Nielsen announced that Karthik Rao has been named CEO, effective immediately. David Kenny, who has served as CEO since 2018, will assume the role of Executive Chairman. Since early 2023, Rao has served as CEO of Nielsen's Audience Measurement business, responsible for driving and evolving Nielsen's audience measurement in the midst of unprecedented disruption and transition.

His primary focus has been on enabling a currency across all media distribution and consumption models globally. Prior to being named CEO of the audience measurement business, Rao served as Nielsen's Chief Operating Officer. Before that he was the CEO of Nielsen Portfolio, leading the fully independent division comprising Nielsen Entertainment, Nielsen Gracenote, Nielsen Brandbank and the Nielsen Telecom businesses across all global markets.