Arthur J. Gallagher & Co. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2017-01-10 | 52.430 | 52.750 | 52.270 | 52.420 | 45.186 | 616,300 |
| 2017-01-09 | 52.990 | 53.140 | 52.370 | 52.400 | 45.169 | 922,100 |
| 2017-01-06 | 53.220 | 53.360 | 53.090 | 53.140 | 45.807 | 871,900 |
| 2017-01-05 | 52.760 | 53.090 | 52.580 | 53.020 | 45.704 | 1,309,500 |
| 2017-01-04 | 52.420 | 53.230 | 52.240 | 52.900 | 45.600 | 1,382,800 |
| 2017-01-03 | 52.000 | 52.330 | 51.800 | 52.240 | 45.031 | 1,058,600 |
| 2016-12-30 | 51.960 | 52.160 | 51.630 | 51.960 | 44.790 | 1,221,400 |
| 2016-12-29 | 51.670 | 51.910 | 51.650 | 51.840 | 44.686 | 912,300 |
| 2016-12-28 | 52.020 | 52.050 | 51.600 | 51.620 | 44.497 | 688,900 |
| 2016-12-27 | 52.030 | 52.100 | 51.860 | 51.950 | 44.781 | 523,600 |
| 2016-12-23 | 52.000 | 52.120 | 51.830 | 52.010 | 44.833 | 556,400 |
| 2016-12-22 | 51.740 | 52.010 | 51.580 | 51.980 | 44.807 | 517,000 |
| 2016-12-21 | 51.900 | 52.090 | 51.620 | 51.730 | 44.592 | 525,600 |
| 2016-12-20 | 51.970 | 51.980 | 51.650 | 51.870 | 44.712 | 945,600 |
| 2016-12-19 | 51.530 | 51.860 | 51.210 | 51.670 | 44.540 | 1,002,200 |
| 2016-12-16 | 50.950 | 51.740 | 50.870 | 51.550 | 44.436 | 8,576,100 |
| 2016-12-15 | 50.250 | 51.040 | 50.230 | 50.820 | 43.807 | 1,143,400 |
| 2016-12-14 | 50.940 | 51.160 | 50.110 | 50.230 | 43.299 | 1,558,800 |
| 2016-12-13 | 50.990 | 51.150 | 50.850 | 51.050 | 44.005 | 1,266,900 |
| 2016-12-12 | 50.700 | 51.000 | 50.600 | 50.690 | 43.695 | 1,779,600 |
| 2016-12-09 | 50.120 | 50.760 | 49.930 | 50.760 | 43.755 | 1,159,300 |
| 2016-12-08 | 50.570 | 50.630 | 50.050 | 50.150 | 43.230 | 878,400 |
| 2016-12-07 | 49.820 | 50.460 | 49.660 | 50.440 | 43.480 | 2,142,100 |
| 2016-12-06 | 49.540 | 49.940 | 49.310 | 49.820 | 42.945 | 2,222,500 |
| 2016-12-05 | 49.540 | 49.750 | 49.210 | 49.320 | 42.514 | 1,377,100 |
| 2016-12-02 | 49.670 | 49.970 | 48.970 | 49.160 | 42.376 | 1,158,400 |
| 2016-12-01 | 50.350 | 50.410 | 49.570 | 49.730 | 42.868 | 1,388,600 |
| 2016-11-30 | 51.170 | 51.230 | 50.310 | 50.350 | 43.402 | 1,989,200 |
| 2016-11-29 | 51.220 | 51.480 | 51.190 | 51.250 | 43.850 | 972,500 |
| 2016-11-28 | 51.640 | 51.840 | 51.150 | 51.220 | 43.825 | 702,000 |
| 2016-11-25 | 51.670 | 51.860 | 51.510 | 51.860 | 44.372 | 321,900 |
| 2016-11-23 | 51.320 | 51.950 | 51.290 | 51.660 | 44.201 | 943,400 |
| 2016-11-22 | 51.520 | 51.780 | 51.130 | 51.190 | 43.799 | 1,004,900 |
| 2016-11-21 | 51.610 | 51.920 | 51.320 | 51.400 | 43.979 | 490,700 |
| 2016-11-18 | 51.520 | 51.630 | 51.340 | 51.520 | 44.081 | 880,000 |
| 2016-11-17 | 50.900 | 51.900 | 50.860 | 51.630 | 44.175 | 603,800 |
| 2016-11-16 | 50.870 | 50.950 | 50.570 | 50.860 | 43.517 | 905,700 |
| 2016-11-15 | 51.530 | 51.890 | 50.930 | 51.070 | 43.696 | 1,269,700 |
| 2016-11-14 | 51.780 | 52.340 | 51.500 | 52.120 | 44.595 | 1,463,200 |
| 2016-11-11 | 51.140 | 51.620 | 51.100 | 51.540 | 44.098 | 1,072,500 |
| 2016-11-10 | 50.330 | 51.320 | 50.200 | 51.200 | 43.807 | 872,000 |
| 2016-11-09 | 48.810 | 50.150 | 48.260 | 49.900 | 42.695 | 1,232,400 |
| 2016-11-08 | 48.550 | 49.020 | 48.410 | 48.930 | 41.865 | 1,039,200 |
| 2016-11-07 | 48.220 | 48.580 | 48.070 | 48.570 | 41.557 | 795,100 |
| 2016-11-04 | 47.640 | 47.870 | 47.160 | 47.480 | 40.625 | 938,700 |
| 2016-11-03 | 47.490 | 48.160 | 47.490 | 47.670 | 40.787 | 620,500 |
| 2016-11-02 | 47.600 | 47.840 | 47.320 | 47.350 | 40.513 | 967,600 |
| 2016-11-01 | 48.390 | 48.420 | 47.530 | 47.650 | 40.770 | 793,100 |
| 2016-10-31 | 48.510 | 48.550 | 48.120 | 48.230 | 41.266 | 920,200 |
| 2016-10-28 | 48.980 | 49.700 | 47.760 | 48.330 | 41.352 | 875,900 |
| 2016-10-27 | 48.680 | 48.780 | 48.060 | 48.100 | 41.155 | 911,200 |
| 2016-10-26 | 48.200 | 48.720 | 48.200 | 48.510 | 41.506 | 622,700 |
| 2016-10-25 | 48.450 | 48.570 | 48.290 | 48.370 | 41.386 | 868,800 |
| 2016-10-24 | 49.310 | 49.470 | 48.540 | 48.550 | 41.540 | 1,096,400 |
| 2016-10-21 | 48.870 | 49.200 | 48.630 | 48.970 | 41.899 | 780,000 |
| 2016-10-20 | 49.850 | 49.850 | 49.100 | 49.180 | 42.079 | 763,300 |
| 2016-10-19 | 50.180 | 50.260 | 49.850 | 50.020 | 42.798 | 820,300 |
| 2016-10-18 | 50.420 | 50.420 | 49.940 | 50.020 | 42.798 | 448,000 |
| 2016-10-17 | 50.330 | 50.360 | 49.870 | 49.910 | 42.704 | 562,100 |
| 2016-10-14 | 50.470 | 50.710 | 50.220 | 50.240 | 42.986 | 493,000 |
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.