Insider trading

Period: 120 months Stock: DGX + 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.

182 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.

182 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.

182 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.

182 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.
182 decisions over 120 months
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
182 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.

182 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
1 Sep 2026
Davis J. E. CEO and President
Sold on a plan
$2.43M 10,000 at 242.72
7.6%
Planned (10b5-1)
28 Aug 2026
PREVOZNIK MICHAEL E SVP & General Counsel
Sold on a plan 3×
$5.51M 22,677 at 243.11
37.6%
Planned (10b5-1)
28 Jul 2026
DELANEY MARK E SVP & Chief Commercial Officer
Sold on a plan
$376.29K 1,600 at 235.18
13.4%
Planned (10b5-1)
4 Jun 2026
KUPPUSAMY KARTHIK SVP, Clinical Solutions
Sold on a plan
$1.63M 8,147 at 200.00
37.6%
Planned (10b5-1)
1 Jun 2026
Davis J. E. CEO and President
Sold on a plan
$1.94M 10,000 at 194.14
7.0%
Planned (10b5-1)
5 Mar 2026
Doherty Catherine T. EVP, Regional Businesses
Sold on a plan
$1.15M 5,558 at 206.21
7.6%
Planned (10b5-1)
5 Mar 2026
PREVOZNIK MICHAEL E SVP & General Counsel
Sold on a plan
$799.68K 3,878 at 206.21
9.4%
Planned (10b5-1)
5 Mar 2026
Plewman Patrick SVP for Diagnostic Services
Sold on a plan
$588.73K 2,855 at 206.21
15.8%
Planned (10b5-1)
4 Mar 2026
KUPPUSAMY KARTHIK SVP, Clinical Solutions
Sold at will
$538.37K 2,628 at 204.86
16.4%
Not planned
3 Mar 2026
Doherty Catherine T. EVP, Regional Businesses
Sold on a plan
$131.29K 632 at 207.73
0.9%
Planned (10b5-1)
3 Mar 2026
PREVOZNIK MICHAEL E SVP & General Counsel
Sold on a plan
$109.27K 526 at 207.73
1.4%
Planned (10b5-1)
3 Mar 2026
Plewman Patrick SVP for Diagnostic Services
Sold on a plan
$85.17K 410 at 207.73
2.6%
Planned (10b5-1)
2 Mar 2026
Davis J. E. CEO and President
Sold on a plan
$2.13M 10,000 at 212.52
7.9%
Planned (10b5-1)
19 Feb 2026
Doherty Catherine T. EVP, Regional Businesses
Sold on a plan
$293.52K 1,433 at 204.83
2.1%
Planned (10b5-1)
19 Feb 2026
PREVOZNIK MICHAEL E SVP & General Counsel
Sold on a plan
$227.57K 1,111 at 204.83
2.8%
Planned (10b5-1)
19 Feb 2026
Plewman Patrick SVP for Diagnostic Services
Sold on a plan
$196.23K 958 at 204.83
5.7%
Planned (10b5-1)
13 Feb 2026
Doherty Catherine T. EVP, Regional Businesses
Sold on a plan 5×
$5.39M 26,165 at 206.15
27.8%
Planned (10b5-1)
10 Feb 2026
Plewman Patrick SVP for Diagnostic Services
Sold on a plan
$1.16M 5,662 at 204.00
26.9%
Planned (10b5-1)
25 Nov 2025
Davis J. E. CEO and President
Sold on a plan 3×
$10.59M 55,093 at 192.22
31.4%
Planned (10b5-1)
25 Nov 2025
Gregg Vicky B Director
Sold at will
$239.70K 1,250 at 191.76
6.8%
Not planned
18 Nov 2025
DELANEY MARK E SVP & Chief Commercial Officer
