COSTAR GROUP INC

CUSIP: 22160N10 Class: COM

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

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

Q3 2016
Shares 4,200 Value ($000) $909 Avg Close — Range —
Q4 2015
Shares 3,884 Value ($000) $803 Avg Close — Range —
Q3 2015
Shares 19,481 Value ($000) $3,921 Avg Close — Range —
Q2 2015
Shares 19,481 Value ($000) $3,921 Avg Close — Range —
Q1 2014
Shares 27,857 Value ($000) $5,202 Avg Close — Range —
Q4 2013
Shares 23,457 Value ($000) $4,330 Avg Close — Range —
Q3 2013
Shares 18,328 Value ($000) $3,077 Avg Close — Range —
Q2 2013
Shares 35,078 Value ($000) $4,528 Avg Close — Range —