ORASURE TECHNOLOGIES INC

Ticker: OSUR CUSIP: 68554V108 Class: Common Stock

OBERWEIS ASSET MANAGEMENT INC/'s Holding History (CIK: 0000937886)

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

Q1 2018

Shares 465,578 Value ($000) $7,864 Avg Close $18.96 Range $16.15 - $22.22

Q4 2017

Shares 526,610 Value ($000) $9,932 Avg Close $18.11 Range $12.86 - $23.01

Q3 2017

Shares 472,540 Value ($000) $10,632 Avg Close $20.12 Range $17.06 - $22.79

Q2 2017

Shares 479,970 Value ($000) $8,284 Avg Close $14.40 Range $12.03 - $17.96

Q1 2017

Shares 79,500 Value ($000) $1,028 Avg Close $10.34 Range $8.39 - $12.97

Q2 2016

Shares 55,000 Value ($000) $325 Avg Close $7.11 Range $5.81 - $7.99

Q1 2016

Shares 55,000 Value ($000) $398 Avg Close $6.36 Range $5.09 - $7.39

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	465,578	$7,864	$18.96	$16.15 - $22.22
Q4 2017	526,610	$9,932	$18.11	$12.86 - $23.01
Q3 2017	472,540	$10,632	$20.12	$17.06 - $22.79
Q2 2017	479,970	$8,284	$14.40	$12.03 - $17.96
Q1 2017	79,500	$1,028	$10.34	$8.39 - $12.97
Q2 2016	55,000	$325	$7.11	$5.81 - $7.99
Q1 2016	55,000	$398	$6.36	$5.09 - $7.39