X0202 4 2007-02-12 0 0000874238 STERLING CONSTRUCTION CO INC STRL 0001017996 ABERNATHY JOHN D 1840 TURNBULL LAKES DR NEW SMYRNA BEACH FL 32168 1 0 0 0 Common stock 2007-02-12 4 M 0 10000 0.875 A 20203 D Common stock 2007-02-12 4 S 0 200 20.88 D 20003 D Common stock 2007-02-12 4 S 0 100 20.90 D 19903 D Common stock 2007-02-12 4 S 0 100 20.95 D 19803 D Common stock 2007-02-12 4 S 0 1092 20.97 D 18711 D Common stock 2007-02-12 4 S 0 216 20.98 D 18495 D Common stock 2007-02-12 4 S 0 92 20.99 D 18403 D Common stock 2007-02-12 4 S 0 500 21.00 D 17903 D Common stock 2007-02-12 4 S 0 100 21.01 D 17803 D Common stock 2007-02-12 4 S 0 100 21.02 D 17703 D Common stock 2007-02-12 4 S 0 100 21.03 D 17603 D Common stock 2007-02-12 4 S 0 100 21.05 D 17503 D Common stock 2007-02-12 4 S 0 200 21.06 D 17303 D Common stock 2007-02-12 4 S 0 100 21.10 D 17203 D Common stock 2007-02-12 4 S 0 200 21.15 D 17003 D Common stock 2007-02-12 4 S 0 100 21.16 D 16903 D Common stock 2007-02-12 4 S 0 100 21.17 D 16803 D Common stock 2007-02-12 4 S 0 1700 21.20 D 15103 D Common stock 2007-02-12 4 S 0 500 21.21 D 14603 D Common stock 2007-02-12 4 S 0 300 21.23 D 14303 D Common stock 2007-02-12 4 S 0 500 21.25 D 13803 D Common stock 2007-02-12 4 S 0 100 21.26 D 13703 D Common stock 2007-02-12 4 S 0 200 21.27 D 13503 D Common stock 2007-02-12 4 S 0 200 21.29 D 13303 D Common stock 2007-02-12 4 S 0 300 21.30 D 13003 D Common stock 2007-02-12 4 S 0 100 21.31 D 12903 D Common stock 2007-02-12 4 S 0 1100 21.50 D 11803 D Common stock 2007-02-12 4 S 0 1100 21.51 D 10703 D Common stock 2007-02-12 4 S 0 300 21.52 D 10403 D Stock Option (right to buy) 0.875 2007-02-12 4 M 0 10000 0 D 1998-01-13 2008-01-13 Common stock 10000 15000 D These shares were sold pursuant to a 10b5-1 trading plan adopted by the Reporting Person on June 5, 2006 Karen A. Stempinski, under POA 2007-02-13