Arthur J. Gallagher & Co. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2010-08-06 | 24.980 | 25.490 | 24.890 | 25.450 | 17.343 | 520,900 |
| 2010-08-05 | 25.280 | 25.420 | 25.120 | 25.130 | 17.125 | 378,500 |
| 2010-08-04 | 25.460 | 25.600 | 25.280 | 25.330 | 17.261 | 374,200 |
| 2010-08-03 | 25.390 | 25.580 | 25.320 | 25.380 | 17.295 | 406,300 |
| 2010-08-02 | 25.760 | 25.780 | 25.240 | 25.560 | 17.418 | 639,500 |
| 2010-07-30 | 24.890 | 25.470 | 24.850 | 25.420 | 17.322 | 461,300 |
| 2010-07-29 | 25.500 | 25.500 | 24.810 | 25.250 | 17.206 | 731,600 |
| 2010-07-28 | 25.740 | 26.050 | 25.150 | 25.350 | 17.275 | 797,600 |
| 2010-07-27 | 26.250 | 26.440 | 25.770 | 25.990 | 17.711 | 810,100 |
| 2010-07-26 | 25.900 | 26.270 | 25.810 | 26.150 | 17.820 | 491,400 |
| 2010-07-23 | 25.720 | 25.830 | 25.620 | 25.830 | 17.602 | 619,400 |
| 2010-07-22 | 25.540 | 25.810 | 25.520 | 25.800 | 17.581 | 654,100 |
| 2010-07-21 | 25.840 | 25.840 | 25.270 | 25.310 | 17.247 | 466,900 |
| 2010-07-20 | 25.000 | 25.780 | 24.870 | 25.780 | 17.568 | 419,700 |
| 2010-07-19 | 25.400 | 25.410 | 25.020 | 25.190 | 17.166 | 271,900 |
| 2010-07-16 | 25.700 | 25.750 | 25.270 | 25.280 | 17.227 | 557,800 |
| 2010-07-15 | 25.830 | 25.830 | 25.490 | 25.770 | 17.561 | 308,800 |
| 2010-07-14 | 25.770 | 25.910 | 25.700 | 25.810 | 17.588 | 403,000 |
| 2010-07-13 | 25.270 | 26.000 | 25.250 | 25.920 | 17.663 | 582,800 |
| 2010-07-12 | 25.220 | 25.280 | 24.980 | 25.120 | 17.118 | 277,100 |
| 2010-07-09 | 25.180 | 25.370 | 25.070 | 25.340 | 17.268 | 246,100 |
| 2010-07-08 | 25.110 | 25.270 | 24.900 | 25.210 | 17.179 | 632,600 |
| 2010-07-07 | 24.290 | 24.940 | 24.290 | 24.920 | 16.982 | 438,800 |
| 2010-07-06 | 24.630 | 24.710 | 24.130 | 24.290 | 16.552 | 380,400 |
| 2010-07-02 | 24.430 | 24.540 | 24.200 | 24.350 | 16.593 | 451,900 |
| 2010-07-01 | 24.360 | 24.420 | 23.960 | 24.390 | 16.620 | 688,400 |
| 2010-06-30 | 24.750 | 24.890 | 24.380 | 24.380 | 16.614 | 549,700 |
| 2010-06-29 | 25.120 | 25.190 | 24.720 | 24.790 | 16.893 | 668,800 |
| 2010-06-28 | 25.750 | 25.750 | 25.340 | 25.390 | 17.302 | 614,700 |
| 2010-06-25 | 25.670 | 26.050 | 25.440 | 25.900 | 17.431 | 1,962,600 |
| 2010-06-24 | 25.540 | 25.800 | 25.500 | 25.680 | 17.283 | 613,400 |
| 2010-06-23 | 25.600 | 25.800 | 25.380 | 25.670 | 17.277 | 454,300 |
| 2010-06-22 | 25.860 | 26.050 | 25.590 | 25.590 | 17.223 | 373,900 |
| 2010-06-21 | 25.930 | 25.990 | 25.730 | 25.810 | 17.371 | 499,200 |
| 2010-06-18 | 25.680 | 25.680 | 25.350 | 25.660 | 17.270 | 427,300 |
| 2010-06-17 | 25.790 | 25.800 | 25.360 | 25.670 | 17.277 | 482,900 |
| 2010-06-16 | 25.650 | 25.750 | 25.440 | 25.720 | 17.310 | 499,100 |
| 2010-06-15 | 25.420 | 25.770 | 25.280 | 25.740 | 17.324 | 519,500 |
| 2010-06-14 | 25.290 | 25.550 | 25.120 | 25.360 | 17.068 | 859,300 |
| 2010-06-11 | 24.550 | 25.100 | 24.530 | 25.080 | 16.879 | 349,000 |
| 2010-06-10 | 24.640 | 24.820 | 24.530 | 24.790 | 16.684 | 389,900 |
| 2010-06-09 | 24.550 | 24.650 | 24.240 | 24.270 | 16.334 | 632,200 |
| 2010-06-08 | 24.280 | 24.460 | 23.960 | 24.420 | 16.435 | 543,800 |
| 2010-06-07 | 24.630 | 24.740 | 24.290 | 24.290 | 16.348 | 448,000 |
| 2010-06-04 | 25.200 | 25.340 | 24.490 | 24.520 | 16.503 | 566,200 |
| 2010-06-03 | 25.660 | 25.660 | 24.870 | 25.540 | 17.189 | 778,200 |
| 2010-06-02 | 24.410 | 24.700 | 24.280 | 24.700 | 16.624 | 458,900 |
| 2010-06-01 | 24.620 | 24.870 | 24.370 | 24.370 | 16.402 | 410,900 |
| 2010-05-28 | 24.770 | 24.920 | 24.560 | 24.690 | 16.617 | 348,900 |
| 2010-05-27 | 24.340 | 24.850 | 24.210 | 24.840 | 16.718 | 620,700 |
| 2010-05-26 | 24.190 | 24.370 | 23.920 | 23.950 | 16.119 | 620,700 |
| 2010-05-25 | 23.850 | 24.190 | 23.660 | 24.150 | 16.254 | 549,600 |
| 2010-05-24 | 24.520 | 24.670 | 24.400 | 24.450 | 16.455 | 469,700 |
| 2010-05-21 | 24.170 | 24.670 | 23.930 | 24.650 | 16.590 | 965,300 |
| 2010-05-20 | 24.510 | 24.830 | 24.430 | 24.430 | 16.442 | 1,326,600 |
| 2010-05-19 | 24.850 | 25.130 | 24.690 | 24.900 | 16.758 | 560,200 |
| 2010-05-18 | 25.360 | 25.360 | 24.840 | 25.000 | 16.826 | 820,600 |
| 2010-05-17 | 25.140 | 25.260 | 24.630 | 25.110 | 16.900 | 593,900 |
| 2010-05-14 | 25.010 | 25.200 | 24.940 | 25.130 | 16.913 | 880,400 |
| 2010-05-13 | 25.380 | 25.450 | 25.190 | 25.190 | 16.954 | 631,500 |
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.