Insider trading

Period: 120 months Stock: HDSN Type of trade: Bought × + 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.

40 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.

40 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.

40 decisions over 120 months Remove this filter
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

40 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.
40 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
40 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.

40 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
24 Sep 2026
Bought
$604.45K 118,549 at 5.10
2.3%
23 Sep 2026
Bought
$56.17K 11,013 at 5.10
0.2%
21 Sep 2026
Bought
$12.76K 2,502 at 5.10
0.0%
16 Sep 2026
Bought
$56.79K 11,136 at 5.10
0.2%
2 Sep 2026
Bought
$27.12K 5,317 at 5.10
0.1%
25 Aug 2026
Bought
$501.09K 91,166 at 5.50
1.8%
24 Aug 2026
Bought
$51.95K 9,446 at 5.50
0.2%
12 Aug 2026
Bought
$28.59K 5,198 at 5.50
0.1%
29 Jul 2026
Bought
$312.10K 52,104 at 5.99
1.0%
21 Jul 2026
Bought
$285.74K 47,708 at 5.99
1.0%
20 Jul 2026
Bought
$106.86K 17,842 at 5.99
0.4%
7 Jul 2026
Bought
$3.59K 600 at 5.99
0.0%
6 Jul 2026
Bought
$27.76K 4,634 at 5.99
0.1%
2 Jul 2026
Bought
$1.62M 271,302 at 5.97
5.8%
1 Jul 2026
Bought
$1.70M 288,111 at 5.88
6.5%
Largest buy in 3 yrs
30 Jun 2026
Bought
$1.16M 204,789 at 5.68
4.9%
First buy on file
19 May 2026
Bertaux Brian J. Chief Financial Officer
Bought
$9.74K 2,000 at 4.87
opened
First buy on file
14 May 2026
Feeler Jeffrey R Director
Bought
$25.09K 5,100 at 4.92
125%
First buy on file
14 May 2026
Parrillo Richard Director
Bought 2×
$24.81K 5,000 at 4.96
24.3%
First buy on file
14 May 2026
Bought 2×
$24.81K 5,000 at 4.96
24.3%
First buy on file
14 May 2026
Bought
$2.66K 550 at 4.85
5.2%
First buy on file
13 May 2026
Sheriff Alan Director
Bought
$25.35K 5,200 at 4.88
128%
First buy on file
13 May 2026
Gaglione Kenneth President and CEO · indirect
Bought
$24.48K 5,000 at 4.90
opened
First buy on file
13 May 2026
Prouty Eric A Director
Bought
$24.20K 5,000 at 4.84
3.4%
First buy on file
17 Nov 2025
Bought
$23.75K 3,500 at 6.79
2.1%
Largest buy in 3 yrs
7 Nov 2024
Bought
$14.95K 2,500 at 5.98
1.6%
Largest buy in 3 yrs
14 Mar 2023
Bought
$8.27K 1,000 at 8.27
0.8%
First buy on file
17 Aug 2021
COLEMAN BRIAN F President, CEO
Bought 3×
$72.25K 25,000 at 2.89
5.1%
First buy on file
8 May 2019
Prouty Eric A Director
Bought
$9.45K 5,000 at 1.89
6.6%
First buy on file
12 Dec 2018
Prouty Eric A Director
Bought
$8.20K 5,000 at 1.64
7.1%
First buy on file
15 Aug 2018
Prouty Eric A Director
Bought
$9.05K 5,000 at 1.81
7.6%
First buy on file
30 May 2018
Parrillo Richard Director
Bought 5×
$56.86K 25,000 at 2.27
32.7%
First buy on file
24 May 2018
Prouty Eric A Director
Bought
$11.65K 5,000 at 2.33
10.1%
First buy on file
23 May 2018
ZUGIBE KEVIN J Chairman, CEO
Bought 3×
$42.26K 20,000 at 2.11
0.6%
First buy on file
15 Mar 2018
ZUGIBE KEVIN J Chairman, CEO
Bought
$27.55K 5,000 at 5.51
0.1%
First buy on file
15 Mar 2018
COLEMAN BRIAN F President, COO
Bought
$11.02K 2,000 at 5.51
0.4%
First buy on file
15 Mar 2018
MANDRACCHIA STEPHEN P VP Legal & Regulatory · indirect
Bought
$11.02K 2,000 at 5.51
0.2%
First buy on file
15 Mar 2018
ABBATECOLA VINCENT P Director · indirect
Bought
$5.50K 1,000 at 5.50
0.9%
First buy on file
17 Dec 2017
Bought
$11.52K 2,000 at 5.76
0.8%
First buy on file
15 Dec 2017
Parrillo Richard Director
Bought 2×
$57.95K 10,000 at 5.80
8.1%
First buy on file
Showing 1–40 of 40.