Insider trading

Period: 120 months Stock: TUSK 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.

29 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.

29 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.

29 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.

29 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.
29 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
29 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.

29 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
16 Sep 2026
Bought
$15.00K 5,000 at 3.00
opened
First buy on file
17 Jun 2026
WEXFORD CAPITAL LP Chief Business Officer · indirect
Bought
$10.47M 4,019,574 at 2.60
60.9%
First buy in 3+ yrs
12 Jun 2026
Amron Arthur H Director
Bought
$6.56K 2,000 at 3.28
3.1%
11 Jun 2026
Amron Arthur H Director
Bought
$8.05K 2,500 at 3.22
4.0%
28 May 2026
Amron Arthur H Director
Bought
$9.75K 3,000 at 3.25
5.0%
26 May 2026
Amron Arthur H Director
Bought
$8.10K 2,500 at 3.24
4.4%
11 Dec 2025
Amron Arthur H Director
Bought
$18.90K 10,000 at 1.89
21.2%
Largest buy in 3 yrs
12 Dec 2024
Amron Arthur H Director
Bought
$2.97K 1,000 at 2.97
2.2%
30 May 2024
Amron Arthur H Director
Bought
$10.94K 3,000 at 3.65
19.6%
28 May 2024
Amron Arthur H Director
Bought
$7.15K 2,000 at 3.57
15.1%
12 Mar 2024
Amron Arthur H Director
Bought
$11.16K 3,000 at 3.72
29.2%
First buy on file
17 Jun 2022
WEXFORD CAPITAL LP Director · indirect
Bought
$22.58K 10,382 at 2.17
0.0%
16 Jun 2022
WEXFORD CAPITAL LP Director · indirect
Bought
$74.40K 35,000 at 2.13
0.2%
15 Jun 2022
WEXFORD CAPITAL LP Director · indirect
Bought
$11.38K 5,100 at 2.23
0.0%
14 Jun 2022
WEXFORD CAPITAL LP Director · indirect
Bought
$46.97K 20,600 at 2.28
0.1%
13 Jun 2022
WEXFORD CAPITAL LP Director · indirect
Bought
$59.00K 25,102 at 2.35
0.1%
10 Jun 2022
WEXFORD CAPITAL LP Director · indirect
Bought
$134.51K 54,779 at 2.46
0.2%
Largest buy in 3 yrs
9 Jun 2022
WEXFORD CAPITAL LP Director · indirect
Bought
$68.16K 27,489 at 2.48
0.1%
Largest buy in 3 yrs
8 Jun 2022
WEXFORD CAPITAL LP Director · indirect
Bought
$38.71K 15,500 at 2.50
0.1%
First buy on file
13 Dec 2021
SMITH ARTHUR L Director
Bought
$50.00K 25,000 at 2.00
16.1%
First buy on file
4 Sep 2020
SMITH ARTHUR L Director
Bought
$25.80K 20,000 at 1.29
18.2%
First buy on file
20 Nov 2019
WEXFORD CAPITAL LP Director · indirect
Bought
$22.17K 16,692 at 1.33
0.1%
First buy on file
13 Nov 2019
WEXFORD CAPITAL LP Director · indirect
Bought
$48.89K 35,904 at 1.36
0.2%
First buy on file
25 Aug 2017
Palm James D Director
Bought
$25.20K 2,000 at 12.60
18.7%
First buy on file
24 Aug 2017
Palm James D Director
Bought
$51.32K 4,000 at 12.83
59.7%
First buy on file
9 Jun 2017
SMITH ARTHUR L Director · indirect
Bought
$101.46K 6,000 at 16.91
opened
First buy on file
28 Feb 2017
Straehla Arty Chief Executive Officer · indirect
Bought
$10.01K 460 at 21.76
opened
First buy on file
19 Oct 2016
Layton Mark E. CFO and Secretary
Bought
$45.00K 3,000 at 15.00
opened
First buy on file
19 Oct 2016
Straehla Arty Chief Executive Officer · indirect
Bought 2×
$19.98K 1,332 at 15.00
opened
First buy on file
Showing 1–29 of 29.