QUEST DIAGNOSTICS INC

Ticker: DGX CUSIP: 74834L100 Class: COMMON STOCK

ARDSLEY ADVISORY PARTNERS LP's Holding History (CIK: 0000900529)

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

Q3 2019

Shares 10,000 Value ($000) $1,070 Avg Close $90.53 Range $85.50 - $95.23

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2019	10,000	$1,070	$90.53	$85.50 - $95.23