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 — 1998

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1998-12-31$11.03$14.8056,000
1998-12-30$10.94$14.67114,800
1998-12-29$10.92$14.65119,600
1998-12-28$11.19$14.8963,600
1998-12-24$10.80$14.3712,000
1998-12-23$10.91$14.52108,000
1998-12-22$10.84$14.4369,600
1998-12-21$10.92$14.5457,200
1998-12-18$10.98$14.62150,400
1998-12-17$11.05$14.7034,000
1998-12-16$10.66$14.1852,000
1998-12-15$10.94$14.5642,800
1998-12-14$11.14$14.8348,800
1998-12-11$11.47$15.2699,200
1998-12-10$11.28$15.02268,800
1998-12-09$11.25$14.97253,600
1998-12-08$11.16$14.8539,200
1998-12-07$11.23$14.9558,800
1998-12-04$11.27$14.99239,200
1998-12-03$11.06$14.7260,000
1998-12-02$11.22$14.9365,200
1998-12-01$11.34$15.10115,600
1998-11-30$11.59$15.43102,400
1998-11-27$11.53$15.3513,200
1998-11-25$11.47$15.2671,200
1998-11-24$11.33$15.0896,000
1998-11-23$11.19$14.8996,000
1998-11-20$11.45$15.24114,800
1998-11-19$11.41$15.18200,800
1998-11-18$11.47$15.2673,200
1998-11-17$11.25$14.97198,800
1998-11-16$11.23$14.9584,400
1998-11-13$11.44$15.22116,400
1998-11-12$11.36$15.12124,400
1998-11-11$11.30$15.0455,200
1998-11-10$11.28$15.02140,800
1998-11-09$11.23$14.95202,800
1998-11-06$10.83$14.4150,800
1998-11-05$10.86$14.45175,600
1998-11-04$10.88$14.47201,600
1998-11-03$10.69$14.23127,600
1998-11-02$10.64$14.1674,800
1998-10-30$10.59$14.1071,600
1998-10-29$10.56$14.0648,400
1998-10-28$10.64$14.1629,600
1998-10-27$10.61$14.1247,600
1998-10-26$10.55$14.0495,600
1998-10-23$10.63$14.14177,600
1998-10-22$10.73$14.29275,600
1998-10-21$10.08$13.411,862,000
1998-10-20$9.86$13.1269,600
1998-10-19$9.72$12.94103,600
1998-10-16$9.94$13.2395,600
1998-10-15$10.00$13.31293,600
1998-10-14$9.11$12.12286,000
1998-10-13$9.34$12.44110,800
1998-10-12$9.34$12.44242,400
1998-10-09$9.39$12.5089,600
1998-10-08$9.52$12.6798,800
1998-10-07$9.61$12.7942,400
1998-10-06$9.55$12.7192,400
1998-10-05$9.84$13.10208,800
1998-10-02$10.02$13.3360,800
1998-10-01$9.98$13.29116,000
1998-09-30$10.31$13.73184,800
1998-09-29$10.09$13.43292,000
1998-09-28$10.44$13.8977,600
1998-09-25$10.53$13.90185,600
1998-09-24$10.50$13.86157,600
1998-09-23$10.77$14.21145,600
1998-09-22$10.34$13.6564,000
1998-09-21$10.09$13.32126,400
1998-09-18$10.06$13.282,711,200
1998-09-17$9.84$12.9974,800
1998-09-16$9.98$13.18101,600
1998-09-15$9.92$13.10150,400
1998-09-14$10.00$13.2088,800
1998-09-11$9.98$13.18210,800
1998-09-10$9.64$12.73201,200
1998-09-09$9.73$12.85134,000
1998-09-08$9.94$13.12280,000
1998-09-04$9.61$12.68174,400
1998-09-03$9.58$12.64418,800
1998-09-02$9.70$12.81107,600
1998-09-01$9.55$12.60201,600
