BUILDERS FIRSTSOURCE INC

Ticker: BLDR CUSIP: 12008R107 Class: EQTY

LORING WOLCOTT & COOLIDGE FIDUCIARY ADVISORS LLP/MA's Holding History (CIK: 0000932974)

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

Q3 2018

Shares 9,025 Value ($000) $132 Avg Close $16.94 Range $14.65 - $18.86

Q2 2018

Shares 9,025 Value ($000) $165 Avg Close $19.12 Range $17.74 - $20.79

Q1 2018

Shares 9,025 Value ($000) $179 Avg Close $21.18 Range $19.15 - $23.28

Q4 2017

Shares 12,425 Value ($000) $271 Avg Close $18.96 Range $16.52 - $22.08

Q3 2017

Shares 12,425 Value ($000) $224 Avg Close $16.13 Range $14.39 - $18.08

Q2 2017

Shares 12,425 Value ($000) $195 Avg Close $14.94 Range $13.33 - $16.50

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	9,025	$132	$16.94	$14.65 - $18.86
Q2 2018	9,025	$165	$19.12	$17.74 - $20.79
Q1 2018	9,025	$179	$21.18	$19.15 - $23.28
Q4 2017	12,425	$271	$18.96	$16.52 - $22.08
Q3 2017	12,425	$224	$16.13	$14.39 - $18.08
Q2 2017	12,425	$195	$14.94	$13.33 - $16.50