This is just the latest big vote against pay at a top FTSE 100 company after similar protests at Aviva, Cairn Energy, Pendragon and Trinity Mirror in what is being dubbed the Shareholder Spring. Sir Martin Sorrell, one of Britain's most respected captains of industry, looked subdued and grim faced after 60% of WPP shareholders voted against a pay hike for him. Investors were furious about his package because it included a 30% rise in his basic salary and an increase in his long-term bonus to 500% of salary.