X0202 4 2007-07-18 0000004281 ALCOA INC AA 0001127285 BELDA ALAIN J P 201 ISABELLA STREET PITTSBURGH PA 15212 1 1 0 0 Chairman and CEO Common Stock 2007-07-18 4 S 0 64714 46.11 D 1929462 D Common Stock 2007-07-18 4 S 0 53994 46.10 D 1875468 D Common Stock 2007-07-18 4 S 0 93467 46.09 D 1782001 D Common Stock 2007-07-18 4 S 0 33911 46.08 D 1748090 D Common Stock 2007-07-18 4 S 0 51172 46.07 D 1696918 D Common Stock 2007-07-18 4 S 0 40834 46.06 D 1656084 D Common Stock 2007-07-18 4 S 0 60002 46.05 D 1596082 D Common Stock 2007-07-18 4 S 0 34124 46.04 D 1561958 D Common Stock 2007-07-18 4 S 0 36568 46.03 D 1525390 D Common Stock 2007-07-18 4 S 0 400 46.023 D 1524990 D Common Stock 2007-07-18 4 S 0 54905 46.02 D 1470085 D Common Stock 2007-07-18 4 S 0 39200 46.01 D 1430885 D Common Stock 2007-07-18 4 S 0 52156 46.00 D 1378729 D Common Stock 2007-07-18 4 S 0 100 45.99 D 1378629 D Common Stock 2007-07-18 4 S 0 300 45.98 D 1378329 D Common Stock 2007-07-18 4 S 0 200 45.97 D 1378129 D Common Stock 2007-07-18 4 S 0 900 45.96 D 1377229 D Common Stock 2007-07-18 4 S 0 700 45.95 D 1376529 D Common Stock 2007-07-18 4 S 0 1411 45.94 D 1375118 D Common Stock 2007-07-18 4 S 0 400 45.93 D 1374718 D Common Stock 2007-07-18 4 S 0 500 45.92 D 1374218 D Common Stock 2007-07-18 4 S 0 6000 45.91 D 1368218 D Company Stock 7167 I By Company 401(k) Plan This Form 4 is 3 of 3 Form 4's filed to report the reporting person's transactions on July 18, 2007. Refer to all of the Form 4's filed this date for the reporting person. THIS FORM 4 IS 3 OF 3 FORM 4'S FILED TO REPORT THE REPORTING PERSON'S TRANSACTIONS ON JULY 18, 2007. REFER TO ALL OF THE FORM 4'S FILED THIS DATE FOR THE REPORTING PERSON. Brenda Hart (Assistant Secretary), by power of attorney 2007-07-20