Private equity shareholders in Cambridge Silicon Radio, the UK telecoms equipment company, are preparing to extract another £45m (€67.5m) from the company just five months after it launched the biggest UK technology initial public offering in nearly three years.

Cambridge Silicon Radio, which raised £78.7m in February, has been the best performing stock of recently-listed companies since the start of the year. On Monday, its shares closed at £3.90 - almost double its IPO price of £2.00.