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 — 1985

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1985-12-31$6.03$6.0332,000
1985-12-30$6.03$6.0397,600
1985-12-27$5.97$5.9732,000
1985-12-26$5.97$5.9715,200
1985-12-24$6.06$6.06800
1985-12-23$6.06$6.0625,600
1985-12-20$6.03$6.0330,400
1985-12-19$6.09$6.09800
1985-12-18$6.00$6.006,400
1985-12-17$6.00$6.0012,000
1985-12-16$6.13$6.1378,400
1985-12-13$6.03$6.030
1985-12-12$6.03$6.037,200
1985-12-11$6.03$6.035,600
1985-12-10$6.03$6.031,600
1985-12-09$6.03$6.03104,800
1985-12-06$5.95$5.9580,800
1985-12-05$6.03$6.0324,000
1985-12-04$6.03$6.037,200
1985-12-03$6.00$6.009,600
1985-12-02$6.00$6.008,000
1985-11-29$5.91$5.9148,000
1985-11-27$5.94$5.944,800
1985-11-26$5.91$5.911,600
1985-11-25$5.91$5.91135,200
1985-11-22$5.81$5.81898,400
1985-11-21$5.81$5.81572,000
1985-11-20$5.88$5.8867,200
1985-11-19$5.94$5.94217,600
1985-11-18$5.97$5.9740,800
1985-11-15$6.03$6.0368,800
1985-11-14$6.09$6.0918,400
1985-11-13$6.13$6.1316,000
1985-11-12$6.13$6.13196,000
1985-11-11$6.06$6.0668,800
1985-11-08$5.78$5.7812,000
1985-11-07$5.75$5.7528,800
1985-11-06$5.56$5.56284,800
1985-11-05$5.25$5.2579,200
1985-11-04$5.22$5.2244,800
1985-11-01$5.25$5.25260,000
1985-10-31$5.19$5.1999,200
1985-10-30$5.28$5.28279,200
1985-10-29$5.22$5.2284,800
1985-10-28$5.28$5.2834,400
1985-10-25$5.31$5.3140,800
1985-10-24$5.31$5.31240,800
1985-10-23$5.31$5.31205,600
1985-10-22$5.31$5.31143,200
1985-10-21$5.19$5.1956,000
1985-10-18$5.19$5.1932,000
1985-10-17$5.16$5.16389,600
1985-10-16$4.97$4.97179,200
1985-10-15$4.64$4.64190,400
1985-10-14$4.44$4.4456,000
1985-10-11$4.44$4.4424,000
1985-10-10$4.38$4.388,800
1985-10-09$4.38$4.385,600
1985-10-08$4.31$4.31800
1985-10-07$4.31$4.314,800
1985-10-04$4.34$4.340
1985-10-03$4.34$4.34196,000
1985-10-02$4.31$4.3152,800
1985-10-01$4.33$4.3336,800
1985-09-30$4.31$4.31400,000
1985-09-26$4.30$4.30164,000
1985-09-25$4.38$4.38682,400
1985-09-24$4.41$4.41171,200
1985-09-23$4.47$4.478,800
1985-09-20$4.47$4.47245,600
1985-09-19$4.47$4.47800
1985-09-18$4.53$4.5312,000
1985-09-17$4.56$4.568,000
1985-09-16$4.59$4.5924,800
1985-09-13$4.63$4.63213,600
1985-09-12$4.78$4.781,600
1985-09-11$4.73$4.7332,800
1985-09-10$4.75$4.7535,200
1985-09-09$4.66$4.6648,800
1985-09-06$4.81$4.815,600
1985-09-05$4.78$4.7844,000
1985-09-04$4.84$4.84240,000
1985-09-03$4.88$4.874,800
1985-08-30$4.78$4.785,600
1985-08-29$4.78$4.780
1985-08-28$4.78$4.7872,000
1985-08-27$4.78$4.782,400
1985-08-26$4.78$4.7852,800
1985-08-23$4.84$4.845,600
1985-08-22$4.91$4.917,200
1985-08-21$4.91$4.9118,400
1985-08-20$4.91$4.9152,800
1985-08-19$4.91$4.919,600
1985-08-16$4.88$4.87205,600
1985-08-15$4.89$4.89616,000
1985-08-14$4.91$4.91800
1985-08-13$4.84$4.8417,600
1985-08-12$4.84$4.841,600
1985-08-09$4.91$4.91800
1985-08-08$4.84$4.848,000
1985-08-07$4.84$4.848,800
1985-08-06$4.88$4.8787,200
1985-08-05$4.84$4.844,000
1985-08-02$4.84$4.8420,000
1985-08-01$4.88$4.8711,200
1985-07-31$4.88$4.8732,000
1985-07-30$4.88$4.870
1985-07-29$4.88$4.8711,200
1985-07-26$4.78$4.78305,600
1985-07-25$4.75$4.7519,200
1985-07-24$4.84$4.8443,200
1985-07-23$5.00$5.008,000
1985-07-22$4.97$4.9742,400
1985-07-19$5.09$5.0968,800
1985-07-18$5.25$5.25121,600
1985-07-17$5.22$5.22182,400
1985-07-16$5.19$5.19127,200
1985-07-15$5.16$5.164,800
1985-07-12$5.16$5.164,000
1985-07-11$5.16$5.1612,000
1985-07-10$5.16$5.16800
1985-07-09$5.19$5.19392,800
1985-07-08$5.22$5.223,200
1985-07-05$5.16$5.164,800
