Insider trading

Period: 12 months Stock: HDSN + 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.

26 decisions over 12 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.

26 decisions over 12 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.

26 decisions over 12 months
The trade

Minimum amount

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

26 decisions over 12 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.
26 decisions over 12 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
26 decisions over 12 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.

26 decisions over 12 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
5 Dec 2025
COLEMAN BRIAN F Director
Sold at will
$3.59M 484,616 at 7.40
20.0%
Not planned
17 Nov 2025
Bought
$23.75K 3,500 at 6.79
2.1%
Largest buy in 3 yrs
Showing 1–26 of 26.