ORASURE TECHNOLOGIES INC

Ticker: OSUR CUSIP: 68554V108 Class: Common Stock

Casdin Capital, LLC's Holding History (CIK: 0001534261)

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

Q3 2018

Shares 525,000 Value ($000) $8,111 Avg Close $16.39 Range $14.41 - $17.76

Q2 2018

Shares 640,000 Value ($000) $10,541 Avg Close $16.89 Range $14.39 - $18.45

Q1 2018

Shares 240,000 Value ($000) $4,054 Avg Close $18.96 Range $16.15 - $22.22

Q4 2015

Shares 170,000 Value ($000) $1,095 Avg Close $5.71 Range $4.40 - $6.99

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	525,000	$8,111	$16.39	$14.41 - $17.76
Q2 2018	640,000	$10,541	$16.89	$14.39 - $18.45
Q1 2018	240,000	$4,054	$18.96	$16.15 - $22.22
Q4 2015	170,000	$1,095	$5.71	$4.40 - $6.99