QUEST DIAGNOSTICS INC

Ticker: DGX CUSIP: 74834L100 Class: COMMON STOCK

Capital World Investors's Holding History (CIK: 0001422849)

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

Q1 2014

Shares 1,465,695 Value ($000) $84,893 Avg Close $42.22 Range $39.75 - $47.66

Q4 2013

Shares 6,715,695 Value ($000) $359,558 Avg Close $46.46 Range $41.12 - $50.21

Q3 2013

Shares 10,515,000 Value ($000) $649,722 Avg Close $46.67 Range $44.29 - $48.97

Q2 2013

Shares 14,345,000 Value ($000) $869,737 Avg Close $46.22 Range $42.87 - $49.18

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2014	1,465,695	$84,893	$42.22	$39.75 - $47.66
Q4 2013	6,715,695	$359,558	$46.46	$41.12 - $50.21
Q3 2013	10,515,000	$649,722	$46.67	$44.29 - $48.97
Q2 2013	14,345,000	$869,737	$46.22	$42.87 - $49.18