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 — 2018

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2018-12-31$73.70$197.74680,800——
2018-12-28$72.52$194.57669,900——
2018-12-27$72.29$193.96772,400——
2018-12-26$71.31$191.33778,900——
2018-12-24$68.99$185.10649,300——
2018-12-21$71.06$190.662,428,900——
2018-12-20$72.90$195.592,045,900——
2018-12-19$73.32$196.721,840,600——
2018-12-18$72.85$195.461,395,000——
2018-12-17$72.41$194.28997,200——
2018-12-14$74.18$199.03955,000——
2018-12-13$75.35$202.171,388,600——
2018-12-12$75.45$202.44815,500——
2018-12-11$74.92$201.011,132,300——
2018-12-10$74.54$199.991,069,200——
2018-12-07$74.52$199.94955,200——
2018-12-06$75.06$201.391,738,100——
2018-12-04$76.11$203.111,402,800——
2018-12-03$77.96$208.042,063,600——
2018-11-30$77.07$205.674,205,800——
2018-11-29$78.03$208.23961,600——
2018-11-28$78.09$208.391,163,600——
2018-11-27$76.93$205.291,021,100——
2018-11-26$76.86$205.111,087,400——
2018-11-23$76.67$204.60421,400——
2018-11-21$76.46$204.04998,000——
2018-11-20$77.15$205.881,026,600——
2018-11-19$78.32$209.001,196,500——
2018-11-16$78.38$209.161,103,300——
2018-11-15$77.37$206.471,086,900——
2018-11-14$76.42$203.931,145,900——
2018-11-13$77.50$206.821,247,100——
2018-11-12$77.66$207.241,077,600——
2018-11-09$78.05$208.28963,300——
2018-11-08$77.77$207.54872,500——
2018-11-07$76.96$205.37940,200——
2018-11-06$75.84$202.391,039,200——
2018-11-05$75.51$201.51988,600——
2018-11-02$74.67$199.261,275,900——
2018-11-01$74.60$199.081,302,100——
2018-10-31$74.01$197.501,334,400——
2018-10-30$74.31$198.301,114,200——
2018-10-29$73.85$197.081,532,300——
2018-10-26$74.03$197.561,571,400——
2018-10-25$72.97$194.731,054,700——
2018-10-24$71.35$190.401,089,800——
2018-10-23$72.35$193.071,481,500——
2018-10-22$72.72$194.06577,300——
2018-10-19$72.67$193.931,212,900——
2018-10-18$71.66$191.23879,300——
2018-10-17$72.11$192.43709,400——
2018-10-16$71.88$191.82935,700——
2018-10-15$70.79$188.91885,900——
2018-10-12$71.25$190.141,019,200——
2018-10-11$71.29$190.241,012,400——
2018-10-10$73.28$195.55709,800——
2018-10-09$75.41$201.24543,400——
2018-10-08$75.48$201.43461,300——
2018-10-05$74.85$199.74759,300——
2018-10-04$75.71$202.04638,600——
2018-10-03$75.11$200.44580,900——
2018-10-02$75.35$201.08639,000——
2018-10-01$75.17$200.60542,800——
2018-09-28$74.44$198.65681,600——
2018-09-27$74.45$198.68561,500——
2018-09-26$74.02$197.53472,700——
2018-09-25$74.55$198.94554,500——
2018-09-24$75.15$200.54692,700——
2018-09-21$75.91$202.571,370,900——
2018-09-20$76.13$203.16790,900——
2018-09-19$75.73$202.091,147,800——
2018-09-18$75.03$200.22766,300——
2018-09-17$75.12$200.46914,900——
2018-09-14$74.89$199.85567,300——
2018-09-13$74.62$199.13832,600——
2018-09-12$73.55$196.28472,900——
2018-09-11$74.13$197.82634,100——
2018-09-10$74.19$197.98722,600——
2018-09-07$73.76$196.84623,400——
2018-09-06$73.86$197.10570,900——
2018-09-05$73.53$195.13862,400——
