Sorrell's pay fell more than 70%, WPP annual report reveals
His compensation fell 71% from 2016's figure of £48.1m. It is less than a fifth of the £70.4m he earned in 2015, and the lowest figure since 2011, when he earned £11.9m.
Payer Sciences is a health marketing agency that uses data and analytics to gather insights about payer behavior.
The holding company's overall revenue was up 1.8% in the period to $3.9 billion.
Huntsworth has continued its expansion by taking a majority stake in U.S. independent healthcare marketing agency Giant Creative Strategy for an initial sum of $72.2m.