Arthur J. Gallagher & Co. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2020-10-30 | 102.44 | 105.37 | 102.03 | 103.71 | 97.067 | 1,528,000 |
| 2020-10-29 | 103.66 | 104.54 | 101.95 | 103.00 | 96.402 | 1,484,900 |
| 2020-10-28 | 104.21 | 105.29 | 103.54 | 104.31 | 97.628 | 1,996,300 |
| 2020-10-27 | 106.58 | 107.37 | 105.49 | 105.57 | 98.808 | 959,400 |
| 2020-10-26 | 106.90 | 107.03 | 104.82 | 106.16 | 99.360 | 670,900 |
| 2020-10-23 | 107.95 | 108.32 | 107.39 | 107.92 | 101.01 | 561,500 |
| 2020-10-22 | 107.38 | 108.61 | 106.79 | 107.76 | 100.86 | 418,800 |
| 2020-10-21 | 107.67 | 108.87 | 107.47 | 107.62 | 100.73 | 518,400 |
| 2020-10-20 | 108.04 | 109.00 | 107.29 | 107.52 | 100.63 | 576,700 |
| 2020-10-19 | 109.05 | 109.54 | 106.86 | 107.06 | 100.20 | 769,300 |
| 2020-10-16 | 108.45 | 109.71 | 108.30 | 108.77 | 101.80 | 575,100 |
| 2020-10-15 | 107.07 | 108.52 | 106.66 | 108.16 | 101.23 | 687,100 |
| 2020-10-14 | 108.98 | 109.94 | 107.81 | 107.83 | 100.92 | 894,500 |
| 2020-10-13 | 109.68 | 110.56 | 107.92 | 108.67 | 101.71 | 1,033,600 |
| 2020-10-12 | 108.55 | 109.94 | 108.40 | 109.51 | 102.50 | 628,000 |
| 2020-10-09 | 107.52 | 108.84 | 107.47 | 108.55 | 101.60 | 448,100 |
| 2020-10-08 | 106.66 | 107.79 | 106.37 | 107.11 | 100.25 | 463,100 |
| 2020-10-07 | 106.54 | 107.22 | 105.67 | 106.42 | 99.603 | 531,600 |
| 2020-10-06 | 107.73 | 108.06 | 105.39 | 105.76 | 98.985 | 591,300 |
| 2020-10-05 | 106.72 | 107.65 | 106.40 | 107.06 | 100.20 | 558,000 |
| 2020-10-02 | 104.53 | 106.94 | 103.95 | 106.21 | 99.407 | 535,600 |
| 2020-10-01 | 105.83 | 106.46 | 104.55 | 105.61 | 98.845 | 745,000 |
| 2020-09-30 | 105.26 | 106.46 | 104.55 | 105.58 | 98.817 | 1,197,900 |
| 2020-09-29 | 104.68 | 105.44 | 104.35 | 104.77 | 98.059 | 504,300 |
| 2020-09-28 | 103.96 | 105.42 | 103.26 | 104.96 | 98.237 | 629,300 |
| 2020-09-25 | 102.08 | 103.18 | 101.36 | 102.97 | 96.374 | 623,500 |
| 2020-09-24 | 102.42 | 103.82 | 101.66 | 102.45 | 95.887 | 656,100 |
| 2020-09-23 | 104.10 | 105.13 | 101.97 | 102.36 | 95.803 | 1,709,400 |
| 2020-09-22 | 103.83 | 105.50 | 102.96 | 104.29 | 97.609 | 1,236,200 |
| 2020-09-21 | 102.46 | 104.14 | 102.16 | 104.11 | 97.441 | 1,537,700 |
| 2020-09-18 | 103.71 | 105.69 | 103.66 | 104.21 | 97.535 | 1,533,000 |
| 2020-09-17 | 102.48 | 104.03 | 102.00 | 103.71 | 97.067 | 1,177,100 |
| 2020-09-16 | 103.34 | 104.38 | 102.83 | 103.04 | 96.440 | 873,800 |
| 2020-09-15 | 102.69 | 103.85 | 102.61 | 102.98 | 96.383 | 658,300 |
| 2020-09-14 | 102.39 | 103.13 | 102.20 | 102.61 | 96.037 | 1,010,600 |
| 2020-09-11 | 102.45 | 102.77 | 101.22 | 101.79 | 95.270 | 548,300 |
| 2020-09-10 | 103.31 | 103.79 | 101.62 | 101.93 | 95.401 | 1,160,400 |
