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Matthew J. Hawkins, Work Experience: Mr. Hawkins has served as our Chief Executive Officer and as a member of our Board since October 2017. Prior to joining us, he was President of Sunquest Information Systems, a developer of medical laboratory and diagnostic software, from May 2014 to October 2017. Mr. Hawkins was previously an operational leader with Vista Equity Partners, a private equity firm, where he served as President and board member of Greenway Health, a vendor of health information technology, Chief Executive Officer and board member of Vitera Healthcare Solutions, a provider of electronic health records, preventative maintenance systems, and financial and clinical transaction processing, and Chief Executive Officer and board member of SirsiDynix, a library software automation company. From 2004 to 2007, Mr. Hawkins was Vice President and General Manager of Henry Schein Practice Solutions, a global health care distribution company. Matt received an MBA from Harvard Business School and a Bachelor's Degree with University Honors from Brigham Young University. Other Boards: LeanTaaS (since 2023), Cambia (since 2024), Avetta (since 2025).

Christopher L. Schremser, 54, has served as our Chief Technology Officer since November 2017. Prior to joining us, Mr. Schremser was at ZirMed, which is now a part of Waystar, where he served as Chief Technology Officer from 2002 to 2017 and as Infrastructure Manager from 2000 to 2002.

T. Craig Bridge, 54, has served as our Chief Transformation Officer since October 2019. Prior to being named to this role, Mr. Bridge served as Chief Operating and Integration Officer from February 2018 to October 2019. Prior to co-founding Navicure, which is now known as Waystar, in January 2001, Mr. Bridge was at S2 Systems, a global provider of integrated solutions for banking and financial markets, where he oversaw Project Management and Quality Assurance Groups from 2000 to 2001. Mr. Bridge was previously at NDCHealth's Provider Healthcare Transaction Group, a provider of healthcare information software solutions, where he served in various positions from 1994 to 2000.

Steven M. Oreskovich, 54, has served as our Chief Financial Officer since June 2018. Prior to joining us, Mr. Oreskovich was at Merge Healthcare, a subsidiary of IBM through acquisition in 2015 and a software provider of medical image handling and processing, interoperability, and clinical systems, where he held various progressive financial roles, including Corporate Controller, Vice President, Internal Audit, Chief Accounting Officer, and Chief Financial Officer and Treasurer, from 2004 to 2017. Mr. Oreskovich also previously served in various financial roles at Truis, Inc. and at PricewaterhouseCoopers LLP, an accounting firm.

Priscilla Hung, Work Experience: Ms. Hung served in various roles at Guidewire Software, Inc. from 2005 to 2025, including President and Chief Operating Officer, Chief Administrative Officer, Senior Vice President of Corporate Development, Vice President of Operations, and Vice President of Corporate Development. Prior to joining Guidewire, Ms. Hung held several management positions at SAP Ariba, a software and information technology services company, Sun Microsystems, Inc., a manufacturer of computer workstations, servers, and software, and Oracle Corporation, a database and enterprise management company. Other Boards: Current: Veeva Systems Inc.; Ethos Technologies, Inc.; Xerox Holdings Corporation; Cast and Crew LLCPrevious: Vonage Holdings Corp. (2019-2022).

Heidi G. Miller, Work Experience: Ms. Miller has served as a member of our Board since 2021. Prior to retiring in 2012, she was President of JPMorgan International, a division of JPMorgan Chase & Co., from 2010 to 2012. Previously, she served as Chief Executive Officer of JPMorgan Chase's Treasury and Security Services from 2004 to 2010. Earlier, Ms. Miller was Executive Vice President and Chief Financial Officer for Bank One Corporation from 2002 to 2004, Chief Financial Officer for Citigroup from 1998 to 2001, and Chief Financial Officer for the Travelers Group from 1995 to 1998. Ms. Miller graduated from Princeton University with a bachelor's degree in history and completed her doctorate in history at Yale University in 1979.Other Boards: Previous: Fiserv (2019-2025); HSBC Holdings PLC (2014-2021); General Mills Inc. (1999-2019); Progressive Corp. (2011-2014).

Mr. Michael F. Roman, Work Experience: Mr. Roman served as Executive Chairman of the Board of 3M Company, a global manufacturing and technology company, from May 2024 to March 2025. He was Chairman of the Board, President, and Chief Executive Officer of 3M from May 2019 to April 2024 and Chief Executive Officer from July 2018 to May 2019. Prior to that, Mr. Roman held several senior leadership roles at 3M, including Chief Operating Officer and Executive Vice President from July 2017 to June 2018, Executive Vice President of the Industrial Business Group from June 2014 to July 2017, Senior Vice President of Business Development from May 2013 to June 2014, and Vice President and General Manager of the Industrial Adhesives and Tapes Division from September 2011 to May 2013. He joined 3M in 1988 and served in a variety of roles during his tenure. Other Boards: Current: Abbott Laboratories (since April 2021).

