Mayville Engineering Company, Inc.

Information About Our Executive Officers

The following table sets forth certain information as of February 1, 2026, regarding our executive officers:

Jagadeesh A. Reddy joined our company as President, Chief Executive Officer and as a member of the Board of Directors in July 2022. Before joining our company, Mr. Reddy was a member of the senior leadership team at W.R. Grace where he was responsible for the Strategy and Growth function as well as Managing Director of Advanced Refining Technologies LLC (ART), Grace’s global joint venture with Chevron. Mr. Reddy previously served as Vice President and General Manager, Water Technologies Strategic Business Unit, and Vice President, Corporate Strategy at Pentair PLC. Prior to Pentair PLC, he held strategy and business leadership roles at ITT Corporation, and its spin-off, Xylem Inc, spent time in M&A roles with United Technologies Corp, product management roles with Danaher Corporation and started his career in manufacturing operations at Denso Corporation. Mr. Reddy earned a Master of Business Administration in Finance and Strategy from the Kellogg School of Management and a Master’s in Engineering Management from the McCormick School of Engineering, both at Northwestern University. He also holds a Master’s in Industrial Engineering from the University of Tennessee, and a Bachelor’s in Mechanical Engineering from a university in India.

Rachele M. Lehrhas served as our Chief Financial Officer since April 2025 and joined our company in March 2023 as Chief Human Resources Officer. Prior to joining our company, Ms. Lehr spent nearly 15 years at Briggs & Stratton where she held senior finance and corporate roles of increasing scope and complexity, including Senior Vice President of Human Resources and Administration, Director of Human Resources and Controller for a $600 million international business. Prior to joining Briggs & Stratton, Ms. Lehr served as Sales Controller for Bar-S Foods (A Sigma Company) and started her career at PricewaterhouseCoopers LLP, a public accounting firm. Ms. Lehr earned a Bachelor of Science in Business Administration with a Major in Accounting from Marquette University and is a certified public accountant (currently inactive).

Ryan F. Raber joined our company in 2009 and has served as our Executive Vice President, Strategy, Sales & Marketing since June 2019. Prior to serving in his current position, Mr. Raber served as our Executive Vice President, Sales & Marketing beginning in November 2018 and as our Vice President of Sales & Marketing beginning in August 2013. Mr. Raber earned a Masters of Business Administration from the University of Wisconsin-Madison and a Bachelor of Science in Mechanical Engineering from Purdue University.

Sean P. Leuba joined our company in January 2023 as Senior Vice President, Corporate Development and General Counsel. Before joining our company, Mr. Leuba was the Head of Corporate Development for Caterpillar Inc. Previously, Mr. Leuba served in multiple progressively senior roles, including as General Manager, Caterpillar Electric Power Division and General Manager, Caterpillar Remanufactured Products Division. Prior to joining Caterpillar, Mr. Leuba practiced law with Arnold & Porter in its Washington, D.C. office focusing on corporate, securities, mergers & acquisitions and venture capital. Mr. Leuba earned a Master of Business Administration in Finance from the University of Chicago, a Juris Doctor from the Washington and Lee University School of Law, and a Bachelor of Arts from the University of Maryland Baltimore County.

Craig D. Nichols joined our company in March 2025 as Senior Vice President, Operations and Supply Chain. Prior to joining our Company, Mr. Nichols served as Vice President of Drive System Operations at Dana Incorporated. Previously, Mr. Nichols held multiple progressively senior roles, including Senior Director of Operations, Senior Director of Off Highway Global Manufacturing Strategy and Senior Director of Global Aftermarket Distribution Operations. Prior to joining Dana Incorporated, Mr. Nichols served as Senior Vice President of Global Manufacturing at Jason Industries and started his career with Hi-lex Corporation. Mr. Nichols earned a Bachelors Degree in Business Management from Davenport University.