T-Mobile US Inc

NASDAQ:TMUS

Mr. G. Michael Sievert

President, CEO & Director

G. Michael "Mike" Sievert is the Chief Executive Officer (CEO) of T-Mobile US Inc. He succeeded John Legere as CEO in April 2020. Before becoming CEO, Sievert played a critical role as President and Chief Operating Officer, helping to lead T-Mobile's successful transformation and significant growth over several years. Sievert joined T-Mobile in 2012 as the Chief Marketing Officer and quickly became a pivotal part of the company's leadership team. In this role, he was instrumental in developing and executing the "Un-carrier" strategy, which helped T-Mobile differentiate itself in the competitive telecommunications market by focusing on customer-friendly policies and innovation. His career in the technology and consumer sectors is extensive, including leadership roles at companies such as Clearwire, a wireless broadband operator, and Microsoft, where he served as Corporate Vice President of Windows. Additionally, Sievert has experience in consumer-related roles at E*TRADE and AT&T Wireless Services. Sievert holds a Bachelor’s degree in economics from The Wharton School of the University of Pennsylvania. Known for his dynamic leadership style, Sievert continues to drive T-Mobile's mission to become the best in wireless by prioritizing customer experience and network expansion.

Mr. Peter Osvaldik

Executive VP & CFO

Peter Osvaldik is a prominent executive at T-Mobile US, Inc., serving as the company's Chief Financial Officer (CFO). He has played a crucial role in managing T-Mobile’s financial strategy and operations. Osvaldik joined T-Mobile in 2016 and initially served as the Senior Vice President of Finance and Chief Accounting Officer. Prior to his tenure at T-Mobile, he built significant experience in financial and operational leadership roles, which have been instrumental in his contributions to T-Mobile's financial planning, analysis, and strategic decision-making processes. His leadership has been a key factor in T-Mobile’s growth and fiscal health, helping to navigate the complexities of the telecommunications industry.

Mark W. Nelson is a significant figure at T-Mobile US Inc., serving as the Executive Vice President and General Counsel. In this role, he is responsible for the company's legal affairs, which include managing the legal team and working on complex legal and regulatory issues that affect the company. Mr. Nelson plays a crucial part in strategic decision-making processes and ensures that T-Mobile adheres to legal standards while pursuing its business goals. His background in law and extensive experience in the industry contribute significantly to T-Mobile's ongoing success and ability to navigate the regulatory landscape effectively.

Mr. Michael J. Katz

President of Marketing, Strategy & Products

Michael J. Katz is a notable executive at T-Mobile US Inc., where he has made significant contributions through various leadership roles. As the Executive Vice President of T-Mobile for Business, Katz is responsible for spearheading the company’s B2B strategy, operations, and sales. Under his leadership, T-Mobile for Business has focused on delivering innovative solutions and services tailored for business customers, helping them leverage T-Mobile's cutting-edge network capabilities. Katz joined T-Mobile in 2017, initially serving in roles that emphasized growth and strategy execution. Known for his dynamic leadership style, he has been instrumental in expanding T-Mobile’s business customer segment and driving significant revenue growth. His focus on customer-centric solutions and strategic partnerships has enabled T-Mobile to strengthen its footprint in the competitive telecom market. With a keen understanding of the telecommunications industry, Katz continues to contribute to T-Mobile's overarching goal of being the best in customer experience and network reliability.

Mr. Jonathan A. Freier

President of Consumer Group

Jonathan A. Freier serves as an executive at T-Mobile US Inc. He has held significant leadership positions within the company, bringing years of experience in the telecommunications industry. As an Executive Vice President, Freier has been instrumental in overseeing the growth and development of T-Mobile's Retail and Customer Care operations. He is known for his strategic acumen and deep understanding of customer experience, contributing significantly to T-Mobile's reputation for excellent customer service. Freier's leadership has been vital in driving T-Mobile's initiatives to expand its market presence and improve service quality, ensuring that customer needs are met efficiently and effectively.

