Ahmed Yahia Ahmed Yahia Ahmed Yahia was elected to the board of directors as Chairman in December 2013 and, effective April 28, 2025, will step down from the Board of Directors and as Chairman. Mr. Yahia is currently the Managing Director and Chief Executive Officer of MGX, a technology investment company based in Abu Dhabi with a focus on development and adoption of artificial intelligence and other advanced technologies. Prior to his role at MGX, Mr. Yahia was the Chief Executive Officer, Direct Investments at Mubadala Investment Company with oversight of the Technology, Life Sciences, Financial Services, Consumer, Industrials & Business Services and Energy & Sustainability portfolios. Mr. Yahia remains a member of Mubadala’s Investment Committee, which develops Mubadala’s investment policies and reviews proposed projects. Prior to Mubadala, Mr. Yahia was a Partner at McKinsey & Company, where he co-led the Principal Investor practice and was also the Managing Partner of the Abu Dhabi practice. He was formerly a Marketing Manager at Procter & Gamble, where he led several flagship brands. Mr. Yahia serves as the Chairman of the board of directors of Compañía Española de Petróleos (CESPA) and is a member of the board of directors of the Abu Dhabi Investment Council, Mubadala Capital, Emirates Global Aluminum and MGX. Previously, he served as a board member of Advanced Micro Devices Inc. (AMD) from 2012 to 2019. Mr. Yahia holds a Bachelor of Science in Industrial Engineering from École Centrale Paris and a Master of Science in Mechanical Engineering/Product Strategy from the Massachusetts Institute of Technology. Mr. Yahia is an independent, non-executive director pursuant to applicable Nasdaq rules.
Tim Breen Tim Breen Tim Breen was elected to GF’s board of directors in January 2018. Tim Breen is Chief Operating Officer (COO) at GF, a position he was appointed to in 2023 and, effective April 28, 2025, will serve as Chief Executive Officer. As COO, he oversees GF’s global operations, including the manufacturing and digital transformation teams. He has also served as a director on the GF board since 2018. Prior to becoming COO, Mr. Breen served as a senior advisor to the Chief Executive Officer with a focus on supporting the company’s business, supply chain and digital transformations. Starting in 2018, he supported the company in various executive roles including leading strategy, business transformation and finance. Since 2010, Mr. Breen served as a member of the senior leadership team of GF’s founding shareholder, Mubadala Investment Company (Mubadala). He also serves as Chairman of the board of directors of NOVA Chemicals. Prior to joining Mubadala in 2010, he was a partner with McKinsey & Company in Abu Dhabi. Mr. Breen holds a Master of Business Administration degree from London Business School. Strategy & Technology Committee Member
Dr. Thomas Caulfield Dr. Thomas Caulfield Board member since 2018 Dr. Thomas Caulfield is the President and Chief Executive Officer (CEO) of GF and, effective April 28, 2025, will serve as Executive Chairman of GF. He was named CEO and elected to the board of directors in March 2018 and led the company’s initial public offering in October 2021, which was the largest semiconductor IPO on the Nasdaq that year. He joined GF in May 2014 as Senior Vice President and General Manager of the company’s Fab 8 semiconductor wafer manufacturing facility in Malta, NY. Dr. Caulfield led operations, process development, and the expansion and ramp-up of semiconductor manufacturing production. He has an extensive career spanning engineering, executive management and global operational leadership with leading technology companies. Prior to joining GF, Dr. Caulfield served as President and Chief Operations Officer (COO) at Soraa from May 2012 to May 2014, the world’s leading developer of GaN on GaNTM (gallium nitride on gallium nitride) solid-state lighting technology. Before Soraa, Dr. Caulfield served as President and COO of Ausra from 2009 to 2010, a leading provider of large-scale concentrated solar power solutions for electrical power generation and industrial steam production. Prior to leading at Ausra, Dr. Caulfield served as Executive Vice President of Sales, Marketing and Customer Service at Novellus Systems, Inc. Before that, Dr. Caulfield spent 17 years at IBM in a variety of senior leadership roles, ultimately serving as vice president of 300mm semiconductor operations for IBM’s Microelectronics division, leading its wafer fabrication and R&D operations in East Fishkill, NY. He currently serves as a member of the board of directors for Sandisk Corporation (following its spinoff from Western Digital) and has been a Trustee for Union College since 2018. Previously, he served as a board member of Western Digital Corporation from 2021 to February 2025. Dr. Caulfield earned a Bachelor of Science in Physics from St. Lawrence University before entering Columbia University’s Fu Foundation School of Engineering and Applied Science, where he earned both his Bachelor and Master of Science in Materials Science and Engineering as well as a Doctorate in Materials Science and Engineering. Dr. Caulfield was also a postdoctoral fellow at Columbia’s Engineering Center for Strategic Materials. • Strategy & Technology Committee Member Download Image
Martin L. Edelman Martin Edelman Martin L. Edelman was elected to the board of directors in February 2017 and is a Mubadala designee. Mr. Edelman currently serves as General Counsel of G42, an artificial intelligence development company based in Abu Dhabi, and “Of Counsel” of Paul Hastings LLP. He is an advisor to Mubadala and is a partner at Fisher Brothers, a real estate partnership. Mr. Edelman serves as Executive Chairman at Manchester Life. He is also a director of Equity Commonwealth (in liquidation), Aldar REIT, and several private companies affiliated with G42, Fisher Brothers and City Football Group. In addition, Mr. Edelman serves on the boards of various non-governmental organizations. Previously, Mr. Edelman served as a board member for Advanced Micro Devices Inc. (AMD) from 2013 to 2017. He has more than 50 years of experience and concentrates his practice on real estate, technology, corporate mergers and international transactions. Mr. Edelman holds a Bachelor of Arts degree from Princeton University and a law degree from Columbia Law School. • Nominating & Governance Committee Chair
