Aon (AON) Stock Buyback History
TTM buyback yield 1.81% · Shareholder yield (TTM) 1.81%.
AON
TTM buyback yield
1.81%
Shareholder yield (TTM)
1.81%
5Y share count change
-7.1%
TTM buyback spend
$1.25B
SBC coverage (TTM)
4.07x
YoY change in spend
0.0%
5Y CAGR of spend
-10.7%
Peak year (2021)
$3.54B
Cumulative spend
$31.91B
TTM metrics calculated from the four most recent reported quarters, ending (reported ).
Key takeaways
- Aon (AON) repurchased about $1.25B of stock over the trailing twelve months.
- Diluted share count is down 7.1% over the last ~5 fiscal years — buybacks are net-shrinking the share base.
- TTM buyback ÷ stock-based-comp ratio of 4.07× — repurchases more than cover SBC dilution.
- Cash buyback spend has compounded at -10.7% per year over the latest 5-year window.
- TTM repurchases used about 41% of free cash flow remaining after dividends.
Buyback context per fiscal year
Annual repurchases alongside stock-based compensation, diluted share count and the year-over-year change — useful for SBC-coverage and dilution-offset reading at a glance.
| Year | Buybacks | SBC | Net | Shares (dil.) | YoY shares | Buyback yield |
|---|---|---|---|---|---|---|
| 2025 | $1.00B | $0.00 | $1.00B | 0.22B | 1.9% | 1.32% |
| 2024 | $1.00B | $474.00M | $526.00M | 0.21B | 3.7% | 1.29% |
| 2023 | $2.70B | $438.00M | $2.26B | 0.20B | -3.8% | 4.63% |
| 2022 | $3.20B | $397.00M | $2.81B | 0.21B | -5.7% | 5.14% |
| 2021 | $3.54B | $449.00M | $3.09B | 0.23B | -3.0% | 5.38% |
| 2020 | $1.76B | $312.00M | $1.45B | 0.23B | -3.1% | 3.64% |
| 2019 | $1.96B | $317.00M | $1.64B | 0.24B | -2.6% | 4.01% |
| 2018 | $1.47B | $338.00M | $1.13B | 0.25B | -5.3% | 4.17% |
| 2017 | $2.40B | $319.00M | $2.08B | 0.26B | -3.6% | 7.12% |
| 2016 | $1.26B | $331.00M | $926.00M | 0.27B | -4.8% | 4.24% |
| 2015 | $1.55B | $340.00M | $1.21B | 0.28B | -5.3% | 6.10% |
| 2014 | $2.25B | $328.00M | $1.92B | 0.30B | -5.0% | 8.27% |
| 2013 | $1.10B | $300.00M | $802.00M | 0.32B | -5.2% | 4.29% |
| 2012 | $1.13B | $212.00M | $913.00M | 0.33B | -2.4% | 6.30% |
| 2011 | $828.00M | $235.00M | $593.00M | 0.34B | 14.4% | 5.35% |
| 2010 | $250.00M | $221.00M | $29.00M | 0.30B | 2.4% | 1.59% |
| 2009 | $478.00M | $209.00M | $269.00M | 0.29B | -3.3% | 4.52% |
| 2008 | $1.74B | $248.00M | $1.49B | 0.30B | -6.8% | 13.40% |
| 2007 | $523.00M | $204.00M | $319.00M | 0.32B | -5.6% | 3.61% |
| 2006 | $966.00M | $0.00 | $966.00M | 0.34B | 0.2% | 9.11% |
| 2005 | $75.00M | $0.00 | $75.00M | 0.34B | 1.5% | 0.64% |
| 2004 | $0.00 | $0.00 | $0.00 | 0.34B | 5.9% | — |
| 2003 | $6.00M | $0.00 | $6.00M | 0.32B | 10.5% | 0.08% |
| 2002 | $97.00M | $0.00 | $97.00M | 0.29B | 5.8% | 1.63% |
| 2001 | $0.00 | $0.00 | $0.00 | 0.27B | 2.6% | — |
| 2000 | $59.00M | $0.00 | $59.00M | 0.26B | 0.8% | — |
| 1999 | $66.00M | $0.00 | $66.00M | 0.26B | 1.3% | — |
| 1998 | $18.00M | $0.00 | $18.00M | 0.26B | 1.3% | — |
| 1997 | $136.00M | $0.00 | $136.00M | 0.26B | 1.1% | — |
| 1996 | $18.00M | $0.00 | $18.00M | 0.25B | — | — |
| 1995 | $121.80M | $0.00 | $121.80M | — | — | — |
| 1994 | $132.00M | $0.00 | $132.00M | — | — | — |
| 1993 | $11.40M | $0.00 | $11.40M | — | — | — |
| 1992 | $6.90M | $0.00 | $6.90M | — | — | — |
| 1991 | $33.20M | $0.00 | $33.20M | — | — | — |
| 1990 | $19.00M | $0.00 | $19.00M | — | — | — |
Cash buyback spend (USD) — annual & quarterly history
Trailing-twelve-month and per-period cash repurchases for Aon (AON) from the consolidated cash flow statement (line: common stock repurchased), in USD as filed.
