Arthur J. Gallagher & Co. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2025-08-08 | 290.95 | 293.97 | 288.42 | 289.44 | 285.42 | 1,726,200 |
| 2025-08-07 | 286.54 | 290.07 | 285.08 | 289.99 | 285.96 | 3,116,000 |
| 2025-08-06 | 286.42 | 288.00 | 284.14 | 286.26 | 282.29 | 1,136,200 |
| 2025-08-05 | 284.31 | 288.02 | 282.53 | 285.78 | 281.81 | 1,681,700 |
| 2025-08-04 | 284.49 | 286.87 | 282.23 | 284.61 | 280.66 | 1,776,100 |
| 2025-08-01 | 285.00 | 286.00 | 277.53 | 284.17 | 280.22 | 2,787,800 |
| 2025-07-31 | 282.02 | 290.93 | 281.83 | 287.25 | 283.26 | 2,554,700 |
| 2025-07-30 | 291.15 | 291.15 | 284.94 | 285.84 | 281.87 | 2,920,400 |
| 2025-07-29 | 307.90 | 309.05 | 287.61 | 288.35 | 284.35 | 4,081,200 |
| 2025-07-28 | 315.00 | 315.00 | 308.29 | 309.12 | 304.83 | 1,237,200 |
| 2025-07-25 | 310.10 | 315.48 | 310.10 | 315.14 | 310.76 | 897,400 |
| 2025-07-24 | 309.53 | 311.83 | 309.00 | 309.06 | 304.77 | 738,200 |
| 2025-07-23 | 313.64 | 313.64 | 308.74 | 310.79 | 306.47 | 659,400 |
| 2025-07-22 | 308.80 | 313.03 | 308.32 | 312.41 | 308.07 | 1,107,900 |
| 2025-07-21 | 312.67 | 313.13 | 307.91 | 308.24 | 303.96 | 772,700 |
| 2025-07-18 | 314.25 | 316.71 | 312.14 | 313.14 | 308.79 | 691,300 |
| 2025-07-17 | 309.16 | 314.63 | 309.14 | 313.91 | 309.55 | 1,288,100 |
| 2025-07-16 | 309.98 | 311.40 | 305.39 | 309.92 | 305.62 | 1,567,900 |
| 2025-07-15 | 314.61 | 315.57 | 307.87 | 308.06 | 303.78 | 1,010,800 |
| 2025-07-14 | 311.17 | 315.45 | 311.17 | 315.40 | 311.02 | 1,425,500 |
| 2025-07-11 | 312.91 | 315.28 | 310.26 | 311.54 | 307.21 | 715,200 |
| 2025-07-10 | 313.99 | 315.76 | 312.19 | 313.58 | 309.23 | 948,800 |
| 2025-07-09 | 313.26 | 316.89 | 311.05 | 315.25 | 310.87 | 1,401,400 |
| 2025-07-08 | 313.06 | 316.20 | 312.28 | 313.76 | 309.40 | 1,110,100 |
| 2025-07-07 | 316.93 | 318.34 | 313.90 | 316.07 | 311.68 | 1,232,200 |
| 2025-07-03 | 316.00 | 319.25 | 315.23 | 318.10 | 313.68 | 639,900 |
| 2025-07-02 | 317.55 | 320.00 | 309.39 | 315.74 | 311.36 | 1,450,800 |
| 2025-07-01 | 320.12 | 323.25 | 316.22 | 319.49 | 315.05 | 1,567,400 |
| 2025-06-30 | 315.62 | 321.07 | 314.50 | 320.12 | 315.67 | 1,620,100 |
| 2025-06-27 | 318.26 | 320.57 | 315.00 | 317.73 | 313.32 | 5,447,000 |
| 2025-06-26 | 318.00 | 319.79 | 315.39 | 318.39 | 313.97 | 1,397,300 |
| 2025-06-25 | 325.00 | 325.50 | 316.83 | 317.43 | 313.02 | 1,507,300 |
| 2025-06-24 | 325.16 | 327.34 | 318.65 | 325.98 | 321.45 | 1,037,400 |
| 2025-06-23 | 320.75 | 324.53 | 319.84 | 324.12 | 319.62 | 1,311,700 |
| 2025-06-20 | 318.62 | 322.92 | 318.18 | 320.16 | 315.71 | 2,537,100 |
| 2025-06-18 | 316.30 | 319.41 | 314.71 | 317.13 | 312.73 | 1,048,800 |
| 2025-06-17 | 314.37 | 318.16 | 313.23 | 316.13 | 311.74 | 958,400 |
| 2025-06-16 | 317.58 | 319.30 | 315.60 | 316.33 | 311.94 | 1,294,100 |
| 2025-06-13 | 318.89 | 320.74 | 316.17 | 316.64 | 312.24 | 1,039,000 |
| 2025-06-12 | 313.26 | 320.71 | 312.38 | 320.15 | 315.70 | 1,416,700 |
| 2025-06-11 | 312.32 | 315.40 | 308.98 | 312.94 | 308.59 | 1,428,700 |
| 2025-06-10 | 319.15 | 321.24 | 312.30 | 314.40 | 310.03 | 1,473,100 |
| 2025-06-09 | 326.53 | 327.83 | 312.18 | 317.83 | 313.42 | 1,616,300 |
| 2025-06-06 | 328.46 | 330.78 | 327.27 | 328.76 | 324.19 | 735,200 |
| 2025-06-05 | 336.34 | 337.33 | 325.06 | 328.10 | 322.90 | 1,851,400 |
| 2025-06-04 | 345.39 | 346.01 | 336.29 | 336.34 | 331.01 | 1,300,200 |
| 2025-06-03 | 349.65 | 351.23 | 341.76 | 345.25 | 339.78 | 1,035,800 |
| 2025-06-02 | 343.42 | 348.90 | 342.15 | 348.77 | 343.25 | 986,100 |
| 2025-05-30 | 341.72 | 348.30 | 341.00 | 347.44 | 341.94 | 2,545,200 |
| 2025-05-29 | 338.75 | 342.05 | 337.59 | 341.90 | 336.48 | 628,800 |
| 2025-05-28 | 341.54 | 344.04 | 339.17 | 339.80 | 334.42 | 1,136,700 |
| 2025-05-27 | 339.77 | 343.03 | 337.20 | 342.75 | 337.32 | 976,400 |
| 2025-05-23 | 336.27 | 339.41 | 333.47 | 338.04 | 332.69 | 859,400 |
| 2025-05-22 | 337.37 | 339.08 | 333.65 | 335.48 | 330.17 | 771,700 |
| 2025-05-21 | 340.04 | 341.89 | 336.25 | 337.53 | 332.18 | 867,100 |
| 2025-05-20 | 342.97 | 344.25 | 339.65 | 340.33 | 334.94 | 908,800 |
| 2025-05-19 | 343.18 | 344.64 | 341.67 | 343.82 | 338.37 | 610,900 |
| 2025-05-16 | 339.01 | 342.85 | 337.88 | 342.24 | 336.82 | 973,200 |
| 2025-05-15 | 330.76 | 338.45 | 330.20 | 338.28 | 332.92 | 1,013,200 |
| 2025-05-14 | 334.58 | 334.58 | 326.06 | 329.64 | 324.42 | 898,500 |
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.