Aon plc historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2026-07-23 | 352.59 | 355.79 | 350.83 | 355.78 | 354.97 | 1,178,100 |
| 2026-07-22 | 359.65 | 359.97 | 350.96 | 352.33 | 351.53 | 1,813,200 |
| 2026-07-21 | 359.08 | 363.00 | 354.80 | 359.40 | 358.58 | 1,371,200 |
| 2026-07-20 | 364.87 | 366.00 | 361.11 | 362.78 | 361.95 | 1,074,100 |
| 2026-07-17 | 370.00 | 375.92 | 365.63 | 367.21 | 366.37 | 1,445,600 |
| 2026-07-16 | 358.23 | 368.64 | 356.56 | 368.63 | 367.79 | 1,017,900 |
| 2026-07-15 | 357.52 | 360.29 | 350.46 | 355.15 | 354.34 | 1,193,600 |
| 2026-07-14 | 364.29 | 365.78 | 358.40 | 358.89 | 358.07 | 1,168,300 |
| 2026-07-13 | 360.12 | 367.58 | 360.12 | 367.35 | 366.51 | 1,511,700 |
| 2026-07-10 | 357.55 | 360.00 | 353.79 | 356.94 | 356.13 | 998,600 |
| 2026-07-09 | 354.98 | 357.50 | 353.10 | 355.56 | 354.75 | 602,000 |
| 2026-07-08 | 360.00 | 361.13 | 357.00 | 357.51 | 356.70 | 641,700 |
| 2026-07-07 | 360.00 | 366.45 | 357.07 | 359.82 | 359.00 | 830,200 |
| 2026-07-06 | 356.71 | 357.18 | 351.38 | 356.91 | 356.10 | 1,218,000 |
| 2026-07-02 | 346.41 | 357.54 | 344.20 | 357.46 | 356.65 | 1,183,000 |
| 2026-07-01 | 327.83 | 347.27 | 327.83 | 343.56 | 342.78 | 1,913,700 |
| 2026-06-30 | 327.07 | 333.76 | 322.26 | 331.69 | 330.94 | 1,588,800 |
| 2026-06-29 | 324.97 | 330.43 | 323.41 | 327.57 | 326.83 | 1,387,400 |
| 2026-06-26 | 319.72 | 330.36 | 316.82 | 328.69 | 327.94 | 5,288,300 |
| 2026-06-25 | 324.49 | 328.46 | 315.78 | 315.95 | 315.23 | 1,744,200 |
| 2026-06-24 | 322.59 | 328.24 | 319.22 | 325.48 | 324.74 | 2,362,200 |
| 2026-06-23 | 318.29 | 323.57 | 316.69 | 320.74 | 320.01 | 2,626,900 |
| 2026-06-22 | 316.51 | 319.75 | 313.62 | 313.63 | 312.92 | 2,131,300 |
| 2026-06-18 | 327.86 | 328.00 | 317.48 | 317.74 | 317.02 | 2,382,900 |
| 2026-06-17 | 327.02 | 334.79 | 325.00 | 326.69 | 325.95 | 1,751,100 |
| 2026-06-16 | 330.80 | 333.15 | 329.13 | 331.45 | 330.70 | 1,751,400 |
| 2026-06-15 | 336.71 | 338.21 | 327.98 | 329.51 | 328.76 | 1,405,800 |
| 2026-06-12 | 335.00 | 338.20 | 330.81 | 335.31 | 334.55 | 1,377,900 |
| 2026-06-11 | 334.39 | 340.10 | 334.39 | 335.17 | 334.41 | 1,431,100 |
| 2026-06-10 | 334.48 | 340.76 | 331.00 | 336.33 | 335.57 | 1,749,500 |
| 2026-06-09 | 324.87 | 333.07 | 321.55 | 331.59 | 330.84 | 1,956,200 |
| 2026-06-08 | 325.49 | 328.83 | 323.78 | 325.85 | 325.11 | 1,470,300 |
| 2026-06-05 | 325.00 | 331.13 | 324.12 | 328.53 | 327.78 | 1,341,000 |
| 2026-06-04 | 321.17 | 327.90 | 318.81 | 322.24 | 321.51 | 1,579,700 |
| 2026-06-03 | 316.16 | 317.04 | 311.07 | 315.60 | 314.88 | 1,617,800 |
| 2026-06-02 | 317.58 | 319.35 | 312.34 | 317.86 | 317.14 | 1,051,200 |
| 2026-06-01 | 313.78 | 321.42 | 313.23 | 320.41 | 319.68 | 1,431,600 |
