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On April 21, 2025, the Company issued a press release announcing that Srdjan Serge Tanjga has been appointed Chief Financial Officer of the Company, effective May 27, 2025. Mr. Tanjga, age 46, previously served as Interim Chief Financial Officer at MongoDB Inc. from February 2025. Prior to that, he served as Senior Vice President, Finance at MongoDB from February 2021 and as Vice President of Finance and Business Operations from May 2019 to February 2021. Mr. Tanjga holds a B.A. and an MBA from Harvard University.

Mark Dorsey has served as our Chief Revenue Officer since October 2024. Prior to joining Appian, Mr. Dorsey was the Senior Vice President of Sales for the Americas at Alteryx from October 2023. Prior to Alteryx, Mr. Dorsey held two senior sales positions at Oracle from 2016 to 2023, including holding the position of Senior Vice President of Cloud Sales from 2019 through October 2023. Prior to Oracle, Mr. Dorsey worked as Executive Vice President, General Manager, and Head of Sales Small Business at Bank of America Merchant Services from 2015 to 2016. Mr. Dorsey holds a B.S. in Interdisciplinary Studies from Boston University and an M.B.A. from Boston College.

Matthew Calkins is a Founder of Appian and has served as our Chief Executive Officer, President, and as Chairman of our Board of Directors since August 1999. He also served as a director of MicroStrategy, Inc., a publicly held provider of enterprise software platforms, from November 2004 to April 2014. Mr. Calkins holds a B.A. in Economics from Dartmouth College.

Pavel Zamudio-Ramirez has served as our Chief Customer Officer since January 2021 and prior to that was Senior Vice President for Customer Success beginning in March 2020. From January 2018 to March 2020, he was an entrepreneur serving organizations in the integration of strategy, innovation, and collaboration practices. From 2012 to December 2017, Mr. Zamudio-Ramirez was Executive Vice President of Innovation and Transformation Services at Salesforce, a software company providing customer relationship management services. Mr. Zamudio-Ramirez previously worked at the Monitor Group, a global strategy consulting company, for 16 years where he was a senior partner responsible for the West Coast business unit. Mr. Zamudio-Ramirez holds two M.A. degrees in Engineering and Management from the Massachusetts Institute of Technology.

Robert C. Kramer is a Founder of Appian and has served as our General Manager since January 2013 and as a member of our Board of Directors since 2008. Mr. Kramer served as our Chief Financial Officer from our founding to October 2008 and as our Vice President, Technology from October 2008 to December 2012. Mr. Kramer holds a B.S. in Economics from the Wharton School of the University of Pennsylvania.

Barbara Bobbie Kilberg has served as a member of our Board of Directors since January 2017. Ms. Kilberg is President and CEO Emeritus of the NVTC. Ms. Kilberg held the position of President and CEO of NVTC from 1998 to 2020. She currently serves as Strategic Advisor to NVTC, as well as on the Board of Advisors to Acentra Health. Ms. Kilberg holds a B.A. in Political Science from Vassar College, an M.A. in Political Science from Columbia University, and a J.D. from Yale University.

Shirley A. Edwards has served as a member of our Board of Directors since January 2023. From 2002 to 2022, Ms. Edwards was a partner at EY (formerly Ernst & Young LLP), most recently serving as Global Client Service Partner from 2017 to 2022. Ms. Edwards serves on the Board of Directors of Solventum Corp. (NYSE: SOLV), Baker Hughes Company (Nasdaq: BKR) and the Virginia Tech Foundation, and has also served as a board member for Girls Scouts of the Nation's Capital and Leadership Greater Washington, the Pamplin College of Business Advisory Council for Virginia Tech, and the National Capital Region Advisory Board for the American Red Cross. Ms. Edwards holds a B.S. in Accounting from Virginia Tech and is a licensed CPA.

Carl Boe Hartman II has served as a member of our Board of Directors since October 2024. Mr. Hartman is the Co-Founder and CTO - Engineering of Nomi Health, Inc., a healthcare company that he co-founded in 2020. From 2015 to 2020, he was at Goldman Sachs, most recently serving as Partner and Managing Director, Head of Digital Strategy Integration from 2019 to 2020. Mr. Hartman also serves on the Board of Valkyrie Andromeda Corporation, Inc., the Board of Rational Exponent, and the Advisory Board of Violet.AI. Mr. Hartman holds a B.A. in International Political Science from West Virginia University and a Master's Certificate in Project Management from George Washington University.

Mark Lynch has served as a member of our Board of Directors since June 2022 and as our Interim Chief Financial Officer from November 2024 to May 2025. Prior to that, he served as our Chief Financial Officer from October 2008 to March 2022. Mr. Lynch holds a B.S. in Accounting from Pennsylvania State University and an M.B.A. in Finance from George Washington University.

Michael Beckley is a Founder of Appian and has served as our Chief Technology Officer since 2007 and as a member of our Board of Directors since November 2024. Mr. Beckley serves on the Board of the Northern Virginia Technology Council (the NVTC), one of the largest technology councils in the nation, and on the Board of Advisors of the Center for a New American Security. Mr. Beckley holds a B.A. in Government from Dartmouth College.

Mr. David Link, M.B.A., is the Co-Founder and CEO of ScienceLogic, a global leader in AI-driven IT operations, unifying service-centric observability with intelligent automation. Throughout his career, he has worked to solve complex operational challenges facing IT organizations by delivering smarter and more targeted IT management and automation tools and leveraging market transitions in AI, cloud, and advanced analytics. With a focus on customer success, his proven leadership integrating technology, product, and business model shifts has been instrumental to ScienceLogic's continuous growth. Mr. Link is an expert at scaling enterprise software platforms and applying AI and automation to complex globally distributed systems. Prior to founding ScienceLogic in 2003, Mr. Link served as Senior Vice President at Interliant, Inc., and held senior roles at IBM, where he led the development of Internet commerce software products. He currently serves on the Board of Directors for the Northern Virginia Technology Council and was named an EY Entrepreneur of the Year award winner for the Mid-Atlantic region. Mr. Link holds a Bachelor of Science from Denison University and holds over 12 technology patents in the IT management field.