X0202 4 2005-09-13 0 0000874238 STERLING CONSTRUCTION CO INC STV 0001017999 DAVIES ROBERT M 2751 CENTERVILLE ROAD, SUITE 3131 WILMINGTON DE 19803 1 0 0 0 Common Stock 2005-09-13 4 M 0 132200 0.5 D 132200 D Common Stock 2005-09-13 4 S 0 2500 23.55 D 129700 D Common Stock 2005-09-13 4 S 0 6400 23.5 D 123300 D Common Stock 2005-09-13 4 S 0 10000 23.45 D 113300 D Common Stock 2005-09-13 4 S 0 1500 23.44 D 111800 D Common Stock 2005-09-13 4 S 0 900 23.43 D 110900 D Common Stock 2005-09-13 4 S 0 1000 23.42 D 109900 D Common Stock 2005-09-13 4 S 0 2000 23.41 D 107900 D Common Stock 2005-09-13 4 S 0 25200 23.4 D 82700 D Common Stock 2005-09-13 4 S 0 4400 23.39 D 78300 D Common Stock 2005-09-13 4 S 0 2100 23.38 D 76200 D Common Stock 2005-09-13 4 S 0 3500 23.37 D 72700 D Common Stock 2005-09-13 4 S 0 3700 23.36 D 69000 D Common Stock 2005-09-13 4 S 0 13800 23.35 D 55200 D Common Stock 2005-09-13 4 S 0 1700 23.34 D 53500 D Common Stock 2005-09-13 4 S 0 4200 23.33 D 49300 D Common Stock 2005-09-13 4 S 0 9000 23.32 D 40300 D Common Stock 2005-09-13 4 S 0 1700 23.31 D 38600 D Common Stock 2005-09-13 4 S 0 28900 23.3 D 9700 D Common Stock 2005-09-13 4 S 0 100 23.27 D 9600 D Common Stock 2005-09-13 4 S 0 2300 23.25 D 7300 D Common Stock 2005-09-13 4 S 0 1300 23.15 D 6000 D Common Stock 2005-09-13 4 S 0 6000 23.11 D 0 D Stock Option (right to buy) 0.5 2005-09-13 4 M 0 132200 0 D 2014-10-02 Common Stock 132200 104200 D 96,000 options were exercisable on each of December 18, 1998, December 18,1999 and December 18, 2000. Karen A. Stempinski, under POA 2005-09-14