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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: 2/20/26 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
$202.41 $213.20 $157.20 $22,517 110 1,082 1.7% 6.0% 100.26% 0.40%
Exch Sector Industry Sub-Industry
NYSE Services Health Services Services- Medical Laboratories
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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
    
 
PLEWMAN PATRICK
VP
AS
$196,227
958
---
2/19/26
---
$204.83
15,838
-5.7
D
R,10b
2/20/26 - 5:13:11 pm
2
1y
61
36%
6%
1
PREVOZNIK MICHAEL E
VP,GC
AS
$227,566
1,111
---
2/19/26
---
$204.83
38,371
-2.8
D
R,10b
2/20/26 - 5:12:09 pm
3
1y
32
38%
7%
1
DOHERTY CATHERINE T
VP
AS
$293,521
1,433
---
2/19/26
---
$204.83
68,402
-2.1
D
R,10b
2/20/26 - 5:11:15 pm
4
    
 
PLEWMAN PATRICK
VP
JS
$111,891
537
---
2/18/26
---
$206.99
16,796
-3.1
D
R,10b
2/20/26 - 5:13:11 pm
5
    
 
PLEWMAN PATRICK
VP
JB
---
1,952
---
2/18/26
---
---
17,333
12.7
D
R,10b
2/20/26 - 5:13:11 pm
6
    
 
SAMAD SAM
VP,CFO
JS
$388,618
1,865
---
2/18/26
---
$206.99
27,841
-6.3
D
R
2/20/26 - 5:12:39 pm
7
    
 
SAMAD SAM
VP,CFO
JB
$12,662
4,034
1/28/26
2/18/26
---
$183.51
29,706
15.7
D
R
2/20/26 - 5:12:39 pm
8
    
 
PREVOZNIK MICHAEL E
VP,GC
JS
$135,039
648
---
2/18/26
---
$206.99
39,482
-1.6
D
R,10b
2/20/26 - 5:12:09 pm
9
    
 
PREVOZNIK MICHAEL E
VP,GC
JB
---
2,013
---
2/18/26
---
---
40,130
5.3
D
R,10b
2/20/26 - 5:12:09 pm
10
    
 
DAVIS J E
CEO,PR,DIR
JS
$1,287,262
6,184
---
2/18/26
---
$206.99
130,153
-4.5
D
R
2/20/26 - 5:11:48 pm
11
    
 
DAVIS J E
CEO,PR,DIR
JB
---
15,857
---
2/18/26
---
---
136,337
13.2
D
R
2/20/26 - 5:11:48 pm
12
    
 
DOHERTY CATHERINE T
VP
JS
$241,623
1,161
---
2/18/26
---
$206.99
69,835
-1.6
D
R,10b
2/20/26 - 5:11:15 pm
13
    
 
DOHERTY CATHERINE T
VP
JB
---
2,928
---
2/18/26
---
---
70,996
4.3
D
R,10b
2/20/26 - 5:11:15 pm
14
    
 
KUPPUSAMY KARTHIK
VP
JS
$106,533
511
---
2/18/26
---
$206.99
7,914
-6.1
D
R
2/20/26 - 5:10:45 pm
15
    
 
KUPPUSAMY KARTHIK
VP
JB
---
2,135
---
2/18/26
---
---
10,049
27.0
D
R
2/20/26 - 5:10:45 pm
16
    
 
DELANEY MARK E
VP
JS
$90,660
435
---
2/18/26
---
$206.99
8,681
-4.8
D
R
2/20/26 - 5:10:00 pm
17
    
 
DELANEY MARK E
VP
JB
---
1,586
---
2/18/26
---
---
9,116
21.1
D
R
2/20/26 - 5:10:00 pm
18
    
 
DEPPE MICHAEL J
VP,CT,CAO
JS
$37,923
182
---
2/18/26
---
$206.99
34,560
-0.5
D
R
2/20/26 - 5:09:22 pm
19
    
 
DEPPE MICHAEL J
VP,CT,CAO
JB
---
366
---
2/18/26
---
---
34,742
1.1
D
R
2/20/26 - 5:09:22 pm
20
1y
32
38%
7%
1
DOHERTY CATHERINE T
VP
OS
$5,393,815
26,165
---
2/13/26
$205.21
$209.10
68,068
-27.8
D
10b
2/17/26 - 4:37:36 pm
21
    
 
DOHERTY CATHERINE T
VP
OE
$2,934,928
26,165
---
2/13/26
---
$112.17
94,233
38.4
D
10b
2/17/26 - 4:37:36 pm
22
    
 
PLEWMAN PATRICK
VP
OS
$1,155,048
5,662
---
2/10/26
---
$204.00
15,381
-26.9
D
10b
2/12/26 - 4:33:09 pm
23
    
 
PLEWMAN PATRICK
VP
OE
$689,660
5,662
---
2/10/26
---
$121.81
21,043
36.8
D
10b
2/12/26 - 4:33:09 pm
24
    
 
LASSITER WRIGHT III
DIR
JB*
$1,285
7
---
1/28/26
---
$183.51
9,057
0.1
D
---
2/20/26 - 5:08:27 pm
25
6m
1
100%
7%
3
CARTER ROBERT B
DIR
JB*
$1,101
6
---
1/28/26
---
$183.51
2,704
0.2
D
---
2/20/26 - 5:07:04 pm
26
    
 
GREGG VICKY B
DIR
JB*
$12,295
67
---
1/28/26
---
$183.51
17,104
0.4
D
---
2/20/26 - 5:06:31 pm
27
    
 
PLEWMAN PATRICK
VP
JB
$8,809
48
---
1/28/26
---
$183.51
15,381
0.3
D
10b
2/12/26 - 4:33:09 pm
28
1y
10
50%
1%
1
DAVIS J E
CEO,PR,DIR
OS
$10,589,760
55,093
---
11/25/25
$191.59
$192.97
120,480
-31.4
D
10b
11/28/25 - 4:30:50 pm
29
    
 
DAVIS J E
CEO,PR,DIR
OE
$5,277,634
55,093
---
11/25/25
---
$95.80
175,573
45.7
D
10b
11/28/25 - 4:30:50 pm
30
    
 
GREGG VICKY B
DIR
S
$239,700
1,250
---
11/25/25
---
$191.76
17,037
-6.8
D
---
11/28/25 - 4:30:31 pm
31
    
 
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
32
    
 
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
33
    
 
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
34
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
35
    
 
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
36
    
 
PLEWMAN PATRICK
VP
JB
$8,698
46
---
10/21/25
---
$189.08
15,333
0.3
D
---
10/24/25 - 6:11:27 pm
37
    
 
KUPPUSAMY KARTHIK
VP
JB
$2,836
15
---
10/21/25
---
$189.08
8,379
0.2
D
---
10/24/25 - 6:11:11 pm
38
    
 
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
39
    
 
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
40
    
 
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
41
1y
61
36%
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
42
    
 
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
43
1y
61
36%
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
44
    
 
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
45
    
 
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
46
    
 
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
47
    
 
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
48
    
 
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
49
    
 
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
50
    
 
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
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