X0303 4 2010-01-21 0000004281 ALCOA INC AA 0001268014 KLEINFELD KLAUS 201 ISABELLA STREET PITTSBURGH PA 15212 1 1 0 0 President & CEO Common Stock 2010-01-21 4 A 0 150000 0 A 293456 D Common Stock 2923 I By Company 401(k) Plan Employee Stock Option (right to buy) 8.33 2010-01-21 4 A 0 1200000 A 2015-01-23 Common Stock 1200000 1200000 D The option vests in three annual installments as follows: 1/3 vests on January 23, 2010, 1/3 vests on January 23, 2011 and 1/3 vests on January 23, 2012. Employee stock options are granted without payment of consideration. On January 23, 2009, the reporting person was granted a performance stock option at a target level of 1,200,000 shares, with the actual number to be received to be based on Alcoa's free cash flow performance for 2009. Based on the calculation of Alcoa's performance for 2009, the reporting person received on January 21, 2010 an option to purchase 1,200,000 shares of Alcoa common stock. In the aggregate, a total of 2,489,286 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 2010-01-25