Pandora Media Inc., the Internet radio pioneer, reported a wider fiscal fourth-quarter net loss of $8.18 million as revenue fell short of analysts’ estimates. The stock fell in extended trading after the news Tuesday.

The net loss of 5 cents a share compared with a loss of $3.91 million, or 31 cents, a year earlier, before the company went public, Oakland, California-based Pandora said in a statement. Excluding items, the loss of 3 cents was larger than the 2-cent average loss seen by 16 analysts in a Bloomberg survey.

Pandora fell 13 percent to $12.41 in extended trading. The stock lost 2.7 percent to $14.27 at the close in New York trading and has climbed 43 percent this year.