Insider trading

Period: 120 months Stock: CLH Role: Directors × + 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.

52 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.

52 decisions over 120 months Remove this filter
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.

52 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.

52 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.
52 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
52 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.

52 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
3 Aug 2026
Robertson Andrea Director
Sold at will
$247.75K 789 at 314.01
8.1%
Not planned
26 May 2026
States Lauren Director
Sold at will
$225.80K 789 at 286.19
6.5%
Not planned
18 Mar 2026
Reed Marcy L. Director
Sold at will
$240.72K 836 at 287.94
14.1%
Not planned
19 Feb 2026
Welch John R. Director
Sold at will
$204.80K 750 at 273.07
6.8%
Not planned
31 Jul 2025
Robertson Andrea Director
Sold at will
$195.32K 836 at 233.64
7.8%
Not planned
5 Jun 2025
Quirk Alison A. Director
Sold at will
$199.76K 893 at 223.69
23.1%
Not planned
28 May 2025
Welch John R. Director
Sold at will
$285.64K 1,250 at 228.51
9.9%
Not planned
22 May 2025
States Lauren Director
Sold at will
$189.08K 836 at 226.17
6.6%
Not planned
18 Feb 2025
States Lauren Director
Sold on a plan
$70.47K 308 at 228.79
2.5%
Planned (10b5-1)
15 Jan 2025
States Lauren Director
Sold on a plan
$73.62K 308 at 239.04
2.5%
Planned (10b5-1)
16 Dec 2024
States Lauren Director
Sold on a plan
$75.48K 308 at 245.06
2.4%
Planned (10b5-1)
15 Nov 2024
States Lauren Director
Sold on a plan
$76.93K 308 at 249.78
2.3%
Planned (10b5-1)
15 Oct 2024
States Lauren Director
Sold on a plan
$80.31K 308 at 260.74
2.3%
Planned (10b5-1)
16 Sep 2024
States Lauren Director
Sold at will
$75.42K 309 at 244.09
2.2%
Not planned
1 Aug 2024
Robertson Andrea Director
Sold at will
$274.26K 1,148 at 238.90
10.0%
Not planned
23 May 2024
States Lauren Director
Sold at will
$250.42K 1,148 at 218.14
7.7%
Not planned
14 Mar 2024
PRESTON JOHN T Director
Sold at will
$360.33K 1,913 at 188.36
28.6%
Not planned
16 Aug 2023
PRESTON JOHN T Director
Sold at will
$363.86K 2,095 at 173.68
23.9%
Not planned
8 Aug 2023
Robertson Andrea Director
Sold at will
$202.89K 1,200 at 169.08
10.1%
Not planned
9 Jun 2023
BANUCCI EUGENE G Director
Sold at will
$783.57K 5,020 at 156.09
47.3%
Not planned
2 Jun 2023
Welch John R. Director
Sold at will
$150.43K 1,000 at 150.43
7.4%
Not planned
26 May 2023
BANUCCI EUGENE G Director
Sold at will
$1.45M 10,000 at 144.59
48.5%
Not planned
4 May 2023
States Lauren Director
Sold at will
$69.43K 510 at 136.13
3.7%
Not planned
7 Mar 2023
BANUCCI EUGENE G Director
Sold, plan not stated
$669.85K 5,000 at 133.97
19.5%
2 Mar 2023
PRESTON JOHN T Director
Sold, plan not stated
$505.88K 3,750 at 134.90
33.0%
8 Aug 2022
PRESTON JOHN T Director
Sold, plan not stated
$241.74K 2,168 at 111.50
16.0%
5 Aug 2022
Robertson Andrea Director
Sold, plan not stated
$116.48K 1,095 at 106.37
9.3%
10 May 2022
States Lauren Director
Sold, plan not stated
$68.01K 750 at 90.68
5.7%
25 Feb 2022
Robertson Andrea Director
Sold, plan not stated
$95.30K 1,000 at 95.30
8.7%
5 Aug 2021
Welch John R. Director
Sold, plan not stated
$544.78K 5,500 at 99.05
35.1%
5 Aug 2021
Robertson Andrea Director
Sold, plan not stated
$214.94K 2,168 at 99.14
16.2%
10 May 2021
Marlin Rod Director
Sold, plan not stated
$659.19K 6,910 at 95.40
32.4%
18 Mar 2021
Marlin Rod Director
Sold, plan not stated
$855.44K 9,603 at 89.08
31.0%
18 Mar 2021
Marlin Rod Director · indirect
Sold, plan not stated 3×
$466.60K 5,238 at 89.08
100%
Sold half or more
26 Feb 2021
PRESTON JOHN T Director
Sold, plan not stated
$512.94K 6,000 at 85.49
37.7%
25 Feb 2021
Robertson Andrea Director
Sold, plan not stated
$134.13K 1,500 at 89.42
11.2%
10 Nov 2020
Robertson Andrea Director
Sold, plan not stated
$91.46K 1,272 at 71.90
8.7%
8 Jun 2020
Marlin Rod Director
Sold, plan not stated
$276.00K 4,000 at 69.00
10.2%
8 Jun 2020
Marlin Rod Director · indirect
Sold, plan not stated
$69.00K 1,000 at 69.00
32.6%
31 Oct 2019
Robertson Andrea Director
Sold, plan not stated
$83.78K 1,000 at 83.78
7.4%
1 Aug 2019
Robertson Andrea Director
Sold, plan not stated
$201.95K 2,557 at 78.98
16.0%
26 Jun 2019
Marlin Rod Director
Sold, plan not stated
$292.63K 4,267 at 68.58
10.3%
5 Mar 2019
Robertson Andrea Director
Sold, plan not stated
$66.75K 1,000 at 66.75
6.7%
1 Mar 2019
Marlin Rod Director
Sold, plan not stated
$513.75K 7,500 at 68.50
16.0%
1 Mar 2019
Marlin Rod Director · indirect
Sold, plan not stated
$171.25K 2,500 at 68.50
44.9%
1 Nov 2018
Robertson Andrea Director
Sold, plan not stated
$102.47K 1,500 at 68.31
9.1%
2 Aug 2018
Robertson Andrea Director
Sold, plan not stated
$127.24K 2,000 at 63.62
10.9%
6 Mar 2018
PRESTON JOHN T Director
Sold, plan not stated
$254.65K 5,000 at 50.93
34.7%
5 May 2017
Robertson Andrea Director
Sold, plan not stated
$62.68K 1,034 at 60.62
6.8%
24 Feb 2017
Robertson Andrea Director
Sold, plan not stated
$113.02K 2,000 at 56.51
11.6%
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