| 2020-09-09 | 101.77 | 104.32 | 101.77 | 103.23 | 96.617 | 657,200 |
| 2020-09-08 | 103.22 | 103.22 | 100.32 | 101.08 | 94.605 | 826,800 |
| 2020-09-04 | 105.51 | 105.88 | 102.47 | 103.68 | 97.039 | 731,500 |
| 2020-09-03 | 107.64 | 108.03 | 103.90 | 104.58 | 97.881 | 612,400 |
| 2020-09-02 | 105.69 | 107.76 | 105.35 | 107.35 | 100.05 | 806,900 |
| 2020-09-01 | 105.70 | 105.73 | 104.84 | 105.69 | 98.505 | 748,800 |
| 2020-08-31 | 104.96 | 105.83 | 104.40 | 105.30 | 98.142 | 1,150,300 |
| 2020-08-28 | 106.43 | 106.53 | 104.39 | 105.05 | 97.909 | 674,700 |
| 2020-08-27 | 104.90 | 106.26 | 104.68 | 106.00 | 98.794 | 698,900 |
| 2020-08-26 | 103.94 | 104.80 | 103.32 | 104.47 | 97.368 | 1,382,300 |
| 2020-08-25 | 104.72 | 105.56 | 103.89 | 104.27 | 97.182 | 910,300 |
| 2020-08-24 | 103.71 | 104.07 | 102.57 | 104.02 | 96.949 | 1,143,200 |
| 2020-08-21 | 103.17 | 104.47 | 102.73 | 103.47 | 96.436 | 1,267,500 |
| 2020-08-20 | 106.14 | 107.05 | 105.53 | 106.37 | 99.139 | 498,200 |
| 2020-08-19 | 108.00 | 108.22 | 106.44 | 106.62 | 99.372 | 554,700 |
| 2020-08-18 | 106.49 | 107.78 | 106.42 | 107.38 | 100.08 | 590,400 |
| 2020-08-17 | 106.63 | 107.80 | 106.23 | 106.65 | 99.400 | 909,400 |
| 2020-08-14 | 107.14 | 108.03 | 106.57 | 106.99 | 99.717 | 511,900 |
| 2020-08-13 | 106.54 | 107.51 | 106.36 | 107.19 | 99.903 | 470,500 |
| 2020-08-12 | 108.25 | 109.34 | 106.87 | 106.96 | 99.689 | 664,900 |
| 2020-08-11 | 108.02 | 108.67 | 107.19 | 107.37 | 100.07 | 740,800 |
| 2020-08-10 | 106.78 | 107.97 | 106.13 | 107.44 | 100.14 | 870,200 |
| 2020-08-07 | 105.26 | 106.91 | 105.22 | 106.81 | 99.549 | 654,500 |
Stock splits
| Date | Split (new : old) |
|---|
| 2001-01-19 | 2:1 |
| 2000-03-16 | 2:1 |
Dividends
| Ex-date | Amount |
|---|
| 2026-09-08 | 0.7000 USD |
| 2026-06-05 | 0.7000 USD |
| 2026-03-06 | 0.7000 USD |
| 2025-12-05 | 0.6500 USD |
| 2025-09-05 | 0.6500 USD |
| 2025-06-06 | 0.6500 USD |
| 2025-03-07 | 0.6500 USD |
| 2024-12-06 | 0.6000 USD |
| 2024-09-06 | 0.6000 USD |
| 2024-06-07 | 0.6000 USD |
| 2024-02-29 | 0.6000 USD |
| 2023-11-30 | 0.5500 USD |
| 2023-08-31 | 0.5500 USD |
| 2023-06-01 | 0.5500 USD |
| 2023-03-02 | 0.5500 USD |
| 2022-12-01 | 0.5100 USD |
| 2022-09-01 | 0.5100 USD |
| 2022-06-02 | 0.5100 USD |
| 2022-03-03 | 0.5100 USD |
| 2021-12-02 | 0.4800 USD |
| 2021-09-02 | 0.4800 USD |
| 2021-06-03 | 0.4800 USD |
| 2021-03-04 | 0.4800 USD |
| 2020-12-03 | 0.4500 USD |
| 2020-09-03 | 0.4500 USD |
| 2020-06-04 | 0.4500 USD |
| 2020-03-05 | 0.4500 USD |
| 2019-12-05 | 0.4300 USD |
| 2019-09-05 | 0.4300 USD |
| 2019-06-06 | 0.4300 USD |
| 2019-02-28 | 0.4300 USD |
Open, high, low and close are as traded (USD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.