Board of Directors

Stefano Buono has served as Co-Founder, Chief Executive Officer and former President of newcleo since March 2021. Mr. Buono is a nuclear physicist and entrepreneur. Prior to cofounding newcleo, he founded Advanced Accelerator Applications S.A. (‘‘AAA’’) in 2002 and served as its Chief Executive Officer and President until January 2018. AAA began trading on the Nasdaq Global Select Market in November 2015 and was acquired by Novartis AG in January 2018 in a transaction valued at approximately $3.9 billion. From January 2018 to January 2021, Mr. Buono served as an advisor to AAA. Earlier in his career, Mr. Buono worked for approximately 10 years with Nobel laureate Carlo Rubbia at the European Organization for Nuclear Research (CERN) and CRS4—the Center for Advanced Studies, Research and Development in Sardinia. Mr. Buono also currently serves as Chairman of Planet Smart City and LIFTT S.p.A., as Chairman of the board of Trained Therapeutix Discovery, and as a member of the supervisory board of Gauss Fusion. He previously served as an independent director of Abeona Therapeutics Inc. from May 2018 to September 2020. Mr. Buono received a master’s degree in physics from the University of Turin.
 

Elisabeth Rizzotti has served as Co-Founder, Chief Operating Officer and Managing Director, Italy of newcleo since 2021, as well as Deputy Chief Executive Officer of newcleo since January 2026. Ms. Rizzotti has also served as a director of newcleo since June 2025. Before cofounding newcleo, Ms. Rizzotti worked at Accenture Italia for over a decade, most recently as a senior manager focused on financial services clients. She subsequently served at Banca Lombarda e Piemontese S.p.A. from 2002 to 2007 in strategic planning and marketing roles, and then at Unione di Banche Italiane S.p.A. (UBI Banca) from 2007 to 2021 in a series of senior leadership roles, including Head of Retail, Head of Direct Channels and Communication, Head of Company Multichannel Experience, Head of Marketing and, from 2017, Head of Communications. In that latter role, she led communications during the incorporation of UBI Banca into Intesa Sanpaolo S.p.A. Ms. Rizzotti began her career at CERN. She received a degree in physics and a specialization in nuclear physics from the University of Turin.

Jeffrey J. Lyash is expected to serve as our chairman. Mr. Lyash has over 40 years of experience in the power industry, including more than 20 years in senior executive roles. He served as President and Chief Executive Officer of the Tennessee Valley Authority from 2019 until his retirement in 2025. Prior to TVA, he served as President and Chief Executive Officer and a director of Ontario Power Generation and as President of Chicago Bridge & Iron Power. Earlier, Mr. Lyash spent 20 years at Carolina Power & Light and its successor companies, Progress Energy and Duke Energy,
in executive roles including President and Chief Executive Officer of Progress Energy Florida and Executive Vice President of Energy Supply of Duke Energy, and previously held senior technical and management positions at the U.S. Nuclear Regulatory Commission. Mr. Lyash currently serves as a director of Dominion Energy, Inc., Curtiss Wright Corporation and Aecon Group Inc., and previously served as a director of Granite Construction Incorporated. He holds a bachelor’s degree in mechanical engineering from Drexel University.
 

Anne-François de Bourdoncle de Saint Salvy, a retired vice admiral of the French Navy, has served as a nonexecutive director of newcleo S.A. since June 2025. Mr Saint Salvy has served as Vice President of the Alumni Association of the French Institute for High Defense Studies since November 2025 and as a Senior Advisor at Archery Strategy Consulting since October 2024. He spent a decade at EDF, first as Director of offshore wind projects from 2013 to 2014, then as Vice President of Nuclear Industry Policy from 2014 to 2020, and finally as PMO Director from 2020 to 2023, where he managed the deployment of the Excell Plan and designed a new organisation for nuclear activities. In 2018, he founded the French Nuclear Industry Association (GIFEN). Mr Saint Salvy received a degree in engineering from the French Naval Academy in 1976 and a certification in nuclear engineering and nuclear energy from Ecole des applications militaires de l’energie atomique (EAMEA) in 1991.
 

