CRA INTL INC

Ticker: CRAI CUSIP: 12618T105 Class: Common Stock

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

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

Q3 2015

Shares 37,506 Value ($000) $809 Avg Close $20.57 Range $18.34 - $24.82

Q2 2015

Shares 35,671 Value ($000) $994 Avg Close $25.54 Range $22.59 - $28.12

Q1 2015

Shares 36,421 Value ($000) $1,133 Avg Close $26.49 Range $24.52 - $28.33

Q4 2014

Shares 36,686 Value ($000) $1,112 Avg Close $25.66 Range $21.50 - $28.35

Q3 2014

Shares 42,525 Value ($000) $1,081 Avg Close $22.24 Range $20.10 - $24.86

Q2 2014

Shares 45,266 Value ($000) $1,043 Avg Close $18.89 Range $16.66 - $20.76

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2015	37,506	$809	$20.57	$18.34 - $24.82
Q2 2015	35,671	$994	$25.54	$22.59 - $28.12
Q1 2015	36,421	$1,133	$26.49	$24.52 - $28.33
Q4 2014	36,686	$1,112	$25.66	$21.50 - $28.35
Q3 2014	42,525	$1,081	$22.24	$20.10 - $24.86
Q2 2014	45,266	$1,043	$18.89	$16.66 - $20.76