Twitter announced that it has filed for an initial public offering, a move the app-centric world has anticipated for years.

The company broke the news a simple tweet that has been retweeted well-over 4,000 times in 20 minutes. Then, they added: “Now, back to work.” Check it out:

We’ve confidentially submitted an S-1 to the SEC for a planned IPO. This Tweet does not constitute an offer of any securities for sale.