X0303 4/A 2010-12-15 2010-12-17 0000883902 NCI BUILDING SYSTEMS INC NCS 0001356191 Dobbins Mark W 10943 NORTH SAM HOUSTON PARKWAY WEST HOUSTON TX 77064 0 1 0 0 COO Common Stock, $0.01 par value 2010-12-15 4 A 0 12500 12.00 A 148596 D Common Stock, $0.01 par value 2010-12-15 4 F 0 10272 12.00 D 138324 D Common Stock, $0.01 par value 13494 I NCI 401(k) Plan. Options to purchase common stock 12.00 2010-12-15 4 A 0 8334 0 A 2011-12-15 2020-12-15 Common stock, $.01 par value 8334 8334 D Holdings in 401(k) plan calculated as of December 10, 2010. Options vest in 25% increments on each of the first four anniversary dates of Dec. 15, 2010. Stock grant of December 15, 2010 incorrectly identified as an open market purchase in Form 4 filed on December 17, 2010. Todd R. Moore (by power of attorney) 2011-01-04