Arthur J. Gallagher & Co. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2025-11-03 | 249.49 | 249.49 | 239.47 | 242.98 | 240.13 | 2,586,700 |
| 2025-10-31 | 242.75 | 254.43 | 242.75 | 249.49 | 246.56 | 5,066,700 |
| 2025-10-30 | 264.50 | 265.83 | 261.29 | 262.03 | 258.95 | 2,712,700 |
| 2025-10-29 | 265.62 | 268.85 | 261.04 | 262.02 | 258.94 | 3,165,300 |
| 2025-10-28 | 277.24 | 279.00 | 266.71 | 267.50 | 264.36 | 2,838,800 |
| 2025-10-27 | 280.56 | 281.66 | 278.10 | 279.00 | 275.72 | 930,300 |
| 2025-10-24 | 282.50 | 284.17 | 280.29 | 280.73 | 277.43 | 1,437,200 |
| 2025-10-23 | 283.03 | 284.33 | 280.41 | 282.49 | 279.17 | 1,086,900 |
| 2025-10-22 | 279.52 | 284.06 | 277.92 | 283.04 | 279.72 | 1,405,900 |
| 2025-10-21 | 278.80 | 280.60 | 277.22 | 279.01 | 275.73 | 1,424,100 |
| 2025-10-20 | 280.22 | 280.82 | 275.73 | 279.26 | 275.98 | 1,171,200 |
| 2025-10-17 | 280.62 | 284.30 | 277.95 | 280.47 | 277.18 | 1,415,300 |
| 2025-10-16 | 287.27 | 288.33 | 276.50 | 280.17 | 276.88 | 2,379,700 |
| 2025-10-15 | 301.73 | 304.57 | 295.36 | 296.16 | 292.68 | 2,451,600 |
| 2025-10-14 | 298.45 | 303.98 | 296.87 | 303.73 | 300.16 | 1,234,600 |
| 2025-10-13 | 299.05 | 301.71 | 295.78 | 298.00 | 294.50 | 1,176,100 |
| 2025-10-10 | 304.30 | 305.74 | 300.66 | 301.74 | 298.20 | 1,184,600 |
| 2025-10-09 | 307.11 | 307.11 | 301.29 | 302.25 | 298.70 | 761,600 |
| 2025-10-08 | 310.35 | 310.35 | 306.84 | 306.94 | 303.33 | 636,900 |
| 2025-10-07 | 310.39 | 313.09 | 308.18 | 309.81 | 306.17 | 863,800 |
| 2025-10-06 | 310.50 | 311.67 | 307.68 | 309.15 | 305.52 | 1,053,600 |
| 2025-10-03 | 307.78 | 313.55 | 307.58 | 310.48 | 306.83 | 767,200 |
| 2025-10-02 | 303.07 | 308.72 | 302.00 | 308.67 | 305.04 | 1,004,300 |
| 2025-10-01 | 307.87 | 309.50 | 303.35 | 305.84 | 302.25 | 1,864,200 |
| 2025-09-30 | 305.00 | 310.49 | 304.46 | 309.74 | 306.10 | 1,671,300 |
| 2025-09-29 | 303.15 | 305.86 | 301.10 | 305.71 | 302.12 | 1,355,600 |
| 2025-09-26 | 304.92 | 308.80 | 303.18 | 304.15 | 300.58 | 877,100 |
| 2025-09-25 | 305.06 | 306.89 | 300.82 | 303.08 | 299.52 | 1,366,900 |
| 2025-09-24 | 302.48 | 305.69 | 300.84 | 304.55 | 300.97 | 1,125,500 |
| 2025-09-23 | 299.85 | 304.53 | 299.01 | 304.36 | 300.78 | 1,601,900 |
| 2025-09-22 | 299.11 | 300.52 | 296.49 | 300.06 | 296.54 | 1,446,900 |
| 2025-09-19 | 300.40 | 301.20 | 296.44 | 299.65 | 296.13 | 2,605,300 |
| 2025-09-18 | 293.00 | 297.02 | 291.31 | 296.74 | 293.25 | 1,405,700 |
| 2025-09-17 | 293.05 | 295.21 | 291.99 | 292.66 | 289.22 | 1,248,100 |
| 2025-09-16 | 287.81 | 292.75 | 285.80 | 291.46 | 288.04 | 1,175,600 |
| 2025-09-15 | 297.16 | 298.16 | 288.20 | 289.40 | 286.00 | 1,170,000 |
| 2025-09-12 | 299.01 | 300.81 | 297.22 | 297.28 | 293.79 | 1,302,100 |
| 2025-09-11 | 293.60 | 301.02 | 292.58 | 300.61 | 297.08 | 1,335,100 |
| 2025-09-10 | 297.34 | 298.32 | 292.83 | 293.18 | 289.74 | 1,854,700 |
| 2025-09-09 | 298.24 | 300.44 | 297.23 | 298.50 | 294.99 | 1,119,300 |
| 2025-09-08 | 298.31 | 300.00 | 295.14 | 299.12 | 295.61 | 1,153,100 |
| 2025-09-05 | 299.24 | 300.87 | 296.43 | 299.18 | 295.67 | 1,217,200 |
| 2025-09-04 | 304.96 | 305.48 | 300.08 | 300.22 | 296.05 | 1,282,400 |
| 2025-09-03 | 304.00 | 305.95 | 301.67 | 303.70 | 299.48 | 1,842,600 |
| 2025-09-02 | 303.17 | 303.25 | 299.14 | 302.57 | 298.37 | 1,673,400 |
| 2025-08-29 | 299.68 | 303.17 | 298.64 | 302.75 | 298.55 | 1,472,400 |
| 2025-08-28 | 297.88 | 299.93 | 296.62 | 299.62 | 295.46 | 769,100 |
| 2025-08-27 | 299.88 | 302.40 | 298.67 | 298.72 | 294.57 | 1,513,500 |
| 2025-08-26 | 298.06 | 300.27 | 295.74 | 300.20 | 296.03 | 2,312,400 |
| 2025-08-25 | 302.00 | 303.09 | 298.62 | 298.62 | 294.47 | 1,020,600 |
| 2025-08-22 | 306.68 | 307.38 | 302.46 | 303.17 | 298.96 | 1,165,400 |
| 2025-08-21 | 302.78 | 306.39 | 301.26 | 305.38 | 301.14 | 1,154,600 |
| 2025-08-20 | 302.09 | 305.13 | 300.64 | 302.64 | 298.44 | 1,568,500 |
| 2025-08-19 | 295.44 | 301.05 | 294.73 | 300.98 | 296.80 | 1,132,000 |
| 2025-08-18 | 292.02 | 296.53 | 291.08 | 294.51 | 290.42 | 1,376,300 |
| 2025-08-15 | 293.70 | 294.72 | 292.43 | 292.72 | 288.66 | 1,238,000 |
| 2025-08-14 | 295.50 | 295.50 | 289.93 | 293.41 | 289.34 | 1,280,200 |
| 2025-08-13 | 291.34 | 295.44 | 290.92 | 295.10 | 291.00 | 1,337,800 |
| 2025-08-12 | 289.10 | 291.21 | 286.82 | 290.65 | 286.61 | 1,275,900 |
| 2025-08-11 | 290.00 | 291.69 | 286.17 | 288.92 | 284.91 | 1,536,900 |
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.