About us

Supervisory Board

The Supervisory Board monitors the execution of the company policy and advises the executive committee. It includes a representative from ORIX Corporation.


M.F. (Maarten) Slendebroek (male, 1961)

Dutch and Swedish nationality. Appointed August 2020. Mr Slendebroek was Chief Executive Officer (CEO) of Jupiter Fund Management from 2014 until 2019 after joining the firm as strategy and distribution director in 2012. Prior to that, he worked at Blackrock and predecessor companies from 1994. There he held several positions including head of BlackRock Solutions EMEA and head of International Retail. He started his career in 1987 as an equity analyst at Enskilda Securities in London. He is currently chairman of Mintus and senior advisor of YourArq, both fintech start-ups in London.


S. (Sonja) Barendregt-Roojers (female, 1957)

Dutch nationality. Appointed in 2018. Currently a supervisory board member and chairman of the Audit Committee at De Volksbank N.V., Member of the Supervisory Board and Chairman of the Audit & Risk Committee ASR Nederland N.V., ASR Levensverzekering N.V, and ASR Schadeverzekering N.V. and Examiner Financial Auditing Erasmus School of Accounting & Assurance.

Ms Sonja Barendregt-Roojers began her career in 1975 at PwC and its predecessors, and from 1998 to 2017 she was a (senior) partner in the Netherlands, focusing on financial services

S.H. (Stan) Koyanagi (male, 1960)

American nationality. Appointed August 2020. Currently member of the Board of Directors, Managing Executive Officer and Global General Counsel of ORIX Corporation, which he joined in 2013. In addition, as a representative of ORIX Corporation, he serves on the Management Board of ORIX Corporation Europe and the Board of Directors of ORIX Corporation USA, and he also chairs the Board of Directors of Boston Partners Global Investors.

M.A.A.C. (Mark) Talbot (male, 1968)

British nationality. Appointed in 2019. Mr. Talbot has over 25 years of experience in the asset management industry.

Most recently Managing Director Asia Pacific at Fidelity International in Hong Kong. Prior to that, Mr. Talbot was CEO, Asia ex-Japan for Barclays Global Investors (BGI). Formerly responsible for BGI’s US active and index fixed income business, as well as acting Chief Investment Officer, Asia Fixed Income. Prior to BGI, he was Head of International Bonds at State Street Global Advisors.

R.R.L. (Radboud) Vlaar (male, 1977)

Dutch nationality. Appointed in 2018. Currently founding partner at Finch Capital. Led the Benelux Asset Management Practice and co-led the Global Digital Financial Service efforts as former partner at McKinsey and Company. Mr. Vlaar was a member of the European Banking Leadership Group and was previously employed at TPG.