The company, whose shareholders include TPG Capital Management, would be valued at nearly $7bn at the upper end of the indicative range.
IMS expects to sell 52m shares to raise up to $1.36bn with TPG set to reduce its shareholding to 50 per cent from 62.2 per cent currently.
TPG acquired the company in a $5.2bn deal in 2012 alongside Canada Pension Plan Investment Board and Leonard Green & Partners.
IMS’ income climbed to $276m in the first nine months of 2013 from $173m in the same period of the previous year as revenues rose four per cent to $1.87bn.
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