Retired President and Chief Executive Officer Proto Labs, Inc. (online and technology-enabled quick-turn manufacturer), served from 2014 to March 2021; also served as Director from 2014 May 2021. Director of Piper Sandler Companies since 2019. Director of A. O. Smith Corp. since April 2021. Victoria Holt joined Proto Labs, Inc. as President, Chief Executive Officer and a Director in 2014, retiring in 2021. With manufacturing facilities in five countries, Proto Labs is a leading e-commerce technology enabled digital manufacturer of custom prototypes and on-demand product parts. Ms. Holt began her career at Monsanto Company, where she held various assignments of increasing responsibility before moving to Solutia, Inc., a divestiture of the Monsanto Company s chemical business, as Vice President and General Manager Performance Films. Ms. Holt later held various roles with PPG Industries, Inc., a leading coatings and specialty products company, including Senior Vice President of Glass and Fiber Glass. Ms. Holt then served as President and Chief Executive Officer of Spartech Corporation, a leading provider of plastic sheet, compounds and packaging products, until its sale to PolyOne in 2013. Ms. Holt has a diverse international business background serving a wide spectrum of customers looking for sustainable solutions across diverse end markets including plastics, materials, automotive, medical, aerospace, consumer and general industrial. Ms. Holt brings passion and extensive experience in the areas of sustainable innovation, environmental solutions, plastics operations and management and recycling to the Board. Ms. Holt s proven success leading large global companies across a broad range of manufacturing, chemical and materials industries has demonstrated her deep understanding of risk management, operations, strategic planning and performance measurement. Ms. Holt provides tremendous insight into the areas of continuous improvement, use of data analytics, e-commerce, digitally connected operations and execution of our technology-led, sustainability-linked strategy to grow our business and mitigate climate risks. Ms. Holt has developed expertise in corporate governance through her service, including holding committee leadership roles, on the public company boards listed above as well as private company boards, and she shares this expertise with the Company s Board in her position as Chair of the Nominating and Governance Committee. Ms. Holt holds a bachelor s degree in chemistry from Duke University and a master s degree in business administration from Pace University. Ms. Holt has completed the National Association of Corporate Directors (NACD) Cyber Risk Oversight Program and earned the CERT Certificate in Cybersecurity Oversight.