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Ostrum Asset Management

Ostrum Asset Management is a leading asset manager in Europe providing institutional clients high-quality fixed income, equity, multi-asset and insurance investment strategies with an active ESG approach.

Ostrum AM draws on its investment expertise to enhance the impact of its clients' commitments, as they act together to support European citizens' life plans, health and retirement. As a European institutional investment manager, Ostrum AM supports its clients in their liability-driven investments, offering both asset management solutions on the back of its long-standing fixed income and insurance-related management expertise, and investment services. Ostrum AM is a responsible investment advocate working with large institutional clients, insurers, pension funds, health insurers, corporations as well as management companies and wholesale/retail networks worldwide across all asset classes.

Why Ostrum Asset Management?

The analyses and opinions referenced herein represent the subjective views of the author(s) as referenced, are as of the date shown and are subject to change without prior notice.

With more than 125 investment specialists incl. ~50 research experts – all with an average experience of nearly 20 years – we are experts at what we do.."
– Matthieu Mouly, Head of Business Development, Ostrum Asset Management

Source: Ostrum, as of March 31. 2025

Ostrum Asset Management
Founded
1984
Headquartered
Paris, France
Expertise
Money market, investment grade, high yield and crossover credit, sovereign debt including: emerging, inflation, aggregate, equity and insurance-specific solutions with an ESG approach
AUM
US $453.40B as of 30 September 2025
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Firm at a glance

100%

of assets analysed through ESG criteria

89%

of assets classified as SFDR article 8

$49 billion

invested in sustainable bonds

$150+ billion

AUM with decarbonisation targets

Source: Ostrum, as of March 31. 2025

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Assets under management (AUM) as of September 30, 2025. 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.