AAR CORP

Ticker: AIR CUSIP: 000361105 Class: COM

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

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

Q2 2018

Shares 37,767 Value ($000) $1,756 Avg Close $44.79 Range $41.24 - $48.24

Q1 2018

Shares 37,762 Value ($000) $1,666 Avg Close $40.72 Range $35.80 - $44.77

Q4 2017

Shares 42,758 Value ($000) $1,680 Avg Close $39.44 Range $36.93 - $43.16

Q3 2017

Shares 43,183 Value ($000) $1,631 Avg Close $35.43 Range $33.50 - $38.45

Q2 2017

Shares 49,891 Value ($000) $1,734 Avg Close $33.86 Range $31.73 - $35.60

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2018	37,767	$1,756	$44.79	$41.24 - $48.24
Q1 2018	37,762	$1,666	$40.72	$35.80 - $44.77
Q4 2017	42,758	$1,680	$39.44	$36.93 - $43.16
Q3 2017	43,183	$1,631	$35.43	$33.50 - $38.45
Q2 2017	49,891	$1,734	$33.86	$31.73 - $35.60