SUMMIT MATLS INC

CUSIP: 86614U100 Class: Common Stock

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

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

Q3 2019
Shares 1,848,819 Value ($000) $41,044 Avg Close — Range —
Q2 2019
Shares 2,468,009 Value ($000) $47,509 Avg Close — Range —
Q1 2019
Shares 2,824,928 Value ($000) $44,832 Avg Close — Range —
Q4 2018
Shares 2,645,568 Value ($000) $32,805 Avg Close — Range —
Q3 2018
Shares 2,335,258 Value ($000) $42,455 Avg Close — Range —
Q2 2018
Shares 2,406,459 Value ($000) $63,170 Avg Close — Range —
Q1 2018
Shares 2,959,310 Value ($000) $89,608 Avg Close — Range —
Q4 2017
Shares 3,256,164 Value ($000) $102,374 Avg Close — Range —
Q3 2017
Shares 3,344,408 Value ($000) $107,121 Avg Close — Range —
Q2 2017
Shares 2,989,486 Value ($000) $86,306 Avg Close — Range —
Q1 2017
Shares 1,418,683 Value ($000) $35,056 Avg Close — Range —
Q4 2016
Shares 1,538,511 Value ($000) $36,601 Avg Close — Range —
Q3 2016
Shares 1,202,905 Value ($000) $22,314 Avg Close — Range —
Q2 2016
Shares 1,077,190 Value ($000) $22,039 Avg Close — Range —