X0306 4 2016-11-14 0 0001316835 Builders FirstSource, Inc. BLDR 0001689573 Jackson Peter M. 2001 BRYAN ST., SUITE 1600 DALLAS TX 75201 0 1 0 0 SVP & CFO Common Stock, par value $0.01 per share 2016-11-14 4 A 0 33686 0.00 A 33686 D Reflects the acquisition of restricted stock units pursuant to the Corporation's 2014 Incentive Plan. The restricted stock units fully vest on November 14, 2017 and entitle the reporting person to one share of common stock for each restricted stock unit that vests. /s/ Peter M. Jackson 2016-11-15