QUEST DIAGNOSTICS INC

Ticker: DGX CUSIP: 74834L100 Class: COMMON STOCK

True North Advisors, LLC's Holding History (CIK: 0001634556)

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

Q4 2025

Shares 1,568 Value ($000) $272 Avg Close $182.07 Range $173.39 - $197.55

Q3 2025

Shares 1,554 Value ($000) $296 Avg Close $176.64 Range $163.92 - $190.64

Q2 2025

Shares 1,493 Value ($000) $268 Avg Close $172.09 Range $155.80 - $180.75

Q1 2025

Shares 1,488 Value ($000) $252 Avg Close $161.93 Range $146.66 - $176.41

Q4 2024

Shares 1,488 Value ($000) $224 Avg Close $152.61 Range $143.46 - $162.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,568	$272	$182.07	$173.39 - $197.55
Q3 2025	1,554	$296	$176.64	$163.92 - $190.64
Q2 2025	1,493	$268	$172.09	$155.80 - $180.75
Q1 2025	1,488	$252	$161.93	$146.66 - $176.41
Q4 2024	1,488	$224	$152.61	$143.46 - $162.25