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Arthur J. Gallagher & Co. (AJG)
NYSE: AJG · Real-Time Price · USD
309.15
-1.33 (-0.43%)
At close: Oct 6, 2025, 4:00 PM EDT
306.74
-2.41 (-0.78%)
After-hours: Oct 6, 2025, 5:28 PM EDT

Arthur J. Gallagher & Co. Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Oct 6, 2025310.50311.67307.68308.70--0.57%433,430
Oct 3, 2025307.78313.55307.59310.48310.480.59%767,240
Oct 2, 2025303.07308.72302.00308.67308.670.93%1,004,339
Oct 1, 2025307.87309.50303.35305.84305.84-1.26%1,864,306
Sep 30, 2025305.00310.49304.47309.74309.741.32%1,671,255
Sep 29, 2025303.15305.86301.10305.71305.710.51%1,355,603
Sep 26, 2025304.92308.80303.18304.15304.150.35%877,053
Sep 25, 2025305.06306.89300.82303.08303.08-0.48%1,366,884
Sep 24, 2025302.48305.69300.84304.55304.550.06%1,125,494
Sep 23, 2025299.85304.53299.01304.36304.361.43%1,602,058
Sep 22, 2025299.11300.52296.49300.06300.060.14%1,446,940
Sep 19, 2025300.40301.20296.44299.65299.650.98%2,605,274
Sep 18, 2025293.00297.02291.31296.74296.741.39%1,405,728
Sep 17, 2025293.05295.21291.99292.66292.660.41%1,248,129
Sep 16, 2025287.81292.75285.80291.46291.460.71%1,175,792
Sep 15, 2025297.16298.16288.20289.40289.40-2.65%1,169,957
Sep 12, 2025299.01300.81297.22297.28297.28-1.11%1,302,078
Sep 11, 2025293.60301.02292.58300.61300.612.53%1,335,113
Sep 10, 2025297.34298.32292.83293.18293.18-1.78%1,854,736
Sep 9, 2025298.24300.44297.23298.50298.50-0.21%1,119,301
Sep 8, 2025298.31300.00295.14299.12299.12-0.02%1,153,122
Sep 5, 2025299.24300.87296.43299.18299.18-0.35%1,217,177
Sep 4, 2025304.96305.48300.08300.22299.57-1.15%1,282,371
Sep 3, 2025304.00305.95301.67303.70303.040.37%1,831,463
Sep 2, 2025303.17303.25299.14302.57301.91-0.06%1,673,483
Aug 29, 2025299.68303.17298.64302.75302.091.04%1,472,424
Aug 28, 2025297.88299.93296.62299.62298.970.30%769,117
Aug 27, 2025299.88302.40298.67298.72298.07-0.49%1,513,535
Aug 26, 2025298.06300.27295.74300.20299.550.53%2,312,415
Aug 25, 2025302.00303.09298.62298.62297.97-1.50%1,020,592
Aug 22, 2025306.68307.38302.46303.17302.51-0.72%1,165,433
Aug 21, 2025302.78306.39301.26305.38304.720.91%1,154,636
Aug 20, 2025302.09305.13300.64302.64301.980.55%1,568,451
Aug 19, 2025295.44301.05294.73300.98300.332.20%1,132,003
Aug 18, 2025292.02296.53291.08294.51293.870.61%1,376,345
Aug 15, 2025293.70294.72292.43292.72292.09-0.24%1,237,952
Aug 14, 2025295.50295.50289.93293.41292.77-0.57%1,280,156
Aug 13, 2025291.34295.44290.92295.10294.461.53%1,337,795
Aug 12, 2025289.10291.21286.82290.65290.020.60%1,275,915
Aug 11, 2025290.00291.69286.17288.92288.29-0.18%1,536,865
Aug 8, 2025290.95293.97288.42289.44288.81-0.19%1,726,231
Aug 7, 2025286.54290.07285.08289.99289.361.30%3,115,980
Aug 6, 2025286.42288.00284.14286.26285.640.17%1,136,219
Aug 5, 2025284.31288.02282.53285.78285.160.41%1,681,717
Aug 4, 2025284.49286.87282.23284.61283.990.15%1,776,089
Aug 1, 2025285.00286.00277.53284.17283.55-1.07%2,787,757
Jul 31, 2025282.02290.93281.83287.25286.630.49%2,554,727
Jul 30, 2025291.15291.15284.94285.84285.22-0.87%2,920,361
Jul 29, 2025307.90309.05287.61288.35287.73-6.72%4,081,300
Jul 28, 2025315.00315.00308.29309.12308.45-1.91%1,237,247