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 — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$123.71$344.30487,900——
2020-12-30$121.70$338.71426,600——
2020-12-29$121.53$338.24549,500——
2020-12-28$123.03$342.41368,500——
2020-12-24$123.42$343.50223,000——
2020-12-23$123.04$342.44480,500——
2020-12-22$123.81$344.58729,800——
2020-12-21$125.00$347.89847,300——
2020-12-18$125.32$348.791,484,500——
2020-12-17$128.19$356.771,015,100——
2020-12-16$126.45$351.93981,400——
2020-12-15$123.63$344.08928,400——
2020-12-14$120.50$335.371,112,100——
2020-12-11$119.94$333.81995,800——
2020-12-10$119.51$332.621,170,800——
2020-12-09$117.48$326.97850,200——
2020-12-08$116.90$325.35775,000——
2020-12-07$116.00$322.85762,600——
2020-12-04$116.02$322.90556,700——
2020-12-03$115.77$322.21702,900——
2020-12-02$116.43$322.79536,100——
2020-12-01$116.71$323.57672,800——
2020-11-30$115.41$319.96928,700——
2020-11-27$115.86$321.21342,400——
2020-11-25$116.07$321.791,236,600——
2020-11-24$116.42$322.761,141,700——
2020-11-23$115.41$319.96784,400——
2020-11-20$115.55$320.351,937,400——
2020-11-19$116.04$321.71648,700——
2020-11-18$115.45$320.07726,800——
2020-11-17$117.08$324.591,040,300——
2020-11-16$117.43$325.56704,600——
2020-11-13$115.71$320.79605,500——
2020-11-12$113.15$313.70569,900——
2020-11-11$114.17$316.53743,600——
2020-11-10$113.64$315.061,135,000——
2020-11-09$109.98$304.911,797,000——
2020-11-06$110.51$306.38736,000——
2020-11-05$109.77$304.33877,300——
2020-11-04$111.75$309.821,209,100——
2020-11-03$107.99$299.39845,900——
2020-11-02$106.53$295.341,092,700——
2020-10-30$103.71$287.531,528,000——
2020-10-29$103.00$285.561,484,900——
2020-10-28$104.31$289.191,996,300——
2020-10-27$105.57$292.68959,400——
2020-10-26$106.16$294.32670,900——
2020-10-23$107.92$299.20561,500——
2020-10-22$107.76$298.75418,800——
2020-10-21$107.62$298.37518,400——
2020-10-20$107.52$298.09576,700——
2020-10-19$107.06$296.81769,300——
2020-10-16$108.77$301.55575,100——
2020-10-15$108.16$299.86687,100——
2020-10-14$107.83$298.95894,500——
2020-10-13$108.67$301.281,033,600——
2020-10-12$109.51$303.61628,000——
2020-10-09$108.55$300.94448,100——
2020-10-08$107.11$296.95463,100——
2020-10-07$106.42$295.04531,600——
2020-10-06$105.76$293.21591,300——
2020-10-05$107.06$296.81558,000——
2020-10-02$106.21$294.46535,600——
2020-10-01$105.61$292.79745,000——
2020-09-30$105.58$292.711,197,900——
2020-09-29$104.77$290.46504,300——
2020-09-28$104.96$290.99629,300——
2020-09-25$102.97$285.47623,500——
2020-09-24$102.45$284.03656,100——
2020-09-23$102.36$283.781,709,400——
2020-09-22$104.29$289.131,236,200——
2020-09-21$104.11$288.631,537,700——
2020-09-18$104.21$288.911,533,000——
2020-09-17$103.71$287.531,177,100——
2020-09-16$103.04$285.67873,800——
2020-09-15$102.98$285.50658,300——
2020-09-14$102.61$284.481,010,600——
2020-09-11$101.79$282.20548,300——
2020-09-10$101.93$282.591,160,400——
2020-09-09$103.23$286.20657,200——
2020-09-08$101.08$280.23826,800——
2020-09-04$103.68$287.44731,500——
