Ostrum Asset Management announces three key appointments within its asset management teams
As part of its ongoing efforts to optimize its organization following the consolidation of all asset management and research expertise under the leadership of Gaëlle Malléjac, Global CIO, Ostrum Asset Management (Ostrum AM), an affiliate of Natixis Investment Managers, is pleased to announce three new appointments within this division.
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These changes are in line with Ostrum AM's strategic commitment to further enhancing the quality of its asset management services and to strengthening its position as a leading provider for large institutional and corporate clients.
Xavier-André Audoli has been appointed CIO for Insurance & Institutional asset management, following Gaëlle Malléjac’s appointment as Ostrum AM’s Global CIO in October 2024.
Xavier-André joined Natixis AM (formerly Ostrum AM) in 2007 as Head of Quantitative Engineering for Fixed Income. He later took on the responsibility of developing the company's smart beta bond strategies and has led the Multi-Asset Insurance & Institutional Management team since 2019. In his new role, he will continue to guide this team. His recognized expertise in insurance management, along with his in-depth understanding of the specific challenges associated with various asset classes, position Xavier-André as a pivotal contributor to Ostrum AM’s growth.
Xavier-André holds an engineering degree from the École Supérieure d’Optique and is a graduate of ESSEC business school. He officially took on his new role in January 2025 and reports to Gaëlle Malléjac.
Iain Bremner has been appointed Director of Investment Solutions, a newly established team focused on designing, coordinating, and promoting tailored solutions for institutional clients.
With over 30 years of experience in institutional management, Iain brings a wealth of expertise to this role. He began his career as a market operator at CEPME (Bpifrance) and specialized in bond and credit management at Sogeposte and AGF AM. In 2002, he returned to Sogeposte as Director of Rate and Credit Management, where he played a key role in developing the institutional asset management business starting in 2008. He later led Rate & Credit Asset Management and Research at La Banque Postale AM, notably contributing to the firm’s 100% SRI transformation and the implementation of MiFID II regulations. Since 2020, Iain had served as COO of Ostrum AM’s asset management activities. His extensive knowledge of asset management and deep understanding of institutional client needs are invaluable for advancing Ostrum AM's Investment Solutions.
Iain holds an engineering degree from ESTP and is a graduate of ESSEC business school. He officially took on his new role in January 2025 and reports to Gaëlle Malléjac.
Stéphanie Noël has been promoted to Head of the Systematic Asset Management Team within the Quantitative Investments and Research division.
After starting her career at Axa IM, Stéphanie joined the Natixis group in 2004, first as a Middle Office team member for alternative asset management, and then, from 2006, as an assistant portfolio manager in the Event Driven alternative asset management team. In 2012, she became a portfolio manager for "Structured and Index asset management" within the Systematic Structuring and Asset Management team. In 2018, Stéphanie joined Seeyond, an affiliate of Natixis Investment Managers, as a portfolio manager in the Implementation department, before the firm’s integration into Ostrum AM in early 2023. With her solid background and deep expertise in systematic asset management processes, Stéphanie will lead a team focused on enhancing alpha generation across Ostrum AM’s various management strategies.
Stéphanie holds a Master's degree in Asset Management from Paris Dauphine University. She took on her new role in April 2025 and reports to Emmanuel Bourdeix, CIO for Quantitative Investments and Research.
Gaëlle Malléjac, Global CIO, said: "These appointments reflect our dedication to strengthening our expertise to drive the performance of our investment strategies. Xavier-André, Iain, and Stéphanie each bring valuable experience and insights that will enhance Ostrum Asset Management's standing among the leading players in the market. Together, we remain committed to innovation and to providing investment solutions that meet the evolving needs of our institutional clients."
About Ostrum Asset Management
A responsible1 European institutional investment management leader2, Ostrum Asset Management supports its clients operating under liability constraints across the entire investment value chain, offering both asset management solutions with €416 billion3 under management and a dedicated set of service offerings.
1 Ostrum AM was one of the first French asset manager signatories to the PRI in 2008. More details; www.unpri.org
2 IPE Top 500 Asset Managers (Investment & Pensions Europe) 2023 ranked Ostrum AM as the 9th largest institutional asset manager, as at 12/31/2022. Any reference to a ranking, a rating or an award provides no guarantee for future performance.
3 Source: Ostrum Asset Management, consolidated data at end-December 2024.
About Natixis Investment Managers
Natixis Investment Managers’ multi-affiliate approach connects clients to the independent thinking and focused expertise of more than 15 active managers. Ranked among the world’s largest asset managers1 with more than $1.3 trillion assets under management2 (€1.3 trillion), Natixis Investment Managers delivers a diverse range of solutions across asset classes, styles, and vehicles, including innovative environmental, social, and governance (ESG) strategies and products dedicated to advancing sustainable finance. The firm partners with clients in order to understand their unique needs and provide insights and investment solutions tailored to their long-term goals.
Headquartered in Paris and Boston, Natixis Investment Managers is part of Groupe BPCE, the second largest
banking group in France through the Banque Populaire and Caisse d’Epargne retail networks. Natixis Investment Managers’ affiliated investment management firms include AEW; DNCA Investments;3 Dorval Asset Management; Flexstone Partners; Gateway Investment Advisers; Harris | Oakmark; Investors Mutual Limited; Loomis, Sayles & Company; Mirova; Naxicap Partners; Ossiam; Ostrum Asset Management; Seventure Partners; Thematics Asset Management; Vauban Infrastructure Partners; Vaughan Nelson Investment Management; Vega Investment Solutions and WCM Investment Management. Additionally, investment solutions are offered through Natixis Investment Managers Solutions and Natixis Advisors, LLC. Not all offerings are available in all jurisdictions. For additional information, please visit Natixis Investment Managers’ website at im.natixis.com | LinkedIn: linkedin.com/company/natixis-investment-managers.
Natixis Investment Managers’ distribution and service groups include Natixis Distribution, LLC, a limited purpose broker-dealer and the distributor of various US registered investment companies for which advisory services are provided by affiliated firms of Natixis Investment Managers, Natixis Investment Managers International (France), and their affiliated distribution and service entities in Europe and Asia.
1 Survey respondents ranked by Investment & Pensions Europe/Top 500 Asset Managers 2024 ranked Natixis Investment Managers as the 19th largest asset manager in the world based on assets under management as of December 31, 2023.
2 Assets under management (AUM) of affiliated entities measured as of December 31, 2024, are $1,363.7 billion (€1,316.9 billion). AUM, as reported, may include notional assets, assets serviced, gross assets, assets of minority-owned affiliated entities and other types of nonregulatory AUM managed or serviced by firms affiliated with Natixis Investment Managers.
3 A brand of DNCA Finance.