Steve Kelley

Chief Executive Officer and President

A semiconductor industry leader with more than 30 years of experience, Steve Kelley joined Advanced Energy as president and chief executive officer in March 2021. In addition, he serves on the company’s board of directors. A high-impact technology executive, Kelley is renowned for leading some of the world’s largest global companies through financial growth and transformation.

Prior to Advanced Energy, he served as president and chief executive officer of Amkor Technology, Inc., a leading semiconductor package and test company, leading its financial transformation by prioritizing strong revenue growth, efficiency gains, and a culture of continuous quality improvement. Kelley also held executive leadership roles at various semiconductor manufacturing companies including Cree, Texas Instruments, and Philips Semiconductor (now NXP Semiconductors), where he focused primarily on revenue growth through the timely development of new products and services.

Kelley holds a Bachelor of Science degree in chemical engineering from the Massachusetts Institute of Technology and a Juris Doctor (J.D.) from Santa Clara University.

Paul Oldham

Chief Financial Officer and Executive Vice President

Paul Oldham joined Advanced Energy in May 2018 as the chief financial officer and executive vice president. 

Oldham brings 30 years of experience in finance and administration. Previously, he was the chief financial officer of Electro Scientific Industries, Inc. (ESI), a leading developer and manufacturer of laser-based production equipment. He also served as the senior vice president of administration and corporate secretary. Oldham helped lead ESI through a significant multi-year transformation which resulted in strong revenue growth and profitability.

Prior to joining ESI, he held several senior leadership positions, including vice president finance and corporate controller, vice president treasurer, and investor relations and European operations controller at Tektronix, Inc., a test, measurement, and monitoring company.

Oldham holds a bachelor of science in accounting and a master of business administration in accounting and finance from Brigham Young University.

Dana Huth

Chief Revenue Officer and Executive Vice President

Dana Huth is Advanced Energy’s chief revenue officer and executive vice president. Prior, he served as president of Artesyn Embedded Power, which Advanced Energy acquired in September 2019. Before leading Artesyn Embedded Power, Huth was the president of consumer business and global sales at Artesyn Embedded Technologies.

Previously, Huth served as president of global sales and president of key accounts and distribution at Emerson Embedded Power. At Motorola, Huth also held senior management positions. These positions included vice president of worldwide sales and market development, vice president of global accounts, and vice president of sales for the Asia Pacific region and Japan.

Huth also spent more than 19 years with Avnet, Inc., one of the world’s largest value-added distributors and systems integrators of electronic components, computer products, and embedded technology. He held various positions which included senior vice president and leading Avnet’s global partnership with IBM.

Tom McGimpsey

Chief Administrative Officer and Executive Vice President

Tom McGimpsey joined Advanced Energy in April 2009 and now serves as its chief administrative officer and executive vice president. He leads the mergers and acquisitions function, the office of integration management, business strategy, planning & optimization, legal, ESG initiatives, governmental affairs, and other administrative duties. McGimpsey also serves as the corporate secretary. Prior to his promotion in September 2020, McGimpsey was the executive vice president-general counsel and corporate secretary. He also served as the interim chief financial officer in 2018, the corporate development (M&A) officer from 2011 to 2015, and the executive leading IT from 2010 to 2013.

Prior to joining Advanced Energy, McGimpsey was vice president of operations for First Data Corporation, executive vice president of business development and chief legal officer for McDATA Corp., and senior corporate attorney at US WEST, Inc. McGimpsey worked at national law firms in private practice and was a senior engineer for Software Technology, Inc. / Harris.

McGimpsey is a commissioner on the Colorado Higher Education Commission. He is on the board of directors of CPP, Inc., a global wind and air quality engineering services company. McGimpsey received his master of business administration with distinction from Colorado State University, his Juris Doctor from the University of Colorado, and his bachelor of science in computer science with a minor in electrical systems from Embry-Riddle Aeronautical University.

Isabel Yang

Chief Technology Officer and Senior Vice President

Dr. Isabel Yang joined Advanced Energy in July 2018 as the chief technology officer and senior vice president. 

Before joining Advanced Energy, Yang served as the vice president of strategy and operations for IBM Research. She focused on driving leading-edge innovations in areas, such as artificial intelligence, healthcare solutions, and high-performance computing. Prior to her strategy role, Yang spent several years in IBM’s technology and intellectual property licensing department. Yang’s early years at IBM were spent in the semiconductor research and development center as part of the microelectronics division.

