NYSE:AJG | Historical Stock Price | Arthur J. Gallagher & Co.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1984-06-20 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$1.72$6.20$22.31$80.29$288.98$1,040.131984-06-202026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2026

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$265.8547,556
2026-09-03$266.2993,272
2026-09-02$262.5095,109
2026-09-01$263.53102,371
2026-08-31$266.5377,551
2026-08-28$263.1896,342
2026-08-27$260.15$768.46977,400$261.0861,355
2026-08-26$265.03$782.871,426,200$265.4490,170
2026-08-25$268.51$793.151,752,800$269.3873,019
2026-08-24$271.99$803.431,531,400$264.6474,675
2026-08-21$263.81$779.271,154,600$259.6157,613
2026-08-20$259.61$766.861,340,700$257.9455,004
2026-08-19$257.45$760.481,553,400$250.3469,073
2026-08-18$248.36$733.631,287,000$250.2168,773
2026-08-17$247.97$732.48853,800$249.4640,493
2026-08-14$251.21$742.05895,800$255.0149,741
2026-08-13$253.49$748.791,011,600$257.2263,149
2026-08-12$255.46$754.601,475,000$250.9984,478
2026-08-11$253.51$748.841,648,700$250.4074,676
2026-08-10$252.43$745.651,280,100$247.0258,619
2026-08-07$248.12$732.921,128,700$250.2077,739
2026-08-06$251.74$743.621,287,600$251.6268,710
2026-08-05$251.03$741.52956,400$250.0039,029
2026-08-04$248.06$732.751,419,500$244.9083,999
2026-08-03$247.79$731.951,581,800$252.1884,818
2026-07-31$249.42$736.761,736,300$249.1080,690
2026-07-30$256.46$757.561,926,400$263.3990,382
2026-07-29$268.91$794.331,573,600$262.4388,018
2026-07-28$265.31$783.701,533,700$257.40109,217
2026-07-27$253.36$748.401,110,000$248.1456,351
2026-07-24$247.77$731.891,259,400$242.0056,910
2026-07-23$242.21$715.471,345,100$242.8169,361
2026-07-22$242.50$716.32974,000$247.8653,436
2026-07-21$248.22$733.221,046,900$251.0955,258
2026-07-20$253.66$749.29976,100$251.6552,192
2026-07-17$253.90$750.001,530,700
2026-07-16$255.93$755.991,443,500
2026-07-15$247.77$731.891,851,800
2026-07-14$253.83$749.791,369,100
2026-07-13$261.23$771.651,337,200
2026-07-10$253.09$747.601,033,000
2026-07-09$253.76$749.581,473,400
2026-07-08$256.61$758.001,942,500
2026-07-07$254.67$752.271,887,100
2026-07-06$249.77$737.801,868,700
2026-07-02$252.44$745.682,741,400
2026-07-01$239.67$707.963,061,500
2026-06-30$229.57$678.131,651,700
2026-06-29$227.12$670.891,542,600
2026-06-26$226.01$667.612,225,600
2026-06-25$217.86$643.541,406,100
2026-06-24$220.76$652.103,195,800
2026-06-23$215.78$637.392,312,700
2026-06-22$209.08$617.602,128,800
2026-06-18$214.06$632.312,848,400
2026-06-17$216.09$638.311,614,600
2026-06-16$215.90$637.751,372,700
2026-06-15$215.74$637.281,544,700
2026-06-12$218.69$645.991,790,800
2026-06-11$220.90$652.522,479,300
2026-06-10$220.14$650.272,026,700
2026-06-09$217.05$641.141,950,600
2026-06-08$212.52$627.761,902,100
2026-06-05$216.14$638.461,462,900
2026-06-04$211.00$621.211,694,100
2026-06-03$202.50$596.181,999,500
2026-06-02$205.77$605.811,504,400
2026-06-01$206.10$606.781,416,000
2026-05-29$201.11$592.091,788,100
2026-05-28$202.65$596.621,139,900
2026-05-27$202.85$597.211,596,900
2026-05-26$203.96$600.482,265,800
2026-05-22$204.75$602.811,240,300
2026-05-21$207.41$610.641,351,700
2026-05-20$203.61$599.451,470,500
2026-05-19$203.45$598.981,961,800
