Insider trading

Period: 120 months Stock: DGX Plan: Not on a plan × + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

135 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

135 decisions over 120 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

135 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

135 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
135 decisions over 120 months Remove this filter
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
135 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

135 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
4 Mar 2026
KUPPUSAMY KARTHIK SVP, Clinical Solutions
Sold at will
$538.37K 2,628 at 204.86
16.4%
Not planned
25 Nov 2025
Gregg Vicky B Director
Sold at will
$239.70K 1,250 at 191.76
6.8%
Not planned
22 Oct 2025
PFEIFFER GARY M Director
Sold at will
$270.32K 1,482 at 182.40
4.8%
Not planned
19 Feb 2025
Plewman Patrick SVP for Diagnostic Services
Sold at will
$54.31K 320 at 169.71
1.7%
Not planned
5 Feb 2025
Gregg Vicky B Director
Sold at will
$205.71K 1,250 at 164.57
6.9%
Not planned
5 Feb 2025
DELANEY MARK E SVP & Chief Commercial Officer
Sold at will
$66.21K 403 at 164.30
8.0%
Not planned
29 Nov 2024
PREVOZNIK MICHAEL E SVP & General Counsel
Sold at will 2×
$5.73M 35,146 at 163.07
47.7%
Not planned
27 Nov 2024
Doherty Catherine T. EVP, Regional Businesses
Sold at will 2×
$5.40M 33,103 at 162.99
32.6%
Not planned
6 Nov 2024
Deppe Michael J SVP, Corp. Controller & CAO
Sold at will 6×
$2.89M 18,755 at 154.05
34.9%
Not planned
28 Oct 2024
KUPPUSAMY KARTHIK SVP, Clinical Solutions
Sold at will
$278.53K 1,775 at 156.92
15.4%
Not planned
29 Aug 2024
PREVOZNIK MICHAEL E SVP & General Counsel
Sold at will
$5.04M 32,551 at 154.97
45.8%
Not planned
28 Aug 2024
KUPPUSAMY KARTHIK SVP, Clinical Solutions
Sold at will
$304.99K 1,990 at 153.26
14.8%
Not planned
24 Jul 2024
DELANEY MARK E SVP & Chief Commercial Officer
Sold at will
$60.09K 420 at 143.08
7.7%
Not planned
23 Feb 2024
Gregg Vicky B Director
Sold at will
$316.60K 2,500 at 126.64
13.3%
Not planned
7 Mar 2023
Doherty Catherine T. SVP, Regional Businesses
Sold, plan not stated
$745.90K 5,307 at 140.55
7.3%
7 Mar 2023
PREVOZNIK MICHAEL E SVP & General Counsel
Sold, plan not stated
$668.17K 4,754 at 140.55
11.0%
3 Mar 2023
Doherty Catherine T. SVP, Regional Businesses
Sold, plan not stated
$100.83K 717 at 140.63
1.0%
2 Mar 2023
PREVOZNIK MICHAEL E SVP & General Counsel
Sold, plan not stated
$82.15K 593 at 138.54
1.5%
24 Feb 2023
Doherty Catherine T. SVP, Regional Businesses
Sold, plan not stated
$239.00K 1,690 at 141.42
2.4%
24 Feb 2023
PREVOZNIK MICHAEL E SVP & General Counsel
Sold, plan not stated
$200.11K 1,415 at 141.42
3.5%
1 Dec 2022
RING TIMOTHY M Director
Sold, plan not stated
$308.81K 2,025 at 152.50
7.7%
28 Nov 2022
Doherty Catherine T. SVP, Regional Businesses
Sold, plan not stated 2×
$6.08M 40,765 at 149.18
37.6%
1 Nov 2022
RING TIMOTHY M Director
Sold, plan not stated
