BUILDERS FIRSTSOURCE INC

Ticker: BLDR CUSIP: 12008R107 Class: EQTY

CenterStar Asset Management, LLC's Holding History (CIK: 0001722053)

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

Q2 2018

Shares 1,288 Value ($000) $23 Avg Close $19.12 Range $17.74 - $20.79

Q1 2018

Shares 4,683 Value ($000) $92 Avg Close $21.18 Range $19.15 - $23.28

Q4 2017

Shares 46 Value ($000) $1 Avg Close $18.96 Range $16.52 - $22.08

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2018	1,288	$23	$19.12	$17.74 - $20.79
Q1 2018	4,683	$92	$21.18	$19.15 - $23.28
Q4 2017	46	$1	$18.96	$16.52 - $22.08