Ms. Aashima Gupta, Work Experience: Ms. Gupta leads AI strategy and solutions for the healthcare industry at Google Cloud, where she drives digital transformation initiatives and leverages advanced models such as Gemini. She joined Google Cloud in November 2016 and assumed her current role in November 2018. Previously, she served as Vice President of Digital Transformation - Healthcare at Apigee and as Executive Director of Digital Health at Kaiser Permanente. Ms. Gupta holds two patents in computer applications (20100287458, 20090299784) and has been recognized as one of the Most Influential Women in Healthcare IT by HIMSS and among the Top 10 Executives to Watch by Modern Healthcare. She earned a B.S. in Computer Science from Delhi University and a Master's in Computer Applications from IMT Ghaziabad, India. Other Boards: Current: Neogen Corporation (since 2022)Additional Roles: Board of Directors, Molnlycke Healthcare (private); Board of Advisors, HIMSS (non-profit).

Kim Wittman, 47, has served as our Chief People Officer since March 2024. Prior to joining Waystar, Ms. Wittman served as Senior Vice President of People and Culture of Vivint, Inc., a smart home and security company, from 2022 until 2024. Prior to being named Senior Vice President, Ms. Wittman served in various roles at Vivint after joining Vivint in 2013, including Vice President of Talent Acquisition, HR Business Partner for Technology and Corporate, Senior Director of Human Resources, Director of Human Resources for Technology and Corporate, Manager of Talent Acquisition for Technology and Corporate, and Senior Campus Recruiter. Prior to joining Vivint, Ms. Wittman held various positions at TEKsystems Inc., an IT services management company, Limited Brands, Inc., a retail company, Macy's Inc., a department store company, and The Buckle, Inc., a fashion retail company.

Ethan Waxman, Work Experience: Mr. Waxman has served as a member of our Board since June 2024. He is a Partner at EQT, where he has worked since 2015. Mr. Waxman currently serves on the board of Zeus Industrial Products, Inc., a supplier of custom components to the medical device industry, since 2024, and previously served on the board of Certara, Inc., a leading provider of software and scientific consulting services, from August 2020 to December 2022. Mr. Waxman earned an A.B. in History from Harvard College. Other Boards: Current: Zeus Industrial Products, Inc. (since 2024)Previous: Certara (2020-2022).

William Chan, 56, has served as Chief Product and AI Officer at Waystar since October 2025, following Waystar's acquisition of Iodine Software. He was previously Iodine's CEO, and co-founder from 2010 to 2025. Prior to Iodine, Mr. Chan was co-founder and Vice President of Products at Crimson from 2004 to 2008, a company focused on improving healthcare provider quality and profitability. Crimson was acquired by The Advisory Board Company (now Optum Insights) in 2008, and Mr. Chan continued serving in product leadership roles. Mr. Chan was also the co-founder and Vice President of Marketing at WhisperWire, which was acquired by Concentrix, a telecommunications software vendor. Mr. Chan has a bachelor's degree in Computer Science from Cornell University and an MBA with honors from Harvard Business School. He holds multiple patents related to healthcare technology. Mr. Chan is on the Board of Directors of American Mission Hospital in Bahrain, and also serves as an advisor to Revival Health, a healthcare technology startup.

Ms. Lauren Young, Work Experience: Ms. Young is a Managing Director of Advent International, L.P. (Advent), a global private equity firm, where she focuses on investments in the technology sector. She joined Advent in 2011. Prior to Advent, Ms. Young was a member of the U.S. buyout fund at The Carlyle Group, concentrating on software and financial technology investments. She also served as an analyst at McColl Partners from 2004 to 2006. Ms. Young holds a B.A. from Davidson College and an M.B.A. from Harvard Business School.Other Boards: Current: Definitive Healthcare Corp. Previous: CCC Intelligent Solutions Holdings Inc.

Greg Packer, 46, has served as our Chief Legal Officer and Secretary since March 2025. Prior to joining Waystar, Mr. Packer served as Senior Vice President & Chief Legal Officer of Ancestry, a family history and consumer genomics company, from March 2023 until March 2025. Prior to being named as Chief Legal Officer at Ancestry, Mr. Packer held various roles at Ancestry beginning in April 2020 when he joined the company, including the roles of General Counsel and VP, Corporate & Securities. Prior to joining Ancestry, Mr. Packer held multiple other General Counsel positions, including at Lonestar Resources US Inc., and Howard Energy Partners LLC. Prior to Mr. Packer's General Counsel roles, he practiced corporate & securities law at Latham & Watkins LLP, advising public and private companies as well as private equity sponsors on a wide range of transactions and governance matters.

Melissa F. (Missy) Miller, 41, has served as our Chief Marketing Officer since January 2023. Prior to being named Chief Marketing Officer, Ms. Miller served as our Senior Vice President of Marketing from December 2021 to February 2023 and as our Vice President of Commercialization from August 2020 to December 2021. Prior to joining us, Ms. Miller served as Chief Growth Officer and Chief Marketing Officer at Chameleon Collective, a hybrid consulting and marketing services firm, from 2018 to 2020. Ms. Miller was previously Owner of Frances and Company, a provider of go-to-market consulting for marketing, commercial, and client success functions, from 2018 to 2020, and has served in various roles at ZirMed, which is now a part of Waystar, from 2015 to 2018 and at McKesson Provider Technologies, which provides healthcare distribution and technology services, from 2008 to 2015.