Insider trading

Period: 120 months Stock: AMTX + 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.

78 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.

78 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.

78 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.

78 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.
78 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
78 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.

78 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
10 Jun 2026
Sold at will
$20.50K 10,000 at 2.05
19.0%
Not planned
14 Aug 2025
BARTON FRANCIS P Director
Sold at will 4×
$67.02K 26,452 at 2.53
11.3%
Not planned
23 May 2024
BLOCK JOHN R Director
Sold at will
$180.01K 51,580 at 3.49
78.7%
Sold half or more
12 Sep 2023
Sold at will 3×
$84.69K 15,000 at 5.65
47.7%
Not planned
16 Jun 2023
BLOCK JOHN R Director
Sold at will
$121.01K 19,205 at 6.30
41.4%
Not planned
14 Mar 2022
BLOCK JOHN R Director
Sold, plan not stated 3×
$668.45K 55,165 at 12.12
61.5%
Sold half or more
14 Mar 2022
BLOCK JOHN R Director
Bought
$125.67K 10,371 at 12.12
75.6%
First buy on file
20 Dec 2021
Bought
$12.21K 1,000 at 12.21
20.0%
First buy on file
8 Nov 2021
FOSTER ANDREW B Executive Vice President
Sold, plan not stated
$220.12K 9,533 at 23.09
100%
Sold half or more
5 Nov 2021
FOSTER ANDREW B Executive Vice President
Sold, plan not stated
$29.90K 1,300 at 23.00
12.0%
3 Nov 2021
BARTON FRANCIS P Director
Sold, plan not stated
$222.96K 10,555 at 21.12
44.0%
2 Nov 2021
BARTON FRANCIS P Director
Sold, plan not stated
$199.59K 9,445 at 21.13
28.2%
25 Oct 2021
FOSTER ANDREW B Executive Vice President
Sold, plan not stated
$227.18K 11,317 at 20.07
100%
Sold half or more
22 Oct 2021
FOSTER ANDREW B Executive Vice President
Sold, plan not stated
$2.00K 100 at 20.00
0.9%
21 Oct 2021
FOSTER ANDREW B Executive Vice President
Sold, plan not stated
$4.25K 213 at 19.96
1.8%
20 Oct 2021
FOSTER ANDREW B Executive Vice President
Sold, plan not stated
$286.24K 15,000 at 19.08
100%
Sold half or more
18 Oct 2021
FOSTER ANDREW B Executive Vice President
Sold, plan not stated 4×
$1.27M 71,167 at 17.90
100%
Sold half or more
16 Sep 2021
Gupta Sanjeev Executive Vice President, MD
Sold, plan not stated 3×
$1.79M 124,500 at 14.37
99.9%
Sold half or more
16 Sep 2021
BLOCK JOHN R Director
Sold, plan not stated
$202.26K 14,511 at 13.94
26.6%
15 Sep 2021
Gupta Sanjeev Executive Vice President, MD
Sold, plan not stated
$712.50K 50,000 at 14.25
79.3%
Sold half or more
15 Sep 2021
FOSTER ANDREW B Executive Vice President
Sold, plan not stated
$120.36K 8,548 at 14.08
100%
Sold half or more
16 Jun 2021
Gupta Sanjeev Executive Vice President, MD
Sold, plan not stated
$756.71K 53,269 at 14.21
83.0%
Sold half or more
26 May 2021
BLOCK JOHN R Director
Sold, plan not stated
$177.53K 15,023 at 11.82
21.6%
25 May 2021
BLOCK JOHN R Director
Sold, plan not stated
$58.52K 4,977 at 11.76
8.4%
22 Apr 2021
FOSTER ANDREW B Executive Vice President
Sold, plan not stated
$624.00K 32,170 at 19.40
79.0%
Sold half or more
22 Apr 2021
Waltz Todd Executive Vice President, CFO
Sold, plan not stated
$448.05K 23,099 at 19.40
12.1%
20 Apr 2021
FOSTER ANDREW B Executive Vice President
Sold, plan not stated
$177.08K 10,000 at 17.71
53.9%
Sold half or more
19 Apr 2021
FOSTER ANDREW B Executive Vice President
Sold, plan not stated
$4.40M 236,163 at 18.65
92.7%
Sold half or more
19 Apr 2021
Waltz Todd Executive Vice President, CFO
Sold, plan not stated
$1.01M 51,170 at 19.67
21.1%
19 Apr 2021
Gupta Sanjeev Executive Vice President, MD
Sold, plan not stated
$732.01K 36,449 at 20.08
92.4%
Sold half or more
17 Mar 2021
Gupta Sanjeev Executive Vice President, MD
Sold, plan not stated
$1.73M 91,270 at 18.92
96.9%
Sold half or more
17 Mar 2021
FOSTER ANDREW B Executive Vice President
Sold, plan not stated
$986.48K 52,150 at 18.92
90.6%
Sold half or more
17 Mar 2021
Waltz Todd Executive Vice President, CFO
Sold, plan not stated 2×
$896.06K 47,355 at 18.92
22.0%
16 Mar 2021
Gupta Sanjeev Executive Vice President, MD
Sold, plan not stated
$924.28K 47,293 at 19.54
33.4%
16 Mar 2021
FOSTER ANDREW B Executive Vice President
Sold, plan not stated
$641.03K 32,800 at 19.54
36.3%
16 Mar 2021
Waltz Todd Executive Vice President, CFO
Sold, plan not stated
$567.65K 29,045 at 19.54
14.9%
15 Mar 2021
BLOCK JOHN R Director
Sold, plan not stated
$688.18K 36,000 at 19.12
39.7%
15 Mar 2021
FOSTER ANDREW B Executive Vice President
Sold, plan not stated
$577.77K 29,000 at 19.92
32.2%
15 Mar 2021
Waltz Todd Executive Vice President, CFO
Sold, plan not stated
$518.00K 26,000 at 19.92
11.8%
12 Mar 2021
BARTON FRANCIS P Director
Sold, plan not stated
$400.00K 20,000 at 20.00
59.8%
Sold half or more
2 Mar 2021
BARTON FRANCIS P Director
Sold, plan not stated
$150.02K 10,000 at 15.00
42.6%
1 Mar 2021
BARTON FRANCIS P Director
Sold, plan not stated
$240.00K 20,000 at 12.00
59.8%
Sold half or more
25 Feb 2021
BARTON FRANCIS P Director
Sold, plan not stated
$200.06K 20,000 at 10.00
59.8%
Sold half or more
22 Feb 2021
Waltz Todd Executive Vice President, CFO
Sold, plan not stated
$82.70K 10,000 at 8.27
5.7%
19 Feb 2021
Waltz Todd Executive Vice President, CFO
Sold, plan not stated
$81.50K 10,000 at 8.15
5.7%
18 Feb 2021
Waltz Todd Executive Vice President, CFO
Sold, plan not stated
$80.70K 10,000 at 8.07
5.7%
17 Feb 2021
Waltz Todd Executive Vice President, CFO
Sold, plan not stated
$88.00K 10,000 at 8.80
5.7%
16 Feb 2021
BARTON FRANCIS P Director
Sold, plan not stated 2×
$180.02K 20,000 at 9.00
59.8%
Sold half or more
16 Feb 2021
Waltz Todd Executive Vice President, CFO
Sold, plan not stated
$78.00K 10,000 at 7.80
5.7%
12 Feb 2021
Waltz Todd Executive Vice President, CFO
Sold, plan not stated
$72.40K 10,000 at 7.24
5.7%
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