PIONEER NAT RES CO

CUSIP: 72378710 Class: COM

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

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

Q2 2016
Shares 103,891 Value ($000) $15,709 Avg Close — Range —
Q2 2014
Shares 42,407 Value ($000) $9,746 Avg Close — Range —
Q1 2014
Shares 8,259 Value ($000) $1,546 Avg Close — Range —