X0303 4 2009-09-25 0 0000874238 STERLING CONSTRUCTION CO INC STRL 0001205460 MANNING PATRICK T 20810 FERNBUSH LANE HOUSTON TX 77073 1 1 0 0 Chief Executive Officer Common Stock 2009-09-25 4 S 0 10000 17.15 D 54527 D These shares were sold as a result of a margin call by the Reporting Person's broker. The shares were sold at prices ranging from $17.10 to $17.27 per share. This is the weighted average price per share at which the shares were sold. Upon request, the Reporting Person will provide to the staff of the SEC, to the issuer, or to a security holder the full information regarding the number of shares sold at each separate price. /s/ Roger M. Barzun under a Power of Attorney 2009-09-28