Board of Directors

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Board of Directors

Mr. Seraphin is President & Chief Executive Officer. With over 20 years of experience managing global businesses, Mr. Seraphin brings the overall vision and leadership necessary to drive future growth for the company. Prior to this role, from October 2015 to June 2018, Mr. Seraphin was the senior vice president and general manager of the Memory and Interface Division, leading the development of the company’s innovative memory architectures and high-speed serial link solutions. From October 2013 to June 2014, Mr. Seraphin also served as the vice president of Worldwide Sales and Operations where he oversaw sales, business development, customer support and operations across the various business units within Rambus. In June 2014, Mr. Seraphin was promoted to senior vice president of Worldwide Sales and Operations. Mr. Seraphin started his career in 1985 as a field application engineer at NEC and later joined AT&T Bell Labs, which became Lucent Technologies and Agere Systems (now Broadcom Inc.). During his 18 years at Agere, Mr. Seraphin held several senior positions in sales, marketing and general management, culminating in his last position as executive vice president and general manager of the Wireless Business Unit. Following this, Mr. Seraphin held the position of general manager of a GPS startup company in Switzerland and was vice president of Worldwide Sales and Support at Sequans Communications. During his career, Mr. Seraphin has advised and supported companies in both the product and IP markets. Mr. Seraphin holds a bachelor’s degree in Mathematics and Physics and a master’s degree in Electrical Engineering from Ecole Superieure de Chimie, Physique, Electronique, based in Lyon, France where he majored in Computer Architecture. Mr. Seraphin also holds an MBA from the University of Hartford and has completed the senior executive program of Columbia University.

Ms. Higashi has served as a director since May 2017. Ms. Higashi currently serves as the chair of our Corporate Governance/Nominating Committee and member of our Corporate Development Committee. Ms. Higashi is a founder of Tohmon Capital Partners, LLC (formerly Tomon Partners, LLC), a strategy and M&A advisory firm based in San Francisco and primarily serving companies in technology and healthcare-related fields since 2003. Ms. Higashi also serves on the boards of One Equity Partners Open Water I Corp (OEPW.U), where she also serves on the Audit Committee, as Chair of the Compensation Committee and Nomination Committee; Takeda Pharmaceutical Company Ltd. (TSE/NYSE), where she also serves on the Compensation Committee and Audit Supervisory Committee; Sanken Electric Co., LTD., where she also serves on the Compensation Committee, Audit Committee and Nominating Committee; and KLA Inc. (Nasdaq), where she also serves on the Compensation Committee. Prior to Tohmon Capital Partners, she was a co-founder and Chief Executive Officer of Gilo Ventures, a technology-focused venture capital firm, from 2000 to 2002. Before that, Ms. Higashi spent 15 years in investment banking. After beginning her investment banking career at Lehman Brothers from 1985 to 1988, Ms. Higashi was a founding member of Wasserstein Perella & Co. and the head of that firm’s technology M&A business from 1988 to 1994, and subsequently served as a managing director in charge of Merrill Lynch’s global technology M&A practice from 1994 until 2000. Prior to her investment banking career, Ms. Higashi spent two years as a consultant at McKinsey & Co. in Tokyo, Japan. She has also served on a number of other public and private boards. Ms. Higashi holds a B.A. from International Christian University in Tokyo, and an M.B.A. from Harvard Business School.

Mr. Kissner has served as a director since July 2012. Mr. Kissner also currently serves as Chair of our Board of Directors and as a member of our Audit Committee and Corporate Governance/Nominating Committee. Mr. Kissner currently serves as chief executive officer of Digital Pillars, a private information systems company. From April 2013 to September 2017, Mr. Kissner served as Chairman of the Board of ShoreTel Inc., a business communications systems company acquired by Mitel Networks Corporation. He joined ShoreTel as a director in April 2006, where he also served on the Nominating and Governance Committee, Audit Committee and Compensation Committee. From January 2007 to February 2015, he was Chairman of Aviat Networks and from June 2010 to July 2011, Mr. Kissner was Chairman and CEO. From 2010 to 2015, he served on the board of Meru Networks, a technology leader in the enterprise wireless systems market, where he also served on the Audit Committee and Compensation Committee. From 1995 to 2006, he served as Chairman and CEO of Stratex Networks, a global provider of wireless transmission solutions. Mr. Kissner previously was Vice President and General Manager of M/A-COM, Inc., a manufacturer of radio and microwave communications products, President and CEO of Aristacom International, a communications software company, Executive Vice President of Fujitsu Network Switching, Inc., and held a number of executive positions at AT&T. He has also served on a number of other public and private boards, as well as not-for-profit boards such as the NPR Foundation and Angel Flight, Inc and KQED Public Media. Mr. Kissner holds a Bachelor of Science degree from California State Polytechnic University and a Master of Business Administration degree from Santa Clara University.

