T-Mobile US TMUS

Mr. Sievert has served as our Vice Chairman and Vice Chairman of the Board since 2025. Mr. Sievert served as our President and Chief Executive Officer from April 2020 to November 2025, our Chief Operating Officer from February 2015 to June 2018 and our President and Chief Operating Officer from June 2018 to April 2020. From April 2013 to February 2015, he served as our Executive Vice President and Chief Marketing Officer, and from November 2012 to April 2013, Mr. Sievert was Executive Vice President and Chief Marketing Officer of T-Mobile USA. Prior to joining T-Mobile USA, Mr. Sievert was an entrepreneur and investor involved with several Seattle-area start-up companies. From April 2009 to June 2011, he was Chief Commercial Officer at Clearwire Corporation, a broadband communications provider, responsible for all customer-facing operations. From February 2008 to January 2009, Mr. Sievert was co-founder and Chief Executive Officer of Switchbox Labs, Inc., a consumer technologies developer, leading up to its sale to Lenovo. He also served from January 2005 to February 2008 as Corporate Vice President of the worldwide Windows group at Microsoft Corporation, responsible for global product management and P&L performance for that unit. Prior to Microsoft, he served as Executive Vice President and Chief Marketing Officer at AT&T Wireless for three years. He also served as Chief Sales and Marketing Officer at E*TRADE Financial and began his career with management positions at Procter & Gamble and IBM. He has served on the boards of Rogers Wireless Communications in Canada, Switch & Data Corporation, and a number of technology start-ups. Mr. Sievert holds a Bachelor's degree in Economics from the Wharton School at the University of Pennsylvania.

Mr. Gopalan currently serves as President and Chief Executive Officer since 2025. Previously he served as our Chief Operating Officer since March 2025, bringing extensive experience in technology, telecommunications and business operations, and a proven track record of operational excellence, digital transformation and customer-centric strategies. From August 2022 to February 2025, he served as a member of the Company's Board of Directors. From October 2020 to February 2025, he served as the Managing Director of Telekom Deutschland GmbH. There, he doubled the company's growth rate, scaled fiber to connect millions of homes, and achieved record mobile market share. From January 2017 to October 2020, he served as a member of the Board of Management of Deutsche Telekom, responsible for the Europe segment. Prior to Deutsche Telekom, Mr. Gopalan held top roles at Bharti Airtel, Capital One, and Vodafone, where he spearheaded growth strategies that positioned those businesses as leaders in highly competitive industries, including using data and digital strategies to provide impactful solutions for consumers. Mr. Gopalan studied business administration at St. Stephen's College in New Delhi and earned his Master of Business Administration at Indian Institute of Management in Ahmedabad, India.

Mr. Freier serves as our Chief Operating Officer, leading the company's core mobility businesses across the commercial marketing, digital, branded and national retail, customer care, direct sales, enterprise operating services, and supply chain and procurement functions. Prior to that, from May 2021 to December 2025, he served as our President, Consumer Group, leading consumer-facing brands and operations for both postpaid and prepaid customer segments. Mr. Freier has over 25 years of experience in the telecommunications industry. Starting on the frontline with Western Wireless, T-Mobile's predecessor company, Mr. Freier launched his wireless career in Lubbock, Texas in 1994 when the company had fewer than 75,000 total customers. With a concentration in rural, unserved markets throughout the Western United States, Western Wireless created VoiceStream in 1996, spun off VoiceStream in 1999, and then became T-Mobile in 2001. Mr. Freier holds a Bachelor of Science in organizational management from Lubbock Christian University and a Master of Science in organizational leadership from Colorado State University.

Mr. Nelson serves as our Chief Legal Officer and General Counsel. He oversees the Company's legal and government affairs. Prior to joining T-Mobile, Mr. Nelson practiced law for more than 25 years at Cleary Gottlieb Steen & Hamilton LLP, where he worked on a broad range of complex matters involving mergers and antitrust counseling, civil and criminal litigation, and regulatory proceedings before federal and state government agencies. Mr. Nelson has earned distinction as one of the nation's leading antitrust lawyers and litigators from numerous publications, including Chambers, American Lawyer, Benchmark Litigation, and Legal 500. Mr. Nelson received a Bachelor of Science degree from Cornell University and a Juris Doctor from Harvard Law School.

