WPP advisory to reveal if it will back shareholder protest over Sorrell exit ahead of AGM

WPP advisory group ISS is set to reveal whether it will back shareholders in a protest over the departure of Sir Martin Sorrell.
Sorrell quit the company he founded in April in the midst of an investigation into allegations of financial and personal misconduct. Since then, the full circumstances behind his resignation have been kept confidential due to data privacy laws.
But, the advertising group’s chairman Roberto Quarta has been under mounting pressure from WPP shareholders to reveal th