Mr. Mitarotonda has served as a director since March 2021. He currently serves as a member of Audit Committee. He is currently the Chairman, President and CEO at Barington Capital Group, L.P., an activist investment firm. He is also the Chairman, President and CEO of Barington Companies Investors, LLC, the general partner of Barington Companies Equity Partners, L.P., an activist investment fund. He has served as a director of The Eastern Company, a manufacturer of industrial hardware, security and metal products, since May 2015, where he also serves as Chairman of the Nominating and Corporate Governance Committee, and has also served as Chairman since January 2016. Since 2019, he has served as a Special Advisor to L Brands, Inc., a specialty retailer of women’s apparel and personal care products. Over the past five years, Mr. Mitarotonda served as a director of Avon Products, Inc., a global manufacturer and marketer of beauty and related products, from April 2018 to January 2020; OMNOVA Solutions Inc., a global provider of emulsion polymers and specialty chemicals, from March 2015 to April 2020; and A. Schulman Inc., an international supplier of plastic compounds and resins, from October 2005 until August 2018. Over the past five years, he also served as a director of The Pep Boys – Manny, Moe & Jack, an automotive aftermarket service and retail chain, from August 2006 to February 2016, and as Chairman from July 2008 to July 2009. Mr. Mitarotonda has also served as a director of Barington/Hilco Acquisition Corp., a special purpose acquisition company, from February 2015 until January 2018, as Chief Executive Officer from February 2015 to May 2015, and as Chairman from February 2015 until May 2017. He has also served as a director of Ebix, Inc., a supplier of software and e-commerce services to the insurance, financial and healthcare industries, from January 2015 to March 2015; The Jones Group Inc., a designer, marketer and wholesaler of branded clothing, shoes and accessories, from June 2013 to April 2014; Griffon Corporation, a diversified manufacturing company, from November 2007 to January 2012; Ameron International Corporation, a multinational manufacturer of products and materials for the chemical, industrial, energy, transportation and infrastructure markets, from March 2011 to October 2011; and Gerber Scientific, Inc., an international supplier of automated manufacturing systems, from June 2010 to August 2011. Mr. Mitarotonda received a B.A. in economics from Queens College, where he is currently a member of the Board of Trustees and a M.B.A. from New York University’s Graduate School of Business Administration (now known as the Stern School of Business).

Ms. Rao has served as a director since August 2019. Ms. Rao currently serves as the chair of our Audit Committee. She has held several senior executive positions, most recently from January 2011 to March 2016 as Chief Financial Officer at Monolithic Power Systems, a leading company in high-performance analog solutions, and as VP Finance from January 2009 to December 2010. Prior to Monolithic Power Systems, Ms. Rao has held various executive roles at leading technology companies, including Integration Associates Inc from 2004 to 2006, Atrica from 2002 to 2003, Raza Foundries from 2000 to 2002, NVIDIA February 1998 to May 1999 and AMD from 1988 to 1998. Ms. Rao is a certified public accountant (CPA) and holds a master’s degree in business administration from the University of Rochester in New York.

Ms. Rogge has served as a director since April 2021. Ms. Rogge currently serves as a member of our Audit Committee. She is currently the President of the RYN Group LLC, a management consulting business, which she founded in 2010. Ms. Rogge served as an independent director at Kemet Corporation, a global electronic components company, which was acquired by Yageo, from 2018 to 2020, where she also served as a member of the Audit Committee and the Compensation Committee. Previously, she was a director at AeroCentury Corporation, an aircraft leasing company from 2017 to 2018, where she also served on the Audit Committee and the Compensation Committee. She served as the Interim Vice President and Chief Financial Officer of Applied Micro Circuits Corporation, a global semi-conductor company from 2015 to 2016. From 2015 to 2017, Ms. Rogge served as a director at Alliance Parters360, Inc., a private subsidiary of medicines, where she also served as the Chair of the Special Committee and the Chair of the Compensation Committee. In addition, Ms. Rogge served as a Supervisory Audit Committee Member at Technology Credit Union, a full service credit union, from 2013 to 2016. Previously, Ms. Rogge served as the Chief Financial Officer and Senior Vice President of Extreme Networks, Inc., a computer network company from 2007 to 2009. Earlier in her career, she held executive financial and operations management positions at Hewlett Packard Company and Seagate Technology. Ms. Rogge holds a B.S. in Business Administration with an accounting concentration, from California State University, Fresno and a Master of Business Administration degree from Santa Clara University.

