Twitter says that four executives are leaving the company.
Its stock fell more than four per cent in premarket trading.
CEO Jack Dorsey posted a statement to the microblogging service saying that Alex Roetter, Skip Schipper, Katie Stanton and Kevin Weil are exiting the company.
Dorsey said he wanted to address employees later this week, but issued a statement due to 'inaccurate press rumours' about the departures.
Roetter served as senior vice president of engineering, Schipper was vice president of human resources, Stanton was vice president of social media, and Weil was senior vice president of product.
After a long streak of robust growth that turned it into one of the internet's hottest companies, Twitter's growth has slowed dramatically during the past year and a half to leave the San Francisco-based company scrambling to catch up with social networking leader Facebook and its 1.5 billion users.
Twitter's malaise resulted in the departure of Dick Costolo as the company's CEO last July and ushered in the return of Dorsey, who had been ousted as the company's leader in 2008.
Dorsey helped invent Twitter in 2006 and imposed a 140-character limit on messages, so the service would be easy to use on mobile phones that had 160-character limits on texts at that time.
Twitter may now be looking to expand beyond its 140 character tweets in a bid to make its service more appealing to wider audience.
