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 |
|---|---|---|---|---|---|
February 2026 | $250.42 | $255.18 | $210.01 | $212.58 | 18,859,248 |
January 2026 | $257.11 | $266.87 | $236.53 | $249.37 | 41,076,900 |
December 2025 | $247.74 | $263.79 | $236.34 | $258.79 | 35,345,248 |
November 2025 | $248.83 | $261.89 | $238.84 | $246.96 | 32,289,300 |
October 2025 | $307.05 | $312.72 | $242.11 | $248.83 | 38,032,600 |
September 2025 | $301.71 | $309.67 | $285.04 | $308.92 | 29,829,800 |
August 2025 | $283.63 | $305.90 | $276.20 | $301.29 | 32,377,600 |
July 2025 | $318.58 | $321.70 | $280.48 | $285.87 | 30,018,500 |
June 2025 | $341.09 | $348.85 | $307.49 | $318.58 | 31,041,700 |
May 2025 | $315.44 | $345.94 | $311.29 | $345.08 | 24,379,200 |
April 2025 | $342.73 | $348.32 | $299.17 | $318.52 | 34,555,900 |
March 2025 | $333.95 | $344.60 | $316.08 | $342.90 | 34,743,000 |
February 2025 | $297.15 | $335.49 | $296.77 | $334.81 | 27,688,000 |
January 2025 | $282.91 | $305.07 | $273.17 | $299.20 | 39,022,900 |
December 2024 | $309.19 | $309.68 | $274.50 | $281.39 | 61,255,900 |
November 2024 | $278.75 | $313.35 | $276.63 | $308.92 | 18,925,500 |
October 2024 | $278.65 | $294.59 | $274.49 | $278.21 | 21,885,100 |
September 2024 | $289.20 | $297.84 | $271.33 | $278.38 | 17,354,600 |
August 2024 | $281.76 | $290.28 | $274.45 | $288.87 | 15,365,800 |
July 2024 | $256.71 | $283.96 | $254.32 | $279.90 | 16,445,300 |
June 2024 | $248.98 | $263.02 | $246.97 | $256.03 | 19,431,000 |
May 2024 | $230.95 | $255.46 | $230.81 | $249.53 | 15,899,100 |
April 2024 | $245.34 | $246.05 | $226.63 | $231.17 | 17,963,900 |
March 2024 | $240.05 | $252.26 | $237.60 | $246.29 | 16,981,700 |
February 2024 | $226.04 | $242.00 | $223.47 | $240.27 | 17,230,500 |