2026-05-18$207.15$609.871,614,000
2026-05-15$199.95$588.672,388,400
2026-05-14$197.68$581.993,020,100
2026-05-13$192.00$565.272,543,300
2026-05-12$197.40$581.172,051,200
2026-05-11$198.57$584.611,809,600
2026-05-08$198.87$585.491,596,700
2026-05-07$201.94$594.533,218,100
2026-05-06$196.91$579.722,243,900
2026-05-05$205.80$605.901,290,900
2026-05-04$207.03$609.521,213,500
2026-05-01$208.11$612.702,392,400
2026-04-30$206.40$607.663,093,700
2026-04-29$211.81$623.591,288,200
2026-04-28$213.42$628.331,367,600
2026-04-27$215.06$633.161,343,500
2026-04-24$215.38$634.101,228,500
2026-04-23$219.37$645.85995,300
2026-04-22$221.11$650.971,309,400
2026-04-21$224.46$660.831,550,500
2026-04-20$223.07$656.741,307,900
2026-04-17$221.61$652.441,851,000
2026-04-16$224.08$659.711,574,500
2026-04-15$223.17$657.041,221,300
2026-04-14$219.91$647.441,178,300
2026-04-13$222.50$655.062,301,800
2026-04-10$213.55$628.715,172,700
2026-04-09$218.39$642.961,637,900
2026-04-08$220.80$650.061,709,200
2026-04-07$217.57$640.551,850,400
2026-04-06$219.27$645.551,437,100
2026-04-02$217.61$640.671,730,500
2026-04-01$216.34$636.931,864,000
2026-03-31$216.58$637.632,938,600
2026-03-30$215.95$635.782,000,900
2026-03-27$207.10$609.722,103,700
2026-03-26$210.27$619.061,939,300
2026-03-25$213.56$628.741,592,700
2026-03-24$216.28$636.752,508,300
2026-03-23$216.74$638.112,136,000
2026-03-20$214.82$632.453,845,300
2026-03-19$209.68$617.322,049,900
2026-03-18$209.48$616.731,671,800
2026-03-17$209.16$615.792,195,100
2026-03-16$211.85$623.711,516,500
2026-03-13$207.93$612.172,477,800
2026-03-12$204.21$601.223,725,000
2026-03-11$209.84$617.791,922,900
2026-03-10$211.72$623.331,880,400
2026-03-09$217.78$641.171,977,700
2026-03-06$228.13$671.642,191,800
2026-03-05$229.65$674.052,057,200
2026-03-04$225.58$662.113,109,600
2026-03-03$225.23$661.082,289,400
2026-03-02$229.27$672.941,942,000
2026-02-27$228.20$669.802,959,700
2026-02-26$225.22$661.052,313,200
2026-02-25$218.13$640.242,263,200
2026-02-24$215.98$633.932,985,000
2026-02-23$214.33$629.092,375,100
2026-02-20$216.51$635.492,064,000
2026-02-19$218.37$640.942,708,900
2026-02-18$214.49$629.562,387,700
2026-02-17$214.00$628.124,648,200
2026-02-13$208.45$611.834,973,200
2026-02-12$204.79$601.096,242,600
2026-02-11$205.31$602.614,421,900
2026-02-10$212.58$623.955,002,300
2026-02-09$217.79$639.243,456,400
2026-02-06$241.58$709.071,387,400
2026-02-05$242.75$712.501,647,400
2026-02-04$249.55$732.463,285,900
2026-02-03$247.73$727.122,189,600
2026-02-02$245.27$719.901,890,300
2026-01-30$249.37$731.932,537,700
2026-01-29$245.84$721.572,250,600
2026-01-28$242.37$711.391,728,200
2026-01-27$242.33$711.273,488,100
2026-01-26$255.41$749.661,592,800
2026-01-23$253.21$743.201,504,800
2026-01-22$250.38$734.902,703,800
2026-01-21$250.08$734.022,710,500
2026-01-20$254.88$748.112,115,500
2026-01-16$258.52$758.792,126,400
2026-01-15$256.15$751.832,452,100
2026-01-14$256.98$754.272,608,000
2026-01-13$257.00$754.332,950,900
2026-01-12$264.84$777.341,815,100
2026-01-09$264.59$776.611,012,200
2026-01-08$264.54$776.461,408,000
2026-01-07$259.00$760.201,928,300
2026-01-06$262.77$771.261,347,700
2026-01-05$263.24$772.641,543,500
2026-01-02$256.00$751.391,252,700