QUEST DIAGNOSTICS INC

Ticker: DGX CUSIP: 74834L100 Class: COMMON STOCK

CAISSE DE DEPOT ET PLACEMENT DU QUEBEC's Holding History (CIK: 0000898286)

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

Q3 2025

Shares 1,396 Value ($000) $266 Avg Close $176.64 Range $163.92 - $190.64

Q2 2025

Shares 1,425 Value ($000) $256 Avg Close $172.09 Range $155.80 - $180.75

Q1 2025

Shares 1,360 Value ($000) $230 Avg Close $161.93 Range $146.66 - $176.41

Q4 2024

Shares 86,022 Value ($000) $12,977 Avg Close $152.61 Range $143.46 - $162.25

Q3 2024

Shares 1,757 Value ($000) $273 Avg Close $145.81 Range $132.40 - $155.63

Q2 2024

Shares 78,480 Value ($000) $10,742 Avg Close $132.98 Range $121.83 - $141.45

Q1 2024

Shares 19,832 Value ($000) $2,640 Avg Close $125.21 Range $118.84 - $138.00

Q4 2023

Shares 26,898 Value ($000) $3,709 Avg Close $126.28 Range $114.23 - $136.42

Q3 2023

Shares 16,620 Value ($000) $2,025 Avg Close $127.23 Range $116.28 - $139.06

Q2 2023

Shares 24,920 Value ($000) $3,503 Avg Close $130.98 Range $123.12 - $141.24

Q1 2023

Shares 4,662 Value ($000) $660 Avg Close $135.20 Range $123.25 - $148.14

Q4 2022

Shares 24,735 Value ($000) $3,870 Avg Close $135.28 Range $114.90 - $149.06

Q3 2022

Shares 113,629 Value ($000) $13,941 Avg Close $123.30 Range $112.74 - $133.75

Q2 2022

Shares 81,936 Value ($000) $10,896 Avg Close $126.95 Range $116.79 - $135.49

Q1 2022

Shares 64,682 Value ($000) $8,852 Avg Close $129.14 Range $116.62 - $159.25

Q4 2021

Shares 75,782 Value ($000) $13,111 Avg Close $140.46 Range $128.33 - $160.79

Q3 2021

Shares 54,263 Value ($000) $7,885 Avg Close $134.48 Range $120.64 - $147.59

Q2 2021

Shares 25,886 Value ($000) $3,416 Avg Close $119.77 Range $115.00 - $130.65

Q1 2021

Shares 22,605 Value ($000) $2,901 Avg Close $112.12 Range $103.22 - $122.67

Q4 2020

Shares 24,415 Value ($000) $2,910 Avg Close $110.49 Range $98.77 - $118.60

Q3 2020

Shares 30,400 Value ($000) $3,480 Avg Close $106.55 Range $93.90 - $118.90

Q2 2020

Shares 32,000 Value ($000) $3,647 Avg Close $95.20 Range $65.05 - $112.22

Q1 2020

Shares 39,700 Value ($000) $3,188 Avg Close $92.18 Range $65.22 - $105.64

Q4 2019

Shares 33,800 Value ($000) $3,610 Avg Close $92.43 Range $88.27 - $96.58

Q3 2019

Shares 41,500 Value ($000) $4,442 Avg Close $90.53 Range $85.50 - $95.23

Q2 2019

Shares 32,381 Value ($000) $3,297 Avg Close $84.30 Range $73.99 - $89.95

Q1 2019

Shares 33,781 Value ($000) $3,038 Avg Close $75.54 Range $69.30 - $79.02

Q4 2018

Shares 47,000 Value ($000) $3,914 Avg Close $81.26 Range $68.45 - $93.85

Q3 2018

Shares 47,500 Value ($000) $5,126 Avg Close $94.62 Range $90.13 - $99.79

Q2 2018

Shares 49,600 Value ($000) $5,453 Avg Close $89.48 Range $82.55 - $100.07

Q1 2018

Shares 12,641 Value ($000) $1,268 Avg Close $87.50 Range $81.42 - $92.99

Q4 2017

Shares 53,300 Value ($000) $5,250 Avg Close $80.65 Range $76.65 - $87.31

Q3 2017

Shares 58,700 Value ($000) $5,520 Avg Close $89.87 Range $77.62 - $95.26

Q2 2017

Shares 28,500 Value ($000) $3,159 Avg Close $89.16 Range $81.72 - $94.33

Q1 2017

Shares 29,100 Value ($000) $2,860 Avg Close $80.00 Range $75.65 - $83.94

Q4 2016

Shares 59,200 Value ($000) $5,434 Avg Close $71.99 Range $66.09 - $78.16

Q3 2016

Shares 75,400 Value ($000) $6,381 Avg Close $69.82 Range $66.73 - $72.20

Q2 2016

Shares 80,800 Value ($000) $6,578 Avg Close $62.99 Range $58.34 - $67.34