Mr. Osvaldik serves as our Chief Financial Officer, and is responsible for leading the financial function of the Company. From June 2016 to June 2020, he served as our Chief Accounting Officer and Senior Vice President of Finance. From January 2016 to June 2016, Mr. Osvaldik served as our Vice President, External Reporting & Technical Accounting. Prior to joining T-Mobile, from May 2014 to December 2015, he served as Chief Accounting Officer at Outerwall Inc. (formerly Coinstar, Inc.), a provider of automated retail solutions, including movie and video game rental kiosks as well as coin cashing machines. From November 2010 to May 2014, he served in various capacities at Outerwall Inc. including as Corporate Controller and as Controller, Coinstar LOB. Prior to that, Mr. Osvaldik was a Senior Manager at PricewaterhouseCoopers LLP, a national public accounting firm. Mr. Osvaldik holds Bachelor's degrees in Accounting and Biochemistry from Western Washington University. On September 3, 2026, T-Mobile US, Inc. (T-Mobile or the Company) announced that Peter Osvaldik, Chief Financial Officer of the Company, would retire from his role as Chief Financial Officer in February 2027.

Ms. Long currently is the Chair of the Board of the Intelligence & National Security Alliance. Ms. Long previously served on the Virginia Tech Board of Visitors from 2017-2025, the board of directors of Urthecast Corporation from 2015 to 2018, the board of directors of Raytheon Company from 2015 to 2020, and the board of directors of Sonatype from 2017 to 2019. Additionally, she was the Deputy Director of Naval Intelligence for the Department of Defense from 2000 to 2003, the Deputy Undersecretary of Defense Intelligence (Planning, Policy & Resources) from 2003 to 2006, the Deputy Director of the Defense Intelligence Agency from 2006 to 2010, and the Director of the National Geospatial-Intelligence Agency from 2010 to 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.

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 its Executive Vice President and Chief Administrative Officer from December 2005 to January 2008. Ms. Taylor 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 holds a Bachelor of Science degree from the University of Wisconsin-LaCrosse.

Mr. Kavanaugh has been the chief financial officer of International Business Machines Corporation (IBM) since January 2018, overseeing accounting and controllership, financial planning and analysis, tax, internal audit, investor relations, corporate strategy, corporate development and treasury of the company's worldwide financial operations. Prior to that, he was senior vice president, Transformation & Operations, where he was responsible for redesigning IBM's operating model to align with fundamental market shifts and driving new ways of working while incorporating speed and agility throughout the enterprise. In his current role as the CFO at IBM, Mr. Kavanaugh continues to oversee Transformation & Operations, including the Chief Information Office, as well as the company's Global Chief Data Office, Enterprise Operations & Services and Real Estate Operations. Mr. Kavanaugh first joined IBM in 1996 from AT&T Corporation, where he was the chief financial officer, Americas Global Services. He earned his Master of Business Administration degree from The Ohio State University.

Mr. Claure is a global entrepreneur and investor. He is a Partner and Co-Chairman of Brightstar Capital Partners, a multi-billion investment firm focused on deploying AI to transform businesses since May 2025. He is also the founder CEO of Claure Group, a multi-billion-dollar global investment firm spanning multiple high growth sectors, including AI & technology, energy transition, fashion and entertainment, and sports. Through his investment firm, Claure Group, Mr. Claure provides strategic capital and expertise to many of his portfolio companies' and funds' management teams, including SHEIN, the fastest growing on-demand fashion company globally, where he is Group Vice Chairman; Bicycle Capital, Latin America's leading growth equity fund; Open Opportunity Fund, a fund supporting Black and Hispanic tech founders in the U.S.; and eB Capital, a Brazil-focused investment platform. Additionally, Mr. Claure is the Co-Chair of Digital Data Design (D^3) Institute at Harvard Business School, an organization which focuses on shaping the future of business and society through digital and AI-driven business initiatives. Mr. Claure served as the Chief Executive Officer of SoftBank International and the Chief Operating Officer of SoftBank from May 2018 until January 2022. 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. 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. Mr. Claure was Executive Chairman of Sprint prior to the Sprint Combination and served on the Sprint board of directors. 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. Mr. Claure received a B.S. in Economics and Finance and an honorary Doctorate of Commercial Science from Bentley University. He also received an honorary Doctorate of Laws from Babson College. He is also an Executive Fellow at Harvard Business School.

