The chief executive of Worldpay, the private-equity owned UK payments processor, is due to receive a £50 million payout after the company's stock market flotation in London next month.

The initial public offering of shares, set to be one of the largest in the UK for four years, puts Philip Jansen in line for the £50 million paper windfall after his arrival just two years ago, although he and other executives intend to keep at least 75 per cent of the net proceeds in the business for at least three years. Mr Jansen is one of about 230 managers who will share in a pot of £350 million if the company reaches its £3.5 billion market capitalisation target. All of Worldpay's 4,500 staff stand to benefit though, with longer-serving employees looking to receive as much as £6,000 in shares or cash. Mr Jansen has already invested £1 million into Worldpay, which processes 31 million transactions a day, providing the infrastructure for big ecommerce companies and mobile payment services. Worldpay declined to comment until the publication of the prospectus, expected in early October.

Worldpay's private equity owners, Bain Capital and Advent International, targeted an IPO to raise £890 million rather than taking up a £6.6 billion all-cash offer from Ingenico. – Copyright The Financial Times Limited 2015