TV streaming pioneer Roku Inc.has publicly filed a registration statement with the U.S. Securities and Exchange Commission relating to a proposed initial public offering of shares of its Class A common stock.

Rokus says The number of shares to be offered and the price range for the proposed offering have not yet been determined. Roku has applied to list its Class A common stock on the NASDAQ Global Select Market under the ticker symbol "ROKU."

Connected to televisions, Roku devices provide access to services offered by Netflix , Hulu, Amazon.com , Starz among others.

Roku had 15.1 million active accounts as of June 30, according to the company's latest filing.

The company streamed 2.9 billion hours, including advertising, in the six months ended June 30, a 76 percent jump from a year earlier.