Y 10-K Fiscal year ended Dec. 31, 2014

Director Qualifications: Ms. DeVore brings extensive healthcare industry, CEO and executive leadership experience to the Board gained through her past President and CEO positions at a healthcare improvement company that serves thousands of hospitals and other healthcare providers. She also gained technology experience in connection with her oversight of the healthcare improvement company’s technology/services segment and regulatory experience due to its highly-regulated nature. In addition, Ms. DeVore has finance experience as a former partner and region and sector leader at Ernst & Young LLP. Professional and Other Experience: • Premier, Inc., a healthcare improvement company, various roles from 2003 until June 2021, with the most recent as CEO (2019-2021) and President (2013-2019) • Premier Healthcare Solutions, Inc. (subsidiary of Premier, Inc.), President and CEO (2009-2019) and Director (2009-2021) • AdventHealth, a healthcare system, Director (since 2020) • Cap Gemini/Ernst & Young LLP, a management consulting company, various roles from 1988 until 2002, including VP and Sector Leader, Manufacturing/High Tech & Media/Entertainment Units (2001-2002) and Sector Leader, High Growth Middle Market Division, North America (2000-2001) Other Public Board Service: • Solventum Corporation, a healthcare company, Director (since 2024) • Unum Group, a financial protection benefits company, Director (since 2018) • Premier, Inc., Director (2013-2021)

Director Qualifications: Mr. Schneider brings significant CEO, COO, finance, marketing and consumer insights and technology experience to the Board from his current CEO position at a real estate services company. In addition, Mr. Schneider has finance experience through his past leadership positions at a financial services organization. These positions also provided him with regulatory and public policy experience through his oversight of compliance with consumer and safety regulations, and due to the highly-regulated nature of the banking industry. He also gained insurance industry experience as a consultant for multiple insurance companies while at McKinsey & Company. Mr. Schneider qualifies as an “audit committee financial expert” under the rules of the SEC. Professional and Other Experience: • Anywhere Real Estate Inc. (formerly known as Realogy Holdings Corp.) (“Anywhere Real Estate”), a residential real estate services company, CEO and President (since December 2017), President and Chief Operating Officer (October-December 2017) • McKinsey & Company, an international consulting firm, Senior Advisor (2017) • Capital One Financial Corporation, a financial services company, various positions (2001-2017), including Senior Advisor (2016-2017) and President, Card Business (2007-2016) • Capital One Bank (USA) N.A., Director (2007-2016) Other Public Board Service: • Anywhere Real Estate, Director (since 2017)

Director Qualifications: Mr. Dixon has extensive technology experience through his position as Global Chief Information Officer of a large public company, his ownership of a digital and information technology consulting business, and his service on the CIO advisory board for another large public company. He also has significant marketing and consumer insights experience through his senior positions at two large public companies, both of which have global retail consumer product focus. Mr. Dixon has Environmental, Social and Governance experience through his role as chair of the governance committee of a public company and his several executive and academic board positions. Professional and Other Experience: • RD Factor, Inc., a digital and information technology consulting business, Owner (since 2016) • PepsiCo, Inc., a food and beverages company, Senior Vice President (2016) and Senior Vice President and Global Chief Information Officer (2007-2016) • Procter & Gamble, various positions (1977-2007), including Vice President of Global Business Services (2005-2007) • International Business Machines Corporation, a technology and consulting company, CIO Advisory Board (2011-2017) • Georgia Institute of Technology, the College of Computing Advisory Board (since 2019), Trustee Emeritus of the Foundation (since 2017) and President’s Advisory Board (2017-2024) Other Public Board Service: • Build-A-Bear Workshop, Inc., a specialty retailer, Director (since 2018) • Okta, Inc., an identity management platform, Director (since 2019)

We are asking our shareholders to elect Susan D. DeVore, Bahija Jallal and Ryan M. Schneider to the Board, each for a three-year term to expire at our 2028 Annual Meeting. Elizabeth E. Tallett will continue to serve as a director through the date of the Annual Meeting, but she is not eligible for re-election due to our mandatory retirement age policy. The Board thanks Ms. Tallett for her contributions and service to the Board and the Company. The Board has appointed Ramiro Peru as the incoming independent Chair of the Board beginning on the date of the 2025 Annual Meeting. Each of the nominees for director is presently a director, and each has consented to being named as a nominee in this Proxy Statement and has indicated a willingness to serve if elected. As more fully described in the following pages, we believe each nominee is qualified with unique skills, experiences and attributes that are beneficial to our Company. The Board currently consists of eleven directors. This classified Board structure is one of the specific requirements imposed by the BCBSA in license agreements with all Blue Cross Blue Shield licensees, including us. In compliance with our Amended and Restated Articles of Incorporation (our “Articles of Incorporation”), we divide our directors into three classes with each class containing approximately one-third of the total number of directors. Our Articles of Incorporation also provide that we will declassify the Board if the BCBSA requirement for a classified board is no longer applicable to us. Currently, the classes of 2025 and 2026 each have four directors, while the class of 2027 has three directors. One class's term expires each year. Generally, each director serves until the Annual Meeting of Shareholders held in the year that is three years after their election, continuing until their successor is elected and qualified. A director nominee is not eligible for election if they are 73 years old as of the March 1st before the Annual Meeting of Shareholders when their nomination is considered.

