Jean Spanjersberg, an executive director with NIB Capital in The Hague, was named head of the bank's London-based collateralized loan obligations group. It is a new position. Mr. Spanjersberg was head of NIBC's loan and portfolio management team, and his replacement has yet to be named, he said. In addition, Herman Guelovani joined NIBC as head of portfolio management for the firm's collateralized debt obligations and other funds with exposure to the loan asset class, said Mr. Spanjersberg. Mr. Guelovani replaces Jonathan Butler, who left recently to help launch Prudential Fixed Income's CLO operations in Europe. Mr. Guelovani was a portfolio manager and senior credit analyst with ING Capital Management. In April, Highland Capital Management acquired ING Capital Management from the ING Group; Highland executives could not be reached to comment on a replacement.