Manfredi Lefebvre d’Ovidio de Cluni.res di Balsorano has served as a nonexecutive director of newcleo since May 2025. Mr Lefebvre has been Chairman of Heritage Group since 1995, Executive Chairman of Abercrombie & Kent Travel Group since 2019, and Executive Chairman of Quintessential Brands Group Ltd. He serves as Vice Chairman of Arqit Quantum. In 2025, he was appointed Chairman of AirAsia MOVE and Chairman of the World Travel & Tourism Council (WTTC). From 2001 to 2020, Mr Lefebvre served as Executive Chairman of Silversea Cruises, which he led through a period of global expansion and the 2018 sale of a two thirds stake to Royal Caribbean Group. In public service, Mr Lefebvre is the Honorary Consul of Ecuador in Monaco and the Permanent Observer of the Sovereign Order of Malta to UNESCO. He has been awarded the Orders of Saint Charles and Grimaldi.
 

Dr. Andrea Ruben Osvaldo Levi has served as a nonexecutive director of newcleo since March 2022. Dr. Levi has served on the Board of Trustees of the New Museum of Contemporary Art of New York since February 2018. From April 2012 to April 2025, he served as Vice President of Alpitour S.p.A. and a member of its Board, and concurrently as a member of the Board of Neos Airline S.p.A. He also served on the Board of Voihotels S.p.A. from February 2018 to April 2025, and on the Board of Advanced Accelerator Applications S.A. from January 2010 to June 2014. Dr. Levi received a Ph.D. in nuclear physics from the Massachusetts Institute of Technology and a laurea in physics from University di Torino. He is a member of the American Physical Society.

Mr. Maeusli has served on the Boards of Lantheus since June 2020 and Inventiva since May 2019. Mr. Maeusli also served on the Board of Progenics Pharmaceuticals since November 2019 until its acquisition by Lantheus in June 2020. From 2003 to July 2018, Mr. Maeusli served as the Chief Financial Officer of Advanced Accelerator Applications (AAA), a Novartis company, and was one of the three senior executives who grew AAA from a startup to a global leader in Molecular Nuclear Medicine, listed the Company on Nasdaq in November 20154 and sold it to Novartis in January 2018 for $3.9 billion. Before that, Mr. Maeusli held various consultant roles, including at Gemini Consulting from 1995-1996 and Accenture from 1996 to 2001, and subsequently practiced as an independent consultant from 2002 to 2003. Mr. Maeusli received a licentiate degree in 1988 from the University of St. Gallen and a M.B.A. from Columbia Business School in 1995.

Raffaele Petrone has served as a non-executive director of newcleo since March 2022. Mr. Petrone is Chairman of Petrone Group, a holding company of more than 30 companies operating across Italy and in Singapore, Spain, Ireland, Germany, France, the United States, the United Kingdom, and Portugal. He is Chairman of Pierrel S.p.A., Chairman of Health Triage S.r.l., and Chairman of Neahelipolis S.r.l., and Chief Executive Officer of Fin Posillipo S.p.A. He is a member of the Board of Altheia Science S.r.l., a member of the Board of 1000 Farmacie, a director of Quick No Problem
Parking S.p.A., and a director of Si.Ge.A. Costruzioni S.p.A. Mr. Petrone received a degree in pharmacy in 1986 from Università degli Studi di Napoli ‘‘Federico II.’’

Ms. Taherian has over 25 years of experience as a Chief Financial Officer, Chief Operating Officer, and acting Chief Executive Officer for global industrial companies, and currently serves as CFO of Carbon Upcycling Technologies. She previously served as CFO of 3Degrees and of Xpansiv, the world’s largest online exchange for voluntary carbon markets, where she helped raise over $725 million from investors including Blackstone, Goldman Sachs, and Bank of America. Earlier in her career she held senior finance roles at Exxon and Chevron over a 16year period and began as a consultant at Accenture. Over her career she has worked on financings of over $4.5 billion and M&A transactions of over $2.5 billion. Ms. Taherian serves as Chair of the Audit Committee of the SPAC and as a director of Heffernan Insurance, and has served on numerous corporate and nonprofit boards. She has been an adjunct professor at the UC Davis Graduate School of Management for 10 years. Ms. Taherian holds a B.S. in Mechanical Engineering from UC Davis and an MBA from the Kellogg School of Management at Northwestern University.