Arnaud led the firm’s founding in 2024 and serves as Chief Executive Officer and Portfolio Manager across the firm’s European and Global Equity strategies. He has over 35 years of experience in investing, specialising in European growth companies. He worked for Comgest for 27 years, from 1996 to 2023, where he was a lead portfolio manager of European equity strategies representing over €10bn of client assets. He was Chief Executive Officer of Comgest Global Investors from 2016-2023, Chief Investment Officer from 2015-2022 and an executive member of the group’s Board of Partners. He was also Chair of the Executive, Investment, and Sustainability Committees as well as the Comgest Foundation Board.

Arnaud started his career in 1989 as an Analyst at Banque Paribas, before joining Société de Bourse Oddo and then Generali as a Portfolio Manager. He holds a Master of Science degree from the ESSEC business school (France) and is a member of the French Society of Financial Analysts (SFAF, Société Française des Analystes Financiers).

Alistair leads the investment team and is a Portfolio Manager across the firm’s European and Global equity strategies. He joined as a Founding Partner in 2024 and has over 20 years’ investment experience, specialising in European growth companies.

He worked for Comgest from 2012-2024 where he was a lead Portfolio Manager of European strategies representing over €10bn of client assets. He was also a member of the Investment Committee and the Comgest Foundation Board. He started his career in 2006 at Standard Life Investments in Edinburgh before moving to London to join Citigroup in 2009.

A British and French national, Alistair has a degree in Geography from Durham University and is a CFA® charterholder. He is a Professor at HEC Paris Ecole de Commerce.

Sébastien joined Aecus in 2025 as a Portfolio Manager for the European equity strategies and he leads the firm’s corporate culture research and shareholder engagement strategy. He has over 27 years’ industry experience spanning portfolio management, sell-side company analysis and sustainable finance.

Sébastien began his career in 1998 at DWS as a buy-side analyst specialising in technology companies before joining Crédit Agricole where he was a Portfolio Manager responsible for a global technology fund. Following roles at ODDO Securities and Groupama Asset Management extending into the responsible investment domain, he became Head of Responsible Investment at Comgest from 2013-2024, where he was also a co-lead Portfolio Manager of several European and Global equity strategies and a member of the Investment and Sustainability Committees.

A French national, Sébastien graduated from the ESCP Business School in Paris in 1997, holds a post-graduate degree in financial engineering at Sorbonne University and is a SFAF (Société Française des Analystes Financiers) charterholder. He is completing an Executive PhD at Dauphine PSL focusing on “effective shareholder engagement” and teaches Sustainable Finance at a number of Paris business schools. He is also an active member of the French SIF (the FIR) as well as the research and foresight commission of the “Institut Français des Administrateurs”, where he is co-authoring reports on governance and stewardship.

Fan Ye is a Portfolio Manager leading the Global Equity strategy at Aecus Partners. Based in London, his global company research and idea generation also support the investment team’s European strategies.

Fan joined Aecus in 2025 and brings over 15 years of experience specialising in global equity, spanning both long only and long/short strategies. From 2022 to 2025 he solo managed a global long/short fund under the name of Ginkyo Asset Management, a firm he founded to manage assets for a group of private investors. Previously, he worked for Majedie Asset Management from 2012 to 2021, focussing on the Tortoise Fund, the UK Equity fund and the UK Focus fund, representing over £10bn of assets.

A Chinese national, Fan holds a Master of Science (Hons) in Astrophysics from the University of Cambridge. He is s a CFA® charterholder. A passionate mathematician, he is a former gold medal winner of the Singapore Mathematics and Chemistry Olympiads.

Cyril is an Analyst within the European equity team at Aecus Partners, focusing on small and mid-cap company research and idea generation.

He joined Aecus in 2025 and brings over 15 years of European equities expertise, with a strong focus on identifying quality companies with significant development potential and long-term value creation. Cyril began his career as a buyside analyst with Groupama Asset Management in Paris before joining the firm’s European small and mid-cap investment team in 2014. There, he worked as an Analyst and Portfolio Manager, co-managing over €4 billion in client assets. In 2020, Cyril co-founded Lonvia Capital, an investment boutique where he was a Portfolio Manager. He joined Aecus Partners in 2025.

A French national, Cyril holds a MSc in Financial Markets from EDHEC.

Jane is responsible for commercial activities at Aecus including investor relations, marketing and strategy. She also works closely with the Head of Operations to ensure the firm’s fund operations and infrastructure align with client needs.

Jane joined Aecus as a Founding Partner in 2024 and has over 25 years of industry experience, combining a finance and accounting foundation with extensive investor relations expertise. She spent over ten years at Comgest (Paris), where she was Head of Responsible Development and previously served as Head of Global Consultant Relations, UK and US Investor Relations. Prior to this, she worked in the investor relations team at Antin Infrastructure Partners during the global fundraising of Flagship Fund II and held various accounting, finance and investor relations roles with firms including Warakirri Asset Management (Melbourne), PricewaterhouseCoopers (Melbourne) and BNP Paribas (Dublin).

Jane is a dual Australian and French citizen. She graduated from the University of Melbourne and is a Chartered Accountant (CA ANZ).

Jean Lalau Keraly, representing Sarranier Capital*, works with Aecus Partners as Senior Investor Relations. Jean has over 23 years of industry experience, spanning roles in investor relations, multi-management, and engineering in Liability Driven structured solutions. Prior to working with Aecus Partners, he was head of the French institutional investor relations team at ODDO BHF AM. He joined ODDO BHF AM in 2021 following the acquisition of Metropole Gestion, where he was co-head of the investor relations team, partner and catering to US and European investors. Prior to Metropole Gestion, he worked for Barclays Wealth in Paris as French investor relations and in the multi-management team in London. He also worked in London at Morgan Stanley IM and Old Mutual Asset Manager, a quantitative hedge fund, in business development roles.

He began his career with the AXA IM group in 2003, working in Paris and then London on liability driven structured solutions. Jean is a French national, graduated from the EISTI engineering school in France and holds an MSc, Master of Science, in applied mathematics to finance.

*Aecus Partners is authorised and regulated by the Autorité des Marchés Financiers under number GP-20240027 and has mandated Sarranier Capital for investor relations services, represented by Jean Lalau Keraly.

Helen oversees all aspects of the operational structure of Aecus, including middle and back office functions, risk and internal controls outsourcing, finance and fund operations including managing relationships with service providers for the Aecus UCITS ICAV.

Helen joined Aecus as a Founding Partner in 2024 and has over 17 years’ experience in the investment management industry across a number of operational roles. Helen worked for Comgest from 2010 to 2024 where she was Chief of Staff to the CIO, managing the Investment Solutions and Analytics team and working alongside the firm’s investment teams. She was responsible for the external research budget, was co-Chair of the firm’s Investment Committee and was an advisor to the board of Comgest Growth Plc in Ireland. Prior to this role, she worked within Comgest’s Investor Services team, responsible for client communications and reporting, performance measurement and database management.

Helen started her career in project management and communications with roles at France Telecom and Société Générale. A dual British and French citizen, she holds a degree in French from Oxford University and a Master’s degree in International Project Management from the ESCP business school in Paris.