Germany and in Switzerland.

Dr. Illek studied chemistry and business administration in Düsseldorf and Munich, beginning his career at the University of Munich in 1989.

Question 5

Raphael Kübler

Accepted Answer

Raphael Kübler has served as a director of T-Mobile since April 30, 2013, and is a member of the Compensation Committee and Executive Committee of T-Mobile’s Board of Directors. In January 2014, Mr. Kübler assumed the position of Senior Vice President of the Corporate Operating Office of Deutsche Telekom, T-Mobile’s majority stockholder and a leading integrated telecommunications company, and reports directly to the Chief Executive Officer of Deutsche Telekom. From July 2009 to December 2013, Mr. Kübler served as a Senior Vice President Group Controlling at Deutsche Telekom. In this position, he was responsible for the financial planning, analysis, and steering of the overall Deutsche Telekom Group as well as the financial management of central headquarters and shared services. From November 2003 to June 2009, Mr. Kübler served as Chief Financial Officer of T-Mobile Deutschland GmbH, the mobile operations of Deutsche Telekom in Germany now known as Telekom Deutschland GmbH (a wholly owned subsidiary of Deutsche Telekom). Raphael also currently serves on the board of directors of Ströer SE & Co. KGaA and he has previously served on the board of directors of Hellenic Telecommunications Organization (OTE) from 2013 to 2018.

Raphael studied Business Administration at H.E.C. in Paris and the Universities of Bonn and Cologne. He holds a doctoral degree from the University of Cologne.

Question 6

Letitia A. Long

Accepted Answer

Letitia A. Long has served as a director of T-Mobile since June 2021, and is a member of the Nominating and Corporate Governance Committee of T-Mobile's Board of Directors. Ms. Long currently serves as the Rector of the Virginia Tech Board of Visitors and the Chair of the Board of the Intelligence & National Security Alliance. Ms. Long currently serves on the board of directors of Parsons Corporation, Corporate Office Properties Trust, and certain private companies. She previously served on the board of directors of Urthecast Corporation from 2015-2018, the board of directors of Raytheon Company from 2015-2020, and the board of directors of Sonatype from 2017-2019. Additionally, she was the Deputy Director of Naval Intelligence for the Department of Defense from 2000-2003, the Deputy Undersecretary of Defense Intelligence (Planning, Policy & Resources) from 2003-2006, the Deputy Director of the Defense Intelligence Agency from 2006-2010, and the Director of the National Geospatial-Intelligence Agency from 2010-2014.

Ms. Long received her Bachelor of Science in Electrical Engineering from Virginia Polytechnic Institute and State University and her Master of Science in Engineering from The Catholic University of America.

Question 7

Thorsten Langheim

Accepted Answer

Thorsten Langheim has served as a director of T-Mobile since April 30, 2013 and is a member of the CEO Selection Committee, Executive Committee and the chair of the Transaction Committee of T-Mobile’s Board of Directors. Mr. Langheim joined the board of management of Deutsche Telekom, T-Mobile’s majority stockholder and a leading integrated telecommunications company, on January 1, 2019, where he is responsible for the “USA and Group Development” Board department, overseeing Deutsche Telekom’s U.S. business as well as corporate development, portfolio strategy, and group M&A activities. This includes overseeing Deutsche Telekom’s 12% stake in BT Group as well as the management of Deutsche Telekom’s subsidiaries T-Mobile Netherlands and Deutsche Funkturm. In addition, Mr. Langheim also serves as the Chairman and Co-founder of Deutsche Telekom Capital Partners, where he is responsible for the venture capital and private equity activities of Deutsche Telekom.

Prior to that, from 2009 to December 2018, he first served as Senior Vice President of Corporate Development and then as Executive Vice President Group Development at Deutsche Telekom. Prior to his roles at Deutsche Telekom, Mr. Langheim was Managing Director at the Private Equity Group of The Blackstone Group, an asset management and financial services company, from May 2004 to June 2009, primarily focusing on private equity investments in Germany. Before that, Mr. Langheim was Investment Banker and Vice President of European M&A at J.P. Morgan in London and Assistant Director at WestLB in Düsseldorf between 1995 and 2004.

Mr. Langheim is a member of the Supervisory Board of Deutsche Sporthilfe as well as Chairman of T-Mobile Netherlands and Deutsche Funkturm.

Mr. Langheim holds a Master of Science degree in International Securities, Investment, and Banking from the ISMA Centre for Education and Research at the University of Reading (United Kingdom) and a Bachelor’s degree (Hons) in European Finance and Accounting from the University of Bremen (Germany) and Leeds Business School (United Kingdom).