| 2026-05-29 | 317.77 | 317.83 | 314.54 | 316.06 | 315.34 | 2,856,900 |
| 2026-05-28 | 320.03 | 322.09 | 316.03 | 318.30 | 317.58 | 1,350,700 |
| 2026-05-27 | 321.09 | 325.60 | 317.49 | 318.54 | 317.82 | 1,073,700 |
| 2026-05-26 | 326.27 | 326.38 | 318.48 | 319.29 | 318.56 | 1,411,400 |
| 2026-05-22 | 323.28 | 325.40 | 320.65 | 324.78 | 324.04 | 929,000 |
| 2026-05-21 | 318.71 | 325.27 | 315.00 | 324.22 | 323.48 | 946,500 |
| 2026-05-20 | 323.60 | 323.60 | 316.90 | 321.15 | 320.42 | 1,479,300 |
| 2026-05-19 | 328.16 | 330.22 | 322.26 | 323.66 | 322.92 | 2,140,600 |
| 2026-05-18 | 317.51 | 328.48 | 317.51 | 326.57 | 325.83 | 1,455,600 |
| 2026-05-15 | 316.24 | 321.69 | 316.24 | 317.22 | 316.50 | 1,955,300 |
| 2026-05-14 | 311.61 | 317.26 | 311.61 | 315.41 | 314.69 | 1,844,800 |
| 2026-05-13 | 313.62 | 315.49 | 308.51 | 310.90 | 310.19 | 1,672,400 |
| 2026-05-12 | 313.89 | 317.59 | 310.63 | 316.35 | 315.63 | 1,622,700 |
| 2026-05-11 | 312.42 | 314.85 | 309.87 | 312.07 | 311.36 | 1,166,100 |
| 2026-05-08 | 313.00 | 314.06 | 309.22 | 312.79 | 312.08 | 1,179,200 |
| 2026-05-07 | 307.19 | 315.90 | 306.52 | 313.59 | 312.88 | 1,858,900 |
| 2026-05-06 | 316.41 | 317.49 | 306.87 | 308.27 | 307.57 | 1,476,900 |
| 2026-05-05 | 313.67 | 315.41 | 308.99 | 314.55 | 313.83 | 1,177,100 |
| 2026-05-04 | 309.93 | 316.56 | 308.57 | 314.92 | 314.20 | 1,382,000 |
| 2026-05-01 | 326.52 | 326.52 | 310.73 | 311.51 | 310.80 | 1,822,700 |
| 2026-04-30 | 312.43 | 314.02 | 307.02 | 311.65 | 310.12 | 2,614,600 |
| 2026-04-29 | 319.89 | 323.12 | 319.11 | 322.49 | 320.91 | 1,156,800 |
| 2026-04-28 | 326.73 | 328.95 | 320.52 | 321.68 | 320.10 | 1,312,200 |
Stock splits
| Date | Split (new : old) |
|---|---|
| 1999-05-18 | 3:2 |
| 1997-05-15 | 3:2 |
| 1994-05-17 | 3:2 |
Dividends
| Ex-date | Amount |
|---|---|
| 2026-08-03 | 0.8200 USD |
| 2026-05-01 | 0.8200 USD |
| 2026-02-02 | 0.7450 USD |
| 2025-11-03 | 0.7450 USD |
| 2025-08-01 | 0.7450 USD |
| 2025-05-01 | 0.7450 USD |
| 2025-02-03 | 0.6750 USD |
| 2024-11-01 | 0.6750 USD |
| 2024-08-01 | 0.6750 USD |
| 2024-04-30 | 0.6750 USD |
| 2024-01-31 | 0.6150 USD |
| 2023-10-31 | 0.6150 USD |
| 2023-07-31 | 0.6150 USD |
| 2023-04-28 | 0.6150 USD |
| 2023-01-31 | 0.5600 USD |
| 2022-10-31 | 0.5600 USD |
| 2022-07-29 | 0.5600 USD |
| 2022-04-29 | 0.5600 USD |
| 2022-01-31 | 0.5100 USD |
| 2021-10-29 | 0.5100 USD |
| 2021-07-30 | 0.5100 USD |
| 2021-04-30 | 0.5100 USD |
| 2021-01-29 | 0.4600 USD |
| 2020-10-30 | 0.4600 USD |
| 2020-07-31 | 0.4400 USD |
| 2020-04-30 | 0.4400 USD |
| 2020-01-31 | 0.4400 USD |
| 2019-10-31 | 0.4400 USD |
| 2019-07-31 | 0.4400 USD |
| 2019-04-30 | 0.4400 USD |
| 2019-01-31 | 0.4000 USD |
Open, high, low and close are as traded (USD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.