The information in this post was last updated on September 10, 2008

The purpose of this blog post is to track options backdating related litigation. All of the companies that have been sued — and of which the The D & O Diary is aware — have been listed below. The D & O

Options Backdating Securities Litigation: On June 29, 2006, a putative securities fraud class action was initiated against KLA-Tencor. This brings the number the number of companies sued in securities fraud class action lawsuits based on options timing allegations to eight. Background on the other seven companies previously named can be found on prior D

D & O insurers, concerned about lawsuits that have already have been filed and troubled by the possibility of an unknown number of lawsuits yet to come, have begun to respond to the options backdating investigation. On June 20, 2006, the Wall Street Journal (subscription required) carried an article entitled "Options Timing Raises Concern

In the last couple of months, there has been widespread media coverage (including several prior posts on The D & O Diary) discussing the growing investigation into options backdating. New allegations have surfaced that may evidence options “springloading.”

Options backdating involves retroactively dating the grant and exercise price of an options issue to a

On May 30, 2006, American Tower Corporation became the fourth company to be named in a securities class action lawsuit connected with the options backdating probe. (As noted in this prior post on The D & O Diary, the three companies previously named in securities class action lawsuits related to options backdating are Vitesse