Original sentence: The INM group of companies has been dominated by Tony O'Reilly, today CEO, and his family (one of his sons is COO and two others are non-executive directors), since 1973
Edited sentence: The INM group of companies has been dominated by Tony O'Reilly, CEO until early 2009, and his family (one of his sons, formerly COO, became CEO in early 2009, and two others were non-executive directors for many years), since 1973