Question 8

Dominique Leroy

Accepted Answer

Dominique Leroy has served as a director of T-Mobile since November 2020, and is a member of the Nominating and Corporate Governance Committee of T-Mobile’s Board of Directors. Since November 2020, Ms. Leroy has served as a member of the Board of Management of Deutsche Telekom AG. Ms. Leroy has over 30 years of experience in the consumer goods and telecommunication sector. She started her career at Unilever where her last position was Managing Director for Belgium and Luxembourg. In 2011, she joined Proximus (formerly Belgacom) where she quickly became Head of the Consumer Market and held the position of CEO from 2014 to 2019. During this time, she managed to turn around the company with a continuous growth phase and a strong customer experience focus. From November 2019 to November 2020, she served as an independent advisor at Bain & Company. Ms. Leroy currently serves as a director at Compagnie de Saint Gobain and Hellenic Telecommunications Organization (“OTE”). In addition, she has more than 10 years of Board experience, having been a Board Member at Royal Ahold Delhaize, Lotus Bakeries, Proximus, and BICS.

She holds a Master’s degree in Industrial Engineering and Management from the Solvay Business School in Brussels.

Question 9

Mike Sievert

Accepted Answer

Mike Sievert is president and chief executive officer of T-Mobile and is a member of T-Mobile’s Board of Directors. Mike leads a customer-crazed team of disruptors and innovators, working tirelessly over the last seven years to change the rules of wireless, resulting in T-Mobile becoming the fastest-growing company in its space.

He most recently served as president and chief operating officer of T-Mobile. As president and chief executive officer, Mike is responsible for leading T-Mobile into the 5G future as it joins forces with Sprint to supercharge the successful Un-carrier strategy. His focus will center around unlocking the potential of the combined companies’ increased scale, which is expected to result in over $43 billion in synergies, create lower costs, and offer the ability to deliver better services at lower prices for consumers. A centerpiece of that focus will be the transformational nationwide 5G network that the T-Mobile team is building. It will deliver massive increases in network capacity, drive innovation, and enable consumers to get both a better value and a better network. Mike and his team will continue to cultivate T-Mobile’s culture that is world-famous for putting customers first, treating them right, and changing the rules in their favor—with the goal of creating the most loved brand in the history of the telecom industry.

Mike has been actively involved in all of T-Mobile’s significant corporate decisions since he joined T-Mobile in 2012 as chief marketing officer and since he became COO in 2015. In 2018, he joined the board of directors and was appointed president of the company. Prior to being CMO at T-Mobile, Mike joined Clearwire Corporation, now part of T-Mobile, in 2009, serving as EVP and chief commercial officer. Mike has been instrumental in building T-Mobile’s purpose-driven strategy to address customer pain points, an approach that has been the foundation for T-Mobile’s unprecedented growth over the past seven years. He worked alongside prior CEO John Legere since 2012, transforming T-Mobile into the enormously successful Un-carrier. He also worked very closely with John Legere in directing the approval and integration efforts for the merger with Sprint, to create the new T-Mobile. In addition, Mike has been extensively involved in shaping T-Mobile’s internal customer-obsessed Un-carrier culture and is building on a company culture that encourages communication, diversity, opportunity, collaboration, and transparency—all of which are vital to T-Mobile remaining a disruptive force in the wireless industry.

Mike also serves on the board of directors of Shaw Communications in Canada. Prior to joining the Un-carrier, Mike had a nearly 25-year career in marketing, technology, and entrepreneurship. Over the years, he has served in various roles, including EVP and chief sales and marketing officer at E*TRADE, EVP and chief marketing officer at AT&T Wireless, and corporate vice president of the Windows Business Group at Microsoft.

He started his career in marketing at Procter & Gamble and IBM. He’s an avid aviator and mariner, and an enthusiastic supporter of conservation and the environment—especially in his adopted home of the Pacific Northwest. He’s a proud husband and father to two boys in their 20s. Mike owes his success to daily doses of a perfectly crafted dark roast French press, the source of all his earthly power.

Question 10

Teresa A. Taylor

Accepted Answer

Teresa A. Taylor has served as a director of T-Mobile since April 30, 2013 and has been T-Mobile’s lead independent director since May 1, 2013. Ms. Taylor is also a member and chair of the Nominating and Corporate Governance Committee of T-Mobile’s Board of Directors, and is also a member of the Audit Committee and CEO Selection of T-Mobile’s Board of Directors. Ms. Taylor was the chair of T-Mobile’s Compensation Committee from May 1, 2013 to June 12, 2018. Since April 2011, Ms. Taylor has served as Chief Executive Officer of Blue Valley Advisors, LLC, an advisory firm. Ms. Taylor served as Chief Operating Officer of Qwest Communications, Inc., a telecommunications carrier, from August 2009 to April 2011. She served as Qwest’s Executive Vice President, Business Markets Group, from January 2008 to April 2009 and served as their Executive Vice President and Chief Administrative Officer from December 2005 to January 2008. Teresa served in various positions with Qwest and the former US West beginning in 1987. During her 24-year tenure with Qwest and US West, she held various leadership positions and was responsible for strategic planning and execution, sales, marketing, product, network, information technology, human resources, and corporate communications. Ms. Taylor also is a director of Black Hills Corporation and NiSource, Inc, and was previously a director of First Interstate BancSystem, Inc., where she served as chair of the compensation committee.

