This belonged to his father Georg von Holtzbrinck's publishing group, who founded the media company in 1931 and led it to success during the Nazi era.
In 2001, he handed over operational management to his 22-year-younger half-brother Stefan von Holtzbrinck and took over as chairman of the supervisory board.
On June 1, 2009, Dieter von Holtzbrinck sold his shares in the publishing group to his half-brother Stefan and his sister Monika Schoeller, each now holding 50 percent.
The daily newspapers with only regional significance (Saarbrücker Zeitung group) initially remained with the Verlagsgruppe Georg von Holtzbrinck.
Until Rupert Murdoch's entry in 2007, Holtzbrinck was a member of the Corporate Governance Committee of the board of directors of the US publisher Dow Jones.