3 Min Read LONDON (Reuters) - The London Stock Exchange Group reported a 3.9% rise in income in the first quarter and said savings from integrating its $27 billion acquisition of data and analytics company Refinitiv were on target. FILE PHOTO: The London Stock Exchange Group offices are seen in the City of London, Britain, December 29, 2017. REUTERS/Toby Melville/File Photo/File Photo About 40 million pounds ($55.5 million) of savings in combined operating costs from the Refinitiv takeover had been realised and new products had been launched, the group said. It said it was on track to achieve 25% of the announced 350 million pounds savings target by the end of 2021, in line with previous guidance.