CALGON CARBON CORP

CUSIP: 129603106 Class: COM

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

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

Q4 2015
Shares 43,901 Value ($000) $757 Avg Close — Range —
Q3 2015
Shares 42,399 Value ($000) $661 Avg Close — Range —
Q2 2015
Shares 39,513 Value ($000) $766 Avg Close — Range —
Q1 2015
Shares 34,763 Value ($000) $732 Avg Close — Range —
Q4 2014
Shares 25,913 Value ($000) $538 Avg Close — Range —
Q3 2014
Shares 23,691 Value ($000) $459 Avg Close — Range —
Q2 2014
Shares 23,271 Value ($000) $520 Avg Close — Range —
Q1 2014
Shares 14,108 Value ($000) $308 Avg Close — Range —
Q4 2013
Shares 13,244 Value ($000) $272 Avg Close — Range —
Q3 2013
Shares 10,549 Value ($000) $200 Avg Close — Range —
Q2 2013
Shares 10,684 Value ($000) $178 Avg Close — Range —