Director Qualifications: Mr. Hay brings extensive CEO, finance and regulatory and public policy experience to the Board through his positions as CEO, Chairman and CFO of a large utility company which was subject to significant regulation and oversight. He also has Environmental, Social and Governance experience from his management of the utility’s expansion of renewable energy sources. In addition, Mr. Hay has marketing and consumer insights experience from his service as an officer of a large utility company and a director of a financial services company, and technology experience from his service as a director of an information technology company. Mr. Hay qualifies as an “audit committee financial expert.” Professional and Other Experience: • Clayton, Dubilier & Rice, LLC, a private equity investment firm, operating advisor (since 2014) • NextEra Energy, Inc. (“NextEra Energy”), an electricity-related services and renewable energy generator company, Executive Chairman (2012-2013), CEO (2001-2012), Chairman (2002-2012) and President (2001-2006) • Artera Services, LLC, a provider of integrated infrastructure services to natural gas and electric industries, Director (since 2018, including for its predecessor company, PowerTeam Services, LLC) Other Public Board Service: • L3Harris Technologies, Inc., a global aerospace and defense technology firm, Director (since 2019 and 2002-2019 for its predecessor company, Harris Corporation) • Capital One Financial Corporation, a financial services company, Director (2003-2019) • NextEra Energy, Director (2001-2013)

Director Qualifications: Mr. Clark has extensive CEO, healthcare industry, marketing and consumer insights, and finance experience through his positions as Chairman and CEO of a major healthcare services organization, and as a senior executive at an international consumer products company, where he served in several positions involving marketing, advertising and product development of healthcare and other consumer products. Also, he has healthcare experience through his service on a hospital’s board of directors and Environmental, Social and Governance experience through his roles as lead director and chair of the governance committee of a public company. Mr. Clark qualifies as an “audit committee financial expert.” Professional and Other Experience: • Cardinal Health, Inc., a healthcare products and services company, Chairman and CEO (2007-2009) and President and CEO (2006-2007) • The Procter & Gamble Company (“Procter & Gamble”), a consumer products company, various positions (1974-2006) including Vice Chairman, Global Health, Baby & Family Care (2004-2006) and Vice Chairman & President, Global Market Development (2002-2004) • The Christ Hospital in Cincinnati, Ohio, Director (since 2009) Other Public Board Service: • Textron, Inc., an aircraft, defense and industrial products company, Director (since 2003) • General Mills, Inc., a consumer food products company, Director (2009-2024) • Avnet, Inc., an industrial distributor of electronic components, enterprise computer and storage products, Director (2012-2019)

Director Qualifications: Ms. Boudreaux brings significant CEO, healthcare industry, insurance, finance and technology experience to the Board from her chief executive and other executive positions with several healthcare and insurance organizations and participation in numerous associations in the healthcare industry. Ms. Boudreaux’s positions also provided her with regulatory and public policy experience due to the highly-regulated nature of these organizations. She also gained financial and technology experience through her service as a director and as a member of the audit committee and technology operations committee of several public companies, including a medical device company and a biotechnology company. In addition, she has gained Environmental, Social and Governance experience through her current CEO role. Professional and Other Experience: • Elevance Health, Inc., President and CEO (since 2017) • GKB Global Health, LLC, a healthcare consulting firm, Founder and CEO (2015-2017) • UnitedHealth Group Incorporated, a diversified healthcare company, Executive Vice President (2008-2015), and President (2008-2011) and CEO (2011-2014) of its subsidiary, UnitedHealthcare • Health Care Service Corporation, a health insurance company, Executive Vice President of External Operations (2005-2008) and President of Blue Cross and Blue Shield of Illinois (2002-2005) • Aetna Inc., a managed healthcare company, various leadership positions (1983-2002) • Director of the BCBSA, the National Institute for Health Care Management and the Central Indiana Corporate Partnership, member of The Business Roundtable and chair of the Business Council Other Public Board Service: • Target Corporation, a general merchandise retailer, Director (since 2021) • Zimmer Biomet Holdings, Inc., a medical device company, Director (2012-2021) • Novavax, Inc., a biotechnology company, Director (2015-2017) • Xcel Energy, Inc., a utility holding company, Director (2012-2017)

