Arthur J. Gallagher & Co. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2020-02-18 | 109.12 | 109.46 | 108.13 | 108.51 | 100.24 | 612,400 |
| 2020-02-14 | 108.21 | 109.19 | 108.05 | 109.16 | 100.84 | 606,400 |
| 2020-02-13 | 106.60 | 108.25 | 106.44 | 108.20 | 99.956 | 424,500 |
| 2020-02-12 | 107.16 | 107.75 | 106.55 | 106.65 | 98.524 | 640,700 |
| 2020-02-11 | 107.20 | 107.94 | 107.00 | 107.40 | 99.217 | 680,400 |
| 2020-02-10 | 104.73 | 106.79 | 104.65 | 106.78 | 98.644 | 591,500 |
| 2020-02-07 | 105.12 | 105.77 | 104.80 | 104.93 | 96.935 | 578,100 |
| 2020-02-06 | 105.23 | 105.61 | 104.97 | 105.12 | 97.111 | 773,800 |
| 2020-02-05 | 105.36 | 105.49 | 104.51 | 105.08 | 97.074 | 696,200 |
| 2020-02-04 | 104.80 | 105.40 | 104.01 | 104.70 | 96.723 | 915,100 |
| 2020-02-03 | 103.24 | 104.66 | 103.13 | 104.26 | 96.316 | 1,035,700 |
| 2020-01-31 | 103.00 | 105.67 | 102.27 | 102.57 | 94.755 | 1,874,400 |
| 2020-01-30 | 98.320 | 100.36 | 97.480 | 100.20 | 92.565 | 942,300 |
| 2020-01-29 | 98.760 | 99.450 | 98.430 | 98.820 | 91.291 | 506,400 |
| 2020-01-28 | 96.580 | 98.930 | 96.250 | 98.370 | 90.875 | 822,100 |
| 2020-01-27 | 95.800 | 96.990 | 95.780 | 96.190 | 88.861 | 700,400 |
| 2020-01-24 | 97.230 | 97.300 | 96.230 | 96.860 | 89.480 | 479,500 |
| 2020-01-23 | 95.840 | 97.170 | 95.260 | 96.990 | 89.600 | 782,800 |
| 2020-01-22 | 96.300 | 96.690 | 96.060 | 96.270 | 88.935 | 568,300 |
| 2020-01-21 | 96.170 | 96.500 | 96.070 | 96.190 | 88.861 | 495,700 |
| 2020-01-17 | 96.330 | 96.700 | 96.120 | 96.450 | 89.101 | 629,100 |
| 2020-01-16 | 96.190 | 96.430 | 95.760 | 96.050 | 88.732 | 633,300 |
| 2020-01-15 | 94.970 | 95.990 | 94.770 | 95.810 | 88.510 | 618,400 |
| 2020-01-14 | 95.160 | 95.510 | 94.830 | 95.090 | 87.845 | 673,800 |
| 2020-01-13 | 95.470 | 95.750 | 95.030 | 95.370 | 88.103 | 556,900 |
| 2020-01-10 | 95.830 | 96.180 | 95.330 | 95.440 | 88.168 | 675,200 |
| 2020-01-09 | 95.300 | 95.950 | 95.150 | 95.780 | 88.482 | 635,500 |
| 2020-01-08 | 94.750 | 95.780 | 94.700 | 94.850 | 87.623 | 795,700 |
| 2020-01-07 | 95.560 | 95.750 | 94.660 | 94.720 | 87.503 | 627,500 |
| 2020-01-06 | 95.050 | 95.750 | 94.530 | 95.750 | 88.455 | 1,024,700 |
| 2020-01-03 | 94.500 | 95.520 | 94.290 | 95.310 | 88.048 | 678,200 |
| 2020-01-02 | 95.610 | 95.860 | 94.620 | 95.510 | 88.233 | 724,500 |
| 2019-12-31 | 94.910 | 95.310 | 94.810 | 95.230 | 87.974 | 638,100 |
| 2019-12-30 | 94.930 | 94.930 | 94.350 | 94.900 | 87.669 | 409,500 |
| 2019-12-27 | 94.680 | 94.930 | 94.360 | 94.750 | 87.531 | 559,100 |
| 2019-12-26 | 94.620 | 94.980 | 94.200 | 94.550 | 87.346 | 305,000 |
| 2019-12-24 | 94.360 | 94.640 | 94.190 | 94.560 | 87.355 | 299,000 |
| 2019-12-23 | 95.770 | 95.870 | 94.090 | 94.260 | 87.078 | 660,500 |
| 2019-12-20 | 95.820 | 96.200 | 95.380 | 95.420 | 88.150 | 1,685,600 |
| 2019-12-19 | 94.810 | 95.340 | 94.090 | 95.310 | 88.048 | 758,900 |
| 2019-12-18 | 95.670 | 95.670 | 94.170 | 94.430 | 87.235 | 743,800 |
| 2019-12-17 | 95.060 | 95.760 | 93.910 | 95.670 | 88.381 | 937,800 |
| 2019-12-16 | 94.880 | 95.470 | 94.200 | 95.020 | 87.780 | 919,900 |
| 2019-12-13 | 94.020 | 94.760 | 93.630 | 94.450 | 87.254 | 605,300 |
| 2019-12-12 | 94.660 | 95.240 | 94.280 | 94.620 | 87.411 | 670,000 |
| 2019-12-11 | 93.950 | 94.470 | 93.760 | 94.440 | 87.244 | 514,300 |
| 2019-12-10 | 94.040 | 94.520 | 93.770 | 93.880 | 86.727 | 655,500 |
| 2019-12-09 | 93.740 | 94.310 | 93.200 | 94.150 | 86.976 | 898,500 |
| 2019-12-06 | 93.560 | 94.230 | 93.050 | 93.750 | 86.607 | 655,700 |
| 2019-12-05 | 92.470 | 93.030 | 91.930 | 92.900 | 85.822 | 576,900 |
| 2019-12-04 | 91.230 | 92.720 | 91.060 | 92.580 | 85.129 | 1,036,600 |
| 2019-12-03 | 91.650 | 91.730 | 90.830 | 91.350 | 83.998 | 676,600 |
| 2019-12-02 | 93.560 | 93.560 | 92.230 | 92.230 | 84.807 | 734,100 |
| 2019-11-29 | 93.290 | 93.590 | 93.020 | 93.270 | 85.763 | 392,500 |
| 2019-11-27 | 92.950 | 93.410 | 92.340 | 93.300 | 85.791 | 707,700 |
| 2019-11-26 | 91.860 | 92.620 | 91.630 | 92.530 | 85.083 | 1,125,900 |
| 2019-11-25 | 91.440 | 92.360 | 91.440 | 91.870 | 84.476 | 804,300 |
| 2019-11-22 | 92.010 | 92.300 | 91.380 | 91.740 | 84.356 | 715,900 |
| 2019-11-21 | 93.030 | 93.030 | 91.780 | 92.100 | 84.687 | 617,000 |
| 2019-11-20 | 92.160 | 93.140 | 92.160 | 93.100 | 85.607 | 693,000 |
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.