PIONEER ENERGY SVCS CORP

CUSIP: 72366410 Class: COM

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q3 2015
Shares 10,600 Value ($000) $67 Avg Close — Range —
Q2 2015
Shares 10,600 Value ($000) $67 Avg Close — Range —
Q2 2014
Shares 153,880 Value ($000) $2,699 Avg Close — Range —
Q1 2014
Shares 24,215 Value ($000) $314 Avg Close — Range —
Q3 2013
Shares 46,530 Value ($000) $349 Avg Close — Range —
Q2 2013
Shares 22,668 Value ($000) $150 Avg Close — Range —