Mark Slicer

Mark Slicer is the chief financial officer for Onto Innovation with nearly 29 years of extensive financial leadership experience with global public companies, spanning corporate finance, accounting and reporting, strategic planning, global supply chain and mergers and acquisitions (M&A). Mr. Slicer joins Onto from Boston Scientific Corporation, a global medical technology manufacturer, where he spent 14 years in various senior financial roles, most recently as senior vice president and global operations controller. In this role, he was responsible for the financial performance of the global manufacturing and distribution network having a production value of approximately $3 billion, with a focus on global supply chain improvements and gross margin expansion. Prior to that, Mr. Slicer served as the corporate controller from 2014 to 2019, overseeing a team of over 500 finance employees across the globe managing approximately $10 billion in revenue. From 2010 to 2014, he held multiple divisional CFO roles, where he consistently drove double digit revenue and profit margin growth. Prior to his tenure at Boston Scientific, Mr. Slicer held various financial leadership roles at GE and GE Healthcare. Earlier in his career, Mr. Slicer served as a senior manager at PricewaterhouseCoopers in their audit and assurance practice, where his experience included support for IBM’s global services and software divisions. Mr. Slicer is a licensed CPA and holds a Bachelor of Science in accounting from Providence College.


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