Arthur J. Gallagher & Co. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2017-07-03 | 57.600 | 58.010 | 57.530 | 57.530 | 50.277 | 449,100 |
| 2017-06-30 | 57.350 | 57.450 | 56.980 | 57.250 | 50.033 | 813,100 |
| 2017-06-29 | 57.710 | 57.750 | 56.610 | 57.020 | 49.832 | 860,900 |
| 2017-06-28 | 56.830 | 57.510 | 56.640 | 57.390 | 50.155 | 917,900 |
| 2017-06-27 | 56.880 | 56.990 | 56.430 | 56.510 | 49.386 | 1,184,400 |
| 2017-06-26 | 56.950 | 57.170 | 56.710 | 56.860 | 49.692 | 1,143,200 |
| 2017-06-23 | 57.180 | 57.340 | 56.700 | 56.710 | 49.561 | 1,197,700 |
| 2017-06-22 | 57.670 | 57.860 | 57.100 | 57.100 | 49.902 | 688,900 |
| 2017-06-21 | 58.870 | 58.970 | 57.830 | 57.900 | 50.601 | 753,800 |
| 2017-06-20 | 58.920 | 59.090 | 58.660 | 58.660 | 51.265 | 576,100 |
| 2017-06-19 | 58.990 | 59.110 | 58.740 | 59.010 | 51.571 | 738,800 |
| 2017-06-16 | 58.770 | 59.030 | 58.560 | 58.970 | 51.536 | 1,256,100 |
| 2017-06-15 | 57.760 | 58.840 | 57.740 | 58.810 | 51.396 | 1,583,900 |
| 2017-06-14 | 58.010 | 58.190 | 57.650 | 57.970 | 50.662 | 1,354,600 |
| 2017-06-13 | 58.190 | 58.560 | 58.080 | 58.130 | 50.802 | 859,100 |
| 2017-06-12 | 57.870 | 58.060 | 57.730 | 58.050 | 50.732 | 919,500 |
| 2017-06-09 | 57.500 | 57.950 | 57.230 | 57.880 | 50.583 | 703,000 |
| 2017-06-08 | 56.930 | 57.440 | 56.870 | 57.390 | 50.155 | 785,600 |
| 2017-06-07 | 56.490 | 57.140 | 56.230 | 56.930 | 49.753 | 1,002,200 |
| 2017-06-06 | 56.700 | 56.700 | 56.190 | 56.250 | 49.159 | 589,900 |
| 2017-06-05 | 57.240 | 57.490 | 56.880 | 56.910 | 49.736 | 791,300 |
| 2017-06-02 | 57.330 | 57.550 | 57.060 | 57.350 | 50.120 | 533,600 |
| 2017-06-01 | 56.880 | 57.460 | 56.720 | 57.460 | 50.216 | 1,224,100 |
| 2017-05-31 | 56.810 | 56.940 | 56.340 | 56.730 | 49.578 | 1,357,100 |
| 2017-05-30 | 56.810 | 57.150 | 56.550 | 56.970 | 49.447 | 970,800 |
| 2017-05-26 | 57.420 | 57.540 | 57.110 | 57.120 | 49.577 | 854,800 |
| 2017-05-25 | 57.000 | 57.570 | 56.820 | 57.550 | 49.951 | 764,200 |
| 2017-05-24 | 56.720 | 56.910 | 56.520 | 56.840 | 49.334 | 542,400 |
| 2017-05-23 | 56.280 | 56.750 | 56.060 | 56.690 | 49.204 | 889,400 |
| 2017-05-22 | 55.900 | 56.320 | 55.670 | 56.270 | 48.840 | 789,400 |
| 2017-05-19 | 55.320 | 55.940 | 55.270 | 55.760 | 48.397 | 1,256,400 |
| 2017-05-18 | 55.240 | 55.590 | 54.910 | 55.380 | 48.067 | 790,000 |
| 2017-05-17 | 55.310 | 55.310 | 54.630 | 54.960 | 47.703 | 830,400 |
| 2017-05-16 | 55.270 | 55.480 | 55.050 | 55.310 | 48.006 | 561,100 |
| 2017-05-15 | 54.670 | 55.270 | 54.500 | 55.190 | 47.902 | 916,400 |
| 2017-05-12 | 54.920 | 55.200 | 54.620 | 54.730 | 47.503 | 791,800 |
| 2017-05-11 | 55.240 | 55.570 | 54.800 | 55.130 | 47.850 | 953,500 |
| 2017-05-10 | 55.090 | 55.620 | 54.930 | 55.480 | 48.154 | 950,900 |
| 2017-05-09 | 55.580 | 55.760 | 55.150 | 55.220 | 47.928 | 696,300 |
| 2017-05-08 | 55.830 | 55.930 | 55.350 | 55.480 | 48.154 | 750,400 |
| 2017-05-05 | 55.480 | 55.710 | 55.360 | 55.710 | 48.353 | 655,000 |
| 2017-05-04 | 55.250 | 55.460 | 54.860 | 55.360 | 48.050 | 1,241,800 |
| 2017-05-03 | 54.950 | 55.230 | 54.820 | 55.010 | 47.746 | 1,336,800 |
| 2017-05-02 | 55.660 | 56.210 | 54.890 | 55.070 | 47.798 | 1,749,700 |
| 2017-05-01 | 56.100 | 56.140 | 55.670 | 55.940 | 48.553 | 779,400 |
| 2017-04-28 | 56.310 | 56.310 | 55.250 | 55.810 | 48.440 | 1,130,000 |
| 2017-04-27 | 56.500 | 56.990 | 56.500 | 56.730 | 49.239 | 765,700 |
| 2017-04-26 | 56.430 | 56.700 | 56.280 | 56.350 | 48.909 | 954,200 |
| 2017-04-25 | 56.400 | 56.570 | 56.160 | 56.440 | 48.987 | 786,400 |
| 2017-04-24 | 56.490 | 56.500 | 55.850 | 56.050 | 48.649 | 833,600 |
| 2017-04-21 | 56.000 | 56.370 | 55.610 | 55.610 | 48.267 | 767,300 |
| 2017-04-20 | 56.030 | 56.480 | 55.790 | 56.250 | 48.822 | 2,009,700 |
| 2017-04-19 | 56.360 | 56.450 | 55.690 | 55.820 | 48.449 | 744,700 |
| 2017-04-18 | 56.140 | 56.440 | 55.880 | 56.040 | 48.640 | 774,300 |
| 2017-04-17 | 55.740 | 56.330 | 55.490 | 56.280 | 48.848 | 871,900 |
| 2017-04-13 | 55.660 | 55.860 | 55.470 | 55.510 | 48.180 | 534,900 |
| 2017-04-12 | 56.160 | 56.180 | 55.610 | 55.790 | 48.423 | 1,008,700 |
| 2017-04-11 | 56.100 | 56.530 | 55.890 | 56.300 | 48.866 | 1,034,000 |
| 2017-04-10 | 56.260 | 56.540 | 56.130 | 56.340 | 48.900 | 1,235,000 |
| 2017-04-07 | 56.270 | 56.570 | 56.080 | 56.330 | 48.892 | 894,900 |
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.