COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

Washington Trust Bank's Holding History (CIK: 0000861787)

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

Q1 2019

Shares 52 Value ($000) $24 Avg Close $41.31 Range $32.51 - $48.49

Q4 2018

Shares 52 Value ($000) $18 Avg Close $36.53 Range $31.59 - $42.50

Q3 2018

Shares 52 Value ($000) $22 Avg Close $42.74 Range $39.71 - $44.84

Q4 2016

Shares 5 Value ($000) $1 Avg Close $19.64 Range $17.92 - $22.44

Q3 2016

Shares 5 Value ($000) $1 Avg Close $21.29 Range $20.25 - $22.48

Q2 2016

Shares 10 Value ($000) $2 Avg Close $19.77 Range $17.45 - $21.88

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	52	$24	$41.31	$32.51 - $48.49
Q4 2018	52	$18	$36.53	$31.59 - $42.50
Q3 2018	52	$22	$42.74	$39.71 - $44.84
Q4 2016	5	$1	$19.64	$17.92 - $22.44
Q3 2016	5	$1	$21.29	$20.25 - $22.48
Q2 2016	10	$2	$19.77	$17.45 - $21.88