million in 2010 and net loss of $129 million. According to unaudited results for 2011, revenues decreased by 46.5% in 2011, resulting in another net loss of $150 million. On January 4, 2012, Trident filed for Chapter 11 bankruptcy protection appointing Entropic Communications as the stalking horse bidder. In February 2012, Entropic announced it would buy Trident's set-top box chip business for $60 million. In June 2012, Cambridge Silicon Radio paid $1M for Trident's audio products. Around the same time Sigma Designs purchased Trident's remaining TV chip business. Stock price, stock option practices and litigation Trident common shares traded on the NASDAQ stock market from its initial public offering on December 16, 1992 to 2012. The stock split two-for-one on 21 November 2005 and reached a high of $31.07 on 19 April 2006, representing a market capitalization of approximately $1.9 billion. It later declined substantially including a large drop on 26 October 2007. The stock dropped below $3 in September 2008 and it would never close above $3 again. In November 2005, Trident announced that its founding chairman and CEO, who owned 10% or more of the company's shares, had established a pre-arranged trading plan to sell up to 1,250,000 pre-split shares of common stock. In November 2006, Trident announced the resignation of its founder and CEO following an investigation by a special committee into back-dating of stock option grants, and announced that it would restate its financial results for the period 1994 to 2006 to reflect non-cash charges for stock based compensation expense. The U.S. Securities and Exchange Commission in 2010 announced a settlement with Trident's founder and former CEO and with Trident's former chief accounting officer, relating to a complaint alleging illegal back-dating of stock options in the period from 1993 to 2006. As part of the settlement, the former CEO agreed to be barred for five years from serving as an officer or director of any company registered with the SEC and to pay a $350,000 penalty and a disgorgement (representing the benefit gained from the back-dating of stock options) of $817,500 payable to Trident. In 2011, Trident reached a settlement with its former CEO resulting from a derivative shareholder suit that resulted in payment of $9.4 million to the company. Graphics chipsets The following lists are not complete. Desktop TVGA8200LX (1987) TVGA8800 (1988) - first S/VGA compatible chipset (ISA), 512 KB framebuffer TVGA8800BR (512 KB, 128