Twitter plans to make its initial public offering filing public this week, news website Quartz reported on Sunday, citing a person familiar with the social media network's plan.
Twitter, which is expected to be valued at up to $15 billion, filed with U.S. regulators on September 12 to go public, but did so confidentially and without providing a timeline under a process available to emerging growth companies.
Quartz said that Twitter's IPO could still be delayed by a variety of factors, from changes to the prospectus to market conditions, to a potential shutdown of the U.S. government. Representatives for Twitter did not immediately respond to a request seeking comment on the Quartz report.
(Read more: Twitter picks NYSE for IPO: Report)