Arthur J. Gallagher & Co. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2012-04-04 | 35.830 | 36.180 | 35.770 | 35.970 | 26.484 | 1,019,400 |
| 2012-04-03 | 35.730 | 36.030 | 35.600 | 36.030 | 26.528 | 1,139,600 |
| 2012-04-02 | 35.760 | 35.990 | 35.520 | 35.820 | 26.374 | 773,800 |
| 2012-03-30 | 35.970 | 36.000 | 35.730 | 35.740 | 26.315 | 766,700 |
| 2012-03-29 | 35.710 | 35.830 | 35.420 | 35.750 | 26.322 | 537,700 |
| 2012-03-28 | 35.890 | 36.030 | 35.640 | 35.950 | 26.469 | 764,200 |
| 2012-03-27 | 35.920 | 36.080 | 35.880 | 36.010 | 26.263 | 527,400 |
| 2012-03-26 | 35.500 | 35.990 | 35.440 | 35.990 | 26.249 | 521,500 |
| 2012-03-23 | 35.160 | 35.440 | 34.950 | 35.430 | 25.840 | 336,700 |
| 2012-03-22 | 35.150 | 35.300 | 34.930 | 35.110 | 25.607 | 415,000 |
| 2012-03-21 | 35.520 | 35.630 | 35.330 | 35.350 | 25.782 | 440,300 |
| 2012-03-20 | 35.290 | 35.750 | 35.180 | 35.510 | 25.899 | 537,500 |
| 2012-03-19 | 35.590 | 35.850 | 35.340 | 35.420 | 25.833 | 900,800 |
| 2012-03-16 | 36.330 | 36.330 | 35.690 | 35.710 | 26.044 | 1,361,900 |
| 2012-03-15 | 35.840 | 36.320 | 35.650 | 36.260 | 26.446 | 663,600 |
| 2012-03-14 | 35.840 | 35.990 | 35.600 | 35.780 | 26.095 | 520,400 |
| 2012-03-13 | 35.500 | 35.810 | 35.350 | 35.810 | 26.117 | 547,300 |
| 2012-03-12 | 35.050 | 35.500 | 34.950 | 35.320 | 25.760 | 493,900 |
| 2012-03-09 | 34.980 | 35.210 | 34.890 | 35.120 | 25.614 | 656,500 |
| 2012-03-08 | 34.560 | 34.930 | 34.480 | 34.910 | 25.461 | 529,400 |
| 2012-03-07 | 34.260 | 34.470 | 34.040 | 34.470 | 25.140 | 540,900 |
| 2012-03-06 | 34.220 | 34.450 | 34.200 | 34.240 | 24.972 | 523,500 |
| 2012-03-05 | 34.080 | 34.570 | 34.000 | 34.470 | 25.140 | 356,400 |
| 2012-03-02 | 34.580 | 34.630 | 34.110 | 34.200 | 24.943 | 300,500 |
| 2012-03-01 | 34.200 | 34.650 | 34.060 | 34.650 | 25.271 | 476,300 |
| 2012-02-29 | 34.340 | 34.490 | 34.090 | 34.120 | 24.885 | 391,300 |
| 2012-02-28 | 34.360 | 34.460 | 34.150 | 34.250 | 24.980 | 231,500 |
| 2012-02-27 | 34.270 | 34.590 | 33.900 | 34.330 | 25.038 | 563,000 |
| 2012-02-24 | 34.710 | 34.710 | 34.290 | 34.510 | 25.169 | 426,300 |
| 2012-02-23 | 34.540 | 34.720 | 34.260 | 34.670 | 25.286 | 564,200 |
| 2012-02-22 | 34.060 | 34.690 | 34.060 | 34.400 | 25.089 | 879,300 |
| 2012-02-21 | 34.800 | 34.820 | 34.360 | 34.550 | 25.198 | 975,500 |
| 2012-02-17 | 34.970 | 35.000 | 34.830 | 34.840 | 25.410 | 619,500 |
| 2012-02-16 | 34.610 | 35.050 | 34.610 | 34.860 | 25.424 | 754,200 |
| 2012-02-15 | 35.070 | 35.120 | 34.620 | 34.700 | 25.308 | 595,300 |
| 2012-02-14 | 35.200 | 35.290 | 34.920 | 35.070 | 25.578 | 483,100 |
| 2012-02-13 | 35.470 | 35.690 | 35.210 | 35.280 | 25.731 | 446,200 |
| 2012-02-10 | 35.020 | 35.300 | 34.980 | 35.220 | 25.687 | 420,500 |
| 2012-02-09 | 35.190 | 35.550 | 35.040 | 35.500 | 25.891 | 506,800 |
| 2012-02-08 | 35.050 | 35.270 | 34.980 | 35.220 | 25.687 | 545,400 |
| 2012-02-07 | 34.820 | 35.330 | 34.770 | 35.200 | 25.672 | 551,900 |
| 2012-02-06 | 34.490 | 34.960 | 34.030 | 34.950 | 25.490 | 799,800 |
| 2012-02-03 | 34.920 | 34.950 | 34.580 | 34.780 | 25.366 | 904,000 |
| 2012-02-02 | 34.450 | 34.800 | 34.300 | 34.670 | 25.286 | 923,600 |
| 2012-02-01 | 33.860 | 34.450 | 33.090 | 34.300 | 25.016 | 1,053,500 |
| 2012-01-31 | 33.600 | 33.780 | 33.190 | 33.340 | 24.316 | 598,400 |
| 2012-01-30 | 33.200 | 33.510 | 32.800 | 33.380 | 24.345 | 925,500 |
| 2012-01-27 | 33.040 | 33.570 | 33.040 | 33.390 | 24.352 | 645,000 |
| 2012-01-26 | 33.640 | 33.810 | 33.490 | 33.510 | 24.440 | 464,500 |
| 2012-01-25 | 33.460 | 33.560 | 33.230 | 33.550 | 24.469 | 504,800 |
| 2012-01-24 | 33.400 | 33.600 | 33.300 | 33.470 | 24.411 | 580,500 |
| 2012-01-23 | 33.270 | 33.560 | 33.160 | 33.560 | 24.476 | 462,900 |
| 2012-01-20 | 33.080 | 33.310 | 32.930 | 33.280 | 24.272 | 643,100 |
| 2012-01-19 | 33.450 | 33.450 | 33.070 | 33.130 | 24.163 | 299,600 |
| 2012-01-18 | 32.890 | 33.290 | 32.760 | 33.290 | 24.279 | 251,400 |
| 2012-01-17 | 33.010 | 33.250 | 32.720 | 32.850 | 23.959 | 418,400 |
| 2012-01-13 | 32.870 | 33.060 | 32.800 | 32.980 | 24.053 | 473,500 |
| 2012-01-12 | 33.090 | 33.230 | 32.890 | 33.040 | 24.097 | 310,100 |
| 2012-01-11 | 32.890 | 33.120 | 32.760 | 33.020 | 24.082 | 393,800 |
| 2012-01-10 | 33.090 | 33.130 | 32.830 | 33.010 | 24.075 | 455,200 |
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.