Insider trading

Period: 120 months Stock: AON Plan: Discretionary × + 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.

19 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.

19 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.

19 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.

19 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.
19 decisions over 120 months Remove this filter
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
19 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.

19 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%
26 Feb 2026
Zeidel Darren General Counsel
Sold at will
$1.42M 4,300 at 329.72
21.2%
Not planned
10 Feb 2026
KNIGHT LESTER B Director · indirect
Bought
$1.28M 4,000 at 319.24
2.9%
5 Nov 2025
Zeidel Darren General Counsel
Sold at will 2×
$3.03M 8,800 at 344.52
30.3%
Not planned
27 Nov 2024
Simon Mindy F. Chief Operating Officer
Sold at will
$256.32K 650 at 394.34
26.4%
Not planned
26 Nov 2024
Stevens Lisa Chief Administrative Officer
Sold at will
$494.29K 1,275 at 387.68
13.6%
Not planned
28 Aug 2024
Spruell Byron Director
Bought
$246.56K 725 at 340.08
15.8%
12 Aug 2024
Zeidel Darren General Counsel
Sold at will
$312.69K 950 at 329.15
3.9%
Not planned
12 Aug 2024
Stevens Lisa Chief Administrative Officer
Sold at will
$131.58K 400 at 328.95
4.1%
Not planned
3 May 2024
KNIGHT LESTER B Director · indirect
Bought 6×
$2.77M 10,000 at 276.61
7.8%
6 Mar 2024
Stevens Lisa Chief People Officer
Sold at will
$99.69K 315 at 316.31
3.1%
Not planned
1 Mar 2024
Andersen Eric President
Sold at will
$1.73M 5,500 at 313.74
3.2%
Not planned
23 Feb 2024
Stevens Lisa Chief People Officer
Sold at will
$4.10M 13,000 at 315.26
56.3%
Sold half or more
16 Feb 2024
Davies Christa Chief Financial Officer
Sold at will
$12.58M 40,164 at 313.29
20.1%
Not planned
15 Feb 2024
Neller Michael Principal Accounting Officer
Sold at will
$234.00K 750 at 312.00
16.2%
Not planned
12 Feb 2024
Davies Christa Chief Financial Officer
Sold at will 3×
$6.42M 20,618 at 311.40
11.4%
Not planned
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
9 May 2023
Andersen Eric President
Sold at will
$2.52M 7,500 at 335.55
4.9%
Not planned
Showing 1–19 of 19.