Sold on a plan
$1.49M 7,946 at 187.35
51.3%
Sold half or more
22 Oct 2025
PFEIFFER GARY M Director
Sold at will
$270.32K 1,482 at 182.40
4.8%
Not planned
26 Sep 2025
PREVOZNIK MICHAEL E SVP & General Counsel
Sold on a plan 2×
$42.71K 227 at 188.13
0.6%
Planned (10b5-1)
24 Sep 2025
PREVOZNIK MICHAEL E SVP & General Counsel
Sold on a plan
$32.73K 175 at 187.02
0.5%
Planned (10b5-1)
23 Sep 2025
PREVOZNIK MICHAEL E SVP & General Counsel
Sold on a plan
$5.29M 28,288 at 187.12
42.6%
Planned (10b5-1)
21 Aug 2025
Plewman Patrick SVP for Diagnostic Services
Sold on a plan
$365.38K 1,975 at 185.00
11.5%
Planned (10b5-1)
19 Aug 2025
Plewman Patrick SVP for Diagnostic Services
Sold on a plan
$829.36K 4,532 at 183.00
20.8%
Planned (10b5-1)
15 Aug 2025
Plewman Patrick SVP for Diagnostic Services
Sold on a plan
$355.50K 1,975 at 180.00
10.3%
Planned (10b5-1)
6 Aug 2025
Plewman Patrick SVP for Diagnostic Services
Sold on a plan 2×
$968.63K 5,535 at 175.00
22.4%
Planned (10b5-1)
31 Jul 2025
KUPPUSAMY KARTHIK SVP, Clinical Solutions
Sold on a plan
$375.70K 2,210 at 170.00
20.7%
Planned (10b5-1)
30 Jul 2025
KUPPUSAMY KARTHIK SVP, Clinical Solutions
Sold on a plan 2×
$1.38M 8,269 at 167.40
43.7%
Planned (10b5-1)
13 May 2025
DELANEY MARK E SVP & Chief Commercial Officer
Sold on a plan
$153.22K 874 at 175.31
10.4%
Planned (10b5-1)
12 May 2025
DELANEY MARK E SVP & Chief Commercial Officer
Sold on a plan
$153.58K 874 at 175.72
9.5%
Planned (10b5-1)
2 Apr 2025
Davis J. E. CEO and President
Sold on a plan 15×
$6.60M 39,191 at 168.46
23.5%
Planned (10b5-1)
2 Apr 2025
KUPPUSAMY KARTHIK SVP, Clinical Solutions
Sold on a plan
$434.35K 2,555 at 170.00
19.5%
Planned (10b5-1)
17 Mar 2025
PREVOZNIK MICHAEL E SVP & General Counsel
Sold on a plan
$789.31K 4,643 at 170.00
10.9%
Planned (10b5-1)
5 Mar 2025
Doherty Catherine T. EVP, Regional Businesses
Sold on a plan
$935.08K 5,370 at 174.13
7.3%
Planned (10b5-1)
4 Mar 2025
Doherty Catherine T. EVP, Regional Businesses
Sold on a plan
$125.87K 716 at 175.79
1.0%
Planned (10b5-1)
4 Mar 2025
PREVOZNIK MICHAEL E SVP & General Counsel
Sold on a plan
$104.07K 592 at 175.79
1.5%
Planned (10b5-1)
27 Feb 2025
Doherty Catherine T. EVP, Regional Businesses
Sold on a plan
$142.23K 824 at 172.61
1.2%
Planned (10b5-1)
27 Feb 2025
PREVOZNIK MICHAEL E SVP & General Counsel
Sold on a plan
$91.14K 528 at 172.61
1.3%
Planned (10b5-1)
20 Feb 2025
Doherty Catherine T. EVP, Regional Businesses
Sold on a plan
$153.72K 899 at 170.99
1.3%
Planned (10b5-1)
20 Feb 2025
PREVOZNIK MICHAEL E SVP & General Counsel
Sold on a plan
$103.28K 604 at 170.99
1.5%
Planned (10b5-1)
19 Feb 2025
Doherty Catherine T. EVP, Regional Businesses
Sold on a plan
$90.79K 535 at 169.71
0.7%
Planned (10b5-1)
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
Showing 1–50 of 182. Page 1 of 4 Older →