Mr. Dannenfeldt currently serves on the Board of Directors of Nokia Oyj (Nokia), one of the leading European telecommunications infrastructure providers. He is the Chairman of the Personnel Committee and Audit Committee of the Board of Directors of Nokia. He previously served as the Chairman of the Supervisory Board of Ceconomy AG, the largest European consumer electronic retailer, from 2021 to July 2025. Mr. Dannenfeldt previously served as the Chief Financial Officer of Deutsche Telekom, from January 2014 to December 2018. Prior to that, he was Finance Director of Telekom Deutschland from April 2010 to December 2013. Mr. Dannenfeldt started his career at Deutsche Telekom in 1992 and has more than 20 years of experience in various leadership roles in sales, marketing and finance in the national and international mobile and fixed line telecommunications business. He also served on the Board of Directors of Virgin Mobile in the UK in 2003 and 2004, as well as the Chairman of the Board of Directors of EE Limited in 2014 and 2015. He holds a Master's degree in Mathematical Economics from the University of Trier, Germany.

Mr. Almeida serves as our Chief Broadband, Enterprise and Emerging Business Officer, and is responsible for broadband (including 5G Home Internet and T-Fiber), T-Ads, financial services, and T-Mobile for Business. Prior to that, he served on our Board from June 2023 to September 2025, serving on the Compensation, Transaction, and Nominating and Corporate Governance Committees-experiences that gave him deep insight into the Un-carrier's strategy and culture. Before joining T-Mobile's leadership team, Mr. Almeida was Deutsche Telekom's head of investment and portfolio management. Prior to that, he was Deutsche Telekom's European head of Consumer and B2B telecom, overseeing 10 countries before becoming interim CEO of its European segment. Also at Deutsche Telekom, Mr. Almeida led Consumer and Fiber for the German business. In addition, he served on the executive boards of NOS SGPS and ZON Multimedia and began his career at Portugal Telecom, where he advanced to leadership roles. Mr. Almeida earned a bachelor's degree in industrial management engineering from Instituto Superior Tecnico in Lisbon and a Master of Business Administration from INSEAD (Institut Europeen d'Administration des Affaires). Andre Almeida, currently the Company's Chief Broadband, Enterprise and Emerging Business Officer, will transition to the role of Chief Marketing, Brand, and Broadband Officer effective October 14, 2026.

Since January 2014, Mr. Hottges has served as the Chief Executive Officer of Deutsche Telekom, our significant stockholder and a leading integrated telecommunications company. From March 2009 to December 2013, he served as Deutsche Telekom's Chief Financial Officer 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. Hottges headed European operations as a member of the Board of Management of T-Mobile International. Mr. Hottges studied Business Administration at the University of Cologne.

Mr. Saw serves as our Chief Technology Officer. He leads a team that drives the Company's network innovation and evolution across architecture, engineering, operations and the Company's technology labs. He also founded the AI-RAN Innovation Center, advancing standards for RAN intelligence and performance in collaboration with Ericsson, Nokia and NVIDIA. Before joining T-Mobile in 2020, Mr. Saw was chief technology officer at Sprint, where he spearheaded the company's 5G rollout and transformed the 2.5 GHz band into one of the most valuable spectrum assets in wireless. He previously had senior leadership roles at AT&T, Clearwire, Netro Corp., Nortel and Bell Northern Research. Mr. Saw earned bachelor's, master's and doctorate degrees in electrical engineering from McMaster University in Canada. He is a fellow of the Canadian Academy of Engineering, has six patents in wireless technologies, and has served on the FCC's broadband deployment advisory committee. He also advises the University of Washington's College of Engineering and serves on the board of directors for CTIA, a trade association representing the U.S. wireless communications industry.