2020-09-03$104.58$289.94612,400——
2020-09-02$107.35$296.37806,900——
2020-09-01$105.69$291.79748,800——
2020-08-31$105.30$290.711,150,300——
2020-08-28$105.05$290.02674,700——
2020-08-27$106.00$292.64698,900——
2020-08-26$104.47$288.421,382,300——
2020-08-25$104.27$287.87910,300——
2020-08-24$104.02$287.181,143,200——
2020-08-21$103.47$285.661,267,500——
2020-08-20$106.37$293.66498,200——
2020-08-19$106.62$294.35554,700——
2020-08-18$107.38$296.45590,400——
2020-08-17$106.65$294.44909,400——
2020-08-14$106.99$295.38511,900——
2020-08-13$107.19$295.93470,500——
2020-08-12$106.96$295.29664,900——
2020-08-11$107.37$296.43740,800——
2020-08-10$107.44$296.62870,200——
2020-08-07$106.81$294.88654,500——
2020-08-06$105.56$291.43591,800——
2020-08-05$105.50$291.26936,600——
2020-08-04$105.44$291.10931,400——
2020-08-03$106.09$292.89861,700——
2020-07-31$107.49$296.761,009,800——
2020-07-30$104.57$288.69815,000——
2020-07-29$104.80$289.331,635,300——
2020-07-28$103.76$286.461,018,600——
2020-07-27$103.53$285.82665,300——
2020-07-24$103.93$286.93552,800——
2020-07-23$104.03$287.20622,100——
2020-07-22$104.45$288.36672,900——
2020-07-21$104.04$287.23800,500——
2020-07-20$104.13$287.48636,000——
2020-07-17$103.55$285.88857,300——
2020-07-16$102.55$283.12820,400——
2020-07-15$101.49$280.19768,100——
2020-07-14$101.07$279.03868,500——
2020-07-13$98.22$271.16730,500——
2020-07-10$99.14$273.70593,800——
2020-07-09$97.59$269.42710,600——
2020-07-08$98.37$271.58727,900——
2020-07-07$97.67$269.65684,600——
2020-07-06$96.88$267.46809,200——
2020-07-02$97.34$268.73684,700——
2020-07-01$97.35$268.76714,700——
2020-06-30$97.49$269.15633,300——
2020-06-29$95.67$264.12721,100——
2020-06-26$96.67$266.882,072,700——
2020-06-25$97.28$268.57871,000——
2020-06-24$94.78$261.671,011,100——
2020-06-23$97.52$269.23771,400——
2020-06-22$96.74$267.081,120,900——
2020-06-19$94.74$261.562,929,200——
2020-06-18$99.17$273.79890,700——
2020-06-17$98.35$271.521,207,800——
2020-06-16$95.65$264.071,285,600——
2020-06-15$95.13$262.632,044,000——
2020-06-12$95.32$263.161,968,600——
2020-06-11$94.47$260.812,108,000——
2020-06-10$100.41$277.211,168,300——
2020-06-09$101.15$279.251,229,000——
2020-06-08$101.90$281.321,349,400——
2020-06-05$100.45$277.321,379,400——
2020-06-04$98.20$271.11766,300——
2020-06-03$97.95$269.18792,500——
2020-06-02$95.50$262.44962,500——
2020-06-01$94.46$259.59946,900——
2020-05-29$94.28$259.091,389,600——
2020-05-28$94.00$258.321,131,200——
2020-05-27$93.82$257.831,007,100——
2020-05-26$92.38$253.871,229,800——
2020-05-22$91.10$250.35900,200——
2020-05-21$91.00$250.08938,900——
2020-05-20$90.69$249.221,008,900——
2020-05-19$90.22$247.931,019,300——
2020-05-18$90.30$248.151,140,100——
2020-05-15$87.23$239.722,523,000——
2020-05-14$86.49$237.681,406,000——
2020-05-13$85.83$235.871,577,900——
2020-05-12$87.03$239.171,322,400——
2020-05-11$86.86$238.70804,700——
2020-05-08$86.40$237.441,097,900——
2020-05-07$85.38$234.631,508,900——
2020-05-06$80.45$221.081,444,300——
2020-05-05$83.13$228.451,845,100——
