X0304 4 2011-12-30 0000004281 ALCOA INC AA 0001268014 KLEINFELD KLAUS 201 ISABELLA STREET PITTSBURGH PA 15212 1 1 0 0 Chairman and CEO Phantom Stock Units 2011-12-30 4 A 0 835 8.62 A Common Stock 835 16676 D 1 For 1 Phantom stock units were acquired under the Alcoa Deferred Compensation Plan and are to be paid out in cash after termination of employment. The reporting person may transfer the phantom stock into an alternative investment account under the Plan at times permitted under the Plan. As of 12/30/2011, the reporting person also held 3,468.2773 phantom stock units under the Alcoa Deferred Fee Plan for Directors which are to be paid out in cash after Board service ends. Brenda Hart (Assistant Secretary), by power of attorney 2012-01-03