OPOWER INC

CUSIP: 68375Y109 Class: COMM STK

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

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

Q4 2014
Shares 61,514 Value ($000) $875 Avg Close — Range —
Q3 2014
Shares 71,472 Value ($000) $1,348 Avg Close — Range —