NEBIUS NBIS

Boaz Tal has served as General Counsel of Nebius since January 2025. Prior to joining Nebius, Mr. Tal was the Deputy CEO and General Counsel at Israel Shipyards Industries Ltd from March 2020 to January 2025. Prior to that, Mr. Tal held a variety of other positions in the Israel Shipyards Group. He also served as a board member of IWI International and other subsidiaries of Naska Industries between 2010 and 2024. He has extensive experience establishing and leading legal departments and partnering with executive leadership on business and strategy development.

Ophir Nave was appointed Chief Operating Officer of Nebius Group in May 2024 and became an executive director in August 2024. Previously, Mr. Nave was a Lead Partner in the Corporate and M&A Practice at the Israeli law firm Arnon, Tadmor-Levy, where he also served on the firm's executive committee. His legal career includes positions at the U.S. law firm Wachtell, Lipton, Rosen & Katz, clerking for Justice Theodor Or of the Israeli Supreme Court, and lecturing on corporate finance at Tel Aviv University. Mr. Nave holds a Doctor of Juridical Science from Harvard Law School, an LL.B. from Tel Aviv University, and a B.Sc. in Computer Engineering from the Technion.

Arne Grimme became a non-executive director of our Board in August 2025. Mr. Grimme has been a partner of De Brauw Blackstone Westbroek, a leading Dutch law firm, since 2003, and serves as the Head of the firm's Corporate M&A practice. He mainly advises listed companies on various corporate matters and complex cross-border transactions. Previously, he worked for Ernst & Young and a different law firm. Mr. Grimme is also a member of the Supervisory Council of the National Maritime Museum. He has studied at the University of Utrecht and Erasmus University Rotterdam.

Danila Shtan is the Chief Technology Officer of Nebius. Prior to his role at Nebius, Mr. Shtan was a Vice President leading Developer Infrastructure, and CTO for Classifieds at Yandex. Mr. Shtan has extensive leadership and operations experience within fast-growing and large organizations building developer tools and related technology.

Matt Weigand became a non-executive director of our Board in August 2025. Mr. Weigand is a partner at Accel, a global venture capital firm, which he joined in 2013. He focuses on investments in enterprise software, financial technology, and security businesses. Prior to Accel, he worked with William Blair's technology investment banking group. Mr. Weigand graduated from Miami University.

Elena Bunina became a non-executive director of our Board in August 2024. Ms. Bunina is a university professor, Israel-based businesswoman and an accomplished mathematician with more than 70 research publications and with a particular focus on algebra and model theory. She currently serves as the Head of Science and Education for the Nebius Group. Ms. Bunina previously served as the Head of Academic and Educational Services across the Company's group, as well as the General Director and director of Human Resources of the company's former Russian subsidiary, stepping down in April 2022. Ms. Bunina holds a Doctor of Science degree, in addition to having a Ph.D in Mathematics, from the faculty of Mechanics and Mathematics at the Moscow State University, where she served as a professor for 12 years until 2022. She currently serves as a professor of Mathematics at Bar Ilan University, in Israel.

Arkady Volozh is the principal founder of Nebius Group and was appointed as executive director and CEO of Nebius Group in August 2024. Mr. Volozh previously served as the founder, Executive Director and Chief Executive Officer of the company between 2000 and 2022. A serial entrepreneur, Mr. Volozh's background in computer science led to the inception of several successful IT enterprises, including InfiNet Wireless and CompTek International, the latter of which he also served as CEO. Mr. Volozh has invested in and served on the board of Face.com, an Israeli face-tagging company (sold to Facebook in 2012), and was an early investor in Getir, a Turkish based company and pioneer in the 'quick commerce' market, being the first to introduce the 15-minute grocery delivery model. Mr. Volozh has also served as a board member for US-based Neurosteer, the company responsible for developing the world's first wearable, medical-grade brain activity interpretation platform used across a wide range of medical and lifestyle applications. Mr. Volozh holds a degree in applied mathematics from Gubkin Institute of Oil and Gas.