She has three patents, over 40 technical publications, and was the recipient of the Paul Rappaport Best Paper award at IEDM for her work on silicon on insulator with active substrate (SOIAS). She’s a strong believer in empowering girls to embrace careers in science, technology, engineering, and math (STEM).

Yang completed all of her higher education at the Massachusetts Institute of Technology (MIT). Her degrees include a bachelor of science in material science, and a master of science and doctor of philosophy in electrical engineering, specializing in solid-state physics and semiconductors. 

Rory O’Byrne

Chief People Officer and Senior Vice President

Rory O’Byrne joined Advanced Energy in May 2020 as our chief people officer and senior vice president. O’Byrne leads Advanced Energy’s global human resources and environmental, health, and safety organizations where he is responsible for leading the company’s vision and strategy around people and organizational effectiveness while advancing a culture that embraces performance, growth, and inclusion across our global diverse workforce.

O’Byrne has more than 25 years of global and international human resources experience with leading public and private equity-backed companies in the technology, energy, industrial, and services sectors. Before joining Advanced Energy, he served as executive vice president and chief human resources officer for Jonah Energy LLC, one of the largest privately held natural gas producers in the U.S. Prior to this, O’Byrne served as senior vice president and chief human resources officer for MRC Global, the world’s leading global supplier of industrial products and services to the energy industry. He held global and international human resources leadership roles at BG Group, McDermott International, Hess Corporation, and BHP.

O’Byrne holds a bachelor’s degree in human resources and industrial relations from the University of Western Australia in Perth, Western Australia, and is also a graduate of the Program for Leadership Development at Harvard Business School. 

Jason Giachino

Chief Information Officer and Senior Vice President

Jason Giachino joined Advanced Energy in 2015 and now serves as Advanced Energy’s chief information officer and senior vice president. He drives IT strategy, system and process improvement efforts, and acquisition integrations. Prior to his promotion in 2021, Giachino was the vice president of information technology and responsible for the strategy and operations of Advanced Energy’s global technology systems across 25+ office locations and more than 10,000 employees.

Giachino brings nearly 30 years of experience as a global information technology executive with experience in the high technology, manufacturing, and telecom industries. Prior to joining Advanced Energy, Giachino was Chief Information Officer for Comverse (now Mavenir) and served in executive roles with Hypercom/Equinox Payments, Channell Commercial, OMM Inc., and PricewaterhouseCoopers.

Giachino earned a Bachelor of Science degree in management information systems from California State University-Chico.

Frederick A. Ball

Director since 2008

Frederick A. Ball has been a director of Electro Scientific Industries, Inc., a leading supplier of innovative laser-based microfabrication solutions for industries reliant on micro technologies, since 2003, and is currently the chair of its compensation committee and a member of its audit committee. In December 2016, Ball joined the board of Engagio Inc., a leading provider of account-based marketing and sales solutions. In April 2017, Ball joined the board of Sendgrid, Inc., a leading provider of a cloud-based customer communication platform, and is currently the chair of its audit committee and a member of its nominating and governance committee.

Ball previously served as executive vice president and chief administrative officer of Marketo Inc., a leading provider of a cloud-based marketing platform, from February 2016 through August 2016. Prior to that, Ball was Marketo’s senior vice president and chief financial officer from May 2011 to February 2016. Prior to joining Marketo, Ball was the chief financial officer for a number of private and public technology companies, including Webroot Software, BigBand Networks, Inc., and Borland Software Corporation. Ball also served as vice president of mergers and acquisitions for KLA-Tencor Corporation, a manufacturer of semiconductor equipment, and prior to that as its vice president of finance. Ball was with PricewaterhouseCoopers LLC for over 10 years.

Chairman of the Compensation Committee
Member of the Pricing Committee

Grant H. Beard

Chairman since 2016 and Director since 2014

Grant H. Beard currently serves as a senior executive operating partner for Blue Point Capital, a private equity firm, and as an executive in residence at Summit Partners, a global alternative investment firm.

Beard served as chairman and chief executive officer of Wynnchurch Industries, LLC, a diversified holding company investing in engineered product businesses, from January 2016 to June 2017. Beard also served as a senior advisor to Wynnchurch Capital Ltd. Prior to joining Wynnchurch, Beard served as the chairman and chief executive officer of Wolverine Advanced Materials, LLC, a Wynnchurch company, from July 2012 until October 2015. Beard served as president and chief executive officer of Constar International, Inc. from 2010 to 2012, where he led the financial and operational restructuring of Constar’s global packaging business that was later sold to Plastipak Corporation. Prior to that, Beard served as president and chief executive officer of TriMas Corporation, chairman and chief executive officer of Health Media, Inc., and global group president of fluid management products at Dana/Echlin Corporation. In addition, Beard served as a senior executive operating partner with Blue Point Capital from 2009 to 2014.

