GSI GROUP INC CDA NEW

CUSIP: 36191C205 Class: CMN

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

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

Q1 2016
Shares 50,150 Value ($000) $710 Avg Close — Range —
Q4 2015
Shares 57,822 Value ($000) $788 Avg Close — Range —
Q3 2015
Shares 61,272 Value ($000) $780 Avg Close — Range —
Q2 2015
Shares 58,263 Value ($000) $876 Avg Close — Range —