Mr. Saraf has served as a director since July 2018. Mr. Saraf currently serves as a member of our Compensation Committee and Corporate Development Committee. He currently serves as Managing Director, Global Head Payments – Value Added Services at JPMorgan Chase & Co., a leading global financial services firm with assets of $3.2 trillion and operations worldwide. JPMorgan Chase & Co. is a leader in investment banking, financial services for consumers and small businesses, commercial banking, financial transaction processing, and asset management. Prior to JPMorgan Chase & Co., from March 2017 to April 2020, Mr. Saraf was the executive vice president and chief technology officer at YapStone, Inc., a global payments FinTech company where he is responsible for product engineering cyber security, cloud infrastructure and AI/ML platforms. Prior to YapStone, from August 2012 to March 2017, Mr. Saraf was chief technology officer at Western Union (WU) Digital, where he led product engineering and launched web and mobile transaction processing applications leveraging massive data sets and advanced fraud detection based on AI/ML technologies. Prior to WU, Mr. Saraf held various senior leadership positions for a period of over ten years at Symantec Corporation, a global leader in enterprise and consumer security products. Prior to his technology career, Mr. Saraf spent several years in technology management consulting firms. Mr. Saraf has won several awards, including a Premier 100 Technology Leader Award by IDG Computerworld in 2017. He holds a B.S. in Engineering from the University of Bombay and a M.S. in Engineering from the University of Wyoming.

Dr. Sayiner has served as a director since October 2019. He currently serves as a member of our Compensation Committee and Corporate Development Committee. He was most recently the executive vice president of Renesas Electronics Corporation from February 2017 to March 2019 and the president of Renesas Electronics America from July 2017 to March 2019. Previously, he was the president, chief executive officer and a director of Intersil Corporation, a leading provider of innovative power management and precision analog solutions, from March 2013 until its acquisition by Renesas Electronics Corporation in February 2017. Prior to Intersil, from September 2005 to April 2012, he served as president and chief executive officer, and director of Silicon Laboratories, a fabless semiconductor company engaged in the design of analog-intensive, mixed signal integrated circuits. Dr. Sayiner served as Chairman of the Semiconductor Industry Association, or SIA, from December 2015 to November 2016 and as Vice Chairman from November 2014 to December 2015. Dr. Sayiner was initially appointed to the Board of the SIA in September 2013. He also serves on the board of directors of Power Integrations. Dr. Sayiner holds a doctoral degree in Electrical Engineering from the University of Pennsylvania, a Master of Science degree in Engineering from Southern Illinois University, along with a Bachelor of Science degree in Electrical and Electronics Engineering and a Bachelor of Science degree in Physics from Bosphorus University in Turkey.

Mr. Stang has served as a director since July 2008 and served as Chairman of the Board from March 2013 to June 2019. Mr. Stang serves as chair of our Compensation Committee and member of our Corporate Governance/Nominating Committee. Mr. Stang currently serves as chairman, president and chief executive officer of Ooma, Inc., a cloud-based communications and connected services public company. He has held the position of Chairman since December 2014 and the positions of president, chief executive officer and director since January 2009. Prior to joining Ooma, Mr. Stang served as a director, chief executive officer and president of Reliant Technologies, Inc., a developer of medical technology solutions for aesthetic applications, from 2006 to 2008. Mr. Stang previously served as chief executive officer and president of Lexar Media, Inc., a provider of solid-state memory products from 2001 to 2006 and chairman from 2004 to 2006. From September 2013 until May 2017, he served on the board of Invensense, Inc. and from December 2008 to January 2014 he served on the board of Solta Medical. Mr. Stang also serves on the boards of private and nonprofit companies. Mr. Stang holds an A.B. in Economics from Stanford University and M.B.A. from the Harvard Business School.