Insider trading

Period: 120 months Stock: CLH + Add filter Clear all
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When

Period

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

223 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.

223 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.

223 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.

223 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.
223 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
223 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.

223 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
14 Aug 2026
Sold at will
$803.35K 2,500 at 321.34
4.2%
Not planned
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
Sold at will
$293.00K 1,000 at 293.00
2.5%
Not planned
18 Mar 2026
Reed Marcy L. Director
Sold at will
$240.72K 836 at 287.94
14.1%
Not planned
17 Mar 2026
Weber Brian P EVP (CHESI)
Sold at will
$1.37M 4,683 at 293.39
8.8%
Not planned
4 Mar 2026
MCKIM ALAN S EXEC CHAIR, CTO. · indirect
Sold at will
$29.27M 100,000 at 292.65
4.6%
Not planned
23 Feb 2026
Sold at will
$699.65K 2,500 at 279.86
5.5%
Not planned
20 Feb 2026
Gabriel Sharon M. EVP/CIO (CHESI)
Sold at will
$998.53K 3,540 at 282.07
13.2%
Not planned
20 Feb 2026
Dugas Eric J. EVP CHIEF FINANCIAL OFFICER
Sold at will
$784.29K 2,788 at 281.31
14.9%
Not planned
19 Feb 2026
MCKIM ALAN S EXEC CHAIR, CTO. · indirect
Sold at will
$28.11M 100,000 at 281.14
4.2%
Not planned
19 Feb 2026
Welch John R. Director
Sold at will
$204.80K 750 at 273.07
6.8%
Not planned
16 Dec 2025
Sold at will
$144.78K 601 at 240.90
1.2%
Not planned
1 Aug 2025
Bought
$467.00K 2,000 at 233.50
2.5%
First buy in 3+ yrs
31 Jul 2025
Robertson Andrea Director
Sold at will
$195.32K 836 at 233.64
7.8%
Not planned
13 Jun 2025
Weber Brian P EVP (CHESI)
Sold at will
$689.46K 3,035 at 227.17
5.3%
Not planned
6 Jun 2025
Sold at will
$1.82M 8,076 at 225.23
13.5%
Not planned
5 Jun 2025
MCKIM ALAN S EXEC CHAIR, CTO. · indirect
Sold at will
$13.02M 58,156 at 223.80
2.5%
Not planned
5 Jun 2025
Quirk Alison A. Director
Sold at will
$199.76K 893 at 223.69
23.1%
Not planned
4 Jun 2025
MCKIM ALAN S EXEC CHAIR, CTO. · indirect
Sold at will
$9.43M 41,844 at 225.40
1.7%
Not planned
28 May 2025
Welch John R. Director
Sold at will
$285.64K 1,250 at 228.51
9.9%
Not planned
27 May 2025
Speights Robert PRESIDENT, INDUSTRIAL SERVICES
Sold at will
$233.52K 1,022 at 228.49
5.9%
Not planned
22 May 2025
States Lauren Director
Sold at will
$189.08K 836 at 226.17
6.6%
Not planned
10 Mar 2025
Speights Robert PRESIDENT, INDUSTRIAL SERVICES
Sold at will
$518.95K 2,725 at 190.44
6.4%
Not planned
10 Mar 2025
Dugas Eric J. EVP CHIEF FINANCIAL OFFICER
Bought
$200.95K 1,050 at 191.38
4.5%
First buy on file
3 Mar 2025
MCKIM ALAN S EXEC CHAIR, CTO. · indirect
Sold at will 2×
$11.14M 52,999 at 210.28
2.2%
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)
27 Nov 2024
Weber Brian P EVP (CHESI)
Sold at will
$224.99K 861 at 261.31
1.4%
Not planned
15 Nov 2024
Sold at will
$1.52M 6,051 at 250.42
9.8%
Not planned
15 Nov 2024
States Lauren Director
Sold on a plan
$76.93K 308 at 249.78
2.3%
Planned (10b5-1)
5 Nov 2024
Speights Robert PRESIDENT, INDUSTRIAL SERVICES
Sold at will
$146.49K 610 at 240.14
1.5%
Not planned
15 Oct 2024
States Lauren Director
Sold on a plan
$80.31K 308 at 260.74
2.3%
Planned (10b5-1)
16 Sep 2024
Sold at will
$2.46M 10,000 at 245.74
11.5%
Not planned
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
11 Jun 2024
MCKIM ALAN S EXEC CHAIR, CTO. · indirect
Sold at will
$10.78M 50,000 at 215.51
2.0%
Not planned
23 May 2024
States Lauren Director
Sold at will
$250.42K 1,148 at 218.14
7.7%
Not planned
3 May 2024
Dugas Eric J. EVP CHIEF FINANCIAL OFFICER
Sold at will
$1.29M 6,200 at 208.74
22.4%
Not planned
27 Mar 2024
Weber Brian P EVP (CHESI)
Sold at will
$1.59M 7,996 at 199.07
11.3%
Not planned
15 Mar 2024
Sold at will
$2.87M 15,276 at 187.71
18.5%
Not planned
14 Mar 2024
PRESTON JOHN T Director
Sold at will
$360.33K 1,913 at 188.36
28.6%
Not planned
27 Feb 2024
MCKIM ALAN S EXEC CHAIR, CTO. · indirect
Sold at will
$6.38M 35,000 at 182.22
1.3%
Not planned
26 Feb 2024
MCKIM ALAN S EXEC CHAIR, CTO. · indirect
Sold at will
$6.44M 35,000 at 184.06
1.3%
Not planned
20 Dec 2023
MCKIM ALAN S EXEC CHAIR, CTO. · indirect
Sold at will
$3.11M 17,453 at 178.37
0.6%
Not planned
1 Dec 2023
Sold at will
$20.36K 122 at 166.86
3.5%
Not planned
22 Nov 2023
Sold at will
$1.32M 8,000 at 164.82
10.4%
Not planned
17 Nov 2023
MCKIM ALAN S EXEC CHAIR, CTO. · indirect
Sold at will
$7.67M 46,611 at 164.60
1.7%
Not planned
16 Nov 2023
MCKIM ALAN S EXEC CHAIR, CTO. · indirect
Sold at will
$4.67M 28,389 at 164.50
1.0%
Not planned
Showing 1–50 of 223. Page 1 of 5 Older →