London-based insurance and reinsurance broker Glenrand Ltd. is undergoing a management buyout. Glenrand, whose specialties include professional indemnity, directors and officers and treaty reinsurance coverages, plans to expand, particularly in the United States, according to Chief Executive Mark Pattle....Chris Giles has been appointed president and CEO of Chubb Insurance Co. of Europe. Mr. Giles, previously head of Chubb Corp.'s Asia-Pacific division, succeeds Joel Aronchick, who will become director of Chubb's international operations with responsibility for Europe, Asia, Latin America, Canada and Bermuda....Geoff Riddell has been appointed chief executive of Zurich Financial Services Group's nonlife insurance business in the United Kingdom, Ireland and Southern Africa. Mr. Riddell, currently managing director of ZFS's London-based corporate and government businesses, succeeds Patrick O'Sullivan, who will become group finance director. Mr. Riddell is currently chairman of the Assn. of British Insurers' liability committee.
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