AMETEK INC

Ticker: AME CUSIP: 031100100 Class: COM

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

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

Q1 2017

Shares 4,600 Value ($000) $249 Avg Close $49.70 Range $45.73 - $52.26

Q4 2016

Shares 4,600 Value ($000) $224 Avg Close $44.57 Range $41.35 - $48.29

Q1 2016

Shares 1,439,407 Value ($000) $71,942 Avg Close $44.56 Range $40.03 - $49.49

Q4 2015

Shares 3,269,989 Value ($000) $175,239 Avg Close $51.22 Range $47.58 - $53.21

Q3 2015

Shares 3,365,111 Value ($000) $176,063 Avg Close $50.27 Range $47.11 - $53.74

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2017	4,600	$249	$49.70	$45.73 - $52.26
Q4 2016	4,600	$224	$44.57	$41.35 - $48.29
Q1 2016	1,439,407	$71,942	$44.56	$40.03 - $49.49
Q4 2015	3,269,989	$175,239	$51.22	$47.58 - $53.21
Q3 2015	3,365,111	$176,063	$50.27	$47.11 - $53.74