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Aon plc

AON Clue Score60
Ireland Fiscal year ends December CIK 0000315293
273.47
-1.32%
Close, 9 Oct 2026 · USD

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
273.47 on 9 Oct 2026
381 325 269 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $353.36 14 Oct 2025 $360.51 15 Oct 2025 $355.80 16 Oct 2025 $343.12 17 Oct 2025 $346.60 20 Oct 2025 $344.11 21 Oct 2025 $343.43 22 Oct 2025 $343.10 23 Oct 2025 $341.35 24 Oct 2025 $337.73 27 Oct 2025 $336.87 28 Oct 2025 $329.96 29 Oct 2025 $326.07 30 Oct 2025 $328.19 31 Oct 2025 $340.68 3 Nov 2025 $339.84 4 Nov 2025 $344.21 5 Nov 2025 $341.70 6 Nov 2025 $340.00 7 Nov 2025 $346.32 10 Nov 2025 $344.87 11 Nov 2025 $349.93 12 Nov 2025 $350.11 13 Nov 2025 $350.94 14 Nov 2025 $350.13 17 Nov 2025 $350.02 18 Nov 2025 $348.54 19 Nov 2025 $344.17 20 Nov 2025 $345.89 21 Nov 2025 $346.51 24 Nov 2025 $344.70 25 Nov 2025 $350.96 26 Nov 2025 $352.61 28 Nov 2025 $353.92 1 Dec 2025 $351.17 2 Dec 2025 $345.70 3 Dec 2025 $344.45 4 Dec 2025 $347.71 5 Dec 2025 $345.20 8 Dec 2025 $343.39 9 Dec 2025 $346.19 10 Dec 2025 $340.05 11 Dec 2025 $347.40 12 Dec 2025 $353.79 15 Dec 2025 $354.10 16 Dec 2025 $351.80 17 Dec 2025 $352.03 18 Dec 2025 $353.02 19 Dec 2025 $350.04 22 Dec 2025 $355.46 23 Dec 2025 $355.87 24 Dec 2025 $356.65 26 Dec 2025 $356.65 29 Dec 2025 $356.73 30 Dec 2025 $356.49 31 Dec 2025 $352.88 2 Jan 2026 $344.27 5 Jan 2026 $351.29 6 Jan 2026 $349.67 7 Jan 2026 $349.92 8 Jan 2026 $351.97 9 Jan 2026 $350.80 12 Jan 2026 $350.49 13 Jan 2026 $344.59 14 Jan 2026 $346.00 15 Jan 2026 $344.84 16 Jan 2026 $343.86 20 Jan 2026 $339.50 21 Jan 2026 $332.76 22 Jan 2026 $335.96 23 Jan 2026 $338.69 26 Jan 2026 $338.87 27 Jan 2026 $330.75 28 Jan 2026 $333.00 29 Jan 2026 $342.95 30 Jan 2026 $349.64 2 Feb 2026 $349.61 3 Feb 2026 $346.84 4 Feb 2026 $350.21 5 Feb 2026 $343.36 6 Feb 2026 $342.04 9 Feb 2026 $310.34 10 Feb 2026 $317.92 11 Feb 2026 $309.97 12 Feb 2026 $314.49 13 Feb 2026 $321.70 17 Feb 2026 $325.96 18 Feb 2026 $322.98 19 Feb 2026 $324.30 20 Feb 2026 $325.07 23 Feb 2026 $315.31 24 Feb 2026 $319.33 25 Feb 2026 $324.66 26 Feb 2026 $330.27 27 Feb 2026 $335.47 2 Mar 2026 $337.80 3 Mar 2026 $339.07 4 Mar 2026 $341.18 5 Mar 2026 $338.77 6 Mar 2026 $340.60 9 Mar 2026 $332.84 10 Mar 2026 $320.96 11 Mar 2026 $316.90 12 Mar 2026 $315.91 13 Mar 2026 $321.41 16 Mar 2026 $326.75 17 Mar 2026 $321.18 18 Mar 2026 $317.88 19 Mar 2026 $316.99 20 Mar 2026 $325.63 23 Mar 2026 $325.97 24 Mar 2026 $327.03 25 Mar 2026 $321.45 26 Mar 2026 $323.77 27 Mar 2026 $313.66 30 Mar 2026 $324.06 31 Mar 2026 $322.78 1 Apr 2026 $321.34 2 Apr 2026 $323.14 6 Apr 2026 $326.17 7 Apr 2026 $322.47 8 Apr 2026 $329.76 9 Apr 2026 $325.40 10 Apr 2026 $312.57 13 Apr 2026 $325.40 14 Apr 2026 $323.02 15 Apr 2026 $328.08 16 Apr 2026 $335.34 17 Apr 2026 $331.80 20 Apr 2026 $331.95 21 Apr 2026 $335.32 22 Apr 2026 $326.86 23 Apr 2026 $323.56 24 Apr 2026 $321.14 27 Apr 2026 $323.78 28 Apr 2026 $321.68 29 Apr 2026 $322.49 30 Apr 2026 $311.65 1 May 2026 $311.51 4 May 2026 $314.92 5 May 2026 $314.55 6 May 2026 $308.27 7 May 2026 $313.59 8 May 2026 $312.79 11 May 2026 $312.07 12 May 2026 $316.35 13 May 2026 $310.90 14 May 2026 $315.41 15 May 2026 $317.22 18 May 2026 $326.57 19 May 2026 $323.66 20 May 2026 $321.15 21 May 2026 $324.22 22 May 2026 $324.78 26 May 2026 $319.29 27 May 2026 $318.54 28 May 2026 $318.30 29 May 2026 $316.06 1 Jun 2026 $320.41 2 Jun 2026 $317.86 3 Jun 2026 $315.60 4 Jun 2026 $322.24 5 Jun 2026 $328.53 8 Jun 2026 $325.85 9 Jun 2026 $331.59 10 Jun 2026 $336.33 11 Jun 2026 $335.17 12 Jun 2026 $335.31 15 Jun 2026 $329.51 16 Jun 2026 $331.45 17 Jun 2026 $326.69 18 Jun 2026 $317.74 22 Jun 2026 $313.63 23 Jun 2026 $320.74 24 Jun 2026 $325.48 25 Jun 2026 $315.95 26 Jun 2026 $328.69 29 Jun 2026 $327.57 30 Jun 2026 $331.69 1 Jul 2026 $343.56 2 Jul 2026 $357.46 6 Jul 2026 $356.91 7 Jul 2026 $359.82 8 Jul 2026 $357.51 9 Jul 2026 $355.56 10 Jul 2026 $356.94 13 Jul 2026 $367.35 14 Jul 2026 $358.89 15 Jul 2026 $355.15 16 Jul 2026 $368.63 17 Jul 2026 $367.21 20 Jul 2026 $362.78 21 Jul 2026 $359.40 22 Jul 2026 $352.33 23 Jul 2026 $355.78 24 Jul 2026 $361.70 27 Jul 2026 $367.17 28 Jul 2026 $381.26 29 Jul 2026 $377.16 30 Jul 2026 $366.57 31 Jul 2026 $360.55 3 Aug 2026 $357.63 4 Aug 2026 $356.65 5 Aug 2026 $359.97 6 Aug 2026 $360.75 7 Aug 2026 $358.30 10 Aug 2026 $356.97 11 Aug 2026 $356.46 12 Aug 2026 $352.36 13 Aug 2026 $357.08 14 Aug 2026 $355.83 17 Aug 2026 $347.22 18 Aug 2026 $343.20 19 Aug 2026 $348.43 20 Aug 2026 $351.93 21 Aug 2026 $355.11 24 Aug 2026 $359.10 25 Aug 2026 $354.83 26 Aug 2026 $353.98 27 Aug 2026 $349.56 28 Aug 2026 $355.40 31 Aug 2026 $321.52 1 Sep 2026 $326.30 2 Sep 2026 $330.88 3 Sep 2026 $327.00 4 Sep 2026 $323.09 8 Sep 2026 $315.79 9 Sep 2026 $304.69 10 Sep 2026 $307.77 11 Sep 2026 $302.69 14 Sep 2026 $311.54 15 Sep 2026 $304.67 16 Sep 2026 $300.57 17 Sep 2026 $296.05 18 