Arthur J Gallagher (AJG) went public on September 7, 1984, when it opened at a split-adjusted price of $0.70.
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
November 2025 | $249.49 | $262.59 | $239.47 | $258.51 | 17,998,200 |
October 2025 | $307.87 | $313.55 | $242.75 | $249.49 | 38,032,726 |
September 2025 | $302.51 | $310.49 | $285.80 | $309.74 | 29,829,800 |
August 2025 | $284.38 | $306.71 | $276.93 | $302.09 | 32,377,600 |
July 2025 | $319.43 | $322.55 | $281.22 | $286.63 | 30,018,500 |
June 2025 | $342.00 | $349.78 | $308.31 | $319.43 | 31,041,700 |
May 2025 | $316.27 | $346.86 | $312.11 | $346.00 | 24,379,200 |
April 2025 | $343.64 | $349.25 | $299.96 | $319.36 | 34,555,900 |
March 2025 | $334.83 | $345.51 | $316.92 | $343.81 | 34,743,000 |
February 2025 | $297.94 | $336.38 | $297.56 | $335.70 | 27,688,000 |
January 2025 | $283.66 | $305.88 | $273.89 | $300.00 | 39,022,900 |
December 2024 | $310.01 | $310.50 | $275.23 | $282.13 | 61,255,900 |
November 2024 | $279.49 | $314.18 | $277.36 | $309.74 | 18,925,500 |
October 2024 | $279.39 | $295.37 | $275.22 | $278.95 | 21,885,100 |
September 2024 | $289.96 | $298.63 | $272.05 | $279.12 | 17,354,600 |
August 2024 | $282.51 | $291.05 | $275.18 | $289.64 | 15,365,800 |
July 2024 | $257.39 | $284.72 | $255.00 | $280.65 | 16,445,300 |
June 2024 | $249.64 | $263.72 | $247.62 | $256.71 | 19,431,000 |
May 2024 | $231.57 | $256.14 | $231.43 | $250.19 | 15,899,100 |
April 2024 | $246.00 | $246.71 | $227.23 | $231.78 | 17,963,900 |
March 2024 | $240.69 | $252.93 | $238.23 | $246.94 | 16,981,700 |
February 2024 | $226.64 | $242.65 | $224.06 | $240.91 | 17,230,500 |
January 2024 | $221.53 | $237.70 | $220.12 | $228.72 | 20,058,400 |
December 2023 | $244.72 | $245.79 | $215.39 | $221.55 | 21,928,200 |
November 2023 | $231.80 | $249.68 | $230.00 | $245.32 | 17,851,500 |