Teresa received a Bachelor of Science degree from the University of Wisconsin-LaCrosse.

Question 11

Omar Tazi

Accepted Answer

Omar Tazi has served as a director of T-Mobile since November 2020. Mr. Tazi is currently Senior Vice President at Deutsche Telekom AG in charge of Group Innovation, Products, Design & Customer Experience, as well as Global Partnerships and Devices. Prior to joining Deutsche Telekom in January 2018, he founded several fintech, e-commerce, and big data ventures focusing on Middle East and Africa markets. Previously, from February 2010 to January 2014, Mr. Tazi was with Orange Maroc as Executive Vice President in charge of various areas, including consumer marketing, information systems & customer experience. Prior to that, he was Oracle's chief evangelist where he was in charge of building and scaling developer communities and promoting Oracle platforms globally. Before that, he also served as CEO of Orbeon, a Silicon Valley-based company specializing in middleware for form-based applications.

Mr. Tazi has also held several other senior management positions in Silicon Valley including at Symantec and WebGain (later acquired by Oracle). He has held several research and teaching positions at the Swiss Federal Institute of Technology (ETH - EPFL), in the fields of Artificial Intelligence (AI) and Computer Science.

He is a Stanford Graduate School of Business alumnus and holds a Master of Science degree in Computer Science & Electrical Engineering from Polytech Montpellier.

Question 12

Kelvin R. Westbrook

Accepted Answer

Kelvin R. Westbrook has served as a director of T-Mobile since April 30, 2013, is the chair of the Compensation Committee of T-Mobile's Board of Directors, and is a member of the Transaction Committee of T-Mobile's Board of Directors. Mr. Westbrook was the chair of T-Mobile’s Nominating and Corporate Governance Committee from May 1, 2013 to June 12, 2018.

Mr. Westbrook is President and Chief Executive Officer of KRW Advisors, LLC, a consulting and advisory firm, a position he has held since October 2007. Mr. Westbrook also served as Chairman and Chief Strategic Officer of Millennium Digital Media Systems, L.L.C. ("MDM"), a broadband services company that later changed its name to Broadstripe LLC, from September 2006 until October 2007. Mr. Westbrook was also President and Chief Executive Officer of MDM from May 1997 until October 2006. Broadstripe LLC (formerly MDM) and certain of its affiliates filed voluntary petitions for reorganization under Chapter 11 of the U.S. Bankruptcy Code in January 2009, approximately 15 months after Mr. Westbrook resigned. He also currently serves on the boards of directors of Archer Daniels Midland Company, Camden Property Trust, and The Mosaic Company. He has previously served on the board of directors of Stifel Financial Corp. from 2007 to 2018.

Mr. Westbrook holds an undergraduate degree in Business Administration from the University of Washington and a Juris Doctor degree from Harvard Law School.

Question 13

Bavan Holloway

Accepted Answer

Bavan M. Holloway has served as a director of T-Mobile since June 2021, and is a member of the Audit Committee of T-Mobile’s Board of Directors. Ms. Holloway served as the Vice President, Corporate Audit for The Boeing Company from 2010 until her retirement in April 2020, where she was responsible for all corporate audit activities, including the review of internal control systems and overall process assessments ensuring effectiveness. Prior to that, she served in a variety of senior finance roles after joining Boeing in 2002, including Director of Finance, 777 Program; Director of Finance and Chief Financial Officer, Material Management; Director, Financial Planning and Analysis; and Assistant Corporate Controller and Chief Accountant. Prior to joining Boeing, Ms. Holloway was a partner at KPMG, LLP from 1998 to 2002 and held other roles at KPMG before becoming partner, primarily serving investment services, broker dealer and financial clients. Ms. Holloway is a certified public accountant.

Ms. Holloway holds a Bachelor’s degree in Business Administration from the University of Tulsa and a Master’s degree in Financial Markets and Trading from the Illinois Institute of Technology.

Meet T-Mobile's executives.

Mike Sievert

N éstor Cano

Marcus East

Ulf Ewaldsson

Peter A. Ewens

Callie Field

Jon Freier

Janice V. Kapner

Mike Katz

Brian King

Deeanne King

Susan Loosmore

Mark Nelson

Peter Osvaldik

Neville R. Ray

Abdul Saad

John Saw