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 — 1987

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1987-12-31$4.34$4.3436,800
1987-12-30$4.34$4.3430,400
1987-12-29$4.34$4.3443,600
1987-12-28$4.34$4.344,400
1987-12-24$4.38$4.384,400
1987-12-23$4.41$4.4129,200
1987-12-22$4.31$4.3124,400
1987-12-21$4.34$4.3454,000
1987-12-18$4.25$4.256,800
1987-12-17$4.22$4.2223,200
1987-12-16$4.22$4.2220,000
1987-12-15$4.22$4.221,364,000
1987-12-14$4.13$4.124,800
1987-12-11$4.13$4.1283,600
1987-12-10$4.03$4.036,800
1987-12-09$4.03$4.0344,000
1987-12-08$4.06$4.0671,200
1987-12-07$4.06$4.0612,800
1987-12-04$4.09$4.0930,800
1987-12-03$4.09$4.0948,000
1987-12-02$4.13$4.1211,200
1987-12-01$4.13$4.1239,200
1987-11-30$4.13$4.12124,400
1987-11-27$4.00$4.0016,800
1987-11-25$4.00$4.0026,800
1987-11-24$4.06$4.0634,000
1987-11-23$3.94$3.9456,000
1987-11-20$3.84$3.84176,000
1987-11-19$3.94$3.9464,400
1987-11-18$4.22$4.229,600
1987-11-17$4.19$4.1998,400
1987-11-16$4.34$4.3493,200
1987-11-13$4.31$4.318,800
1987-11-12$4.25$4.2533,200
1987-11-11$4.13$4.128,000
1987-11-10$4.25$4.25203,200
1987-11-09$4.31$4.31400
1987-11-06$4.19$4.1915,600
1987-11-05$4.19$4.1910,000
1987-11-04$4.19$4.19116,800
1987-11-03$4.31$4.3166,000
1987-11-02$4.38$4.3826,400
1987-10-30$4.38$4.3824,400
1987-10-29$4.13$4.12291,200
1987-10-28$4.25$4.2534,800
1987-10-27$4.25$4.2526,400
1987-10-26$4.19$4.1986,000
1987-10-23$4.38$4.3814,400
1987-10-22$4.47$4.47130,400
1987-10-21$4.44$4.44133,600
1987-10-20$4.25$4.2513,200
1987-10-19$4.63$4.63224,400
1987-10-16$4.94$4.94108,000
1987-10-15$4.81$4.812,000
1987-10-14$4.81$4.815,600
1987-10-13$5.00$5.0029,200
1987-10-12$4.81$4.8149,200
1987-10-09$4.81$4.8143,600
1987-10-08$4.91$4.91556,000
1987-10-07$4.94$4.94326,800
1987-10-06$5.06$5.0627,600
1987-10-05$5.06$5.06906,400
1987-10-02$5.13$5.1333,600
1987-10-01$5.13$5.133,200
1987-09-30$5.25$5.2516,000
1987-09-29$5.13$5.1343,200
1987-09-28$5.25$5.259,200
1987-09-25$5.13$5.130
1987-09-24$5.13$5.13118,000
1987-09-23$5.13$5.138,800
1987-09-22$5.31$5.3123,200
1987-09-21$5.25$5.2511,600
1987-09-18$5.19$5.198,000
1987-09-17$5.31$5.3110,400
1987-09-16$5.19$5.1920,400
1987-09-15$5.19$5.1910,000
1987-09-14$5.31$5.3110,800
1987-09-11$5.31$5.3111,600
1987-09-10$5.19$5.194,400
1987-09-09$5.31$5.317,200
1987-09-08$5.19$5.1940,000
1987-09-04$5.19$5.1922,800
1987-09-03$5.25$5.2512,000
1987-09-02$5.25$5.2526,400
1987-09-01$5.25$5.2516,400
1987-08-31$5.34$5.3422,800
1987-08-28$5.25$5.25240,000
1987-08-27$5.25$5.25197,600
1987-08-26$5.28$5.2820,000
1987-08-25$5.31$5.3142,800
1987-08-24$5.25$5.2531,200
1987-08-21$5.25$5.25123,200
1987-08-20$5.19$5.195,600
1987-08-19$5.31$5.3142,400
1987-08-18$5.25$5.2517,200
1987-08-17$5.25$5.252,800
1987-08-14$5.19$5.1913,200
1987-08-13$5.25$5.25320,800
1987-08-12$5.19$5.1910,800
1987-08-11$5.19$5.1963,600
1987-08-10$5.25$5.2510,000
1987-08-07$5.19$5.19119,200
1987-08-06$5.25$5.255,600
1987-08-05$5.19$5.195,200
1987-08-04$5.25$5.2534,000
1987-08-03$5.25$5.253,200
1987-07-31$5.31$5.3151,600
1987-07-30$5.31$5.3135,200
1987-07-29$5.25$5.259,200
1987-07-28$5.25$5.256,800
1987-07-27$5.25$5.25237,600
1987-07-24$5.25$5.257,200
1987-07-23$5.13$5.13205,200
1987-07-22$5.13$5.13535,600
1987-07-21$5.13$5.13127,200
1987-07-20$5.31$5.314,400
1987-07-17$5.31$5.31520,000
1987-07-16$5.06$5.06185,200
1987-07-15$4.94$4.9422,400
1987-07-14$4.94$4.9470,400
1987-07-13$5.06$5.0625,200
1987-07-10$5.00$5.00128,800
1987-07-09$5.00$5.0043,600
1987-07-08$5.03$5.0321,600
1987-07-07$5.00$5.0013,600
