WEST CORP

CUSIP: 952355204 Class: COM

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q3 2017
Shares 1,392,030 Value ($000) $32,671 Avg Close — Range —
Q2 2017
Shares 1,395,819 Value ($000) $32,551 Avg Close — Range —
Q1 2017
Shares 1,357,133 Value ($000) $33,141 Avg Close — Range —
Q4 2016
Shares 1,306,811 Value ($000) $32,358 Avg Close — Range —
Q3 2016
Shares 1,203,501 Value ($000) $26,573 Avg Close — Range —
Q2 2016
Shares 1,148,052 Value ($000) $22,570 Avg Close — Range —
Q1 2016
Shares 989,581 Value ($000) $22,581 Avg Close — Range —
Q4 2015
Shares 921,111 Value ($000) $19,870 Avg Close — Range —
Q3 2015
Shares 868,601 Value ($000) $19,457 Avg Close — Range —
Q2 2015
Shares 742,893 Value ($000) $22,362 Avg Close — Range —
Q1 2015
Shares 529,185 Value ($000) $17,846 Avg Close — Range —
Q4 2014
Shares 347,430 Value ($000) $11,466 Avg Close — Range —
Q3 2014
Shares 214,594 Value ($000) $6,323 Avg Close — Range —
Q2 2014
Shares 101,472 Value ($000) $2,719 Avg Close — Range —