RAPID7 INC

Ticker: RPD CUSIP: 753422104 Class: Common Stock

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

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

Q3 2015

Shares 298,910 Value ($000) $6,800 Avg Close $22.27 Range $16.50 - $27.45

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2015	298,910	$6,800	$22.27	$16.50 - $27.45