John Stankey has led AT&T as CEO and President since July 2020. He was elected Chairman of the Board in February 2025.

With more than $125 billion in 2025 revenues, AT&T is one of the world’s largest companies in technology and telecom. Between 2021 and 2025, AT&T invested more than $150 billion in its wireless and wireline networks, including capital investments and acquisitions of wireless spectrum. It is consistently one of the top annual investors of capital in the United States.

John’s leadership is driving AT&T’s transformation as it focuses on being the best advanced connectivity company. For 150 years, beginning with the first phone call by AT&T’s founding innovator, Alexander Graham Bell, AT&T has connected people to greater possibility. That’s still true today, powered by world-class fiber and 5G networks.

AT&T is a global leader in communications serving more than 100 million U.S. subscribers across wireless and broadband, including nearly 2.5 million business customers of all sizes.

John joined AT&T in 1985 and has 40 years of accomplished leadership spanning nearly every area of AT&T’s business. He has served in a variety of roles, including Chief Operating Officer, CEO of WarnerMedia; CEO of AT&T Entertainment Group; Chief Strategy Officer; Chief Technology Officer; CEO of AT&T Operations; and CEO of AT&T Business Solutions.

He currently serves on AT&T’s board of directors.

John holds a B.B.A. in Finance from Loyola Marymount University and an M.B.A. from UCLA.

Director since 2014

Mr. Kennard is the Independent Lead Director of AT&T Inc. and has served in this capacity since February 2025. He served as Chairman of the Board of Directors of AT&T Inc. from January 2021 to February 2025. Mr. Kennard served as the United States Ambassador to the European Union from 2009 to 2013.  From 2001 to 2009, Mr. Kennard was Managing Director of The Carlyle Group (a global asset management firm) where he led investment in the telecommunications and media sectors.

Mr. Kennard served as Chairman of the U.S. Federal Communications Commission from 1997 to 2001. Before his appointment as FCC Chairman, he served as the FCC’s General Counsel from 1993 until 1997. Mr. Kennard joined the FCC from the law firm of Verner, Liipfert, Bernhard, McPherson and Hand (now DLA Piper) where he was a partner and member of the firm’s board of directors. Mr. Kennard is a co-founder of Astra Capital Management (a private equity firm) and has served on the board of trustees of Yale University since 2014. Mr. Kennard received his B.A. in communications from Stanford University and earned his law degree from Yale Law School.

Mr. Kennard brings expertise in the global telecommunications industry including knowledge of the complex regulatory and policy landscape for communications and an understanding of the technological and strategic shifts in the industry. He also has experience in international trade and global investment and marketing.

Committees: Governance and Policy Committee

Other Public Company Directorships: Ford Motor Company; MetLife, Inc.

Director Since 2025

Ms. Grier served as U.S. Chair and America’s Managing Partner (CEO) of Ernst & Young LLP (EY) (a global leader in professional services and one of the “Big Four” accounting firms) from 2018 to 2022. Ms. Grier began her career at EY in 1991 and held numerous leadership roles during her 30-year tenure, including Vice Chair and Central Region Managing Partner (2015-2018), Americas Vice Chair of Talent (2014), and SEC Audit Partner.

Ms. Grier is also a senior advisor to Permira Advisors (a global private equity firm) and a board member of several nonprofits, including the Peterson Institute for International Economics. Ms. Grier is a Certified Public Accountant and holds a B.A. in Accounting from Saint Mary’s College.

Ms. Grier has extensive expertise in audit quality, regulatory matters, financial reporting and oversight of large publicly traded companies. She also has vast experience in technology, including cybersecurity, corporate governance, international business and affairs, leadership development and talent strategy.

Committees: Human Resources Committee, Corporate Development and Finance Committee

Other Public Company Directorships: Booking Holdings Inc., CDW Corporation and Illinois Tool Works Inc.

