BUILDERS FIRSTSOURCE INC

Ticker: BLDR CUSIP: 12008R107 Class: EQTY

Portolan Capital Management, LLC's Holding History (CIK: 0001350290)

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

Q3 2015
Shares 78,478 Value ($000) $995 Avg Close $14.20 Range $11.98 - $16.69
Q2 2015
Shares 511,440 Value ($000) $6,567 Avg Close $12.20 Range $6.54 - $14.24
Q2 2014
Shares 290,432 Value ($000) $2,172 Avg Close $7.79 Range $6.92 - $9.40
Q1 2014
Shares 378,470 Value ($000) $3,444 Avg Close $8.12 Range $7.14 - $9.16
Q4 2013
Shares 460,052 Value ($000) $3,280 Avg Close $6.79 Range $5.55 - $7.94
Q3 2013
Shares 743,864 Value ($000) $4,374 Avg Close $5.97 Range $5.15 - $6.94
Q2 2013
Shares 721,912 Value ($000) $4,317 Avg Close $6.26 Range $5.00 - $7.33