We are asking our shareholders to elect Susan D. DeVore, Bahija Jallal and Ryan M. Schneider to the Board, each for a three-year term to expire at our 2028 Annual Meeting. Elizabeth E. Tallett will continue to serve as a director through the date of the Annual Meeting, but she is not eligible for re-election due to our mandatory retirement age policy. The Board thanks Ms. Tallett for her contributions and service to the Board and the Company. The Board has appointed Ramiro Peru as the incoming independent Chair of the Board beginning on the date of the 2025 Annual Meeting. Each of the nominees for director is presently a director, and each has consented to being named as a nominee in this Proxy Statement and has indicated a willingness to serve if elected. As more fully described in the following pages, we believe each nominee is qualified with unique skills, experiences and attributes that are beneficial to our Company. The Board currently consists of eleven directors. This classified Board structure is one of the specific requirements imposed by the BCBSA in license agreements with all Blue Cross Blue Shield licensees, including us. In compliance with our Amended and Restated Articles of Incorporation (our “Articles of Incorporation”), we divide our directors into three classes with each class containing approximately one-third of the total number of directors. Our Articles of Incorporation also provide that we will declassify the Board if the BCBSA requirement for a classified board is no longer applicable to us. Currently, the classes of 2025 and 2026 each have four directors, while the class of 2027 has three directors. One class's term expires each year. Generally, each director serves until the Annual Meeting of Shareholders held in the year that is three years after their election, continuing until their successor is elected and qualified. A director nominee is not eligible for election if they are 73 years old as of the March 1st before the Annual Meeting of Shareholders when their nomination is considered.

Director Qualifications: Ms. Strable brings extensive executive leadership, insurance industry and regulatory experience to the Board, gained through her CEO and other executive positions with a global financial services company. She also has healthcare industry experience from her role as President of a financial services company that provides specialty health insurance products. In addition, Ms. Strable has significant finance and capital markets experience through her previous position as CFO of a public company, with oversight responsibility for financial reporting, capital markets and corporate finance. Ms. Strable qualifies as an “audit committee financial expert.” Professional and Other Experience: • Principal Financial Group, Inc. (“Principal Financial”), a financial services company, President and CEO (since January 2025) and Executive Vice President and CFO (2017-January 2025) • Principal Financial, President, U.S. Insurance Solutions (2015-2017) • Principal Financial, various other actuarial and management positions (1990-2017) • United Way Worldwide, Director (2018 - 2024) Other Public Board Service: • Principal Financial, Director (since January 2025)

Director Qualifications: Ms. Jallal brings extensive healthcare industry experience to the Board gained through her several leadership positions at biopharmaceutical companies that provide new medicines to patients, including her current position of CEO at a multinational biotechnology company. In addition, Ms. Jallal has CEO and finance experience through her current position and her former position of President at a biologic research and development subsidiary of a large public company. These positions also provided her with regulatory and public policy experience due to the highly-regulated nature of the biopharmaceutical and biotechnology industries. Professional and Other Experience: • Immunocore Holdings plc, a T-cell receptor biotechnology company, CEO (since 2019) • AstraZeneca PLC (“AstraZeneca”), a pharmaceutical and biopharmaceutical business, Executive Vice President (2013-2019) • MedImmune, a biotechnology business and a subsidiary of AstraZeneca, President (2013-2019), Executive Vice President, Research and Development (2010-2013) and various other research and development positions (2006-2010) Other Public Board Service: • Immunocore Holdings plc, Director (since 2019) • ArriVent BioPharma, Inc., a clinical-stage biopharmaceutical company (publicly traded beginning January 2024), Director (2022-2024) • Guardant Health, Inc., a precision oncology company, Director (2019-2022)

Director Qualifications: Mr. Neri brings CEO and significant technology experience to the Board gained through his current position of President and CEO at a large, multinational enterprise information technology company and from holding several leadership positions at firms that provide technology solutions to the business and public sectors. Mr. Neri also gained finance and marketing and consumer insights experience from past positions where he was responsible for determining consumer needs, overseeing product and promotional campaigns and promoting, selling and distributing products. Mr. Neri qualifies as an “audit committee financial expert.” Professional and Other Experience: • Hewlett Packard Enterprise Company (“Hewlett Packard Enterprise”), a technology company, President and CEO (since 2018), President (2017-2018) and Executive Vice President and General Manager, Enterprise Group (2015-2017) • HP Inc., a technology company, various positions (1995-2015), including Senior Vice President and General Manager, Enterprise Group (2014-2015), Senior Vice President and General Manager, HP Networking Business Units (2014), Senior Vice President and General Manager, HP Servers (2013-2014) and Senior Vice President and General Manager, HP Technology Services (2011-2013) Other Public Board Service: • Hewlett Packard Enterprise, Director (since 2018) • H3C Technologies Co., LTD, an information technology company, Director (2016-2017)