COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

Mount Lucas Management LP's Holding History (CIK: 0001185072)

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

Q3 2014

Shares 1,009 Value ($000) $157 Avg Close $14.90 Range $13.85 - $16.58

Q2 2014

Shares 923 Value ($000) $146 Avg Close $16.20 Range $14.70 - $19.34

Q1 2014

Shares 1,208 Value ($000) $226 Avg Close $18.86 Range $16.38 - $21.82

Q4 2013

Shares 1,245 Value ($000) $230 Avg Close $17.69 Range $16.07 - $18.84

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2014	1,009	$157	$14.90	$13.85 - $16.58
Q2 2014	923	$146	$16.20	$14.70 - $19.34
Q1 2014	1,208	$226	$18.86	$16.38 - $21.82
Q4 2013	1,245	$230	$17.69	$16.07 - $18.84