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 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
QUEST DIAGNOSTICS INC: DGX
Price: 11/21/25 52-Wk
High		 52-Wk
Low		 Mkt Cap (mm) Shrs Out (mm) 3-Mth Ave
Vol (m)		 Ind. Yield Short Int
% Float		 Inst. Owned Insider Owned
$191.25 $197.55 $148.70 $21,386 111 971 1.7% 4.7% 99.11% 0.40%
Exch Sector Industry Sub-Industry
NYSE Services Health Services Services- Medical Laboratories
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#
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Insider Statistics
T N H M S
Filer Name
Insider Title
Trans Type
Dollar Value
Shares Traded
Trans Date From
Trans Date To
Trans Price From
Trans Price To
Total Holdings
Delta % Owned
Owned
Other Info
Input Date
1
    
 
DELANEY MARK E
VP
OS
$1,488,683
7,946
---
11/18/25
---
$187.35
7,530
-51.3
D
10b
11/20/25 - 4:28:10 pm
2
    
 
DELANEY MARK E
VP
OE
$1,147,845
7,946
---
11/18/25
---
$143.33
15,476
105.5
D
10b
11/20/25 - 4:28:10 pm
3
    
 
DAVIS J E
CEO,PR,DIR
JS
$1,254,097
7,143
---
11/5/25
---
$175.57
120,480
-5.6
D
R
11/7/25 - 4:29:54 pm
4
1y
7
43%
3%
3
PFEIFFER GARY M
DIR
S
$270,317
1,482
---
10/22/25
---
$182.40
29,431
-4.8
D
---
10/24/25 - 6:10:54 pm
5
    
 
SAMAD SAM
VP,CFO
JB
$12,858
68
---
10/21/25
---
$189.08
25,741
0.3
D
R
10/24/25 - 6:11:42 pm
6
    
 
PLEWMAN PATRICK
VP
JB
$8,698
46
---
10/21/25
---
$189.08
15,333
0.3
D
---
10/24/25 - 6:11:27 pm
7
    
 
KUPPUSAMY KARTHIK
VP
JB
$2,836
15
---
10/21/25
---
$189.08
8,379
0.2
D
---
10/24/25 - 6:11:11 pm
8
    
 
GREGG VICKY B
DIR
JB
$13,236
70
---
10/21/25
---
$189.08
18,287
0.4
D
---
10/24/25 - 6:10:08 pm
9
    
 
DELANEY MARK E
VP
JB
$2,836
15
---
10/21/25
---
$189.08
7,530
0.2
D
---
10/24/25 - 6:09:48 pm
10
    
 
CARTER ROBERT B
DIR
JB
$1,135
6
---
10/21/25
---
$189.09
2,698
0.2
D
---
10/24/25 - 6:09:22 pm
11
1y
60
37%
6%
1
PREVOZNIK MICHAEL E
VP,GC
OS
$42,706
227
---
9/26/25
$187.22
$188.66
38,117
-0.6
D
10b
9/30/25 - 4:36:58 pm
12
    
 
PREVOZNIK MICHAEL E
VP,GC
OE
$23,510
227
---
9/26/25
---
$103.57
38,344
0.6
D
10b
9/30/25 - 4:36:58 pm
13
1y
60
37%
6%
1
PREVOZNIK MICHAEL E
VP,GC
OS
$5,326,042
28,463
9/23/25
9/24/25
---
$187.02
38,117
-42.8
D
10b
9/25/25 - 4:39:11 pm
14
    
 
PREVOZNIK MICHAEL E
VP,GC
OE
$2,947,913
28,463
9/23/25
9/24/25
---
$103.57
66,405
75.0
D
10b
9/25/25 - 4:39:11 pm
15
    
 
PLEWMAN PATRICK
VP
AS
$365,375
1,975
---
8/21/25
---
$185.00
15,269
-11.5
D
10b
8/25/25 - 4:27:59 pm
16
    
 
PLEWMAN PATRICK
VP
OS
$829,356
4,532
---
8/19/25
---
$183.00
17,244
-20.8
D
10b
8/21/25 - 4:34:05 pm
17
    
 
PLEWMAN PATRICK
VP
OE
$508,354
4,532
---
8/19/25
---
$112.17
21,776
26.3
D
10b
8/21/25 - 4:34:05 pm
18
    
 
PLEWMAN PATRICK
VP
AS
$355,500
1,975
---
8/15/25
---
$180.00
17,244
-10.3
D
10b
8/19/25 - 4:47:13 pm
19
    
 
KUPPUSAMY KARTHIK
VP
JS
$21,637
123
---
8/13/25
---
$175.91
8,338
-1.5
D
R
8/15/25 - 5:25:57 pm
20
    
 
PLEWMAN PATRICK
VP
OS
$968,625
5,535
---
8/6/25
---
$175.00
19,219
-22.4
D
10b
8/8/25 - 4:40:39 pm
21
    
 
PLEWMAN PATRICK
VP
OE
$308,403
3,560
---
8/6/25
---
$86.63
24,745
16.8
D
10b
8/8/25 - 4:40:39 pm
22
    
 
KUPPUSAMY KARTHIK
VP
OS
$1,759,931
10,479
7/30/25
7/31/25
$167.40
$170.00
8,450
-55.4
D
10b
8/1/25 - 4:37:46 pm
23
    
 
KUPPUSAMY KARTHIK
VP
OE
$849,764
8,269
---
7/30/25
$86.63
$112.17
15,884
108.6
D
10b
8/1/25 - 4:37:46 pm
24
1y
1
100%
16%
2
SAMAD SAM
VP,CFO
JB*
$12,060
72
---
7/21/25
---
$167.50
25,673
0.3
D
---
7/25/25 - 4:29:00 pm
25
    
