BUILDERS FIRSTSOURCE INC

Ticker: BLDR CUSIP: 12008R107 Class: EQTY

LONESTAR CAPITAL MANAGEMENT LLC's Holding History (CIK: 0001317410)

Note: Option positions (PUT/CALL) are excluded.

Q3 2018

Shares 915,772 Value ($000) $13,444 Avg Close $16.94 Range $14.65 - $18.86

Q2 2018

Shares 1,000,000 Value ($000) $18,290 Avg Close $19.12 Range $17.74 - $20.79

Q1 2018

Shares 950,000 Value ($000) $18,848 Avg Close $21.18 Range $19.15 - $23.28

Q4 2017

Shares 900,000 Value ($000) $19,611 Avg Close $18.96 Range $16.52 - $22.08

Q3 2017

Shares 1,000,000 Value ($000) $17,990 Avg Close $16.13 Range $14.39 - $18.08

Q2 2017

Shares 205,000 Value ($000) $3,141 Avg Close $14.94 Range $13.33 - $16.50

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	915,772	$13,444	$16.94	$14.65 - $18.86
Q2 2018	1,000,000	$18,290	$19.12	$17.74 - $20.79
Q1 2018	950,000	$18,848	$21.18	$19.15 - $23.28
Q4 2017	900,000	$19,611	$18.96	$16.52 - $22.08
Q3 2017	1,000,000	$17,990	$16.13	$14.39 - $18.08
Q2 2017	205,000	$3,141	$14.94	$13.33 - $16.50