Twitter's Chief Operating Officer Adam Bain is resigning his post after six years in yet another shakeup at the struggling tech firm.
According to a report from the Mercury News on Wednesday, Bain will be replaced by Chief Financial Officer Anthony Noto, and the firm will search for a new CFO.
In a series of tweets, Bain indicated he was ready to "do something new" outside the company.
San Francisco-based Twitter, which has struggled to expand its user base and to meet Wall Street expectations, saw its stock dip 4 percent Wednesday after the announcement, the newspaper said.
In October, the microblogging social network laid off about 350 workers, or roughly 9 percent of its worldwide workforce.