Payment processor Vantiv plans to file for IPO-WSJ

July 12 (Reuters) - U.S. payment processor Vantiv LLC plans to file for an initial public offering that could value the company at as much as $4.5 billion, the Wall Street Journal reported, citing sources.

Vantiv, jointly owned by private equity firm Advent International and Fifth Third Bancorp (FITB.O), hopes to raise between $750 million and $1 billion through the IPO, the paper said.

The Ohio-based company has been interviewing banks in recent days and expects to file for an IPO later this year, the Journal reported.

Vantiv, which changed its name from Fifth Third Processing Solutions LLC in June, processes ATM and credit and debit transactions.

Vantiv, Advent and Fifth Third Bancorp were not immediately available for comment outside regular U.S. business hours. (Reporting by A. Ananthalakshmi in Bangalore; Editing by Gary Hill) (ananthalakshmi.as@thomsonreuters.com; within US +1 646 223 8780; outside U.S +91 80 4135 5800; Reuters Messaging: ananthalakshmi.as.reuters.com@reuters.net)