Facebook's Sandberg sells another $3.75m in stock

Facebook Inc COO Sheryl Sandberg sold USD 3.75-million worth of stock in the company, her second stock-sale since trading restrictions on insiders expired last week.

Sandberg sold roughly 176,000 Facebook shares for an average price of USD 21.24 on Tuesday, according to a regulatory filing on Thursday. Sandberg still owns nearly 19 million vested shares of Facebook, the world's No.1 Internet social network site, according to the filing.

Last week, Sandberg sold roughly USD 7.4-million worth of Facebook stock. Facebook general counsel Theodore Ullyot and chief accounting officer David Spillane also sold millions of dollars worth of shares last week. All the Facebook executives' sales were part of pre-arranged stock trading plans.