2020-05-04$80.14$220.231,312,100——
2020-05-01$77.51$213.011,848,600——
2020-04-30$78.50$215.732,421,300——
2020-04-29$79.67$218.942,055,300——
2020-04-28$77.22$212.211,386,300——
2020-04-27$77.38$212.651,048,800——
2020-04-24$75.28$206.881,169,500——
2020-04-23$74.82$205.611,045,300——
2020-04-22$77.59$213.221,187,500——
2020-04-21$77.54$213.091,211,800——
2020-04-20$80.78$221.991,240,300——
2020-04-17$83.60$229.741,602,500——
2020-04-16$80.79$222.021,100,000——
2020-04-15$83.65$229.881,593,700——
2020-04-14$86.54$237.821,552,400——
2020-04-13$83.57$229.66983,200——
2020-04-09$86.84$238.641,374,600——
2020-04-08$85.04$233.701,187,700——
2020-04-07$82.28$226.111,753,900——
2020-04-06$82.21$225.921,483,200——
2020-04-03$76.26$209.572,491,400——
2020-04-02$78.76$216.441,651,600——
2020-04-01$77.00$211.601,603,900——
2020-03-31$81.51$224.001,693,100——
2020-03-30$83.22$228.70989,200——
2020-03-27$80.17$220.311,122,100——
2020-03-26$80.78$221.991,634,300——
2020-03-25$77.21$212.182,309,300——
2020-03-24$77.27$212.351,364,300——
2020-03-23$68.24$187.531,672,400——
2020-03-20$71.58$196.712,402,000——
2020-03-19$68.55$188.382,039,700——
2020-03-18$72.44$199.071,722,400——
2020-03-17$85.46$234.851,999,100——
2020-03-16$79.85$219.441,607,000——
2020-03-13$90.06$247.491,826,200——
2020-03-12$86.17$236.801,636,600——
2020-03-11$94.98$261.011,474,800——
2020-03-10$97.56$268.101,762,800——
2020-03-09$94.14$258.711,554,600——
2020-03-06$100.84$277.12860,700——
2020-03-05$102.11$280.611,070,200——
2020-03-04$106.21$290.641,324,200——
2020-03-03$100.69$275.531,063,300——
2020-03-02$103.51$283.251,815,500——
2020-02-28$97.49$266.782,218,700——
2020-02-27$99.08$271.131,357,500——
2020-02-26$103.84$284.152,081,000——
2020-02-25$103.87$284.241,006,000——
2020-02-24$106.21$290.64799,200——
2020-02-21$107.83$295.07800,500——
2020-02-20$108.17$296.00689,400——
2020-02-19$108.78$297.67565,500——
2020-02-18$108.51$296.93612,400——
2020-02-14$109.16$298.71606,400——
2020-02-13$108.20$296.08424,500——
2020-02-12$106.65$291.84640,700——
2020-02-11$107.40$293.90680,400——
2020-02-10$106.78$292.20591,500——
2020-02-07$104.93$287.14578,100——
2020-02-06$105.12$287.66773,800——
2020-02-05$105.08$287.55696,200——
2020-02-04$104.70$286.51915,100——
2020-02-03$104.26$285.301,035,700——
2020-01-31$102.57$280.681,874,400——
2020-01-30$100.20$274.19942,300——
2020-01-29$98.82$270.42506,400——
2020-01-28$98.37$269.18822,100——
2020-01-27$96.19$263.22700,400——
2020-01-24$96.86$265.05479,500——
2020-01-23$96.99$265.41782,800——
2020-01-22$96.27$263.44568,300——
2020-01-21$96.19$263.22495,700——
2020-01-17$96.45$263.93629,100——
2020-01-16$96.05$262.84633,300——
2020-01-15$95.81$262.18618,400——
2020-01-14$95.09$260.21673,800——
2020-01-13$95.37$260.98556,900——
2020-01-10$95.44$261.17675,200——
2020-01-09$95.78$262.10635,500——
2020-01-08$94.85$259.55795,700——
2020-01-07$94.72$259.20627,500——
2020-01-06$95.75$262.021,024,700——
2020-01-03$95.31$260.81678,200——
2020-01-02$95.51$261.36724,500——