$288.12K 2,000 at 144.06
7.6%
26 Oct 2022
Deppe Michael J VP, Corp. Controller & CAO
Sold, plan not stated
$2.25M 15,497 at 145.00
32.6%
3 Oct 2022
RING TIMOTHY M Director
Sold, plan not stated
$246.78K 2,000 at 123.39
7.7%
1 Sep 2022
RING TIMOTHY M Director
Sold, plan not stated
$250.04K 2,000 at 125.02
7.7%
1 Aug 2022
RING TIMOTHY M Director
Sold, plan not stated
$272.08K 2,000 at 136.04
7.7%
1 Jul 2022
RING TIMOTHY M Director
Sold, plan not stated
$266.94K 2,000 at 133.47
7.7%
25 May 2022
RUSCKOWSKI STEPHEN H Chairman, CEO and President
Sold, plan not stated 6×
$3.51M 24,891 at 140.89
6.9%
24 May 2022
RUSCKOWSKI STEPHEN H Chairman, CEO and President
Sold, plan not stated 2×
$39.57M 282,408 at 140.12
45.8%
23 May 2022
RUSCKOWSKI STEPHEN H Chairman, CEO and President
Sold, plan not stated 6×
$10.86M 77,466 at 140.17
18.8%
17 May 2022
PREVOZNIK MICHAEL E SVP & General Counsel
Sold, plan not stated
$7.08M 50,604 at 139.97
56.3%
Sold half or more
8 Mar 2022
Doherty Catherine T. SVP, Group Exec. Clin. Fran.
Sold, plan not stated
$950.80K 7,032 at 135.21
9.4%
8 Mar 2022
PREVOZNIK MICHAEL E SVP & General Counsel
Sold, plan not stated
$842.09K 6,228 at 135.21
13.7%
28 Feb 2022
PREVOZNIK MICHAEL E SVP & General Counsel
Sold, plan not stated
$85.93K 661 at 130.00
1.7%
24 Feb 2022
Doherty Catherine T. SVP, Group Exec. Clin. Fran.
Sold, plan not stated
$347.22K 2,750 at 126.26
4.1%
24 Feb 2022
PREVOZNIK MICHAEL E SVP & General Counsel
Sold, plan not stated
$210.73K 1,669 at 126.26
4.3%
29 Nov 2021
Doherty Catherine T. SVP, Group Exec. Clin. Fran.
Sold, plan not stated 5×
$5.89M 37,565 at 156.81
35.3%
29 Jul 2021
RUSCKOWSKI STEPHEN H Chairman, CEO and President
Sold, plan not stated 2×
$1.34M 9,493 at 140.87
3.2%
28 Jul 2021
RUSCKOWSKI STEPHEN H Chairman, CEO and President
Sold, plan not stated
$19.58M 139,751 at 140.14
32.9%
27 Jul 2021
RUSCKOWSKI STEPHEN H Chairman, CEO and President
Sold, plan not stated
$4.59M 32,788 at 140.01
10.3%
27 Jul 2021
WILENSKY GAIL R Director
Sold, plan not stated 2×
$1.70M 12,222 at 139.30
40.6%
26 Jul 2021
RUSCKOWSKI STEPHEN H Chairman, CEO and President
Sold, plan not stated
$813.99K 5,813 at 140.03
2.0%
7 May 2021
Doherty Catherine T. SVP, Group Exec. Clin. Fran.
Sold, plan not stated
$1.19M 8,536 at 139.96
11.0%
5 May 2021
PREVOZNIK MICHAEL E SVP & General Counsel
Sold, plan not stated
$6.16M 44,939 at 137.00
52.8%
Sold half or more
10 Mar 2021
PREVOZNIK MICHAEL E SVP & General Counsel
Sold, plan not stated
$671.50K 5,574 at 120.47
12.2%
25 Feb 2021
PREVOZNIK MICHAEL E SVP & General Counsel
Sold, plan not stated
$92.51K 801 at 115.49
2.0%
24 Feb 2021
PREVOZNIK MICHAEL E SVP & General Counsel
Sold, plan not stated 2×
$138.94K 1,188 at 116.95
2.8%
24 Dec 2020
GUINAN MARK Executive Vice President & CFO
Sold, plan not stated 2×
$9.84M 81,756 at 120.37
52.6%
Sold half or more
24 Nov 2020
WILENSKY GAIL R Director
Sold, plan not stated
$770.12K 6,111 at 126.02
27.0%
Showing 1–50 of 135. Page 1 of 3 Older →