Cash buyback spend over time for Aon (AON)
Per-period cash repurchases
Cash buyback spend annual + quarterly history for Aon (AON)
| Fiscal year | Period ended | Reported | Buyback Spend | YoY | YoY change |
|---|---|---|---|---|---|
| 2025 | $1.00B | 0.0% | $0 | ||
| 2024 | $1.00B | -63.0% | -$1.70B | ||
| 2023 | $2.70B | -15.7% | -$503.00M | ||
| 2022 | $3.20B | -9.6% | -$340.00M | ||
| 2021 | $3.54B | +101.0% | +$1.78B | ||
| 2020 | $1.76B | -10.1% | -$197.00M | ||
| 2019 | $1.96B | +33.3% | +$490.00M | ||
| 2018 | $1.47B | -38.7% | -$929.00M | ||
| 2017 | $2.40B | +90.9% | +$1.14B | ||
| 2016 | $1.26B | -18.9% | -$293.00M | ||
| 2015 | $1.55B | -31.1% | -$700.00M | ||
| 2014 | $2.25B | +104.2% | +$1.15B | ||
| 2013 | $1.10B | -2.0% | -$23.00M | ||
| 2012 | $1.13B | +35.9% | +$297.00M | ||
| 2011 | $828.00M | +231.2% | +$578.00M | ||
| 2010 | $250.00M | -47.7% | -$228.00M | ||
| 2009 | $478.00M | -72.5% | -$1.26B | ||
| 2008 | $1.74B | +232.7% | +$1.22B | ||
| 2007 | $523.00M | -45.9% | -$443.00M | ||
| 2006 | $966.00M | +1188.0% | +$891.00M | ||
| 2005 | $75.00M | — | +$75.00M | ||
| 2004 | $0 | -100.0% | -$6.00M | ||
| 2003 | $6.00M | -93.8% | -$91.00M | ||
| 2002 | $97.00M | — | +$97.00M | ||
| 2001 | $0 | -100.0% | -$59.00M | ||
| 2000 | $59.00M | -10.6% | -$7.00M | ||
| 1999 | $66.00M | +266.7% | +$48.00M | ||
| 1998 | $18.00M | -86.8% | -$118.00M | ||
| 1997 | $136.00M | +655.6% | +$118.00M | ||
| 1996 | $18.00M | -85.2% | -$103.80M | ||
| 1995 | $121.80M | -7.7% | -$10.20M | ||
| 1994 | $132.00M | +1057.9% | +$120.60M | ||
| 1993 | $11.40M | +65.2% | +$4.50M | ||
| 1992 | $6.90M | -79.2% | -$26.30M | ||
| 1991 | $33.20M | +74.7% | +$14.20M | ||
| 1990 | $19.00M | — | — |
Aon (AON) most recent annual buyback spend stands at $1.00B (2025) – edged up 0.0% year-over-year.
Through 2020–2025 (5 years), Aon buyback spend delivered a -10.7% annualised rate; with a net decline across the window.
Between 2021 and 2025, Aon buyback spend plunged 71.8%, falling from $3.54B to $1.00B.
$3.54B stands as the all-time-high annual buyback spend, posted in 2021, against a low of $0 during 2001.
Within Financial Services, Aon (AON) ranks 8th among 8 peers we track. The peer median for buyback spend is $12.87B.
Aon Buyback Spend 2025: $1.00B
Aon buyback spend in 2025 was $1.00B, edged up 0.0% from 2024.
Aon Buyback Spend 2024: $1.00B
Aon buyback spend in 2024 was $1.00B, plunged 63.0% below 2023.
Aon Buyback Spend 2023: $2.70B
Aon buyback spend in 2023 was $2.70B, declined 15.7% below 2022.
Aon Buyback Spend 2022: $3.20B
Aon buyback spend in 2022 was $3.20B, declined 9.6% below 2021.
Aon Buyback Spend 2021: $3.54B
Aon buyback spend in 2021 was $3.54B.
