This excerpt taken from the WDC DEF 14A filed Sep 24, 2007.
Retention Agreements with Named Executive Officers
Mr. Coyne and Dr. Moghadam. On September 21, 2004, we entered into retention agreements with each of Mr. Coyne and Dr. Moghadam. Pursuant to these agreements, Mr. Coyne received a cash award in the amount of $300,000 and Dr. Moghadam received a cash award in the amount of $450,000. Each award vested and became payable 25% on September 1, 2005, 30% on September 1, 2006 and 45% on September 1, 2007.