OMNICELL INC

Ticker: OMCL CUSIP: 68213N109 Class: Common Stock

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

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

Q2 2013

Shares 44,847 Value ($000) $922 Avg Close $18.46 Range $17.01 - $20.88

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2013	44,847	$922	$18.46	$17.01 - $20.88