X0306 4 2014-07-21 0000004281 ALCOA INC AA 0001192346 MORRIS MICHAEL G 390 PARK AVENUE NEW YORK, NY 10022 1 0 0 0 Common Stock 2014-07-21 4 P 0 30120 16.541 A 30120 D The price reported in column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $16.515 to $16.565. 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 purchased at each price within the range set forth in this footnote. Brenda Hart (Assistant Secretary), by power of attorney 2014-07-21