 
PLEWMAN PATRICK
VP
JB*
$13,400
80
---
7/21/25
---
$167.49
21,185
0.4
D
---
7/25/25 - 4:28:32 pm
26
    
 
KUPPUSAMY KARTHIK
VP
JB*
$4,522
27
---
7/21/25
---
$167.50
10,660
0.3
D
---
7/25/25 - 4:28:00 pm
27
    
 
LASSITER WRIGHT III
DIR
JB*
$1,173
7
---
7/21/25
---
$167.50
9,044
0.1
D
---
7/25/25 - 4:27:23 pm
28
    
 
GREGG VICKY B
DIR
JB*
$13,232
79
---
7/21/25
---
$167.50
18,217
0.4
D
---
7/25/25 - 4:26:52 pm
29
    
 
DELANEY MARK E
VP
JB*
$2,847
17
---
7/21/25
---
$167.49
7,515
0.2
D
---
7/25/25 - 4:26:20 pm
30
3m
1
100%
8%
3
CARTER ROBERT B
DIR
JB*
$1,173
7
---
7/21/25
---
$167.50
2,692
0.3
D
---
7/25/25 - 4:25:47 pm
31
    
 
SAMAD SAM
VP,CFO
JS
$143,659
850
---
7/16/25
---
$169.01
25,601
-3.2
D
R
7/17/25 - 4:26:28 pm
32
    
 
CARTER ROBERT B
DIR
JB
---
1,203
---
5/15/25
---
---
2,685
81.2
D
R
5/19/25 - 4:24:41 pm
33
    
 
DIAZ LUIS
DIR
JB
---
1,203
---
5/15/25
---
---
4,054
42.2
D
R
5/19/25 - 4:24:09 pm
34
    
 
GREGG VICKY B
DIR
JB
---
1,203
---
5/15/25
---
---
18,138
7.1
D
R
5/19/25 - 4:23:35 pm
35
    
 
DOI TRACEY
DIR
JB
---
1,203
---
5/15/25
---
---
6,490
22.8
D
R
5/19/25 - 4:23:03 pm
36
    
 
MAIN TIMOTHY L
DIR
JB
---
1,203
---
5/15/25
---
---
26,297
4.8
D
R
5/19/25 - 4:22:31 pm
37
    
 
MORRISON DENISE M
DIR
JB
---
1,203
---
5/15/25
---
---
10,742
12.6
D
R
5/19/25 - 4:22:00 pm
38
    
 
LASSITER WRIGHT III
DIR
JB
---
1,203
---
5/15/25
---
---
9,037
15.4
D
R
5/19/25 - 4:21:31 pm
39
    
 
RING TIMOTHY M
DIR
JB
---
1,203
---
5/15/25
---
---
29,507
4.3
D
R
5/19/25 - 4:21:04 pm
40
    
 
PFEIFFER GARY M
DIR
JB
---
1,203
---
5/15/25
---
---
30,669
4.1
D
R
5/19/25 - 4:20:23 pm
41
    
 
DELANEY MARK E
VP
AS
$306,800
1,748
5/12/25
5/13/25
---
$175.31
7,498
-18.9
D
10b
5/14/25 - 5:12:30 pm
42
1y
1
100%
16%
2
SAMAD SAM
VP,CFO
JB*
$12,167
74
---
4/21/25
---
$164.42
26,451
0.3
D
---
5/2/25 - 4:33:33 pm
43
    
 
KUPPUSAMY KARTHIK
VP
JB*
$4,439
27
---
4/21/25
---
$164.42
10,612
0.3
D
---
5/2/25 - 4:32:51 pm
44
    
 
PLEWMAN PATRICK
VP
JB*
$13,318
81
---
4/21/25
---
$164.42
21,087
0.4
D
---
5/2/25 - 4:32:07 pm
45
    
 
GREGG VICKY B
DIR
JB
$11,181
68
---
4/21/25
---
$164.42
16,935
0.4
D
---
5/2/25 - 4:31:29 pm
46
1y
10
50%
1%
1
DAVIS J E
CEO,PR,DIR
AS
$6,602,075
39,191
---
4/2/25
$167.86
$169.63
127,623
-23.5
D
10b
4/4/25 - 8:29:52 pm
47
    
 
KUPPUSAMY KARTHIK
VP
AS
$434,350
2,555
---
4/2/25
---
$170.00
10,575
-19.5
D
10b
4/4/25 - 8:26:53 pm
48
    
 
PLEWMAN PATRICK
VP
JS
$27,007
162
---
3/26/25
---
$166.71
20,988
-0.8
D
R
3/28/25 - 4:47:20 pm
49
    
 
DELANEY MARK E
VP
JS
$42,678
256
---
3/26/25
---
$166.71
9,221
-2.7
D
R
3/28/25 - 4:45:15 pm
50
1y
60
37%
6%
1
PREVOZNIK MICHAEL E
VP,GC
AS
$789,310
4,643
---
3/17/25
---
$170.00
38,117
-10.9
D
10b
3/19/25 - 9:00:47 pm
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