Director since 2019

Mr. Luczo is a Senior Partner of Crosspoint Capital Partners, L.P. (a private equity investment firm focused on the cybersecurity and privacy sectors located in Menlo Park, California) and has served in this capacity since December 2025; he served as Managing Partner from February 2020 to December 2025. Mr. Luczo served as Chairman of the Board of Seagate Technology plc (a global provider of data storage technology and solutions in Fremont, California) from 2002 until July 2020 and as a member of Seagate’s board of directors until October 2021. Mr. Luczo joined Seagate’s predecessor company in 1993 as Senior Vice President of Corporate Development, joined its board of directors in 1998, and served as its Chief Executive Officer from 1998 to 2004 and from 2009 to 2017. Prior to joining Seagate, Mr. Luczo held various roles in investment banking. He holds an A.B. in economics from Stanford University and earned an M.B.A. from Stanford Graduate School of Business.

Mr. Luczo brings deep experience in technology, business development, strategic planning, and operations through his leadership at Seagate. He has significant experience in financial matters and executing strategic cost initiatives and transactions.

Committees: Audit Committee, Corporate Development and Finance Committee and Executive Committee

Director since March 2024

Ms. Mayer is Chief Executive Officer and Founder of Dazzle AI Inc. (a Palo Alto-based technology company focused on the consumer artificial intelligence space). Prior to founding Dazzle AI in September 2025, Ms. Mayer served as Chief Executive Officer of Sunshine Products, from 2018 until it was acquired by Dazzle AI in 2025.

A seasoned veteran of the technology industry, Ms. Mayer previously served as Chief Executive Officer, President, and a Director of Yahoo!, Inc. from 2012 to 2017. Prior to her time at Yahoo!, she was one of Google’s earliest employees and its first female engineer. During her 13-year tenure at Google from 1999 to 2012, she rose to Vice President of Search and User Experience, leading the search business for over a decade and overseeing the development of flagship products including Google Maps, Google News, and Gmail.

Beyond her corporate leadership, she serves on the Board of the San Franciso Ballet. Ms. Mayer holds a B.S. in Symbolic Systems and an M.S. in Computer Science from Stanford University, specializing in artificial intelligence for both degrees.

Ms. Mayer brings extensive expertise in technology and a deep understanding of the consumer Internet experience. She has senior leadership and human capital management experience through her CEO role at Yahoo!. As a long-tenured director of Walmart Inc., she brings valuable experience in the oversight of a large publicly traded retail and ecommerce business.

Committees: Audit Committee, Corporate Development and Finance Committee

Other Public Company Directorships: Hilton Worldwide Holdings Inc, Starbucks Corporation and Walmart, Inc.

Director since 2013

Mr. McCallister served as Chairman of Humana Inc. (a health care company in Louisville, Kentucky) from 2010 to 2013 and as a member of Humana’s board of directors beginning in 2000. He also served as Humana’s Chief Executive Officer from 2000 until his retirement in 2012. During Mr. McCallister’s tenure, he led Humana through significant expansion and growth, nearly quadrupling its annual revenues between 2000 and 2012, and led the company to become a FORTUNE 100 company. Mr. McCallister received his B.S. in accounting from Louisiana Tech University and earned his M.B.A. from Pepperdine University.

Mr. McCallister has extensive leadership experience in the oversight of a large, publicly traded company with a focus on strategic planning and organic growth in the evolving health care sector. He also has deep experience in the development of customer focused solutions.

Committees: Audit Committee and Human Resources Committee

Other Public Company Directorships: Zoetis Inc.

Director since 2013

Ms. Mooney served as Chairman and Chief Executive Officer of KeyCorp (a bank holding company in Cleveland, Ohio) from 2011 until her retirement in May 2020. She previously served as KeyCorp’s President and Chief Operating Officer from 2010 to 2011. Ms. Mooney joined KeyCorp in 2006 as a Vice Chair and head of Key Community Bank. Prior to joining KeyCorp, beginning in 2000 she served as Senior Executive Vice President at AmSouth Bancorporation (now Regions Financial Corporation), where she also became Chief Financial Officer in 2004. Ms. Mooney served as a director of the Federal Reserve Bank of Cleveland in 2016 and served three one-year terms representing the Fourth Federal Reserve District on the Federal Advisory Council from 2017 to 2019.

She received her B.A. in history from the University of Texas at Austin and earned her M.B.A. from Southern Methodist University.

Ms. Mooney brings executive leadership skills through the management of a large, publicly traded and highly regulated company, knowledge of business strategy, and more than 30 years of experience in the customer-focused financial services industry.

