X0201 42004-01-20 0000004281 ALCOA INC AA 0001143958 KELSON RICHARD B 201 ISABELLA STREET PITTSBURGH PA 15212 0100Exec. VP and CFOCommon Stock2004-01-204S0500036.18D334095DCommon Stock2004-01-204S0420036.22D329895DCommon Stock2004-01-204S080036.21D329095DCommon Stock8441IBy Company 401(k) PlanBrenda Hart (Assistant Secretary), by power of attorney2004-01-21