Arthur J. Gallagher & Co. (AJG)
NYSE: AJG · Real-Time Price · USD
289.40
-7.88 (-2.65%)
At close: Sep 15, 2025, 4:00 PM EDT
297.52
+8.12 (2.81%)
After-hours: Sep 15, 2025, 7:19 PM EDT
Arthur J. Gallagher & Co. Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Sep 15, 2025 | 297.16 | 298.16 | 288.20 | 289.40 | 289.40 | -2.65% | 1,165,508 |
| Sep 12, 2025 | 299.01 | 300.81 | 297.22 | 297.28 | 297.28 | -1.11% | 1,302,078 |
| Sep 11, 2025 | 293.60 | 301.02 | 292.58 | 300.61 | 300.61 | 2.53% | 1,335,113 |
| Sep 10, 2025 | 297.34 | 298.32 | 292.83 | 293.18 | 293.18 | -1.78% | 1,854,736 |
| Sep 9, 2025 | 298.24 | 300.44 | 297.23 | 298.50 | 298.50 | -0.21% | 1,119,301 |
| Sep 8, 2025 | 298.31 | 300.00 | 295.14 | 299.12 | 299.12 | -0.02% | 1,153,122 |
| Sep 5, 2025 | 299.24 | 300.87 | 296.43 | 299.18 | 299.18 | -0.35% | 1,217,177 |
| Sep 4, 2025 | 304.96 | 305.48 | 300.08 | 300.22 | 299.57 | -1.15% | 1,282,371 |
| Sep 3, 2025 | 304.00 | 305.95 | 301.67 | 303.70 | 303.04 | 0.37% | 1,831,463 |
| Sep 2, 2025 | 303.17 | 303.25 | 299.14 | 302.57 | 301.91 | -0.06% | 1,673,483 |
| Aug 29, 2025 | 299.68 | 303.17 | 298.64 | 302.75 | 302.09 | 1.04% | 1,472,424 |
| Aug 28, 2025 | 297.88 | 299.93 | 296.62 | 299.62 | 298.97 | 0.30% | 769,117 |
| Aug 27, 2025 | 299.88 | 302.40 | 298.67 | 298.72 | 298.07 | -0.49% | 1,513,535 |
| Aug 26, 2025 | 298.06 | 300.27 | 295.74 | 300.20 | 299.55 | 0.53% | 2,312,415 |
| Aug 25, 2025 | 302.00 | 303.09 | 298.62 | 298.62 | 297.97 | -1.50% | 1,020,592 |
| Aug 22, 2025 | 306.68 | 307.38 | 302.46 | 303.17 | 302.51 | -0.72% | 1,165,433 |
| Aug 21, 2025 | 302.78 | 306.39 | 301.26 | 305.38 | 304.72 | 0.91% | 1,154,636 |
| Aug 20, 2025 | 302.09 | 305.13 | 300.64 | 302.64 | 301.98 | 0.55% | 1,568,451 |
| Aug 19, 2025 | 295.44 | 301.05 | 294.73 | 300.98 | 300.33 | 2.20% | 1,132,003 |
| Aug 18, 2025 | 292.02 | 296.53 | 291.08 | 294.51 | 293.87 | 0.61% | 1,376,345 |
| Aug 15, 2025 | 293.70 | 294.72 | 292.43 | 292.72 | 292.09 | -0.24% | 1,237,952 |
| Aug 14, 2025 | 295.50 | 295.50 | 289.93 | 293.41 | 292.77 | -0.57% | 1,280,156 |
| Aug 13, 2025 | 291.34 | 295.44 | 290.92 | 295.10 | 294.46 | 1.53% | 1,337,795 |
| Aug 12, 2025 | 289.10 | 291.21 | 286.82 | 290.65 | 290.02 | 0.60% | 1,275,915 |
| Aug 11, 2025 | 290.00 | 291.69 | 286.17 | 288.92 | 288.29 | -0.18% | 1,536,865 |
| Aug 8, 2025 | 290.95 | 293.97 | 288.42 | 289.44 | 288.81 | -0.19% | 1,726,231 |
| Aug 7, 2025 | 286.54 | 290.07 | 285.08 | 289.99 | 289.36 | 1.30% | 3,115,980 |
| Aug 6, 2025 | 286.42 | 288.00 | 284.14 | 286.26 | 285.64 | 0.17% | 1,136,219 |
| Aug 5, 2025 | 284.31 | 288.02 | 282.53 | 285.78 | 285.16 | 0.41% | 1,681,717 |
| Aug 4, 2025 | 284.49 | 286.87 | 282.23 | 284.61 | 283.99 | 0.15% | 1,776,089 |
| Aug 1, 2025 | 285.00 | 286.00 | 277.53 | 284.17 | 283.55 | -1.07% | 2,787,757 |
| Jul 31, 2025 | 282.02 | 290.93 | 281.83 | 287.25 | 286.63 | 0.49% | 2,554,727 |
| Jul 30, 2025 | 291.15 | 291.15 | 284.94 | 285.84 | 285.22 | -0.87% | 2,920,361 |
| Jul 29, 2025 | 307.90 | 309.05 | 287.61 | 288.35 | 287.73 | -6.72% | 4,081,300 |
| Jul 28, 2025 | 315.00 | 315.00 | 308.29 | 309.12 | 308.45 | -1.91% | 1,237,247 |
| Jul 25, 2025 | 310.10 | 315.48 | 310.10 | 315.14 | 314.46 | 1.97% | 897,384 |
| Jul 24, 2025 | 309.53 | 311.83 | 309.00 | 309.06 | 308.39 | -0.56% | 738,163 |
| Jul 23, 2025 | 313.64 | 313.64 | 308.74 | 310.79 | 310.12 | -0.52% | 659,361 |
| Jul 22, 2025 | 308.80 | 313.03 | 308.32 | 312.41 | 311.73 | 1.35% | 1,107,920 |
| Jul 21, 2025 | 312.67 | 313.13 | 307.91 | 308.24 | 307.57 | -1.56% | 772,699 |
| Jul 18, 2025 | 314.25 | 316.71 | 312.14 | 313.14 | 312.46 | -0.25% | 691,271 |
| Jul 17, 2025 | 309.16 | 314.63 | 309.14 | 313.91 | 313.23 | 1.29% | 1,288,062 |
| Jul 16, 2025 | 309.98 | 311.41 | 305.39 | 309.92 | 309.25 | 0.60% | 1,567,885 |
| Jul 15, 2025 | 314.61 | 315.57 | 307.87 | 308.06 | 307.39 | -2.33% | 1,011,050 |
| Jul 14, 2025 | 311.17 | 315.45 | 311.17 | 315.40 | 314.72 | 1.24% | 1,425,486 |
| Jul 11, 2025 | 312.91 | 315.28 | 310.26 | 311.54 | 310.87 | -0.65% | 715,217 |
| Jul 10, 2025 | 313.99 | 315.76 | 312.19 | 313.58 | 312.90 | -0.53% | 948,819 |
| Jul 9, 2025 | 313.26 | 316.89 | 311.05 | 315.25 | 314.57 | 0.47% | 1,401,443 |
| Jul 8, 2025 | 313.06 | 316.20 | 312.28 | 313.76 | 313.08 | -0.73% | 1,110,061 |
| Jul 7, 2025 | 316.93 | 318.34 | 313.90 | 316.07 | 315.39 | -0.64% | 1,232,254 |