When Sir Martin Sorrell set up S4 Capital it was meant to mark a triumphant last act, a return to the top of ad land and a means of rehabilitating his tarnished reputation, but the worst slump since the advertising recession of the late noughties is threatening to derail his comeback.
Sorrell launched the digital marketing group at lightspeed just a matter of months after his scandal-ridden departure from WPP in 2018, which followed allegations that he paid for a sex worker using funds from the FTSE 100 company he founded and spent decades building into the world’s biggest advertising group.
