X0306 4 2016-11-09 0 0000874238 STERLING CONSTRUCTION CO INC STRL 0001366918 BALLSCHMIEDE RONALD A 1800 HUGHES LANDING BLVD. THE WOODLANDS TX 77380 0 1 0 0 EVP & CFO Common Stock 2015-11-09 4 F 0 13675 7.11 D 86325 D These shares were part of a restricted stock award, a portion of which was released from restrictions on November 9, 2016. The shares were retained by the Company at the election of the Reporting Person pursuant to a procedure approved by the Compensation Committee of the Board of Directors to satisfy the Company's tax withholding requirements (based on the closing price of the Company's common stock on the release date) arising from the release of restrictions as permitted by the plan pursuant to which the restricted stock award was made. Of these shares,50,000 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances. Roger M. Barzun under a Power of Attorney 2016-11-16