In January 2008, at the same time as completing the purchase Today FM (Ireland's last national radio station independent of O'Brien and state broadcaster RTÉ), O'Brien increased his INM shareholding to become that company's second-biggest shareholder behind Tony O'Reilly, whom he ousted just over four years later.
En xaneiro de 2008, mentres completaba a compra de Today FM (a última emisora de radio independente de O'Brien e RTE en Irlanda), O'Brien aumentou as súas accións en Independent News & Media para converterse no segundo accionista maioritario logo de Tony O'Reilly, a quen superou tan só catro anos máis tarde.