Snap Inc. has filed paperwork with the U.S. Securities and Exchange Commission for its highly-awaited initial public offering, according to a Wall Street Journal report on Tuesday.<br />The company is seeking to raise as much as $4 billion, which would give it a valuation of between $25 billion and $35 billion, the report states.<br />Snap has told investors that it expects to make between $250 million and $350 million in advertising revenue this year