David Kerko David Kerko David Kerko was elected to the board of directors in January 2018. Mr. Kerko is Head of North America Private Equity at Elliott Investment Management L.P. Prior to joining Elliott, Mr. Kerko was an advisor, member and co-head of the Technology Group at Kohlberg Kravis Roberts & Co. Inc. (KKR). Prior to joining KKR, he worked for Gleacher NatWest Inc. on mergers and acquisition transactions and financing. Mr. Kerko is currently a member of the board of directors of Cubic Corporation, Nielsen and Cloud Software Group (CSG). Mr. Kerko holds a Bachelor of Science degree and a Bachelor of Science in Engineering degree, summa cum laude, from the University of Pennsylvania. • Lead Independent Director • People & Compensation Committee Chair • Nominating & Governance Committee Member • Strategy & Technology Committee Member
Carlos Obeid Carlos Obeid Carlos Obeid was elected to the board of directors in January 2012. Mr. Obeid is currently the Chief Financial Officer of Mubadala Investment Company with oversight of its commercial functions including treasury, investor relations, financial planning, business performance, financial governance and reporting. Before joining Mubadala, Mr. Obeid worked with the United Arab Emirates Offset Program Bureau where he led a wide range of initiatives including privatization, utilities and financial services. He is a member of the board of directors of Mubadala Capital LLC, Abu Dhabi Commercial Bank PJSC, and Abu Dhabi Investment Council. Mr. Obeid holds a Bachelor of Science in Electrical Engineering degree from American University of Beirut, Lebanon, and a Master of Business Administration degree from INSEAD in Fontainebleau, France.
Saam Azar Saam Azar Saam Azar is Chief Legal Officer at GF, a position he has held since January 2017. He oversees all legal, compliance, government relations, and environmental, health, safety and security matters worldwide. Mr. Azar also serves as Secretary to the GF board of directors and has been involved with the company since its founding in 2009. Before joining GF as Chief Legal Officer, Mr. Azar served in various roles at Mubadala Investment Company, as a senior member of its Legal & Compliance Unit, working primarily on complex, cross-border partnerships. Prior to Mubadala, he worked as an associate at the international law firm of Cleary Gottlieb Steen & Hamilton LLP in New York, where he supported numerous corporate transactions with an emphasis on debt and equity capital markets. Mr. Azar holds a J.D. from New York University School of Law and a Bachelor of Science degree in Civil and Environmental Engineering and Public Policy from Duke University. Download Image
Dr. Thomas Caulfield Dr. Thomas Caulfield Board member since 2018 Dr. Thomas Caulfield is the President and Chief Executive Officer (CEO) of GF and, effective April 28, 2025, will serve as Executive Chairman of GF. He was named CEO and elected to the board of directors in March 2018 and led the company’s initial public offering in October 2021, which was the largest semiconductor IPO on the Nasdaq that year. He joined GF in May 2014 as Senior Vice President and General Manager of the company’s Fab 8 semiconductor wafer manufacturing facility in Malta, NY. Dr. Caulfield led operations, process development, and the expansion and ramp-up of semiconductor manufacturing production. He has an extensive career spanning engineering, executive management and global operational leadership with leading technology companies. Prior to joining GF, Dr. Caulfield served as President and Chief Operations Officer (COO) at Soraa from May 2012 to May 2014, the world’s leading developer of GaN on GaNTM (gallium nitride on gallium nitride) solid-state lighting technology. Before Soraa, Dr. Caulfield served as President and COO of Ausra from 2009 to 2010, a leading provider of large-scale concentrated solar power solutions for electrical power generation and industrial steam production. Prior to leading at Ausra, Dr. Caulfield served as Executive Vice President of Sales, Marketing and Customer Service at Novellus Systems, Inc. Before that, Dr. Caulfield spent 17 years at IBM in a variety of senior leadership roles, ultimately serving as vice president of 300mm semiconductor operations for IBM’s Microelectronics division, leading its wafer fabrication and R&D operations in East Fishkill, NY. He currently serves as a member of the board of directors for Sandisk Corporation (following its spinoff from Western Digital) and has been a Trustee for Union College since 2018. Previously, he served as a board member of Western Digital Corporation from 2021 to February 2025. Dr. Caulfield earned a Bachelor of Science in Physics from St. Lawrence University before entering Columbia University’s Fu Foundation School of Engineering and Applied Science, where he earned both his Bachelor and Master of Science in Materials Science and Engineering as well as a Doctorate in Materials Science and Engineering. Dr. Caulfield was also a postdoctoral fellow at Columbia’s Engineering Center for Strategic Materials. Download Image
Gregg Bartlett Gregg Bartlett Gregg Bartlett is Chief Technology Officer for GF, a position he was appointed to in 2022. He leads the company’s core technology and GF Labs’ functions to drive innovation and long-range research and development portfolio by partnering with key universities and institutions for GF’s differentiated technology capabilities. Prior to his current role, Mr. Bartlett has served in various senior executive roles at GF in technology and business since 2009. Before joining GF, Mr. Bartlett spent 25 years in technical and management positions at Freescale Semiconductor and Motorola. In support of the CHIPS and Science Act, Mr. Bartlett serves on the Industrial Advisory Committee. He represents GF on the Purdue Semiconductor Degree Program Leadership Board. He also serves on the Governing Council for SRC’s JUMP program. Mr. Bartlett serves as a member of the board of directors of Carbice Corporation. Mr. Bartlett holds a bachelor’s degree in chemical engineering from Kansas State University. Download Image
