Insider trading

Period: 120 months Stock: AMG 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.

20 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.

20 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.

20 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.

20 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.
20 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
20 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.

20 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
8 Jun 2026
Horgen Jay C. President and CEO
Sold at will
$5.92M 17,500 at 338.27
7.9%
Not planned
6 May 2026
Sold at will
$1.04M 3,402 at 305.06
75.7%
Sold half or more
6 Mar 2026
Wojcik Thomas M President and COO
Sold at will
$2.29M 8,000 at 286.30
4.8%
Not planned
9 Sep 2025
Wojcik Thomas M President and COO
Sold at will
$3.70M 16,000 at 231.03
9.2%
Not planned
20 Aug 2024
Horgen Jay C. President and CEO
Sold at will
$1.58M 9,300 at 169.93
2.5%
Not planned
19 Aug 2024
Horgen Jay C. President and CEO
Sold at will
$1.55M 9,000 at 171.98
2.3%
Not planned
16 Aug 2024
Jamal Rizwan M Head of Affiliate Investments
Sold at will
$1.49M 8,622 at 172.89
6.3%
Not planned
30 Aug 2019
DALTON NATHANIEL Director
Sold, plan not stated
$1.77M 23,000 at 76.86
9.9%
28 Jun 2019
Sold, plan not stated
$5.01M 54,350 at 92.22
72.6%
Sold half or more
10 May 2019
Horgen Jay C. President and CFO
Bought
$1.03M 11,000 at 93.19
10.5%
First buy on file
8 Mar 2018
Horgen Jay C. CFO and Treasurer
Sold, plan not stated
$2.85M 15,000 at 190.05
13.2%
7 Mar 2018
Horgen Jay C. CFO and Treasurer
Sold, plan not stated
$2.84M 15,000 at 189.12
11.6%
5 Dec 2017
MacEwen Peter W Chief Administrative Officer
Sold, plan not stated
$1.98M 10,000 at 197.67
26.5%
17 Nov 2017
HEALEY SEAN M CEO and Chairman
Sold, plan not stated
$12.95M 69,800 at 185.48
43.5%
9 Nov 2017
Ryan Patrick T Director
Sold, plan not stated
$1.43M 7,705 at 185.27
62.0%
Sold half or more
13 Jun 2017
HEALEY SEAN M CEO and Chairman
Sold, plan not stated
$9.17M 56,928 at 161.07
32.9%
19 May 2017
Ryan Patrick T Director
Sold, plan not stated
$1.36M 8,902 at 152.89
65.4%
Sold half or more
9 Feb 2017
Horgen Jay C. CFO and Treasurer
Sold, plan not stated
$11.45M 70,000 at 163.58
40.0%
15 Dec 2016
HEALEY SEAN M CEO and Chairman
Sold, plan not stated
$5.45M 35,568 at 153.27
27.1%
14 Dec 2016
HEALEY SEAN M CEO and Chairman
Sold, plan not stated
$4.15M 26,432 at 156.95
21.6%
Showing 1–20 of 20.