Arthur J. Gallagher & Co. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2016-10-13 | 50.200 | 50.300 | 49.840 | 50.070 | 42.841 | 648,600 |
| 2016-10-12 | 49.840 | 50.660 | 49.840 | 50.470 | 43.183 | 449,900 |
| 2016-10-11 | 50.470 | 50.510 | 49.680 | 49.820 | 42.627 | 576,300 |
| 2016-10-10 | 50.930 | 51.080 | 50.520 | 50.530 | 43.234 | 460,600 |
| 2016-10-07 | 50.890 | 50.890 | 50.380 | 50.570 | 43.268 | 491,000 |
| 2016-10-06 | 50.420 | 50.790 | 50.120 | 50.760 | 43.431 | 662,900 |
| 2016-10-05 | 50.550 | 50.770 | 50.340 | 50.420 | 43.140 | 569,500 |
| 2016-10-04 | 50.480 | 50.600 | 49.830 | 50.280 | 43.020 | 946,200 |
| 2016-10-03 | 50.720 | 50.820 | 50.370 | 50.460 | 43.174 | 469,100 |
| 2016-09-30 | 50.730 | 51.090 | 50.720 | 50.870 | 43.525 | 1,289,100 |
| 2016-09-29 | 50.890 | 50.890 | 50.020 | 50.320 | 43.055 | 815,200 |
| 2016-09-28 | 50.820 | 51.010 | 50.500 | 50.970 | 43.611 | 578,000 |
| 2016-09-27 | 50.410 | 50.940 | 50.260 | 50.800 | 43.465 | 611,800 |
| 2016-09-26 | 50.320 | 50.540 | 49.600 | 50.420 | 43.140 | 896,200 |
| 2016-09-23 | 50.810 | 51.080 | 50.680 | 50.680 | 43.363 | 741,100 |
| 2016-09-22 | 51.000 | 51.240 | 50.880 | 51.100 | 43.722 | 685,400 |
| 2016-09-21 | 50.130 | 50.710 | 50.050 | 50.660 | 43.345 | 1,040,500 |
| 2016-09-20 | 50.240 | 50.470 | 50.000 | 50.080 | 42.849 | 700,900 |
| 2016-09-19 | 50.020 | 50.050 | 49.560 | 49.900 | 42.695 | 1,095,700 |
| 2016-09-16 | 49.600 | 50.140 | 49.400 | 49.650 | 42.481 | 1,758,800 |
| 2016-09-15 | 49.300 | 50.140 | 49.300 | 50.020 | 42.798 | 780,600 |
| 2016-09-14 | 49.650 | 49.820 | 49.260 | 49.420 | 42.284 | 1,061,200 |
| 2016-09-13 | 49.900 | 49.970 | 49.540 | 49.620 | 42.456 | 1,286,800 |
| 2016-09-12 | 49.000 | 50.260 | 48.940 | 50.190 | 42.943 | 1,423,200 |
| 2016-09-09 | 49.840 | 50.050 | 49.150 | 49.170 | 42.071 | 1,251,900 |
| 2016-09-08 | 50.400 | 50.490 | 50.180 | 50.290 | 43.029 | 657,500 |
| 2016-09-07 | 49.880 | 50.450 | 49.760 | 50.450 | 43.166 | 864,500 |
| 2016-09-06 | 49.950 | 50.050 | 49.590 | 50.050 | 42.824 | 955,400 |
| 2016-09-02 | 49.620 | 49.990 | 49.500 | 49.990 | 42.772 | 636,400 |
| 2016-09-01 | 49.440 | 49.540 | 49.060 | 49.420 | 42.284 | 583,600 |
| 2016-08-31 | 49.230 | 49.550 | 49.010 | 49.410 | 42.276 | 1,002,000 |
| 2016-08-30 | 49.700 | 49.940 | 49.280 | 49.540 | 42.062 | 711,400 |
| 2016-08-29 | 49.030 | 49.600 | 49.010 | 49.570 | 42.088 | 723,300 |
| 2016-08-26 | 49.000 | 49.350 | 48.750 | 49.020 | 41.621 | 1,076,100 |
| 2016-08-25 | 48.550 | 49.000 | 48.480 | 48.890 | 41.510 | 833,300 |
| 2016-08-24 | 48.380 | 48.620 | 48.260 | 48.610 | 41.272 | 1,659,900 |
| 2016-08-23 | 49.010 | 49.150 | 48.370 | 48.470 | 41.154 | 1,591,200 |
| 2016-08-22 | 48.540 | 48.910 | 48.370 | 48.800 | 41.434 | 859,600 |
| 2016-08-19 | 48.330 | 48.720 | 48.190 | 48.540 | 41.213 | 5,072,900 |
| 2016-08-18 | 48.660 | 48.730 | 48.400 | 48.520 | 41.196 | 1,480,200 |
| 2016-08-17 | 48.710 | 48.800 | 48.400 | 48.600 | 41.264 | 1,379,700 |
| 2016-08-16 | 49.150 | 49.460 | 48.760 | 48.770 | 41.408 | 2,022,000 |
| 2016-08-15 | 49.430 | 49.720 | 49.290 | 49.300 | 41.858 | 1,042,400 |
| 2016-08-12 | 49.600 | 49.850 | 49.340 | 49.380 | 41.926 | 841,900 |
| 2016-08-11 | 49.750 | 49.970 | 49.670 | 49.750 | 42.240 | 663,400 |
| 2016-08-10 | 49.640 | 49.790 | 49.560 | 49.730 | 42.223 | 598,900 |
| 2016-08-09 | 49.350 | 49.750 | 49.350 | 49.580 | 42.096 | 726,500 |
| 2016-08-08 | 49.310 | 49.670 | 49.210 | 49.410 | 41.952 | 774,800 |
| 2016-08-05 | 49.200 | 49.470 | 49.160 | 49.300 | 41.858 | 832,900 |
| 2016-08-04 | 48.850 | 49.300 | 48.810 | 48.900 | 41.519 | 1,056,700 |
| 2016-08-03 | 48.870 | 49.210 | 48.850 | 49.000 | 41.604 | 1,122,000 |
| 2016-08-02 | 49.430 | 49.650 | 48.810 | 48.980 | 41.587 | 1,250,200 |
| 2016-08-01 | 49.190 | 49.580 | 49.000 | 49.550 | 42.071 | 1,133,700 |
| 2016-07-29 | 49.050 | 49.260 | 48.140 | 49.190 | 41.765 | 1,929,000 |
| 2016-07-28 | 49.360 | 49.530 | 49.130 | 49.410 | 41.952 | 1,286,100 |
| 2016-07-27 | 49.440 | 49.770 | 49.320 | 49.500 | 42.028 | 949,300 |
| 2016-07-26 | 49.510 | 49.700 | 49.210 | 49.460 | 41.994 | 966,500 |
| 2016-07-25 | 49.060 | 49.530 | 49.020 | 49.520 | 42.045 | 1,199,100 |
| 2016-07-22 | 48.640 | 49.210 | 48.640 | 49.160 | 41.739 | 595,700 |
| 2016-07-21 | 48.700 | 48.900 | 48.530 | 48.630 | 41.289 | 717,200 |
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.