![RTL Group on Twitter: "At his own request, Guillaume de Posch will step down as Co-CEO of RTL Group, effective 1 January 2018. He will continue to serve as a non-executive member RTL Group on Twitter: "At his own request, Guillaume de Posch will step down as Co-CEO of RTL Group, effective 1 January 2018. He will continue to serve as a non-executive member](https://pbs.twimg.com/media/DQ6vIvjXcAA4zmV.jpg)
RTL Group on Twitter: "At his own request, Guillaume de Posch will step down as Co-CEO of RTL Group, effective 1 January 2018. He will continue to serve as a non-executive member
![CEO of ProSiebenSat.1 Media Guillaume de Posch (R) and his wife Irene pictured at the Oktoberfest in Munich, Germany, Monday, 25 September 2006. Photo: Adreas Gebert Stock Photo - Alamy CEO of ProSiebenSat.1 Media Guillaume de Posch (R) and his wife Irene pictured at the Oktoberfest in Munich, Germany, Monday, 25 September 2006. Photo: Adreas Gebert Stock Photo - Alamy](https://c8.alamy.com/comp/D3P7K3/ceo-of-prosiebensat1-media-guillaume-de-posch-r-and-his-wife-irene-D3P7K3.jpg)
CEO of ProSiebenSat.1 Media Guillaume de Posch (R) and his wife Irene pictured at the Oktoberfest in Munich, Germany, Monday, 25 September 2006. Photo: Adreas Gebert Stock Photo - Alamy
![Guillaume de POSCH (BEL, Co CEO, Co Chief Executive Officer der RTL Group SA), Bilanz Pressekonferenz fue Guillaume de POSCH (BEL, Co CEO, Co Chief Executive Officer der RTL Group SA), Bilanz Pressekonferenz fue](https://www.imago-images.com/bild/st/0077804652/w.jpg)
Guillaume de POSCH (BEL, Co CEO, Co Chief Executive Officer der RTL Group SA), Bilanz Pressekonferenz fue
![Guillaume de Posch, CEO of Germany's biggest commercial broadcaster ProSiebenSat.1, poses for the media before the annual news conference in Unterfoehring near Munich February 22, 2007. ProSiebenSat.1 posted a 16-percent rise in Guillaume de Posch, CEO of Germany's biggest commercial broadcaster ProSiebenSat.1, poses for the media before the annual news conference in Unterfoehring near Munich February 22, 2007. ProSiebenSat.1 posted a 16-percent rise in](https://c8.alamy.com/comp/2E72K2H/guillaume-de-posch-ceo-of-germanys-biggest-commercial-broadcaster-prosiebensat1-poses-for-the-media-before-the-annual-news-conference-in-unterfoehring-near-munich-february-22-2007-prosiebensat1-posted-a-16-percent-rise-in-2006-core-earnings-as-sales-rose-58-percent-thanks-to-high-advertising-revenues-reutersmichaela-rehle-germany-2E72K2H.jpg)