Sep 2026 $295.64 21 Sep 2026 $290.82 22 Sep 2026 $286.10 23 Sep 2026 $281.60 24 Sep 2026 $276.09 25 Sep 2026 $277.99 28 Sep 2026 $272.10 29 Sep 2026 $275.90 30 Sep 2026 $276.77 1 Oct 2026 $275.95 2 Oct 2026 $269.45 5 Oct 2026 $272.05 6 Oct 2026 $273.99 7 Oct 2026 $270.47 8 Oct 2026 $277.12 9 Oct 2026 $273.47 Zeidel Darren General Counsel Sold at will $3.03M 5 Nov 2025 · at $344.52 · 30.3% of stake KNIGHT LESTER B Director Bought $1.28M 10 Feb 2026 · at $319.24 · 2.9% of stake Zeidel Darren General Counsel Sold on a plan $1.64M 17 Feb 2026 · at $325.79 · 19.9% of stake Zeidel Darren General Counsel Sold at will $1.42M 26 Feb 2026 · at $329.72 · 21.2% of stake Zeidel Darren General Counsel Sold on a plan $216.00K 7 Jul 2026 · at $360.00 · 3.8% of stake Zeidel Darren General Counsel Sold on a plan $725.50K 17 Jul 2026 · at $372.05 · 12.7% of stake Zeidel Darren General Counsel Sold on a plan $717.75K 28 Jul 2026 · at $377.76 · 14.2% of stake KNIGHT LESTER B Director Bought $6.55M 2 Sep 2026 · at $327.48 · 14.0% of stake
2 buys2 sales at will4 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$17.18B
Net income
$3.70B
Free cash flow
$3.22B
Operating margin
25.3%
Net margin
21.5%
Return on equity
39.5%
Return on capital
14.3%
Debt to equity
1.57
Revenue growth, 1 yr
9.5%
Revenue growth, 5 yr
9.2% a year
EPS growth, 1 yr
36.3%

Revenue and net income

Fiscal years, as filed with the SEC · point at a year for the detail
11.1B 2B FY20 Fiscal year 2020 Revenue $11.07B Net income $1.97B Margin 17.8% 12.2B 1.3B FY21 Fiscal year 2021 Revenue $12.19B Net income $1.26B Margin 10.3% · growth +10.2% 12.5B 2.6B FY22 Fiscal year 2022 Revenue $12.48B Net income $2.59B Margin 20.7% · growth +2.3% 13.4B 2.6B FY23 Fiscal year 2023 Revenue $13.38B Net income $2.56B Margin 19.2% · growth +7.2% 15.7B 2.7B FY24 Fiscal year 2024 Revenue $15.70B Net income $2.65B Margin 16.9% · growth +17.4% 17.2B 3.7B FY25 Fiscal year 2025 Revenue $17.18B Net income $3.70B Margin 21.5% · growth +9.4%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
2 Sep 2026 KNIGHT LESTER B
Director
Bought $6.55M 14.0%
28 Jul 2026 Zeidel Darren
General Counsel
Sold on a plan $717.75K 14.2%
17 Jul 2026 Zeidel Darren
General Counsel
Sold on a plan $725.50K 12.7%
7 Jul 2026 Zeidel Darren
General Counsel
Sold on a plan $216.00K 3.8%
26 Feb 2026 Zeidel Darren
General Counsel
Sold at will $1.42M 21.2%
17 Feb 2026 Zeidel Darren
General Counsel
Sold on a plan $1.64M 19.9%