KATHRYN A. WALKER - Corporate Board Profile

ADTRAN Holdings, Inc.

Filing Date	Source Excerpt
2017-04-03	Ms. Walker currently serves as a director of ADTRAN and is a member of our Audit, Compensation and Nominating and Corporate Governance Committees. The table below sets forth information regarding compensation paid to our non-employee directors for 2016. Kathryn A. Walker: $164,991.
2018-04-04	Ms. Walker currently serves as a member of our Compensation and Nominating and Corporate Governance Committees. Ms. Walker is 58. The table below sets forth information regarding compensation paid to our non-employee directors (including our director emeritus) for 2017. Kathryn A. Walker total compensation $184,997.
2019-04-03	Ms. Walker currently serves as a director of ADTRAN and is a member of our Compensation and Nominating and Corporate Governance Committees. Ms. Walker is 59.
2020-04-02	KATHRYN A. WALKER, age 60, has more than 30 years of experience in the communications industry. Since 2009, she has served as a managing director for OpenAir Equity Partners, a venture capital firm focusing on the wireless, communications and mobile Internet sectors. In addition, Ms. Walker is serving concurrently as Chief Technology Officer at Main Street Data, an agriculture data science company founded by OpenAir Equity Partners. Prior to joining OpenAir Equity Partners, Ms. Walker worked in a variety of roles at various subsidiaries of Sprint Corporation from 1985 to 2009, culminating in the position of Chief Information and Chief Network Officer at Sprint Nextel Corporation. She currently serves on the Council of Trustees at South Dakota State University, as the President of the Board of Trustees at Missouri University of Science and Technology, and as a member of the board of directors of the Heartland Chapter of the National Association of Corporate Directors ("NACD"). Ms. Walker is an NACD Board Leadership Fellow. The NACD Fellowship is a comprehensive and continuous program of study that empowers directors with the latest insights, intelligence and leading boardroom practices. Ms. Walker demonstrates a commitment to the highest standards of exemplary board leadership by earning NACD Fellowship The Gold Standard Director Credential year after year. Ms. Walker has been a member of our Board since May 2014. Ms. Walker has been selected as a nominee for director because she has extensive experience with the technologies that influence our industry and our markets. She also possesses governance expertise and management experience, particularly managing technical personnel. 2019 Director Compensation: Kathryn A. Walker, Fees Earned or Paid in Cash: $96,250, Stock Awards: $90,553, Total: $186,803.
2021-03-30	KATHRYN A. WALKER, age 61, has more than 30 years of experience in the communications industry. Ms. Walker has been a member of our Board since May 2014.
2022-03-29	KATHRYN A. WALKER, age 62, has more than 30 years of experience in the communications industry. Since 2009, she has served as a managing director for OpenAir Equity Partners, a venture capital firm focusing on the wireless, communications and mobile Internet sectors. In addition, Ms. Walker is serving concurrently as Chief Technology Officer at Main Street Data, an agriculture data science company founded by OpenAir Equity Partners. Prior to joining OpenAir Equity Partners, Ms. Walker worked in a variety of roles at various subsidiaries of Sprint Corporation from 1985 to 2009, culminating in the position of Chief Information and Chief Network Officer at Sprint Nextel Corporation. She currently serves on the board of directors for SmartHome Ventures, on the Council of Trustees at South Dakota State University, and as the President of the Board of Trustees at Missouri University of Science and Technology. Ms. Walker is an National Association of Corporate Directors ("NACD") Board Leadership Fellow. The NACD Fellowship is a comprehensive and continuous program of study that empowers directors with the latest insights, intelligence and leading boardroom practices, and Ms. Walker demonstrates a commitment to the highest standards of exemplary board leadership by earning NACD Fellowship 6 The Gold Standard Director Credential 6 year after year. Ms. Walker also was elected to the NACD Directorship 100 in 2021 in recognition of her corporate governance expertise. Ms. Walker has been a member of our Board since May 2014. Ms. Walker has been selected as a nominee for director because she has extensive experience with the technologies that influence our industry and our markets. She also possesses governance expertise and management experience, particularly managing technical personnel. 2021 Director Compensation: Kathryn A. Walker Fees Earned or Paid in Cash: $97,500 Stock Awards: $90,019 Total: $187,519.
2023-03-28	Kathryn A. Walker 98,438 90,004 — 188,442
2024-03-27	Kathryn A. Walker, age 64, has more than 30 years of experience in the communications industry. She has been a member of our Board since May 2014. She serves as Chair of the ESG Committee and on the Nominating and Corporate Governance Committee. Director compensation for 2023 was $224,252.
2025-03-31	Kathryn Walker has more than 30 years of experience in the communications industry. Since 2009, she has served as a managing director for OpenAir Equity Partners, a venture capital firm focusing on the wireless, communications and mobile internet sectors. Ms. Walker also served as the Chief Technology Officer of Main Street Data, an agriculture data science company founded by OpenAir Equity Partners, from 2020 to 2024. Prior to joining OpenAir Equity Partners, Ms. Walker worked in a variety of roles at various subsidiaries of Sprint Corporation from 1985 to 2009, culminating in the position of Chief Information and Chief Network Officer at Sprint Nextel Corporation. She currently serves on the Board of Governors and Council of Trustees of South Dakota State University Foundation, on the Board of Trustees of Missouri S&T, and as the Chair of the Kummer Missouri S&T Foundation. Ms. Walker is a National Association of Corporate Directors (“NACD”) Board Leadership member. Ms. Walker also was elected to the NACD Directorship 100 in 2021 in recognition of her corporate governance expertise.