ORASURE TECHNOLOGIES INC

Ticker: OSUR CUSIP: 68554V108 Class: Common Stock

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

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

Q1 2015

Shares 109,209 Value ($000) $714 Avg Close $8.31 Range $6.10 - $10.62

Q4 2014

Shares 234,521 Value ($000) $2,378 Avg Close $8.96 Range $6.93 - $10.93

Q3 2014

Shares 177,449 Value ($000) $1,281 Avg Close $8.00 Range $7.06 - $8.94

Q2 2014

Shares 135,664 Value ($000) $1,168 Avg Close $7.01 Range $5.78 - $9.00

Q1 2014

Shares 162,972 Value ($000) $1,299 Avg Close $6.99 Range $5.34 - $8.60

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2015	109,209	$714	$8.31	$6.10 - $10.62
Q4 2014	234,521	$2,378	$8.96	$6.93 - $10.93
Q3 2014	177,449	$1,281	$8.00	$7.06 - $8.94
Q2 2014	135,664	$1,168	$7.01	$5.78 - $9.00
Q1 2014	162,972	$1,299	$6.99	$5.34 - $8.60