X0306 4 2014-07-16 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 2014-07-16 4 M 0 14668 8.33 A 49987.95 D Common Stock 2014-07-16 4 S 0 10107 16.4254 D 39880.95 D Common Stock 2014-07-16 4 S 0 2280 16.4254 D 37600.95 D Common Stock 1120 I By Wife in Company 401(k) Plan Common Stock 3954 I By Company 401(k) Plan Employee Stock Option (right to buy) 8.33 2014-07-16 4 M 0 14668 0 D 2015-01-23 Common Stock 14668 0 D Includes shares acquired under the Alcoa Dividend Reinvestment Plan. The price reported in column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $16.4049 to $16.43. The reporting person undertakes to provide to Alcoa Inc., any security holder of Alcoa Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote. The option, representing a right to purchase a total of 44,000 shares, became exercisable in three equal annual installments beginning on January 23, 2010, which was the first anniversary of the date on which the option was granted. Employee stock options are granted without payment of consideration. Brenda Hart (Assistant Secretary), by power of attorney 2014-07-17