QUEST DIAGNOSTICS INC

Ticker: DGX CUSIP: 74834L100 Class: COMMON STOCK

Empirical Financial Services, LLC d.b.a. Empirical Wealth Management's Holding History (CIK: 0001510434)

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

Q4 2025

Shares 3,659 Value ($000) $635 Avg Close $182.07 Range $173.39 - $197.55

Q3 2025

Shares 1,481 Value ($000) $282 Avg Close $176.64 Range $163.92 - $190.64

Q4 2021

Shares 1,935 Value ($000) $335 Avg Close $140.46 Range $128.33 - $160.79

Q3 2021

Shares 2,609 Value ($000) $379 Avg Close $134.48 Range $120.64 - $147.59

Q2 2021

Shares 2,009 Value ($000) $265 Avg Close $119.77 Range $115.00 - $130.65

Q1 2021

Shares 1,567 Value ($000) $201 Avg Close $112.12 Range $103.22 - $122.67

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	3,659	$635	$182.07	$173.39 - $197.55
Q3 2025	1,481	$282	$176.64	$163.92 - $190.64
Q4 2021	1,935	$335	$140.46	$128.33 - $160.79
Q3 2021	2,609	$379	$134.48	$120.64 - $147.59
Q2 2021	2,009	$265	$119.77	$115.00 - $130.65
Q1 2021	1,567	$201	$112.12	$103.22 - $122.67