1985-07-03$5.22$5.2241,600
1985-07-02$5.22$5.2236,000
1985-07-01$5.13$5.1316,800
1985-06-28$5.13$5.1385,600
1985-06-27$5.16$5.1671,200
1985-06-26$5.22$5.2257,600
1985-06-25$5.25$5.2526,400
1985-06-24$5.41$5.4115,200
1985-06-21$5.50$5.5013,600
1985-06-20$5.50$5.5031,200
1985-06-19$5.50$5.5076,800
1985-06-18$5.59$5.59800
1985-06-17$5.53$5.531,600
1985-06-14$5.56$5.5655,200
1985-06-13$5.56$5.5668,000
1985-06-12$5.55$5.55179,200
1985-06-11$5.59$5.5952,800
1985-06-10$5.53$5.5332,800
1985-06-07$5.52$5.5252,800
1985-06-06$5.53$5.537,200
1985-06-05$5.59$5.594,000
1985-06-04$5.59$5.591,600
1985-06-03$5.53$5.5394,400
1985-05-31$5.47$5.470
1985-05-30$5.47$5.4721,600
1985-05-29$5.44$5.4425,600
1985-05-28$5.44$5.442,400
1985-05-24$5.41$5.418,000
1985-05-23$5.41$5.4147,200
1985-05-22$5.38$5.3829,600
1985-05-21$5.34$5.3418,400
1985-05-20$5.34$5.344,000
1985-05-17$5.34$5.341,600
1985-05-16$5.34$5.348,000
1985-05-15$5.34$5.34800
1985-05-14$5.34$5.3421,600
1985-05-13$5.34$5.34800
1985-05-10$5.34$5.3432,800
1985-05-09$5.34$5.3444,800
1985-05-08$5.22$5.2248,000
1985-05-07$5.22$5.223,200
1985-05-06$5.19$5.1920,000
1985-05-03$5.19$5.1922,400
1985-05-02$5.19$5.1936,000
1985-05-01$5.19$5.19150,400
1985-04-30$5.19$5.1932,000
1985-04-29$5.25$5.2540,000
1985-04-26$5.19$5.1981,600
1985-04-25$5.06$5.06150,400
1985-04-24$4.88$4.8758,400
1985-04-23$4.81$4.8167,200
1985-04-22$4.81$4.8119,200
1985-04-19$4.81$4.81144,000
1985-04-18$4.81$4.8132,000
1985-04-17$4.75$4.7513,600
1985-04-16$4.66$4.66108,800
1985-04-15$4.59$4.5921,600
1985-04-12$4.59$4.5940,800
1985-04-11$4.56$4.56109,600
1985-04-10$4.56$4.563,200
1985-04-09$4.56$4.56106,400
1985-04-08$4.56$4.5624,000
1985-04-04$4.56$4.5628,000
1985-04-03$4.56$4.5642,400
1985-04-02$4.56$4.5680,800
1985-04-01$4.56$4.562,400
1985-03-29$4.59$4.5960,800
1985-03-28$4.59$4.5937,600
1985-03-27$4.63$4.638,000
1985-03-26$4.63$4.6328,000
1985-03-25$4.63$4.6310,400
1985-03-22$4.69$4.6911,200
1985-03-21$4.69$4.691,600
1985-03-20$4.69$4.697,200
1985-03-19$4.72$4.7225,600
1985-03-18$4.72$4.724,800
1985-03-15$4.72$4.7284,800
1985-03-14$4.72$4.7225,600
1985-03-13$4.72$4.7211,200
1985-03-12$4.75$4.7547,200
1985-03-11$4.72$4.7255,200
1985-03-08$4.63$4.634,800
1985-03-07$4.63$4.635,600
1985-03-06$4.63$4.638,800
1985-03-05$4.63$4.6380,800
1985-03-04$4.63$4.632,400
1985-03-01$4.63$4.6344,000
1985-02-28$4.59$4.5997,600
1985-02-27$4.59$4.59181,600
1985-02-26$4.59$4.59580,800
1985-02-25$4.56$4.56114,400
1985-02-22$4.63$4.63216,800
1985-02-21$4.63$4.638,000
1985-02-20$4.66$4.662,400
1985-02-19$4.66$4.661,600
1985-02-15$4.66$4.6616,000
1985-02-14$4.66$4.6611,200
1985-02-13$4.63$4.63245,600
1985-02-12$4.63$4.63128,000
1985-02-11$4.63$4.63800
1985-02-08$4.63$4.6364,800
1985-02-07$4.63$4.6324,800
1985-02-06$4.66$4.6680,000
1985-02-05$4.81$4.8182,400
1985-02-04$4.81$4.81380,800
1985-02-01$4.44$4.4480,800
1985-01-31$4.19$4.19164,000
1985-01-30$4.06$4.06127,200
1985-01-29$3.88$3.8791,200
1985-01-28$3.88$3.87104,800
1985-01-25$3.81$3.8110,400
1985-01-24$3.81$3.8144,000
1985-01-23$3.81$3.8192,000
1985-01-22$3.81$3.8164,000
1985-01-21$3.78$3.78226,400
1985-01-18$3.75$3.7558,400
1985-01-17$3.72$3.7265,600
1985-01-16$3.72$3.72101,600
1985-01-15$3.72$3.7232,800
1985-01-14$3.72$3.7290,400
1985-01-11$3.72$3.7223,200
1985-01-10$3.69$3.6973,600
1985-01-09$3.72$3.7268,000
1985-01-08$3.75$3.7595,200
1985-01-07$3.75$3.75124,000
1985-01-04$3.75$3.7541,600
1985-01-03$3.75$3.75177,600
1985-01-02$3.72$3.724,800