Rupert Murdoch has resigned from a number of News Corporation boards in Britain and America, including News International and Times Newspaper Holdings.
A spokesperson for News International said: "Last week, Mr Murdoch stepped down from a number of boards, many of them small subsidiary boards, both in the UK and US.
"This is nothing more than a corporate housecleaning exercise prior to the company split."
Late last month, News Corporation confirmed its intention to separate its publishing and media and entertainment businesses into two companies.
At the time, Mr Murdoch said the change was "one of great pride for me personally, as we move towards the next transformative phase of our history".
Under initial plans, Mr Murdoch would remain chairman of both new companies, but chief executive of the entertainment operation alone, meaning for the first time in almost 60 years, he will have no executive role in his newspaper business.
News Corporation owns a 39% stake in BSkyB, the parent company of Sky News.