Insider trading

Period: 120 months Stock: ACM Minimum amount: $1M × + 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.

28 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.

28 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.

28 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.

28 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.
28 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
28 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.

28 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
17 Dec 2025
Poloni Lara PRESIDENT
Sold on a plan 2×
$1.70M 17,533 at 97.02
10.5%
Planned (10b5-1)
15 Aug 2025
Rudd Troy CHIEF EXECUTIVE OFFICER
Sold on a plan 2×
$6.35M 53,097 at 119.56
100%
Sold half or more
16 Dec 2024
Gan David Y. CHIEF LEGAL OFFICER
Sold on a plan 2×
$1.28M 11,500 at 111.46
18.6%
Planned (10b5-1)
6 Nov 2024
Kapoor Gaurav CHIEF FINANCIAL OFFICER (PAO)
Sold on a plan
$4.89M 42,400 at 115.34
57.6%
Sold half or more
3 Oct 2024
Rudd Troy CHIEF EXECUTIVE OFFICER · indirect
Sold on a plan 3×
$3.42M 33,334 at 102.58
15.8%
Planned (10b5-1)
2 Oct 2024
Rudd Troy CHIEF EXECUTIVE OFFICER · indirect
Sold on a plan 2×
$3.40M 33,333 at 102.07
13.6%
Planned (10b5-1)
1 Oct 2024
Rudd Troy CHIEF EXECUTIVE OFFICER · indirect
Sold on a plan 2×
$3.42M 33,333 at 102.71
12.0%
Planned (10b5-1)
15 Aug 2024
Rudd Troy CHIEF EXECUTIVE OFFICER
Sold on a plan 2×
$3.34M 34,710 at 96.36
11.1%
Planned (10b5-1)
15 Dec 2023
Rudd Troy CHIEF EXECUTIVE OFFICER
Sold on a plan 2×
$2.32M 25,000 at 92.76
8.8%
Planned (10b5-1)
14 Dec 2023
Poloni Lara PRESIDENT
Sold at will
$2.84M 30,692 at 92.50
36.3%
Not planned
15 Aug 2023
Rudd Troy CHIEF EXECUTIVE OFFICER
Sold on a plan 2×
$6.90M 78,097 at 88.33
29.6%
Planned (10b5-1)
13 Mar 2023
Sold, plan not stated
$1.71M 20,618 at 82.92
31.8%
16 Dec 2022
Rudd Troy CHIEF EXECUTIVE OFFICER
Sold, plan not stated 2×
$11.49M 139,308 at 82.51
43.2%
25 Oct 2021
Sold, plan not stated
$2.06M 29,792 at 69.00
33.3%
25 Aug 2021
Sold, plan not stated
$1.97M 29,792 at 66.00
25.0%
27 Dec 2019
Vollmer John C. Group President, MS
Sold, plan not stated
$1.31M 30,240 at 43.28
72.6%
Sold half or more
22 Nov 2019
Feld Peter A Director · indirect
Bought
$8.51M 200,000 at 42.56
3.5%
First buy on file
15 Nov 2019
Morriss Steve Group President, Design and Co
Sold, plan not stated
$1.21M 28,160 at 43.12
100%
Sold half or more
12 Dec 2017
Burke Michael S Chairman & CEO
Sold, plan not stated
$1.17M 30,000 at 39.00
16.0%
5 Oct 2017
Burke Michael S Chairman & CEO
Sold, plan not stated
$2.09M 56,800 at 36.86
25.7%
27 Sep 2017
Burke Michael S Chairman & CEO
Sold, plan not stated
$1.11M 30,000 at 37.00
16.3%
25 Jan 2017
Burke Michael S Chairman & CEO
Sold, plan not stated
$1.17M 30,000 at 39.00
14.0%
3 Jan 2017
Werner Frederick W Pres, Design & Conslt Services
Sold, plan not stated
$1.10M 29,952 at 36.72
31.5%
16 Dec 2016
Kadenacy Stephen M President
Sold, plan not stated
$1.51M 39,632 at 38.16
41.2%
7 Dec 2016
Tishman Daniel R. Vice Chairman
Sold, plan not stated
$1.17M 30,000 at 39.00
17.7%
14 Nov 2016
Tishman Daniel R. Vice Chairman
Sold, plan not stated 2×
$2.16M 60,000 at 36.00
26.2%
14 Nov 2016
Burke Michael S Chairman & CEO
Sold, plan not stated
$1.05M 30,000 at 35.00
26.4%
9 Nov 2016
Burke Michael S Chairman & CEO
Sold, plan not stated
$1.65M 53,100 at 31.00
31.9%
Showing 1–28 of 28.