AMERICAN WTR WKS CO INC NEW

Ticker: AWK CUSIP: 030420103 Class: COM

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's Holding History (CIK: 0001644956)

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

Q2 2016

Shares 9,337 Value ($000) $789 Avg Close $61.85 Range $56.44 - $70.43

Q1 2016

Shares 9,330 Value ($000) $643 Avg Close $53.83 Range $48.57 - $58.11

Q4 2015

Shares 12,710 Value ($000) $759 Avg Close $47.42 Range $44.78 - $50.47

Q3 2015

Shares 25,178 Value ($000) $1,387 Avg Close $42.73 Range $39.51 - $45.60

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2016	9,337	$789	$61.85	$56.44 - $70.43
Q1 2016	9,330	$643	$53.83	$48.57 - $58.11
Q4 2015	12,710	$759	$47.42	$44.78 - $50.47
Q3 2015	25,178	$1,387	$42.73	$39.51 - $45.60