Insider trading

Period: 120 months Stock: CNC Minimum amount: $1M × + 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.

45 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.

45 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.

45 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.

45 decisions over 120 months Remove this filter
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.
45 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
45 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.

45 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
26 Aug 2026
KOSTER CHRISTOPHER Secretary & General Counsel
Sold at will
$3.78M 56,500 at 66.90
18.5%
Not planned
18 Aug 2026
KOSTER CHRISTOPHER Secretary & General Counsel
Sold at will
$3.11M 47,603 at 65.36
13.5%
Not planned
10 Jun 2026
Sold at will
$5.16M 80,000 at 64.55
28.9%
Not planned
4 Dec 2025
Sold at will
$1.28M 32,796 at 39.00
10.7%
Not planned
3 Dec 2025
Sold at will
$1.30M 33,211 at 39.04
9.8%
Not planned
18 Dec 2024
Greco Thomas Director
Bought
$1.02M 17,000 at 59.75
736%
First buy on file
13 Nov 2024
Asher Andrew Lynn Chief Financial Officer
Bought
$1.00M 17,200 at 58.14
3.7%
Largest buy in 3 yrs
17 Mar 2023
LONDON SARAH Chief Executive Officer
Bought
$1.88M 30,000 at 62.60
10.6%
First buy on file
14 Dec 2021
NEIDORFF MICHAEL F Chairman & CEO
Sold, plan not stated 2×
$3.99M 50,000 at 79.71
0.8%
10 Nov 2021
ROBERTS JOHN R Director
Sold, plan not stated
$1.50M 20,000 at 75.04
9.3%
28 Oct 2021
Sold, plan not stated
$1.42M 20,220 at 70.00
34.0%
28 Oct 2021
NEIDORFF MICHAEL F Chairman & CEO
Sold, plan not stated
$1.40M 20,000 at 70.09
0.3%
28 Oct 2021
KOSTER CHRISTOPHER SVP, Secr. & General Counsel
Sold, plan not stated
$1.00M 14,300 at 70.17
10.6%
15 Jun 2021
AYALA ORLANDO Director
Sold, plan not stated
$2.07M 30,000 at 69.01
23.0%
11 Jun 2021
Hunter Jesse N EVP, M&A & Chief Strategy Ofcr
Sold, plan not stated
$1.78M 25,000 at 71.17
5.7%
7 May 2021
Schwaneke Jeffrey A. EVP, HealthCare Enterprises
Sold, plan not stated
$1.24M 18,000 at 69.00
3.8%
7 May 2021
BROOKS MARK J EVP, Chief Information Officer
Sold, plan not stated
$1.02M 15,000 at 68.00
8.4%
9 Nov 2020
NEIDORFF MICHAEL F Chairman, President & CEO
Sold, plan not stated
$21.04M 300,000 at 70.12
4.6%
9 Nov 2020
Burdick Kenneth A EVP, Markets & Products
Sold, plan not stated
$2.46M 35,000 at 70.16
4.2%
9 Nov 2020
Hunter Jesse N EVP, M&A & Chief Strategy Ofcr
Sold, plan not stated
$1.58M 22,500 at 70.00
5.6%
3 Nov 2020
DITMORE ROBERT K Director
Sold, plan not stated
$2.17M 33,334 at 65.11
4.8%
2 Nov 2020
Burdick Kenneth A EVP, Markets & Products
Sold, plan not stated
$2.17M 35,000 at 62.02
4.0%
5 Oct 2020
Burdick Kenneth A EVP, Markets & Products
Sold, plan not stated
$2.17M 35,000 at 62.00
3.9%
10 Aug 2020
Burdick Kenneth A EVP, Markets & Products
Sold, plan not stated
$2.22M 35,000 at 63.33
3.7%
30 Jul 2020
Burdick Kenneth A EVP, Markets & Products
Sold, plan not stated
$2.31M 35,000 at 65.98
3.6%
30 Jul 2020
DITMORE ROBERT K Director
Sold, plan not stated
$2.18M 33,333 at 65.34
4.6%
22 Jun 2020
AYALA ORLANDO Director
Sold, plan not stated
$1.92M 30,000 at 63.87
15.7%
8 Jun 2020
Burdick Kenneth A EVP, Markets & Products
Sold, plan not stated
$2.31M 35,000 at 65.93
3.5%
8 Jun 2020
DITMORE ROBERT K Director
Sold, plan not stated
$2.18M 33,333 at 65.31
4.4%
11 May 2020
Burdick Kenneth A EVP, Markets & Products
Sold, plan not stated
$2.35M 35,000 at 67.09
3.3%
30 Apr 2020
Burdick Kenneth A EVP, Markets & Products
Sold, plan not stated
$2.32M 35,000 at 66.32
3.2%
8 Apr 2020
Burdick Kenneth A EVP, Markets & Products
Sold, plan not stated
$1.31M 20,314 at 64.32
1.8%
6 Feb 2020
DITMORE ROBERT K Director
Sold, plan not stated
$1.96M 30,000 at 65.31
3.8%
17 Dec 2019
DITMORE ROBERT K Director
Sold, plan not stated
$1.78M 30,000 at 59.49
3.7%
25 Nov 2019
NEIDORFF MICHAEL F Chairman, President & CEO
Sold, plan not stated
$6.02M 100,000 at 60.23
1.4%
18 Nov 2019
Hunter Jesse N EVP, M&A & Chief Strategy Ofcr
Sold, plan not stated
$1.20M 20,000 at 60.00
4.3%
15 Nov 2019
NEIDORFF MICHAEL F Chairman, President & CEO
Sold, plan not stated
$4.28M 75,000 at 57.00
1.1%
29 Oct 2019
DITMORE ROBERT K Director
Sold, plan not stated
$2.45M 49,019 at 50.01
5.6%
18 Dec 2018
Hunter Jesse N EVP, M&A & Chief Strategy Ofcr
Sold, plan not stated
$1.21M 10,000 at 121.26
4.2%
25 Oct 2018
DITMORE ROBERT K Director
Sold, plan not stated
$1.94M 15,000 at 129.24
3.3%
10 Sep 2018
DITMORE ROBERT K Director
Sold, plan not stated
$2.18M 15,000 at 145.06
3.2%
26 Jul 2018
DITMORE ROBERT K Director
Sold, plan not stated
$1.15M 8,750 at 131.44
1.9%
26 Apr 2018
NEIDORFF MICHAEL F Chairman & CEO
Sold, plan not stated
$27.05M 250,000 at 108.20
6.5%
6 Jul 2017
NEIDORFF MICHAEL F Chairman, President and CEO
Sold, plan not stated
$2.81M 35,000 at 80.26
0.9%
1 Jun 2017
NEIDORFF MICHAEL F Chairman, President and CEO
Sold, plan not stated
$1.88M 25,000 at 75.00
0.6%
Showing 1–45 of 45.