X0206 3 2013-10-21 0 0000004281 ALCOA INC AA 0001590197 Collins Robert Sean 390 PARK AVENUE NEW YORK NY 10022 0 1 0 0 Vice President and Controller Common Stock 26537.84 D Common Stock 1133 I By Wife in Company 401(k) Plan Common Stock 3596 I By Company 401(k) Plan Employee Stock Option (right to buy) 28.79 2014-01-17 Common Stock 3356 D Employee Stock Option (right to buy) 8.33 2015-01-23 Common Stock 29333 D Employee Stock Option (right to buy) 13.54 2020-01-26 Common Stock 19260 D Employee Stock Option (right to buy) 16.24 2021-01-25 Common Stock 12720 D Employee Stock Option (right to buy) 10.17 2022-01-20 Common Stock 40680 D Employee Stock Option (right to buy) 8.88 2023-01-16 Common Stock 40920 D The option vested in three equal annual installments beginning January 17, 2009. The option was part of an option grant that vested in three equal annual installments beginning January 23, 2010. The shares remaining subject to the option (reported in the table) vested on January 23, 2012. The option vested in three equal annual installments beginning January 26, 2011. The option vests in three equal annual installments beginning January 25, 2012. The option vests in three equal annual installments beginning January 20, 2013. The option vests in three equal annual installments beginning January 16, 2014. Brenda Hart (Assistant Secretary), by power of attorney 2013-10-28