GREENHUNTER RES INC

CUSIP: 39530A104 Class: COM

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

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

Q4 2014
Shares 15,662 Value ($000) $11 Avg Close — Range —
Q3 2014
Shares 17,560 Value ($000) $27 Avg Close — Range —
Q2 2014
Shares 39,454 Value ($000) $78 Avg Close — Range —
Q1 2014
Shares 39,454 Value ($000) $38 Avg Close — Range —
Q4 2013
Shares 39,454 Value ($000) $46 Avg Close — Range —