Three staff at Brevan Howard Asset Management, including the manager of a commodities fund the $27 billion hedge fund manager decided to close late last year, have stepped down as partners at the firm in a little over a month, Companies House filings reveal.

Filings dated April 11 and published on Wednesday at Companies House by Brevan Howard Asset Management LLP, many of whose staff are based in Switzerland or the UK, show that Matthew James stepped down as a member of the limited liability partnership on March 15, while Filippo Cipriani stepped down as a partner on March 31 and Stephane Nicolas the following day.