Insider trading

Period: 120 months Stock: AON Type of trade: Bought × + 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.

15 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.

15 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.

15 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.

15 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.
15 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
15 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.

15 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
2 Sep 2026
KNIGHT LESTER B Director · indirect
Bought 6×
$6.55M 20,000 at 327.48
14.0%
10 Feb 2026
KNIGHT LESTER B Director · indirect
Bought
$1.28M 4,000 at 319.24
2.9%
28 Aug 2024
Spruell Byron Director
Bought
$246.56K 725 at 340.08
15.8%
3 May 2024
KNIGHT LESTER B Director · indirect
Bought 6×
$2.77M 10,000 at 276.61
7.8%
7 Feb 2024
KNIGHT LESTER B Director · indirect
Bought 2×
$15.10M 50,000 at 301.97
59.5%
Largest buy in 3 yrs
23 Aug 2023
Spruell Byron Director
Bought
$259.66K 800 at 324.58
25.0%
Largest buy in 3 yrs
23 Aug 2022
Spruell Byron Director
Bought
$116.69K 400 at 291.72
17.1%
Largest buy in 3 yrs
5 May 2022
KNIGHT LESTER B Director · indirect
Bought 2×
$4.01M 14,000 at 286.58
14.7%
Largest buy in 3 yrs
23 Nov 2021
Spruell Byron Director
Bought
$59.26K 200 at 296.32
14.6%
First buy on file
4 Aug 2021
KNIGHT LESTER B Director · indirect
Bought 4×
$2.64M 10,000 at 263.95
10.5%
Largest buy in 3 yrs
6 Nov 2020
BRUNO JOHN G Chief Operating Officer
Bought
$186.46K 1,000 at 186.46
1.5%
First buy on file
5 Nov 2020
KNIGHT LESTER B Director · indirect
Bought 2×
$1.87M 10,000 at 186.55
opened
First buy on file
13 May 2020
KNIGHT LESTER B Director · indirect
Bought 2×
$13.65M 70,000 at 195.00
233%
First buy on file
6 Aug 2018
Bought
$798.29K 5,550 at 143.84
362%
First buy on file
6 Feb 2018
KNIGHT LESTER B Director · indirect
Bought 2×
$8.31M 60,000 at 138.42
45.8%
First buy on file
Showing 1–15 of 15.