This excerpt taken from the ADCT DEF 14A filed Dec 15, 2009.
Executive Stock Ownership Guidelines.
The Compensation Committee also maintains ADC stock ownership targets for executive officers as another means of aligning the interests of the named executive officers and the interests of our shareowners. The stock ownership targets for our named executive officers are expressed as a fixed number of shares, which represent the targeted number of shares that each named executive officer is to own over time. For equity
compensation awards made since fiscal 2004, the Compensation Committee instituted a requirement that each executive officer must hold at least 50% of shares received upon the exercise of stock options and the vesting of PSUs and RSUs (after reduction for the payment of taxes and the exercise costs) until such time as the targeted stock ownership level is achieved by the executive.