AMETEK INC

Ticker: AME CUSIP: 031100100 Class: COM

ESSEX INVESTMENT MANAGEMENT CO LLC's Holding History (CIK: 0000201772)

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

Q4 2013

Shares 11,339 Value ($000) $597 Avg Close $44.53 Range $40.01 - $48.81

Q3 2013

Shares 11,549 Value ($000) $531 Avg Close $41.48 Range $38.88 - $44.20

Q2 2013

Shares 10,223 Value ($000) $432 Avg Close $38.40 Range $36.33 - $40.43

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2013	11,339	$597	$44.53	$40.01 - $48.81
Q3 2013	11,549	$531	$41.48	$38.88 - $44.20
Q2 2013	10,223	$432	$38.40	$36.33 - $40.43