On April 20, 2023, Mr. James Harlow notified Onto Innovation Inc. that he will be resigning from his position as the Company's Chief Operating Officer, as of May 5, 2023. On April 26, 2023, the Company appointed Mr. Ramil Yaldaei as the Company's new Chief Operating Officer, effective on or about May 5, 2023 (Effective Date). Mr. Yaldaei has over 20 years of experience in semiconductor operations, procurement and global supply chain management.

Mr. Ramil Yaldaei, 59, joined the Company in October 2022 as Vice President of Global Operations, Metrology and Inspection and currently serves in such capacity. Prior to joining the Company, Mr. Yaldaei was Senior Vice President, Global Supply Chain and Transformation at Visby Medical, a molecular diagnostics company, from November 2020 until January 2022. Prior to his employment with Visby Medical, Mr. Yaldaei was with RYCC LLC, a consulting company, as its President from November 2017 until November 2020.

From October 2005 to November 2017, Mr. Yaldaei was with Applied Materials, a U.S. semiconductor capital equipment manufacturer, holding various positions of increasing responsibility, most recently having served as Vice President & General Manager, Global Party Sourcing and Technology. Prior to joining Applied Materials, Mr. Yaldaei served as Managing Director, Global Sourcing and Operations at Lam Research Corporation, a U.S. semiconductor capital equipment manufacturer, from September 2003 to October 2005. Mr. Yaldaei holds M.S. and B.S. degrees in Physics from San Jose State University.