CDW CORP

Ticker: CDW CUSIP: 12514G108 Class: COM

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

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

Q3 2016
Shares 20,350 Value ($000) $931 Avg Close $39.25 Range $35.02 - $42.57
Q2 2016
Shares 20,731 Value ($000) $831 Avg Close $37.03 Range $33.71 - $38.50
Q1 2016
Shares 20,733 Value ($000) $860 Avg Close $34.71 Range $27.03 - $37.36
Q4 2015
Shares 47,747 Value ($000) $2,007 Avg Close $38.66 Range $35.55 - $41.63
Q3 2015
Shares 97,162 Value ($000) $3,970 Avg Close $33.56 Range $29.23 - $37.25
Q2 2015
Shares 99,601 Value ($000) $3,414 Avg Close $33.01 Range $30.28 - $34.76
Q1 2015
Shares 99,541 Value ($000) $3,707 Avg Close $32.16 Range $29.30 - $33.98
Q4 2014
Shares 102,871 Value ($000) $3,618 Avg Close $28.50 Range $24.29 - $31.84
Q3 2014
Shares 100,396 Value ($000) $3,117 Avg Close $27.82 Range $26.48 - $29.76
Q2 2014
Shares 65,138 Value ($000) $2,077 Avg Close $25.78 Range $23.45 - $28.50
Q1 2014
Shares 65,572 Value ($000) $1,799 Avg Close $21.69 Range $19.92 - $24.17
Q4 2013
Shares 71,640 Value ($000) $1,674 Avg Close $19.65 Range $17.97 - $20.65
Q3 2013
Shares 72,233 Value ($000) $1,649 Avg Close $19.33 Range $15.97 - $21.44