BUILDERS FIRSTSOURCE INC

Ticker: BLDR CUSIP: 12008R107 Class: EQTY

NEXT CENTURY GROWTH INVESTORS LLC's Holding History (CIK: 0001134007)

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

Q3 2014

Shares 133,500 Value ($000) $727 Avg Close $6.51 Range $5.10 - $7.92

Q2 2014

Shares 693,492 Value ($000) $5,187 Avg Close $7.79 Range $6.92 - $9.40

Q1 2014

Shares 803,048 Value ($000) $7,315 Avg Close $8.12 Range $7.14 - $9.16

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2014	133,500	$727	$6.51	$5.10 - $7.92
Q2 2014	693,492	$5,187	$7.79	$6.92 - $9.40
Q1 2014	803,048	$7,315	$8.12	$7.14 - $9.16