COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

Westend Capital Management, LLC's Holding History (CIK: 0001331997)

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

Q2 2016

Shares 7,832 Value ($000) $1,713 Avg Close $19.77 Range $17.45 - $21.88

Q1 2016

Shares 6,461 Value ($000) $1,216 Avg Close $17.71 Range $14.65 - $20.50

Q4 2015

Shares 6,336 Value ($000) $1,310 Avg Close $19.90 Range $16.80 - $21.35

Q3 2015

Shares 6,296 Value ($000) $1,164 Avg Close $19.15 Range $16.35 - $22.35

Q2 2015

Shares 6,162 Value ($000) $1,256 Avg Close $20.39 Range $19.23 - $21.67

Q1 2015

Shares 6,153 Value ($000) $1,233 Avg Close $18.88 Range $16.88 - $20.19

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2016	7,832	$1,713	$19.77	$17.45 - $21.88
Q1 2016	6,461	$1,216	$17.71	$14.65 - $20.50
Q4 2015	6,336	$1,310	$19.90	$16.80 - $21.35
Q3 2015	6,296	$1,164	$19.15	$16.35 - $22.35
Q2 2015	6,162	$1,256	$20.39	$19.23 - $21.67
Q1 2015	6,153	$1,233	$18.88	$16.88 - $20.19