Insider trading

Period: 120 months Stock: HDSN Minimum amount: $100K × + 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.

33 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.

33 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.

33 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.

33 decisions over 120 months Remove this filter
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.
33 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
33 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.

33 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
24 Sep 2026
Bought
$604.45K 118,549 at 5.10
2.3%
25 Aug 2026
Bought
$501.09K 91,166 at 5.50
1.8%
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%
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
5 Dec 2025
COLEMAN BRIAN F Director
Sold at will
$3.59M 484,616 at 7.40
20.0%
Not planned
14 Dec 2023
Parrillo Richard Director
Sold at will 6×
$268.49K 20,205 at 13.29
10.1%
Not planned
13 Dec 2023
Parrillo Richard Director
Sold at will 5×
$289.63K 22,399 at 12.93
10.1%
Not planned
12 Dec 2023
Parrillo Richard Director
Sold at will 3×
$385.50K 30,000 at 12.85
11.9%
Not planned
14 Jun 2023
Prouty Eric A Director
Sold at will
$191.20K 20,000 at 9.56
12.3%
Not planned
12 Dec 2022
Gaglione Kenneth VP-Operations
Sold, plan not stated
$219.07K 19,000 at 11.53
85.6%
Sold half or more
9 Nov 2022
Sold, plan not stated
$467.95K 46,194 at 10.13
64.7%
Sold half or more
8 Nov 2022
Sold, plan not stated
$479.70K 45,000 at 10.66
38.7%
15 Jun 2022
Sold, plan not stated
$194.92K 20,000 at 9.75
13.7%
3 Jun 2022
Sold, plan not stated
$195.82K 20,000 at 9.79
12.1%
31 May 2022
MANDRACCHIA STEPHEN P Director · indirect
Sold, plan not stated
$541.11K 55,785 at 9.70
12.0%
31 May 2022
Sold, plan not stated
$270.55K 27,892 at 9.70
23.1%
27 May 2022
MANDRACCHIA STEPHEN P Director · indirect
Sold, plan not stated
$430.14K 44,215 at 9.73
8.7%
27 May 2022
Sold, plan not stated
$215.07K 22,108 at 9.73
15.5%
9 May 2022
Prouty Eric A Director
Sold, plan not stated
$675.00K 75,000 at 9.00
37.8%
11 Mar 2022
MANDRACCHIA STEPHEN P Director · indirect
Sold, plan not stated
$578.00K 100,000 at 5.78
15.8%
11 Mar 2022
Sold, plan not stated
$575.00K 100,000 at 5.75
41.2%
10 Dec 2021
Sold, plan not stated
$142.80K 35,320 at 4.04
17.8%
18 Nov 2021
MANDRACCHIA STEPHEN P Director · indirect
Sold, plan not stated
$433.79K 92,100 at 4.71
12.3%
18 Nov 2021
Sold, plan not stated
$433.79K 92,100 at 4.71
26.9%
17 Nov 2021
Sold, plan not stated
$952.00K 200,000 at 4.76
88.8%
Sold half or more
9 Aug 2021
MORCH OTTO C Director
Sold, plan not stated
$182.90K 57,211 at 3.20
60.7%
Sold half or more
25 May 2021
Sold, plan not stated
$180.30K 76,074 at 2.37
17.2%
25 May 2021
MANDRACCHIA STEPHEN P Director · indirect
Sold, plan not stated
$180.29K 76,073 at 2.37
10.8%
12 Mar 2021
MANDRACCHIA STEPHEN P Director · indirect
Sold, plan not stated 3×
$157.01K 100,000 at 1.57
12.4%
Showing 1–33 of 33.