Google Inc. filed plans Wednesday to sell another 5.3 million shares of its prized stock, hoping to raise more than $2 billion to finance its expansion plans and pay for possible acquisitions.

It marks the second time Google has returned to the stock market for more money since its ballyhooed initial public offering at $85 per share in August 2004.

The Mountain View, Calif.-based company raised $4.2 billion six months ago by selling more than 14 million shares at $295.

Google’s stock has remained a hot commodity on Wall Street, even though its price has slipped from a peak of $475.11 reached in January. Based on Wednesday’s closing price of $394.98 on the Nasdaq Stock Market, Google’s latest offering would generate another $2.1 billion.