Press release

Sienna IM inflows reach the 2.6 billion euros mark in 2023

In 2023, Sienna Investment Managers (Sienna IM) achieved a very good performance, confirming its ambitions for pan-European multi-expertise development, with inflows of 2.6 billion* euros. Total assets under management reached 34.1 billion euros, an increase of 12.5% year-on-year.

Download PDF
  • Positive momentum in all the Group’s areas of expertise was driven by Listed Assets**, which accounted for 2.1 billion euros. It is concentrated on SFDR 8 funds, allocated to fixed-income products, including green bonds, low-carbon and climate-transition equity products, and monetary and cash products.
  • Our Private Credit*** expertise, which supports real-economy players, contributed more than 300 million euros, confirming investors’ attraction to infrastructure financing funds linked to the energy transition and to Obligations Relances
  • Against a complex market backdrop, our Real Estate expertise is approaching a regular transaction volume of over 180 million euros, across several European countries.

Paul de Leusse, Chief Executive Officer of Sienna IM, commented:

“Sienna IM’s activity was particularly strong in 2023. We exceeded €34 billion in assets under management, with inflows of €2.6 billion. We benefited from the strength of our multi-expertise business model, diversified across liquid and private assets and client types: institutional and retail. The arrival of new talent, particularly in the sales and ESG teams, has strengthened our ability to offer bespoke, innovative solutions. Our partner, Malakoff Humanis, provided us with constant support during the year.

In 2024, Sienna IM will continue to support its clients through responsible investment strategies, particularly in the energy transition field, with a particular focus on the mid-market sector. The democratisation of access to private assets for retail clients will also remain one of the priorities of our development”.


* excluding market effect and capital contributed by GBL (Groupe Bruxelles Lambert)

** Sienna Gestion, an AMF-approved asset management company and member of the Sienna Investment Managers group

*** Sienna AM France, an AMF-approved asset management company and member of the Sienna Investment Managers group