X0201 4 2003-08-08 0 0001001385 NORTHWEST PIPE CO NWPX 0001249914 MITCHELL TERRENCE R 200 SW MARKET STREET SUITE 1800 PORTLAND OR 97201 0 1 0 0 Senior VP common stock 2003-08-08 4 M 0 500 1 A 500 D common stock 2003-08-08 4 S 0 500 15.95 D 0 D common stock 2003-08-08 4 M 0 300 1 A 300 D common stock 2003-08-08 4 S 0 300 15.85 D 0 D common stock 2003-08-11 4 M 0 1000 1 A 1000 D common stock 2003-08-11 4 S 0 1000 15.9 D 0 D common stock 2003-08-11 4 M 0 500 1 A 500 D common stock 2003-08-11 4 S 0 500 15.45 D 0 D common stock 2003-08-11 4 M 0 500 1 A 500 D common stock 2003-08-11 4 S 0 500 15.65 D 0 D common stock 2003-08-11 4 M 0 48 1 A 48 D common stock 2003-08-11 4 S 0 48 15.69 D 0 D common stock 2003-08-12 4 M 0 300 1 A 300 D common stock 2003-08-12 4 S 0 300 15.8 D 0 D Incentive Stock Option (right to buy) 1 2003-08-08 4 M 0 500 0 D 1994-05-01 2004-05-01 common stock 500 0 D Incentive Stock Option (right to buy) 1 2003-08-08 4 M 0 300 0 D 1994-05-01 2004-05-01 common stock 300 0 D Incentive Stock Option (right to buy) 1 2003-08-11 4 M 0 1000 0 D 1994-05-01 2004-05-01 common stock 1000 0 D Incentive Stock Option (right to buy) 1 2003-08-11 4 M 0 500 0 D 1994-05-01 2004-05-01 common stock 500 0 D Incentive Stock Option (right to buy) 1 2003-08-11 4 M 0 500 0 D 1994-05-01 2004-05-01 common stock 500 0 D incentive stock option (right to buy) 1 2003-08-11 4 M 0 48 0 D 1994-05-01 2004-05-01 common stock 48 0 D Incentive Stock Option (right to buy) 1 2003-08-12 4 M 0 300 0 D 1994-05-01 2004-05-01 common stock 300 0 D TTerrence R. Mitchell 2003-08-12