2018-09-04$72.99$193.69747,200——
2018-08-31$72.14$191.44656,300——
2018-08-30$71.67$190.19681,700——
2018-08-29$72.28$191.81418,300——
2018-08-28$72.14$191.44444,100——
2018-08-27$72.30$191.86470,600——
2018-08-24$72.15$191.47381,600——
2018-08-23$71.75$190.40418,200——
2018-08-22$71.67$190.19516,600——
2018-08-21$72.36$192.02554,000——
2018-08-20$71.97$190.99590,500——
2018-08-17$72.21$191.62795,300——
2018-08-16$71.91$190.83767,800——
2018-08-15$71.12$188.73702,200——
2018-08-14$70.66$187.51518,600——
2018-08-13$70.43$186.90714,100——
2018-08-10$70.87$188.07645,600——
2018-08-09$71.36$189.37537,300——
2018-08-08$71.65$190.14671,300——
2018-08-07$71.59$189.98732,700——
2018-08-06$71.54$189.85651,500——
2018-08-03$71.46$189.63534,300——
2018-08-02$71.15$188.81923,300——
2018-08-01$71.34$189.32912,200——
2018-07-31$71.35$189.341,493,100——
2018-07-30$71.14$188.79935,500——
2018-07-27$70.89$188.121,329,500——
2018-07-26$71.20$188.941,401,800——
2018-07-25$71.16$188.84901,200——
2018-07-24$70.51$187.11863,200——
2018-07-23$70.79$187.86918,300——
2018-07-20$70.39$186.79875,600——
2018-07-19$70.30$186.56932,400——
2018-07-18$70.50$187.09887,300——
2018-07-17$69.69$184.94585,800——
2018-07-16$69.46$184.33810,800——
2018-07-13$68.86$182.73564,300——
2018-07-12$68.66$182.20754,800——
2018-07-11$68.19$180.96783,800——
2018-07-10$68.04$180.56664,500——
2018-07-09$68.17$180.90721,400——
2018-07-06$66.81$177.29878,700——
2018-07-05$66.09$175.38754,200——
2018-07-03$65.53$173.90457,000——
2018-07-02$65.26$173.181,026,200——
2018-06-29$65.28$173.231,891,400——
2018-06-28$65.12$172.81712,600——
2018-06-27$64.77$171.88685,600——
2018-06-26$66.03$175.22632,500——
2018-06-25$66.38$176.15960,000——
2018-06-22$66.74$177.112,609,600——
2018-06-21$65.52$173.871,342,200——
2018-06-20$65.55$173.95936,400——
2018-06-19$66.02$175.20903,400——
2018-06-18$66.39$176.181,001,400——
2018-06-15$65.81$174.641,618,300——
2018-06-14$65.98$175.09741,300——
2018-06-13$66.16$175.57942,800——
2018-06-12$66.37$176.13711,500——
2018-06-11$67.24$178.44833,700——
2018-06-08$67.78$179.87527,300——
2018-06-07$67.24$178.44552,100——
2018-06-06$66.91$177.56721,200——
2018-06-05$66.40$176.21534,600——
2018-06-04$66.47$176.39699,300——
2018-06-01$66.23$175.761,136,400——
2018-05-31$66.28$175.891,418,200——
2018-05-30$66.98$176.661,226,900——
2018-05-29$65.80$173.551,039,000——
2018-05-25$67.62$178.35726,800——
2018-05-24$68.15$179.74866,400——
2018-05-23$68.01$179.37582,200——
2018-05-22$68.14$179.72532,900——
2018-05-21$68.11$179.64613,500——
2018-05-18$67.53$178.111,179,100——
2018-05-17$66.94$176.55998,600——
2018-05-16$66.62$175.71745,000——
2018-05-15$66.86$176.34793,900——
2018-05-14$67.55$178.16825,600——
2018-05-11$68.74$181.30766,000——
2018-05-10$69.26$182.671,026,300——
2018-05-09$68.66$181.09696,400——
2018-05-08$68.71$181.22921,000——
2018-05-07$69.02$182.04723,700——
2018-05-04$68.94$181.83815,200——
2018-05-03$68.56$180.821,374,100——
