Warner Bros. Discovery's advertising chief is leaving. Read the memo sent to staff.

Warner Bros. Discovery

Jon Steinlauf, Warner Bros. Discovery's top ad salesman, will leave the media company at the end of the year, according to an internal memo from Bruce Campbell, WBD's chief revenue and strategy officer, that was shared with Business Insider. No replacement was named; the company said it would perform a search to find his successor and that Steinlauf would stay in place until that time.