Martin Sorrell-founded S4 Capital saw its shares jump 14% as a result of the news.Martin Sorrell-founded S4 Capital saw its shares jump 14% as a result of the news. Read More


Martin Sorrell-founded S4 Capital saw its shares jump 14% as a result of the news.Martin Sorrell-founded S4 Capital saw its shares jump 14% as a result of the news. Read More