Beard also has experience at two private equity/merchant banking groups, Anderson Group and Oxford Investment Group, where he was actively involved in corporate development, strategy, and operations management.

Chairman of the Pricing Committee 
Member of the Audit and Finance Committee
Member of the Nominating and Governance Committee

Anne DelSanto

Director since 2020

Anne DelSanto is a limited partner at Operator Collective and Stage2Capital. From February 2018 to April 2019, DelSanto served as the executive vice president and general manager of platform at Salesforce.com, a customer relationship management company, following six years of other senior leadership roles at the company. Prior to Salesforce, DelSanto served as group vice president of sales engineering at Oracle. She began her career as an account systems engineer with IBM, where she spent several years building solutions for the health care market. She serves on the board of Juniper Networks and New Relic. DelSanto graduated with a degree in mathematics from St. John's University and earned a master of science in administrative studies from Boston College.

Tina M. Donikowski

Director since 2018

Tina M. Donikowski retired from General Electric Company, a diversified industrial company, in October 2015 after 38 years with the company. She served in many senior positions during her career at General Electric Company, including most recently as vice president, global locomotive business, GE transportation, from January 2013 until her retirement.

She currently serves on the board of directors for Atlas Copco AB, a world-leading provider of sustainable productivity solutions based in Stockholm, Sweden; CIRCOR International, a leading provider of flow control solutions and other highly-engineered products and subsystems used in energy, aerospace, and industrial markets based in Burlington, Massachusetts; and Eriez Magnetics, a privately held manufacturer and designer of magnetic, vibratory, and metal detection applications based in Erie, Pennsylvania. She also serves as a member of the board of trustees, Gannon University, and the board of trustees, Boys and Girls Club of Erie, Pennsylvania.

Donikowski holds a bachelor of science in industrial engineering and an honorary doctorate from Gannon University.

Chairman of the Nominating and Governance Committee
Member of the Audit and Finance Committee  

Ronald C. Foster

Director since 2014

Ronald C. Foster is currently on the board of Everspin Technologies Inc., a publicly-traded provider of RAM solutions and Foster also serves as chairman of the audit committee.

Foster previously served as chief financial officer and vice president of Finance of Micron Technology, Inc. (“Micron”), a global corporation that produces forms of semiconductor devices, from April 2008 to March 2015. Foster was appointed to that position in 2008 after serving as a member of Micron’s board of directors from June 2004 to April 2005. Before joining Micron, Foster was the chief financial officer and senior vice president of FormFactor, Inc., a semiconductor wafer test equipment company. Prior to joining FormFactor, Inc., Foster served as the chief financial officer for JDS Uniphase, Inc. and Novell, Inc., and also served in various financial and operational roles at Applied Materials, Inc., Egghead Software, and Hewlett Packard Company. He previously served as a board member of Inotera Memories Inc., LUXIM Corporation, and Aptina Company.

Chairman of the Audit and Finance Committee
Member of the Pricing Committee

Edward C. Grady

Director since 2008

Edward C. Grady is currently on the Southern Illinois University Edwardsville SIUE Foundation board.

Grady served as president and chief executive officer of Electro Scientific Industries, Inc., a leading supplier of innovative laser-based microfabrication solutions for industries reliant on microtechnologies, from February 2014 to September 2016. Grady served as chairman and chief executive officer of Reel Solar Inc., an early-stage start-up company focused on low-cost PV Solar panel production technology and process, from 2010 until February 2014. Grady retired in October 2007 from his position as president and chief executive officer of Brooks Automation, Inc. (“Brooks Automation”), a publicly-traded provider of automation solutions to the global semiconductor and other complex manufacturing industries, including cleantech and data storage. Prior to joining Brooks Automation in February 2003, he ran multiple divisions at KLA-Tencor Corporation, a publicly-traded process control company, and served as chief executive officer of Hoya Micro Mask Inc., a supplier of photomasks and services to the semiconductor industry.

Grady began his career as an engineer for Monsanto Electronic Materials Company (“MEMC”) and, during his 14 years with the company, rose to the position of vice president of worldwide sales for the EPI division of MEMC. Grady also served on several boards of other technology companies, providing cross-board experience.

Member of the Audit and Finance Committee
Member of the Compensation Committee

Steve Kelley

Director since 2021

Steve Kelley has served as chief executive officer, president, and director since March 2021. 