Ms. King serves as our Chief People Officer. Ms. King is responsible for leading the human resources function that supports our employees across the country. Over the past 30+ years, Ms. King has held a wide variety of executive positions across nearly all functions at Sprint, including, most recently, the role of Chief Human Resources Officer and Chief Diversity Officer. Ms. King held that position from August 2018 to April 2020, encompassing leadership of all human resources operations and diversity and inclusion programs. From August 2017 to August 2018, she served as Senior Vice President, Omni-Channel Operations, Customer Experience and Fraud Operations. Prior to that, from October 2014 through August 2017 she served as Vice President, Omni-Channel Operations and Customer Experience. Ms. King received a Bachelor of Business Administration in Computer Information Systems degree from Baylor University in 1989, and completed the Strategic Business Leadership Series program from Georgetown University in 2007 and the Executive Leadership Program in 2012 from Duke University.

In January 2014, Mr. Kubler assumed the position of Senior Vice President of the Corporate Operating Office of Deutsche Telekom, our significant stockholder and a leading integrated telecommunications company, and he reports directly to the Chief Executive Officer of Deutsche Telekom. From July 2009 to December 2013, Mr. Kubler served as 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. Kubler 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). Mr. Kubler 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.

Mr. Langheim joined the Board of Management of Deutsche Telekom, our significant 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 subsidiary 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 European M&A at J.P. Morgan in London and Assistant Director at WestLB in Dusseldorf between 1995 and 2004. Mr. Langheim is a member of the Supervisory Board of Deutsche Sporthilfe and FC Bayern Munchen AG as well as Chairman of 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).

Since January 2019, Dr. Illek serves as the Chief Financial Officer of Deutsche Telekom, our significant stockholder and a leading European telecommunications company. Since April 2015, he has served as a Member of the Management Board of Deutsche Telekom: First as Chief Human Resources Officer (April 2015 to December 2018), then as Chief Financial Officer (January 2019 onwards). Dr. Illek currently serves as Chairman of the Supervisory Board of Telekom Deutschland. From January 2019 to February 2024, he served as Chairman of the Supervisory Board of Deutsche Telekom Services Europe. Furthermore, he served as Chairman of the Supervisory Board of T-Systems International from November 2016 to June 2021. Dr. Illek was Chairman of the Management Board of Microsoft Germany from September 2012 to March 2015. From April 2010 to September 2012, he was Director of Marketing at Telekom Deutschland. In this position, he was responsible for all marketing activities for both consumers and business customers in Germany. He also was in charge of the Wholesale Center, the Value-Added Services Center, and international product development for Deutsche Telekom's fixed network, IP TV, and business customer portfolio. Before joining Deutsche Telekom, Dr. Illek held various managerial positions at Bain and at Dell, both in Germany and Switzerland. Dr. Illek studied Chemistry and Business Administration in Dusseldorf and Munich.

Ms. Leroy has served as a member of the Board of Management of Deutsche Telekom since November 2020. Prior to that, from November 2019 to November 2020, she served as an independent advisor at Bain & Company. In 2011, she joined Proximus (formerly Belgacom) where she quickly became Head of the Consumer Market and held the position of CEO from January 2014 to September 2019. As the CEO of Proximus, she managed to turn around the company with a continuous growth phase and a strong customer experience focus. Ms. Leroy started her career at Unilever where her last position was Managing Director for Belgium and Luxembourg. Ms. Leroy currently serves as a director at Compagnie de Saint Gobain and Hellenic Telecommunications Organization (OTE). She has also been a Board Member at Royal Ahold Delhaize, Lotus Bakeries, Proximus, and BICS. Ms. Leroy holds a Master's degree in Commercial Engineering and Management from the Solvay Business School in Brussels.

On April 8, 2025, the company appointed Daniel J. Drobac as Vice President and Chief Accounting Officer (CAO) of the Company, effective as of May 1, 2025. Mr. Drobac, age 49, has served as Vice President, Accounting and Controller at the Company since August 2017. Prior to that he served as a Practice Fellow at the Financial Accounting Standards Board from 2015 to 2017 and served in various leadership roles at PricewaterhouseCoopers LLP from 2000 to 2015. Mr. Drobac received Bachelor's and Master's degrees in Accounting from the University of Wisconsin-Madison.