This excerpt taken from the ATVI DEF 14A filed Jul 29, 2005.
Shares Subject to the 2003 Plan
The maximum number of shares of common stock that may be subject of awards under the 2003 Plan is 18,000,000. No employee participating in the 2003 Plan may receive awards under the 2003 Plan with respect to more than 1,500,000 shares of common stock in any given year. Shares of common stock covered by any unexercised portions of terminated options, common stock forfeited by participants and common stock subject to any awards that are otherwise surrendered by a participant without receiving any payment or other benefit with respect thereto may again be subject to certain new awards under the 2003 Plan. In the event the purchase price of an option is paid in whole or in part through the delivery of shares of common stock, the number of shares of common stock issuable in connection with the exercise of the option shall not again be available for the grant of awards under the 2003 Plan. Shares of common stock subject to options, or portions of options, which have been surrendered in connection with the exercise of an SAR, are not again available for grant of awards under the 2003 Plan. The common stock to be issued or delivered under the 2003 Plan are authorized and unissued shares of common stock, issued shares of common stock that have been reacquired by the Company, or a combination thereof.