X0201 42004-01-13 0000004281 ALCOA INC AA 0001143958 KELSON RICHARD B 201 ISABELLA STREET PITTSBURGH PA 15212 0100Exec. VP and CFOCommon Stock2004-01-134S0450035.25D359595DCommon Stock2004-01-134S050035.24D359095DCommon Stock2004-01-144S0170035.31D357395DCommon Stock2004-01-144S0330035.32D354095DCommon Stock2004-01-144S0410035.37D349995DCommon Stock2004-01-144S090035.38D349095DCommon Stock2004-01-144S0500035.70D344095DCommon Stock2004-01-144S0500036.00D339095DCommon Stock8443IBy Company 401(k) PlanBrenda Hart (Assistant Secretary), by power of attorney2004-01-15