Roman Chernin is Chief Business Officer and co-founder of Nebius. He leads business strategy and product direction, including Token Factory, Nebius' enterprise-grade inference platform for deploying and scaling open-source models. Before co-founding Nebius, he spent more than a decade at Yandex leading Search and later Maps and Navigation.

Kira Radinsky became a non-executive director of our Board in August 2024. Ms. Radinsky is the chief technology officer and chairwoman of Diagnostic Robotics, a US-based technology business working in the field of AI to make healthcare better, cheaper and more widely available. As a result of Ms. Radinsky's technology expertise, she founded Mana Bio, an AI-based drug delivery business, and cofounded San Francisco based SalesPredict in 2012, where she led the research and development aspects of data mining. When SalesPredict was sold to eBay in 2016, Ms. Radinsky became eBay's director of data science and chief scientist. Ms. Radinsky has also served on the board of directors for Esh Digital Bank (Tel Aviv), Maccabi Health Care Data Science Institute (Tel Aviv) and HSBC Technology Board (London). Aside from her corporate roles, Ms. Radinsky is a visiting professor at the Technion focusing her research on how web dynamics and knowledge can help predict future global events. Ms. Radinsky has a B.Sc. and a Ph.D in Computer Science from Technion, the Israel Institute of Technology.

Marc Boroditsky has served as Chief Revenue Officer of Nebius since May 2025. Mr. Boroditsky previously served as President of Revenue at Cloudflare, Inc., a global cloud services provider, from November 2022 to August 2024. Prior to that, he served in a variety of senior management roles at Twilio Inc., a cloud communication platform, beginning in February 2015, including as SVP of Sales and Chief Revenue Officer from April 2017 to August 2022. Prior to that, Mr. Boroditsky co-founded a number of technology companies. Mr Boroditsky has served on the board of directors of OneSpan Inc., an identity verification and electronic signature company, since June 2019. He also has served as a member of the board of directors of Asana, a work management software company since April 2025.

Charles Ryan has been a non-executive director of the Board since 2011. A finance professional with 34 years of experience in international markets, Mr. Ryan co-founded United Financial Group (UFG) and became its Chairman and CEO in 1994. In 1998, Mr. Ryan initiated the New Technology Group within UFG Asset Management, which sponsored an early-stage technology investment in ru-Net Holdings. In 2006, Deutsche Bank acquired 100% of UFG's investment banking business, and Mr. Ryan was appointed chief country officer and CEO of Deutsche Bank Group in Russia and remained in that position until the end of 2008, when he became chairman of UFG Asset Management. From 2008 through the end of 2010, Mr. Ryan was a consultant for Deutsche Bank. Prior to founding UFG, Mr. Ryan worked as an associate and principal banker with the European Bank for Reconstruction and Development in London from 1991 to 1994 and as a financial analyst with CS First Boston from 1989 to 1991. Mr. Ryan is also a founder and the general partner of Almaz Capital Partners, an international VC firm, headquartered in Silicon Valley, which connects entrepreneurs and engineering talent in the USA and Eastern European /CIS countries and brings prominent startups to the global market. Mr. Ryan has a degree in government from Harvard University.

Maria del Dado Alonso Sanchez has served as Chief Financial Officer of Nebius since June 2025. Ms. Alonso is a global finance executive with more than 25 years of experience leading finance organizations and shaping strategy for high-growth, digital-first companies across technology, e-commerce, and online platforms. Prior to joining Nebius, Ms. Alonso served as Group CFO at Berlin Brands Group where she was a member of the executive team overseeing all financial matters from 2022 to 2024. Prior to that, Ms. Alonso served as Group CFO and Board member at Azerion. She also has experience in finance and financial controls at Booking.com and Amazon where she helped manage complex international operations and supported rapid growth across multiple markets and business models.