Sir Martin Sorrell

Mumbrellacast: Jens Monsees, agency mergers and Hugh Marks steps down from Nine

Sir Martin Sorrell announces plan to rebrand MightyHive and MediaMonks as a single brand at Mumbrella360

S4 Capital reports profit growth in Q3 and year-to-date

Mumbrellacast Special: Sir Martin Sorrell on dismantling holding companies and his economic outlook

Jens Monsees and Mick Fanning join Mumbrella360: Reconnected as the full program is announced

‘They will be de-consolidated’: Sir Martin Sorrell on the future of traditional holding companies

S4’s Mighty Hive expands data practice with six new publishers

‘We’re definitely not building a 2.0 of anything’: Aden Hepburn on leaving WPP and ‘picking the bones’ of holding companies

Sir Martin Sorrell confirmed to speak at Mumbrella360: Reconnected

S4 Capital acquires Australian analytics company Lens 10

Australian ad agency founder Elizabeth Buchanan joins board of Sorrell’s S4 Capital 8

WPP faces ‘challenging year’, says CEO Mark Read 1

Did Sir Martin Sorrell just apologise to the ad industry? 1

Sorrell slams WPP management over job losses and brand changes 7

Martin Sorrell’s S4 Capital confirms discussions to acquire MightyHive programmatic platform

The contradiction at the heart of WPP 6

Ogilvy CEO John Seifert talks ‘refounding’, Martin Sorrell, #MeToo, China, awards, AI, bad clients and consultancies

WPP denounces Martin Sorrell’s bid for MediaMonks as ‘unlawful’