Ms. Callie R. Field

President of T-Mobile Business Group

Callie R. Field is a prominent executive at T-Mobile US Inc., where she has made significant contributions in various leadership roles. As of recent information, she serves as the President of T-Mobile Business Group. In this capacity, she leads T-Mobile's efforts in expanding and enhancing its business services, focusing on delivering innovative solutions to enterprise and government customers. Field has been recognized for her strategic vision and customer-centric approach, driving initiatives that leverage T-Mobile's cutting-edge technology and network capabilities. Her leadership style emphasizes collaboration, and she is known for building strong teams that are aligned with the company's values and goals. Before taking on her current role, Field has held various important positions within T-Mobile. Her career at the company has been marked by a series of successes, including improving customer experiences and spearheading numerous strategic projects that have bolstered T-Mobile's reputation and market presence in the telecommunications sector. Field's background and experience reflect her deep understanding of the industry and her commitment to innovation, making her a key figure in T-Mobile's leadership team. Her work continues to contribute to T-Mobile's growth and success in the highly competitive telecom industry.

Ms. Dara A. Bazzano

Senior VP of Finance & Chief Accounting Officer

Dara A. Bazzano is a prominent financial executive who has held significant roles in various companies, including T-Mobile US Inc., where she serves as the Senior Vice President and Chief Accounting Officer. Bazzano brings with her a wealth of experience in accounting and financial management, having worked in key positions across different industries. Before joining T-Mobile, Bazzano held leadership roles at CoreLogic as Senior Vice President, Chief Accounting Officer, and North America Controller for Japan's leading advertising and public relations company, Dentsu Aegis Network. Her extensive background also includes serving as Vice President, Corporate Controller, and Chief Accounting Officer at The Gap, Inc. In her roles, she has been responsible for overseeing financial reporting, accounting policy, and ensuring the integrity and accuracy of the companies' financial operations. Bazzano is known for her strategic approach to financial management and her ability to adapt to evolving business environments. Her experience also extends to audit and advisory roles, having worked for PricewaterhouseCoopers LLP and KPMG LLP earlier in her career, where she gained valuable insights into accounting practices and regulatory requirements. Dara Bazzano is a Certified Public Accountant and holds a Bachelor's degree in Business Administration, Accounting, from California State University, Sacramento. She is recognized for her leadership skills, financial acumen, and ability to drive operational efficiencies within the organizations she serves.

John Saw, Ph.D., is a prominent figure in the telecommunications industry, best known for his leadership roles at T-Mobile US Inc. Dr. Saw joined T-Mobile as the Executive Vice President and Chief Technology Officer following T-Mobile's merger with Sprint in 2020. Before this, he was the Chief Technology Officer at Sprint, where he played a crucial role in advancing the company's network technology and infrastructure. Dr. Saw has been instrumental in the deployment and expansion of T-Mobile’s 5G network, leveraging his extensive experience to drive technological innovation within the company. His efforts have been pivotal in enhancing T-Mobile's network performance, ensuring the company remains at the forefront of the competitive telecommunications landscape. He holds a Ph.D. in Electrical Engineering from McMaster University in Canada, a testament to his technical expertise and commitment to innovation in his field. Dr. Saw's leadership is characterized by his strategic vision and dedication to delivering cutting-edge network solutions, making him a vital part of T-Mobile's executive team.

Janice V. Kapner is a well-regarded executive in the telecommunications industry, serving as the Executive Vice President and Chief Communications Officer at T-Mobile US, Inc. She plays a crucial role in shaping the company's communications strategy and enhancing its brand reputation. Kapner joined T-Mobile in 2012 and has been instrumental in various high-profile initiatives, including the company's "Un-carrier" marketing strategy, which set T-Mobile apart from traditional carriers. Her work involves overseeing all aspects of corporate communications, public relations, media and community relations, and internal communications. With a strong background in technology and communications, Janice Kapner brings extensive experience to her role, having held senior positions at other major companies, including Microsoft and Sega. Her leadership and strategic vision have contributed significantly to T-Mobile’s dynamic brand image and corporate culture.