Committees: Executive Committee, Governance and Policy Committee and Human Resources Committee

Other Public Company Directorships: Ford Motor Company

Director since 2010

Mr. Rose served as Chairman of the Board and Chief Executive Officer of Burlington Northern Santa Fe, LLC (a freight rail system based in Fort Worth, Texas and a subsidiary of Berkshire Hathaway Inc., formerly known as Burlington Northern Santa Fe Corporation) from 2002 until his retirement in April 2019, having also served as BNSF’s President until 2010. Mr. Rose began his 26-year career with BNSF (then Burlington Northern Railroad Company) in 1993. During his tenure as CEO, Mr. Rose helped guide the acquisition of BNSF by Berkshire Hathaway in 2009. Before serving as Chairman, Mr. Rose held several leadership positions there and at its predecessors, including President and Chief Executive Officer from 2000 to 2002, President and Chief Operating Officer from 1999 to 2000, and Senior Vice President and Chief Operations Officer from 1997 to 1999.

Mr. Rose also served as Executive Chairman of BNSF Railway Company (a subsidiary of Burlington Northern Santa Fe, LLC) until his retirement in 2019, having served as Chairman and Chief Executive Officer from 2002 to 2013. He earned his B.S. in marketing from the University of Missouri.

Mr. Rose has extensive experience in the executive oversight of a large, complex and highly regulated organization with considerable knowledge of operations management and logistics. He brings experience overseeing long- term strategic planning and a unionized workforce.

Committees: Corporate Development and Finance Committee, Executive Committee and Governance and Policy Committee

Other Public Company Directorships: Fluor Corporation

Director since 2013

Ms. Taylor is President, Chief Executive Officer and a director of Oil States International, Inc. (a globally diversified manufacturing and energy services provider based in Houston, Texas) and has served in this capacity since 2007. She previously served as Oil States International, Inc.’s President and Chief Operating Officer from 2006 to 2007 and as its Senior Vice President-Chief Financial Officer from 2000 to 2006. Ms. Taylor was Chief Financial Officer of L.E. Simmons & Associates, Inc. from 1999 to 2000 and Vice President-Controller of Cliffs Drilling Company from 1992 to 1999, and prior to that, held various management positions with Ernst & Young LLP, a public accounting firm.

She served as a director of the Federal Reserve Bank of Dallas from 2020 to 2025 and as a director of the Federal Reserve Bank’s Houston Branch from 2018 to 2019. She received her B.B.A. in accounting from Texas A&M University and is a Certified Public Accountant.

Ms. Taylor brings executive leadership skills in the oversight of a large, publicly traded company, vast experience in finance and public accounting, and her experience in international business and affairs.

Committees: Audit Committee and Executive Committee

Other Public Company Directorships: Oil States International, Inc.

Director since June 2021

Mr. Ubiñas is Chairman of the Statue of Liberty - Ellis Island Foundation (a nonprofit organization that works to preserve the Statue of Liberty and Ellis Island) and has served in this capacity since January 2021; he previously served as Vice Chair from 2018 until 2021 and has served as a member of its board of directors since 2014. Mr. Ubiñas served as President of the Ford Foundation (an independent, global nonprofit grant- making organization based in New York, New York) from 2008 to 2013. From 2000 to 2007, he was Senior Partner with McKinsey & Company (a global management consulting firm based in New York, New York), where he led the firm’s west coast media practice working with companies in the technology, telecommunications, and media sectors. Mr. Ubiñas joined McKinsey & Company in 1989, holding various leadership positions prior to being named Senior Partner.

From 2013 to 2017, he served on the Advisory Committee on U.S. Competitiveness of the Export-Import Bank, and from 2010 to 2014, he served on the Advisory Committee for Trade Policy and Negotiations.

Mr. Ubiñas has extensive leadership experience and expertise across the broadband and wireless industries, government, and the nonprofit sector, all of which align with AT&T’s priorities to serve customers, investors, and our communities.

Committees: Governance and Policy Committee and Human Resources Committee

Other Public Company Directorships/Trusteeships: Electronic Arts Inc.; Mercer Funds; Tanger Factory Outlet Centers, Inc.