GRAINGER W W INC

Ticker: GWW CUSIP: 384802104 Class: COM

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

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

Q2 2015

Shares 49 Value ($000) $12 Avg Close $204.21 Range $191.55 - $212.59

Q1 2015

Shares 49 Value ($000) $12 Avg Close $199.99 Range $191.51 - $214.86

Q4 2014

Shares 120 Value ($000) $31 Avg Close $205.91 Range $186.43 - $218.71

Q3 2014

Shares 110 Value ($000) $28 Avg Close $203.85 Range $191.62 - $212.51

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2015	49	$12	$204.21	$191.55 - $212.59
Q1 2015	49	$12	$199.99	$191.51 - $214.86
Q4 2014	120	$31	$205.91	$186.43 - $218.71
Q3 2014	110	$28	$203.85	$191.62 - $212.51