2018-05-02$68.64$181.042,198,000——
2018-05-01$69.91$184.391,095,800——
2018-04-30$69.99$184.60841,600——
2018-04-27$70.62$186.26540,800——
2018-04-26$70.23$185.23989,500——
2018-04-25$69.38$182.99856,300——
2018-04-24$69.56$183.46703,600——
2018-04-23$70.27$185.33725,100——
2018-04-20$69.97$184.54932,400——
2018-04-19$70.10$184.89870,200——
2018-04-18$69.82$184.15865,400——
2018-04-17$69.65$183.701,052,000——
2018-04-16$69.28$182.72561,800——
2018-04-13$68.45$180.53847,100——
2018-04-12$68.56$180.82683,000——
2018-04-11$68.05$179.48665,200——
2018-04-10$68.37$180.321,109,300——
2018-04-09$67.43$177.84746,300——
2018-04-06$67.09$176.95934,100——
2018-04-05$68.43$180.48786,900——
2018-04-04$68.40$180.401,201,400——
2018-04-03$67.85$178.951,221,900——
2018-04-02$67.10$176.971,277,400——
2018-03-29$68.73$181.271,265,500——
2018-03-28$68.20$179.88944,300——
2018-03-27$67.53$178.11830,900——
2018-03-26$68.23$179.951,986,800——
2018-03-23$66.69$175.891,294,700——
2018-03-22$68.57$180.85971,800——
2018-03-21$70.27$185.33753,100——
2018-03-20$70.85$186.86750,300——
2018-03-19$70.52$185.991,287,200——
2018-03-16$71.01$187.292,564,200——
2018-03-15$70.74$186.57826,200——
2018-03-14$70.74$186.57848,100——
2018-03-13$71.27$187.97931,000——
2018-03-12$71.71$189.131,064,000——
2018-03-09$72.63$191.561,676,300——
2018-03-08$70.05$184.75770,300——
2018-03-07$69.55$183.44708,000——
2018-03-06$69.61$183.59836,100——
2018-03-05$69.66$183.731,187,700——
2018-03-02$68.66$181.09808,400——
2018-03-01$68.37$180.321,415,200——
2018-02-28$69.11$181.19947,700——
2018-02-27$69.98$183.481,656,100——
2018-02-26$69.76$182.90928,000——
2018-02-23$68.99$180.88880,000——
2018-02-22$68.13$178.621,384,100——
2018-02-21$68.91$180.671,174,000——
2018-02-20$69.31$181.721,051,300——
2018-02-16$68.97$180.831,111,300——
2018-02-15$69.05$181.04912,400——
2018-02-14$68.20$178.81776,700——
2018-02-13$66.98$175.61988,700——
2018-02-12$66.21$173.591,267,000——
2018-02-09$64.94$170.261,914,500——
2018-02-08$64.40$168.852,399,500——
2018-02-07$66.11$173.331,247,800——
2018-02-06$65.40$171.472,423,900——
2018-02-05$66.27$173.751,778,200——
2018-02-02$68.57$179.78849,900——
2018-02-01$69.19$181.401,106,100——
2018-01-31$68.32$179.121,363,200——
2018-01-30$69.33$181.771,293,200——
2018-01-29$69.77$182.921,544,600——
2018-01-26$70.49$184.812,859,500——
2018-01-25$65.65$172.121,123,300——
2018-01-24$65.12$170.731,533,200——
2018-01-23$64.56$169.261,406,900——
2018-01-22$64.75$169.76748,800——
2018-01-19$64.29$168.561,123,300——
2018-01-18$64.03$167.88782,200——
2018-01-17$64.05$167.93637,200——
2018-01-16$63.42$166.28970,900——
2018-01-12$63.88$167.48836,500——
2018-01-11$63.40$166.22834,500——
2018-01-10$63.57$166.67768,200——
2018-01-09$63.63$166.83648,100——
2018-01-08$63.55$166.621,004,100——
2018-01-05$63.51$166.51811,700——
2018-01-04$63.22$165.75931,600——
2018-01-03$62.64$164.23989,800——
2018-01-02$62.17$163.00790,300——