X0202 4 2008-03-13 0000004281 ALCOA INC AA 0001268014 KLEINFELD KLAUS 201 ISABELLA STREET PITTSBURGH PA 15212 1 1 0 0 President & COO Common Stock 2008-03-13 4 A 0 3701 0 A 143456 D Common Stock 756 I By Company 401(k) Plan Employee Stock Option (right to buy) 39.15 2008-03-13 4 A 0 89286 A 2013-10-01 Common Stock 89286 89286 D The option vests in three annual installments as follows: 1/3 vests on December 1, 2008, 1/3 vests on October 1, 2009 and 1/3 vests on October 1, 2010. Employee stock options are granted without payment of consideration. On October 1, 2007, the reporting person was granted a performance stock option at a target level of 89,286 shares, with the actual number to be received to be based on Alcoa's return on capital performance for 2007 relative to a comparator group of companies. Based on the calculation of Alcoa's performance for 2007, the reporting person received on March 13, 2008 an option to purchase 89,286 shares of Alcoa common stock. Brenda Hart (Assistant Secretary), by power of attorney 2008-03-14