Sources
MediagazerMartin Sorrell's S4 says it is in early talks to combine with private equity-owned MSQ; S4 has a ~£130M market cap after its stock has declined ~35% in 2025 (@athomson6 / Bloomberg) https://t.co/7MDFhCWSdt https://t.co/cNidXsq5PQ
Reuters Tech NewsMartin Sorrell's S4 Capital confirms merger talks with MSQ Partners https://t.co/V0YLQP8EOM https://t.co/V0YLQP8EOM
BloombergMartin Sorrell's S4 Capital confirms talks over tie-up, and UK starting salaries slow -- get briefed ahead of your morning calls with The London Rush https://t.co/GLEiRdFtyi