Prior to Advanced Energy, he served as president and chief executive officer of Amkor Technology, Inc., a leading semiconductor package and test company, leading its financial transformation by prioritizing strong revenue growth, efficiency gains, and a culture of continuous quality improvement. Kelley also held executive leadership roles at various semiconductor manufacturing companies including Cree, Texas Instruments, and Philips Semiconductor (now NXP Semiconductors), where he focused primarily on revenue growth through the timely development of new products and services.

Kelley holds a Bachelor of Science degree in chemical engineering from the Massachusetts Institute of Technology and a Juris Doctor (J.D.) from Santa Clara University.

Lanesha Minnix

Director since 2020

Lanesha Minnix is the chief legal officer and corporate secretary of Flowserve Corporation, a publicly traded manufacturer of engineered and industrial pumps, valves, and seals for a range of industries. Prior to joining Flowserve, Minnix served as senior vice president and general counsel for BMC Stock Holdings, a leading provider of diversified building products and services, from June 2017 until June 2018. Minnix served as vice president, deputy general counsel, and chief compliance officer for ABM Industries, a facility solutions company, from May 2012 until May 2017. Prior to joining ABM, Minnix held roles with increasing responsibility at both Royal Dutch Shell/Shell Oil Company and Sprint Corporation.

Thomas M. Rohrs

Director since 2006

Thomas M. Rohrs has served as executive chairman and director of Ichor Systems, Inc., a leading manufacturer of gas and chemical delivery systems for semiconductor process equipment since February 2012 and was the chief executive officer from September 2014 to January 2020. Rohrs also serves on the board of directors of Intevac, Inc., a publicly traded leading supplier of magnetic media processing systems.

Previously, Rohrs was the chief executive officer of Skyline Solar, Inc., a solar equipment manufacturer, from June 2010 to September 2012. Rohrs had been an advisor and consultant to a number of companies, both public and private, including renewable energy companies from February 2009 to June 2010. From April 2006 to February 2009, Rohrs served as chief executive officer and chairman of the board of Electroglas, Inc., a then public supplier of wafer probers and software solutions for the semiconductor industry. In July 2009, Electroglas filed a voluntary petition under Chapter 11 of the U.S. Bankruptcy Code, citing the dramatic decline in semiconductor manufacturing equipment resulting from the global economic recession. In August 2009, Rohrs began serving as interim chief executive officer of Electroglas, which subsequently sold substantially all of its assets. From December 2004 to March 2010, Rohrs served as a director of Electroglas. From 1997 to 2002, Rohrs was employed by Applied Materials, Inc. (“Applied”), a semiconductor equipment company, most recently as senior vice president of Global Operations, and served as a member of Applied’s executive committee.

Rohrs served on the board of directors of Vignani Technologies Pvt. Ltd., an engineering services company, from 2005 to February 2014, and Magma Design Automation, Inc., a publicly-traded electronic design automation software and design services company, from July 2003 to March 2012. Rohrs served on the board of Seque Manufacturing Services, a private manufacturing services company, from 2008 to 2015. Rohrs served on the board of directors of Ultra Clean Holdings, Inc. from 2003 to 2008 and was a member of its compensation and nominating committees. Rohrs served as a director of Ion Systems, Inc., a then private electrostatic control company, from 2003 until January 2006 when Ion Systems was sold.

Member of the Compensation Committee
Member of the Nominating and Governance Committee

John A. Roush

Director since 2016

Mr. Roush currently serves as an operating executive advisor to private equity firms. Roush also serves as a director of Lemaitre Vascular, Inc., a publicly-traded, global provider of medical devices and implants for the treatment of peripheral vascular disease, and he is a member of its audit committee. Roush also serves as a director of Applied Life Sciences & Systems, a privately-held company that is developing automated vaccine delivery technology for the poultry industry.

Roush previously served as chief executive officer and a director of Novanta Inc., (formerly, GSI Group Inc.), a leading global supplier of precision photonic components and subsystems to original equipment manufacturers in the medical and advanced industrial markets, from December 2010 to September 2016. Roush joined Novanta after a twelve-year career with PerkinElmer, Inc., a provider of technology and services to the diagnostics, research, environmental, safety and security, industrial, and laboratory services markets, where he was a corporate officer and served in several leadership positions, most recently leading the company’s $1.2 billion environmental health segment. Prior to joining PerkinElmer, Roush held management positions with Outboard Marine Corporation, AlliedSignal, Inc., (now Honeywell International), McKinsey & Company Inc., and General Electric Company.

Member of the Compensation Committee
Member of the Nominating and Governance Committee