1987-07-06$5.13$5.131,600
1987-07-02$5.00$5.004,000
1987-07-01$5.00$5.00110,400
1987-06-30$5.16$5.1617,600
1987-06-29$5.19$5.19800
1987-06-26$5.06$5.063,600
1987-06-25$5.25$5.250
1987-06-24$5.25$5.25800
1987-06-23$5.13$5.1318,800
1987-06-22$5.19$5.1925,600
1987-06-19$5.31$5.314,400
1987-06-18$5.31$5.31329,200
1987-06-17$5.25$5.25113,600
1987-06-16$5.31$5.3157,600
1987-06-15$5.31$5.315,200
1987-06-12$5.31$5.3112,800
1987-06-11$5.25$5.2511,600
1987-06-10$5.25$5.2555,200
1987-06-09$5.25$5.259,600
1987-06-08$5.31$5.31578,800
1987-06-05$5.19$5.19284,400
1987-06-04$5.13$5.13341,600
1987-06-03$5.13$5.13100,000
1987-06-02$5.25$5.2514,800
1987-06-01$5.25$5.2518,800
1987-05-29$5.25$5.257,200
1987-05-28$5.06$5.060
1987-05-27$5.06$5.06498,400
1987-05-26$5.25$5.2598,800
1987-05-22$5.00$5.008,800
1987-05-21$5.19$5.194,000
1987-05-20$5.00$5.0018,800
1987-05-19$5.00$5.004,800
1987-05-18$5.06$5.06534,800
1987-05-15$5.00$5.0054,000
1987-05-14$5.19$5.1942,000
1987-05-13$5.13$5.1313,600
1987-05-12$5.13$5.13303,600
1987-05-11$4.75$4.75784,000
1987-05-08$4.88$4.87187,200
1987-05-07$4.81$4.8126,400
1987-05-06$4.81$4.81926,000
1987-05-05$4.88$4.87142,400
1987-05-04$4.94$4.9413,600
1987-05-01$4.94$4.9428,800
1987-04-30$4.94$4.9470,800
1987-04-29$4.94$4.94169,200
1987-04-28$4.91$4.91180,800
1987-04-27$4.88$4.87248,800
1987-04-24$4.88$4.8746,800
1987-04-23$5.13$5.1325,200
1987-04-22$5.19$5.1923,200
1987-04-21$5.19$5.19112,000
1987-04-20$5.38$5.38125,600
1987-04-16$5.63$5.62168,000
1987-04-15$5.63$5.62116,800
1987-04-14$5.44$5.44128,400
1987-04-13$5.75$5.7546,800
1987-04-10$5.81$5.8121,200
1987-04-09$5.81$5.8172,400
1987-04-08$5.75$5.75474,000
1987-04-07$5.81$5.8114,000
1987-04-06$6.00$6.00104,400
1987-04-03$5.75$5.752,186,400
1987-04-02$5.88$5.8824,800
1987-04-01$6.06$6.0644,800
1987-03-31$6.06$6.0644,800
1987-03-30$6.00$6.0028,000
1987-03-27$6.13$6.1351,600
1987-03-26$6.06$6.06367,600
1987-03-25$6.09$6.09257,200
1987-03-24$6.25$6.2567,200
1987-03-23$6.25$6.25582,400
1987-03-20$6.25$6.25109,200
1987-03-19$6.44$6.443,215,600
1987-03-18$7.19$7.19336,000
1987-03-17$7.13$7.12230,000
1987-03-16$7.03$7.0382,000
1987-03-13$7.00$7.00116,000
1987-03-12$7.00$7.0084,400
1987-03-11$7.00$7.0025,200
1987-03-10$7.06$7.061,486,800
1987-03-09$7.06$7.068,400
1987-03-06$6.94$6.9448,400
1987-03-05$6.94$6.94234,400
1987-03-04$6.94$6.94703,600
1987-03-03$6.94$6.94112,000
1987-03-02$7.00$7.00176,800
1987-02-27$7.00$7.00148,400
1987-02-26$7.25$7.25147,600
1987-02-25$7.13$7.126,800
1987-02-24$7.19$7.19128,800
1987-02-23$7.13$7.1292,800
1987-02-20$7.06$7.0695,600
1987-02-19$7.00$7.0081,600
1987-02-18$6.94$6.9486,000
1987-02-17$6.94$6.9484,800
1987-02-13$6.88$6.8741,600
1987-02-12$6.69$6.6919,200
1987-02-11$6.81$6.81134,400
1987-02-10$6.63$6.6354,000
1987-02-09$6.63$6.63131,200
1987-02-06$6.38$6.38229,600
1987-02-05$6.44$6.44150,400
1987-02-04$6.31$6.31295,200
1987-02-03$6.50$6.50208,400
1987-02-02$6.75$6.7563,200
1987-01-30$6.75$6.75110,000
1987-01-29$6.50$6.50373,200
1987-01-28$6.72$6.72659,200
1987-01-27$6.81$6.81217,600
1987-01-26$6.88$6.87129,200
1987-01-23$7.25$7.25241,200
1987-01-22$7.63$7.6360,400
1987-01-21$7.56$7.5636,000
1987-01-20$7.56$7.56210,400
1987-01-19$7.56$7.5667,200
1987-01-16$7.44$7.4438,400
1987-01-15$7.63$7.63210,800
1987-01-14$7.75$7.75100,000
1987-01-13$7.38$7.38124,800
1987-01-12$7.38$7.3816,000
1987-01-09$7.44$7.4479,200
1987-01-08$7.19$7.1958,800
1987-01-07$7.00$7.0057,600
1987-01-06$6.88$6.87236,400
1987-01-05$6.59$6.5929,200
1987-01-02$6.56$6.56128,000