Twitter says it has filed IPO documents

Posted at 6:12 PM, Sep 12, 2013
and last updated 2013-09-12 14:17:20-04

NEW YORK (AP) — Twitter is going public. The short messaging service says it has filed confidential documents for an initial public offering of stock.

San Francisco-based Twitter Inc. posted on its official Twitter account that it has "confidentially submitted an S-1 to the SEC for a planned IPO."

Twitter's IPO has been long expected. The company has been ramping up its advertising products and working to boost ad revenue in preparation.