Q1 2016

Shares 85,500 Value ($000) $6,109 Avg Close $55.15 Range $49.08 - $59.76

Q4 2015

Shares 60,900 Value ($000) $4,332 Avg Close $54.99 Range $49.21 - $59.25

Q3 2015

Shares 63,400 Value ($000) $3,897 Avg Close $56.82 Range $48.84 - $61.18

Q2 2015

Shares 63,200 Value ($000) $4,583 Avg Close $59.70 Range $56.18 - $71.98

Q1 2015

Shares 63,700 Value ($000) $4,895 Avg Close $57.60 Range $52.93 - $63.03

Q4 2014

Shares 70,100 Value ($000) $4,701 Avg Close $50.52 Range $45.06 - $54.86

Q3 2014

Shares 76,400 Value ($000) $4,636 Avg Close $49.06 Range $46.54 - $51.28

Q2 2014

Shares 79,000 Value ($000) $4,637 Avg Close $46.37 Range $43.49 - $49.44

Q1 2014

Shares 82,800 Value ($000) $4,796 Avg Close $42.22 Range $39.75 - $47.66

Q4 2013

Shares 82,100 Value ($000) $4,396 Avg Close $46.46 Range $41.12 - $50.21

Q3 2013

Shares 97,300 Value ($000) $6,012 Avg Close $46.67 Range $44.29 - $48.97

Q2 2013

Shares 120,900 Value ($000) $7,330 Avg Close $46.22 Range $42.87 - $49.18

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	1,396	$266	$176.64	$163.92 - $190.64
Q2 2025	1,425	$256	$172.09	$155.80 - $180.75
Q1 2025	1,360	$230	$161.93	$146.66 - $176.41
Q4 2024	86,022	$12,977	$152.61	$143.46 - $162.25
Q3 2024	1,757	$273	$145.81	$132.40 - $155.63
Q2 2024	78,480	$10,742	$132.98	$121.83 - $141.45
Q1 2024	19,832	$2,640	$125.21	$118.84 - $138.00
Q4 2023	26,898	$3,709	$126.28	$114.23 - $136.42
Q3 2023	16,620	$2,025	$127.23	$116.28 - $139.06
Q2 2023	24,920	$3,503	$130.98	$123.12 - $141.24
Q1 2023	4,662	$660	$135.20	$123.25 - $148.14
Q4 2022	24,735	$3,870	$135.28	$114.90 - $149.06
Q3 2022	113,629	$13,941	$123.30	$112.74 - $133.75
Q2 2022	81,936	$10,896	$126.95	$116.79 - $135.49
Q1 2022	64,682	$8,852	$129.14	$116.62 - $159.25
Q4 2021	75,782	$13,111	$140.46	$128.33 - $160.79
Q3 2021	54,263	$7,885	$134.48	$120.64 - $147.59
Q2 2021	25,886	$3,416	$119.77	$115.00 - $130.65
Q1 2021	22,605	$2,901	$112.12	$103.22 - $122.67
Q4 2020	24,415	$2,910	$110.49	$98.77 - $118.60
Q3 2020	30,400	$3,480	$106.55	$93.90 - $118.90
Q2 2020	32,000	$3,647	$95.20	$65.05 - $112.22
Q1 2020	39,700	$3,188	$92.18	$65.22 - $105.64
Q4 2019	33,800	$3,610	$92.43	$88.27 - $96.58
Q3 2019	41,500	$4,442	$90.53	$85.50 - $95.23
Q2 2019	32,381	$3,297	$84.30	$73.99 - $89.95
Q1 2019	33,781	$3,038	$75.54	$69.30 - $79.02
Q4 2018	47,000	$3,914	$81.26	$68.45 - $93.85
Q3 2018	47,500	$5,126	$94.62	$90.13 - $99.79
Q2 2018	49,600	$5,453	$89.48	$82.55 - $100.07
Q1 2018	12,641	$1,268	$87.50	$81.42 - $92.99
Q4 2017	53,300	$5,250	$80.65	$76.65 - $87.31
Q3 2017	58,700	$5,520	$89.87	$77.62 - $95.26
Q2 2017	28,500	$3,159	$89.16	$81.72 - $94.33
Q1 2017	29,100	$2,860	$80.00	$75.65 - $83.94
Q4 2016	59,200	$5,434	$71.99	$66.09 - $78.16
Q3 2016	75,400	$6,381	$69.82	$66.73 - $72.20
Q2 2016	80,800	$6,578	$62.99	$58.34 - $67.34
Q1 2016	85,500	$6,109	$55.15	$49.08 - $59.76
Q4 2015	60,900	$4,332	$54.99	$49.21 - $59.25
Q3 2015	63,400	$3,897	$56.82	$48.84 - $61.18
Q2 2015	63,200	$4,583	$59.70	$56.18 - $71.98
Q1 2015	63,700	$4,895	$57.60	$52.93 - $63.03
Q4 2014	70,100	$4,701	$50.52	$45.06 - $54.86
Q3 2014	76,400	$4,636	$49.06	$46.54 - $51.28
Q2 2014	79,000	$4,637	$46.37	$43.49 - $49.44
Q1 2014	82,800	$4,796	$42.22	$39.75 - $47.66
Q4 2013	82,100	$4,396	$46.46	$41.12 - $50.21
Q3 2013	97,300	$6,012	$46.67	$44.29 - $48.97
Q2 2013	120,900	$7,330	$46.22	$42.87 - $49.18