Insider trading

Period: 120 months Stock: ALG Role: CEO × + Add filter Clear all
Views & alerts

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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.

23 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.

23 decisions over 120 months Remove this filter
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.

23 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.

23 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.
23 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
23 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.

23 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
9 Mar 2026
Hureau Robert Paul President & CEO
Bought
$75.62K 460 at 164.40
3.8%
26 Nov 2025
Hureau Robert Paul President & CEO
Bought 2×
$49.70K 304 at 163.48
2.6%
14 Nov 2025
Hureau Robert Paul President & CEO
Bought
$24.85K 154 at 161.36
1.3%
13 Nov 2025
Hureau Robert Paul President & CEO
Bought
$100.66K 600 at 167.77
5.5%
First buy on file
22 Aug 2025
Leonard Jeffery Allen President & CEO
Sold at will 2×
$555.48K 2,500 at 222.19
6.1%
Not planned
14 May 2025
Leonard Jeffery Allen President & CEO
Sold at will 2×
$705.32K 3,500 at 201.52
7.9%
Not planned
25 Nov 2024
Leonard Jeffery Allen President & CEO
Sold at will
$204.10K 1,000 at 204.10
2.8%
Not planned
6 Nov 2024
Leonard Jeffery Allen President & CEO
Sold at will
$199.60K 1,000 at 199.60
2.7%
Not planned
14 Aug 2023
Leonard Jeffery Allen President & CEO
Sold at will 2×
$100.75K 583 at 172.81
1.9%
Not planned
10 Nov 2021
Leonard Jeffery Allen President & CEO
Sold, plan not stated
$79.15K 503 at 157.37
2.7%
28 May 2021
ROBINSON RONALD A President & CEO
Sold, plan not stated 2×
$238.11K 1,546 at 154.01
0.7%
27 May 2021
ROBINSON RONALD A President & CEO
Sold, plan not stated 4×
$296.21K 1,937 at 152.92
0.8%
26 May 2021
ROBINSON RONALD A President & CEO
Sold, plan not stated 3×
$272.12K 1,788 at 152.19
0.8%
25 May 2021
ROBINSON RONALD A President & CEO
Sold, plan not stated 4×
$264.43K 1,737 at 152.23
0.7%
16 May 2019
ROBINSON RONALD A President & CEO
Sold, plan not stated 2×
$877.95K 9,000 at 97.55
3.7%
13 May 2019
ROBINSON RONALD A President & CEO
Sold, plan not stated 3×
$812.33K 8,000 at 101.54
3.3%
8 May 2019
ROBINSON RONALD A President & CEO
Sold, plan not stated
$832.09K 8,000 at 104.01
3.2%
14 May 2018
ROBINSON RONALD A President & CEO
Sold, plan not stated 2×
$519.48K 5,500 at 94.45
2.3%
11 May 2018
ROBINSON RONALD A President & CEO
Sold, plan not stated
$612.89K 6,500 at 94.29
2.7%
10 May 2018
ROBINSON RONALD A President & CEO
Sold, plan not stated 2×
$606.31K 6,500 at 93.28
2.6%
9 May 2018
ROBINSON RONALD A President & CEO
Sold, plan not stated 4×
$598.84K 6,500 at 92.13
2.6%
10 May 2017
ROBINSON RONALD A President & CEO
Sold, plan not stated 3×
$597.84K 7,245 at 82.52
3.5%
9 May 2017
ROBINSON RONALD A President & CEO
Sold, plan not stated 2×
$1.50M 17,755 at 84.27
8.0%
Showing 1–23 of 23.