X0202 4 2007-03-09 0000004281 ALCOA INC AA 0001127285 BELDA ALAIN J P 201 ISABELLA STREET PITTSBURGH PA 15212 1 1 0 0 Chairman and CEO Common Stock 2007-03-09 4 A 0 19738 0 A 1221757 D Common Stock 7204 I By Company 401(k) Plan Employee Stock Option (right to buy) 28.925 2007-03-09 4 A 0 327464 A 2012-01-12 Common Stock 327464 327464 D The option vests in three annual installments as follows: 1/3 vests on March 12, 2007, 1/3 vests on January 12, 2008, and 1/3 vests on January 12, 2009. Employee stock options are granted without payment of consideration. On January 12, 2006, the reporting person was granted a performance stock option at a target level of 327,464 shares, with the actual number to be received to be based on Alcoa's return on capital performance for 2006 relative to a comparator group of companies. Based on the calculation of Alcoa's performance for 2006, the reporting person received on March 9, 2007 an option to purchase 327,464 shares of Alcoa common stock. In the aggregate, a total of 4,828,658 employee stock options (with various exercise prices and expiration dates) were beneficially owned by the reporting person as of the date of this report. Brenda Hart (Assistant Secretary), by power of attorney 2007-03-13