QUEST DIAGNOSTICS INC

Ticker: DGX CUSIP: 74834L100 Class: COMMON STOCK

TCW GROUP INC's Holding History (CIK: 0000850401)

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

Q4 2025

Shares 28,708 Value ($000) $4,982 Avg Close $182.07 Range $173.39 - $197.55

Q3 2025

Shares 26,577 Value ($000) $5,065 Avg Close $176.64 Range $163.92 - $190.64

Q2 2025

Shares 19,853 Value ($000) $3,566 Avg Close $172.09 Range $155.80 - $180.75

Q1 2025

Shares 15,382 Value ($000) $2,603 Avg Close $161.93 Range $146.66 - $176.41

Q2 2017

Shares 14,749 Value ($000) $1,639 Avg Close $89.16 Range $81.72 - $94.33

Q1 2017

Shares 243,353 Value ($000) $23,894 Avg Close $80.00 Range $75.65 - $83.94

Q4 2016

Shares 330,129 Value ($000) $30,339 Avg Close $71.99 Range $66.09 - $78.16

Q3 2016

Shares 342,608 Value ($000) $28,995 Avg Close $69.82 Range $66.73 - $72.20

Q2 2016

Shares 358,994 Value ($000) $29,225 Avg Close $62.99 Range $58.34 - $67.34

Q1 2016

Shares 377,838 Value ($000) $26,997 Avg Close $55.15 Range $49.08 - $59.76

Q4 2015

Shares 375,810 Value ($000) $26,735 Avg Close $54.99 Range $49.21 - $59.25

Q3 2015

Shares 352,881 Value ($000) $21,691 Avg Close $56.82 Range $48.84 - $61.18

Q2 2015

Shares 381,750 Value ($000) $27,685 Avg Close $59.70 Range $56.18 - $71.98

Q1 2015

Shares 500,719 Value ($000) $38,480 Avg Close $57.60 Range $52.93 - $63.03

Q4 2014

Shares 537,123 Value ($000) $36,020 Avg Close $50.52 Range $45.06 - $54.86

Q3 2014

Shares 500,738 Value ($000) $30,385 Avg Close $49.06 Range $46.54 - $51.28

Q2 2014

Shares 471,969 Value ($000) $27,700 Avg Close $46.37 Range $43.49 - $49.44

Q1 2014

Shares 405,125 Value ($000) $23,464 Avg Close $42.22 Range $39.75 - $47.66

Q4 2013

Shares 234,350 Value ($000) $12,548 Avg Close $46.46 Range $41.12 - $50.21

Q3 2013

Shares 75,000 Value ($000) $4,634 Avg Close $46.67 Range $44.29 - $48.97

Q2 2013

Shares 77,550 Value ($000) $4,702 Avg Close $46.22 Range $42.87 - $49.18

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	28,708	$4,982	$182.07	$173.39 - $197.55
Q3 2025	26,577	$5,065	$176.64	$163.92 - $190.64
Q2 2025	19,853	$3,566	$172.09	$155.80 - $180.75
Q1 2025	15,382	$2,603	$161.93	$146.66 - $176.41
Q2 2017	14,749	$1,639	$89.16	$81.72 - $94.33
Q1 2017	243,353	$23,894	$80.00	$75.65 - $83.94
Q4 2016	330,129	$30,339	$71.99	$66.09 - $78.16
Q3 2016	342,608	$28,995	$69.82	$66.73 - $72.20
Q2 2016	358,994	$29,225	$62.99	$58.34 - $67.34
Q1 2016	377,838	$26,997	$55.15	$49.08 - $59.76
Q4 2015	375,810	$26,735	$54.99	$49.21 - $59.25
Q3 2015	352,881	$21,691	$56.82	$48.84 - $61.18
Q2 2015	381,750	$27,685	$59.70	$56.18 - $71.98
Q1 2015	500,719	$38,480	$57.60	$52.93 - $63.03
Q4 2014	537,123	$36,020	$50.52	$45.06 - $54.86
Q3 2014	500,738	$30,385	$49.06	$46.54 - $51.28
Q2 2014	471,969	$27,700	$46.37	$43.49 - $49.44
Q1 2014	405,125	$23,464	$42.22	$39.75 - $47.66
Q4 2013	234,350	$12,548	$46.46	$41.12 - $50.21
Q3 2013	75,000	$4,634	$46.67	$44.29 - $48.97
Q2 2013	77,550	$4,702	$46.22	$42.87 - $49.18