Martin Sorrell’s spat with WPP
Advertising giant WPP has cancelled a long-term share award to Martin Sorrell, its founder and former CEO, accusing him of leaking confidential client information
Digital-advertising firm S4 Capital has raised its annual profit targets after a strong first quarter, reports Alex Barker in the Financial Times. S4, founded by Martin Sorrell (pictured) after his acrimonious split with advertiser WPP in 2018, saw like-for-like revenue bounce by 35% in the first three months of the year thanks to account wins at BMW and confectionery giant Mondelez. The group is in a sweet spot as digital advertising gathers pace. S4 has grown to a £3.1bn valuation and plans to issue bonds to finance a £500m takeover war chest.
Sorrell and WPP still have scores to settle. Last week WPP cancelled a long-term share award to its former employee, accusing him of leaking confidential client information to the media while he was still in charge. Sorrell has fired back with a level of derision worthy of a Trump tweet, dubbing the move “outrageous” and saying it was “driven by personal animus”, “envy” and “blind rage”. He has also mocked “WPP’s recent poor share price performance…WPP blew $1 billion by selling their 20 per cent stake in Globant at 52p, it now trades at over 220p…It’s a bit rich that they’re accusing me of leaks, given their own over the last three years.”
Sorrell won’t be feeling too out of pocket, says Dasha Afanasieva on Breakingviews. The shares WPP will withhold are worth at least £200,000. Yet the value of Sorrell’s 10% holding in S4 Capital has soared by 14% this year, leaving him £38m richer. WPP’s decision to go after its former CEO is a “false economy”. Valued at £12bn, WPP is only “inviting comparisons” with Sorrell’s £3bn “upstart”.
MoneyWeek
Subscribe to MoneyWeek today and get your first six magazine issues absolutely FREE
Sign up to Money Morning
Don't miss the latest investment and personal finances news, market analysis, plus money-saving tips with our free twice-daily newsletter
Don't miss the latest investment and personal finances news, market analysis, plus money-saving tips with our free twice-daily newsletter
Get the latest financial news, insights and expert analysis from our award-winning MoneyWeek team, to help you understand what really matters when it comes to your finances.
Alex is an investment writer who has been contributing to MoneyWeek since 2015. He has been the magazine’s markets editor since 2019.
Alex has a passion for demystifying the often arcane world of finance for a general readership. While financial media tends to focus compulsively on the latest trend, the best opportunities can lie forgotten elsewhere.
He is especially interested in European equities – where his fluent French helps him to cover the continent’s largest bourse – and emerging markets, where his experience living in Beijing, and conversational Chinese, prove useful.
Hailing from Leeds, he studied Philosophy, Politics and Economics at the University of Oxford. He also holds a Master of Public Health from the University of Manchester.
-
Profit from leisure sector as consumers go on spending spreeThe UK leisure sector had a straitened few years but now have cash in the bank and are ready to splurge. The sector is best placed to profit
-
Nationwide: Annual house price growth slows to lowest level in almost two yearsThe average house price went up by just 0.6% between December 2024 and December 2025, Nationwide Building Society said
-
How to profit from the UK leisure sector in 2026The UK leisure sector had a straitened few years but now have cash in the bank and are ready to splurge. The sector is best placed to profit
-
Who won the streaming wars?The battle of the TV and film streaming giants for dominance looks to be entering a final phase. The likely winner may surprise you, says Simon Wilson
-
'Investors should expect a good year for equities'Opinion The economy is positive, and investors are still cautious, says Max King
-
8 of the best properties for sale with indoor gymsThe best properties for sale with indoor gyms – from a four-storey mews house in London’s Knightsbridge, to a 1920s Arts & Crafts house in Melbury Abbas, Dorset
-
Top stock ideas for 2026 that offer solidity and growthLast year’s stock ideas from MoneyWeek’s columnist and trader, Michael Taylor, produced another strong performance. This year’s stocks look promising too
-
Market predictions for 2026: Will Dubai introduce an income tax?Opinion My 2026 predictions, from a supermarket merger to Dubai introducing an income tax and Britain’s journey back to the 1970s
-
Stock markets have a mountain to climb: opt for resilience, growth and valueOpinion Julian Wheeler, partner and US equity specialist, Shard Capital, highlights three US stocks where he would put his money
-
The steady rise of stablecoinsInnovations in cryptocurrency have created stablecoins, a new form of money. Trump is an enthusiastic supporter, but its benefits are not yet clear