QUEST DIAGNOSTICS INC

Ticker: DGX CUSIP: 74834L100 Class: COMMON STOCK

Douglass Winthrop Advisors, LLC's Holding History (CIK: 0001308527)

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

Q3 2015

Shares 3,350 Value ($000) $206 Avg Close $56.82 Range $48.84 - $61.18

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2015	3,350	$206	$56.82	$48.84 - $61.18