See more financial history for Aon (AON).
Sector peers by buyback spend
Companies in the same sector as Aon, ranked by their latest buyback spend.
| Company | Buyback Spend | Sector |
|---|---|---|
| JPMorgan Chase (JPM) | $34.59B | Financial Services |
| Bank of America (BAC) | $21.43B | Financial Services |
| Wells Fargo (WFC) | $19.52B | Financial Services |
| Visa (V) | $13.39B | Financial Services |
| Goldman Sachs (GS) | $12.36B | Financial Services |
| Mastercard (MA) | $11.73B | Financial Services |
| Morgan Stanley (MS) | $5.83B | Financial Services |
| Berkshire Hathaway (BRK-B) | $0 | Financial Services |
Share count history
Diluted weighted-average shares drive the EPS denominator and per-share capital-return maths. A falling diluted share count means buybacks are outpacing dilution from stock-based compensation and option exercises.
Diluted vs basic shares (annual)
Year-over-year change in diluted shares
Green is fewer shares vs the prior fiscal year (net repurchase); red is growth (dilution). The earliest year shown has no prior year to compare.
Dividend & buyback yield over time
Stacked annual yields — buyback yield (TTM cash repurchases ÷ market cap) plus dividend yield from the same fiscal-year-end key-metrics period — show how total cash return per dollar of equity has evolved.
Buybacks vs stock-based compensation
Annual cash repurchases set against stock-based compensation. Coverage above 1× means buybacks fully offset the equity dilution from SBC. TTM coverage: 4.07×.
Capital allocation mix
How Aon splits cash returned to shareholders between dividends and buybacks, plus the headroom on free cash flow that's still available for additional repurchases.
Buybacks vs dividends (share of cash returned)
Buyback capacity (TTM)
Free cash flow minus dividends paid versus actual TTM repurchases — the headroom bar shows how much of post-dividend FCF is still being deployed elsewhere.
Headroom $3.02B (TTM FCF − TTM dividends, clamped at zero).
Data & methodology
Where do buyback, dividend and compensation figures come from?
Cash buyback spend (common stock repurchased), dividends paid and stock-based compensation come from Aon's consolidated cash flow statements — quarterly 10-Q and annual 10-K SEC filings, in USD as reported.
How are diluted shares and yields calculated?
Diluted weighted-average share counts come from the income statement (EPS denominator). Trailing twelve-month (TTM) aggregates sum the four most recent reported quarters. Buyback and dividend yields divide TTM cash flows by market capitalisation at the latest quarter-end.
How is buyback capacity defined?
Capacity compares TTM repurchases to free cash flow after dividends: operating cash flow minus capital expenditure, minus dividends paid, versus actual buybacks over the same trailing window.
Is this investment advice?
No. Figures are for informational and educational use only. Past buybacks and dividends do not predict future returns.
Frequently asked questions
Does Aon buy back its own stock?
Yes, Aon (AON) has repurchased shares in recent periods. See the history table and charts on this page for amounts and trends.
How much does Aon spend on share buybacks?
Trailing twelve months (TTM) buyback spend is about $1.25B (sum of the last four quarterly cash-flow periods in our data). Figures are illustrative; verify in filings.
What is Aon's buyback yield?
TTM buyback yield is about 1.81% (TTM buyback spend divided by market cap at the latest quarter-end in our data).
What is Aon's shareholder yield?
Shareholder yield combines dividend yield and buyback yield. For the latest period we show approximately 1.81% combined (TTM-based where available).
Is Aon diluting shareholders?
Compare stock-based compensation (SBC) to buybacks in the chart above. Net effect varies by year; see annual buyback vs SBC bars and the history table.
How has Aon's share count changed?
Diluted weighted average shares changed by about -7.1% over roughly five fiscal years (annual income statement data).
What is Aon's buyback spend?
Latest reported buyback spend for Aon (AON) is $1.25B (period ending March 31, 2026).
How has Aon buyback spend changed year-over-year?
Aon (AON) buyback spend changed 0.0% year-over-year on the latest annual filing.
What is the long-term growth rate of Aon buyback spend?
Aon (AON) buyback spend compound annual growth rate is -10.7% over the most recent 5 years available.
When did Aon buyback spend hit its highest annual value?
Aon buyback spend reached its highest annual value of $3.54B in 2021.
What was Aon buyback spend in 2024?
Aon (AON) buyback spend in 2024 was $1.00B.
What was Aon buyback spend in 2025?
Aon (AON) buyback spend in 2025 was $1.00B.
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