Insider trading

Period: 120 months Stock: PESI Plan: Not on a plan × + 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.

93 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.

93 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.

93 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.

93 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.
93 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
93 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.

93 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
16 Sep 2025
Duggan Kerry C Director
Sold at will
$48.62K 5,653 at 8.60
60.6%
Sold half or more
11 Sep 2025
Shelton Larry Director
Bought
$8.58K 1,000 at 8.58
0.5%
11 Sep 2025
Duff Mark President and CEO
Bought
$7.22K 897 at 8.05
0.7%
9 Sep 2025
Shelton Larry Director
Bought
$9.61K 1,000 at 9.61
0.5%
30 May 2025
Duggan Kerry C Director
Sold at will
no price 16,634 shares
66.9%
Sold half or more
21 Mar 2025
Duff Mark President and CEO
Bought 3×
$14.42K 2,050 at 7.03
1.6%
21 Mar 2025
Naccarato Ben Chief Financial Officer
Bought
$2.80K 400 at 7.00
0.8%
Largest buy in 3 yrs
18 Mar 2025
Eshleman Troy Chief Operating Officer
Bought
$9.92K 1,350 at 7.35
opened
First buy on file
18 Mar 2025
Duff Mark President and CEO
Bought 2×
$7.15K 1,000 at 7.15
0.8%
17 Mar 2025
CENTOFANTI LOUIS F EVP of Strategic Initiatives
Bought
$7.31K 1,000 at 7.31
0.5%
4 Sep 2024
Duff Mark President and CEO
Bought 2×
$8.44K 850 at 9.93
0.8%
3 Sep 2024
Duff Mark President and CEO
Bought 2×
$12.79K 1,250 at 10.23
1.1%
5 Dec 2023
Lombardo Andy EVP of Nuclear & Technical Svc
Bought
$16.40K 2,150 at 7.63
14.1%
Largest buy in 3 yrs
1 Dec 2023
Duff Mark President and CEO
Bought 4×
$21.47K 3,000 at 7.16
2.8%
Largest buy in 3 yrs
1 Dec 2023
Shelton Larry Director
Bought
$14.40K 2,000 at 7.20
1.2%
Largest buy in 3 yrs
26 May 2023
REEDER JOE Director
Sold at will
$69.54K 6,009 at 11.57
2.7%
Not planned
17 May 2023
REEDER JOE Director
Sold at will
$223.51K 19,385 at 11.53
7.9%
Not planned
22 Dec 2022
CENTOFANTI LOUIS F EVP of Strategic Initiatives
Bought
$6.43K 1,700 at 3.78
1.0%
14 Dec 2022
Naccarato Ben Chief Financial Officer
Bought
$2.00K 575 at 3.47
15.1%
8 Dec 2022
CENTOFANTI LOUIS F EVP of Strategic Initiatives
Bought
$6.76K 2,000 at 3.38
1.2%
22 Nov 2022
Duff Mark President and CEO
Bought
$3.89K 1,000 at 3.89
2.5%
27 Sep 2022
CENTOFANTI LOUIS F EVP of Strategic Initiatives
Bought
$2.33K 500 at 4.65
0.3%
26 Sep 2022
CENTOFANTI LOUIS F EVP of Strategic Initiatives
Bought
$2.30K 500 at 4.60
0.3%
9 Sep 2022
CENTOFANTI LOUIS F EVP of Strategic Initiatives
Bought
$4.89K 1,000 at 4.89
0.6%
8 Sep 2022
Grondin Richard EVP of Waste Treatment Ops
Bought
$4.87K 1,000 at 4.87
×28
First buy on file
8 Sep 2022
CENTOFANTI LOUIS F EVP of Strategic Initiatives
Bought
$4.86K 1,000 at 4.86
0.6%
7 Sep 2022
CENTOFANTI LOUIS F EVP of Strategic Initiatives
Bought
$9.48K 2,000 at 4.74
1.2%
Largest buy in 3 yrs
7 Sep 2022
Duff Mark President and CEO
Bought 2×
$7.13K 1,500 at 4.75
3.9%
7 Sep 2022
Lombardo Andy EVP of Nuclear & Technical Svc
Bought 4×
$4.73K 1,000 at 4.73
16.9%
First buy on file
16 Jun 2022
Shelton Larry Director
Bought
$186.85 37 at 5.05
0.0%
13 Jun 2022
Shelton Larry Director
Bought
$5.33K 1,000 at 5.33
0.7%
3 Jun 2022
Naccarato Ben Chief Financial Officer
Bought
$2.75K 500 at 5.50
15.1%
First buy on file
12 May 2022
Duff Mark President and CEO
Bought 2×
$10.66K 1,922 at 5.55
5.3%
Largest buy in 3 yrs
11 May 2022
Duff Mark President and CEO
Bought
$436.80 78 at 5.60
0.2%
20 Dec 2021
Duff Mark President and CEO
Bought
$3.90K 600 at 6.50
3.1%
17 Dec 2021
Duff Mark President and CEO
Bought 2×
$6.81K 1,037 at 6.57
5.7%
Largest buy in 3 yrs
15 Dec 2021
CENTOFANTI LOUIS F EVP of Strategic Initiatives
Bought
$6.81K 1,000 at 6.81
0.6%
Largest buy in 3 yrs
4 Jan 2021
Shelton Larry Director
Bought
$10.72K 2,395 at 4.48
1.9%
Largest buy in 3 yrs
29 Dec 2020
Duff Mark President and CEO
Bought
$2.93K 500 at 5.85
2.8%
9 Nov 2020
Shelton Larry Director
Bought
$6.32K 1,000 at 6.32
0.8%
First buy on file
9 Nov 2020
CENTOFANTI LOUIS F EVP of Strategic Initiatives
Bought
$6.30K 1,000 at 6.30
0.6%
First buy on file
9 Nov 2020
Duff Mark President and CEO
Bought
$3.10K 500 at 6.20
2.9%
First buy on file
24 Sep 2020
CENTOFANTI LOUIS F EVP of Strategic Initiatives
Bought 2×
$6.71K 1,000 at 6.71
0.6%
First buy on file
12 Aug 2020
Duff Mark President and CEO
Bought
$137.00 20 at 6.85
0.1%
First buy on file
11 Aug 2020
Duff Mark President and CEO
Bought 3×
$12.26K 1,750 at 7.00
11.3%
First buy on file
11 Aug 2020
CENTOFANTI LOUIS F EVP of Strategic Initiatives
Bought
$7.01K 1,000 at 7.01
0.6%
First buy on file
26 Jun 2020
CENTOFANTI LOUIS F EVP of Strategic Initiatives
Bought
$6.15K 1,000 at 6.15
0.6%
First buy on file
14 May 2020
Naccarato Ben Chief Financial Officer
Bought 2×
$1.91K 318 at 6.00
10.6%
First buy on file
30 Mar 2020
Duff Mark President and CEO
Bought
$2.55K 500 at 5.10
3.3%
First buy on file
24 Mar 2020
Lombardo Andy EVP of Nuclear & Technical Svs
Bought 6×
$11.98K 2,500 at 4.79
73.5%
First buy on file
Showing 1–50 of 93. Page 1 of 2 Older →