Fullerton Fund Management, the Singapore-based asset manager backed by Temasek Holdings, said chief executive officer Manraj Sekhon has left the firm.
The decision was announced by the Fullerton board on Tuesday and is with immediate effect, the investment firm said yesterday in an e-mailed response to Bloomberg queries.
Mr Sekhon, who also served as chief investment officer, had been in his role for more than five years.
Fullerton chairman Ho Tian Yee will assume Mr Sekhon's responsibilities in the interim, according to the statement.
Mr Sekhon had been chief executive officer of Fullerton since October 2011, the investment firm's website shows.
Before that, he was director and head of international equities at London-based asset manager Henderson Global Investors.
Fullerton, set up in 2003, had assets under management of US$11.8 billion (S$16.4 billion) at the end of September.
The firm, which is 100 per cent owned by Temasek, focuses on Asian and emerging markets, according to its website.
Its clients include government agencies, pension plans, insurance companies, endowments and sovereign wealth funds.