Dec 3 (Reuters) - Aspen Insurance (AHL_pc.N) is targeting its $4 billion initial public offering next year in New York instead of London partly due to management concerns about valuations and more stringent listing requirements in Britain, the Financial Times reported on Sunday. Bermuda-based Aspen, owned by private equity group Apollo, is being advised by Goldman Sachs, Citi and Jefferies on an IPO planned for the first half of next year, the report said, citing people familiar with the matter. Greater liquidity in the United States was also an important factor, it added. An Aspen spokesperson declined to comment on the report. Reporting by Shivani Tanna and Surbhi Misra in Bengaluru; Editing by Alison Williams and Will DunhamOur Standards: The Thomson Reuters Trust Principles.

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Persons: Goldman Sachs, Shivani Tanna, Surbhi Misra, Alison Williams, Will Dunham Organizations: Aspen Insurance, Financial Times, Aspen, Citi, Jefferies, London, Thomson Locations: New York, London, Britain, Sunday, Bermuda, United States, Bengaluru