1998-08-31$9.25$12.21109,200
1998-08-28$9.30$12.27280,400
1998-08-27$9.28$12.2598,800
1998-08-26$9.59$12.6660,400
1998-08-25$9.89$13.06166,800
1998-08-24$9.58$12.6437,200
1998-08-21$9.52$12.5673,600
1998-08-20$9.34$12.3316,400
1998-08-19$9.34$12.33130,400
1998-08-18$9.88$13.0367,600
1998-08-17$9.77$12.8946,800
1998-08-14$9.55$12.6064,000
1998-08-13$9.59$12.66144,400
1998-08-12$9.89$13.06153,200
1998-08-11$9.73$12.85142,000
1998-08-10$9.88$13.0359,600
1998-08-07$9.88$13.03264,800
1998-08-06$9.97$13.16134,400
1998-08-05$9.73$12.85104,800
1998-08-04$9.47$12.50115,600
1998-08-03$9.80$12.9383,200
1998-07-31$9.80$12.93149,600
1998-07-30$10.08$13.30134,400
1998-07-29$10.08$13.30127,200
1998-07-28$10.05$13.26151,200
1998-07-27$10.47$13.8246,000
1998-07-24$10.50$13.8631,200
1998-07-23$10.69$14.1135,200
1998-07-22$10.97$14.4833,600
1998-07-21$11.09$14.64308,800
1998-07-20$11.20$14.79116,800
1998-07-17$11.38$15.0125,600
1998-07-16$11.34$14.9759,200
1998-07-15$11.31$14.9358,400
1998-07-14$11.34$14.9751,200
1998-07-13$11.25$14.8528,800
1998-07-10$11.08$14.6240,000
1998-07-09$11.13$14.684,800
1998-07-08$11.02$14.5472,000
1998-07-07$10.89$14.38111,600
1998-07-06$11.02$14.5462,400
1998-07-02$11.09$14.6431,600
1998-07-01$11.13$14.6881,200
1998-06-30$11.19$14.77167,200
1998-06-29$11.13$14.6868,000
1998-06-26$11.41$15.06112,400
1998-06-25$11.41$14.9458,400
1998-06-24$11.38$14.9098,400
1998-06-23$11.20$14.67134,800
1998-06-22$10.86$14.2244,800
1998-06-19$10.58$13.8675,200
1998-06-18$10.81$14.1648,000
1998-06-17$10.84$14.2060,400
1998-06-16$10.67$13.98123,200
1998-06-15$10.69$14.00125,600
1998-06-12$10.70$14.0285,200
1998-06-11$10.50$13.7569,200
1998-06-10$10.77$14.1095,200
1998-06-09$10.97$14.3773,200
1998-06-08$11.13$14.5784,800
1998-06-05$11.09$14.5330,400
1998-06-04$11.22$14.6962,400
1998-06-03$11.09$14.53191,200
1998-06-02$11.02$14.4390,400
1998-06-01$11.02$14.43106,800
1998-05-29$10.78$14.1280,800
1998-05-28$10.59$13.8871,200
1998-05-27$10.53$13.79175,600
1998-05-26$10.75$14.08202,400
1998-05-22$10.55$13.8122,800
1998-05-21$10.66$13.96134,400
1998-05-20$10.69$14.0074,800
1998-05-19$10.70$14.0266,400
1998-05-18$10.50$13.7554,400
1998-05-15$10.58$13.8630,000
1998-05-14$10.56$13.8374,400
1998-05-13$10.73$14.06156,000
1998-05-12$10.75$14.0827,600
1998-05-11$10.94$14.3396,400
1998-05-08$10.81$14.16121,200
1998-05-07$10.72$14.04736,000
1998-05-06$10.63$13.9246,000
1998-05-05$10.78$14.1230,400
1998-05-04$10.95$14.35188,800
1998-05-01$10.92$14.3170,800
1998-04-30$10.97$14.37180,000
1998-04-29$11.00$14.4180,800
1998-04-28$10.98$14.3995,200
1998-04-27$10.91$14.29177,600
1998-04-24$11.34$14.86107,200
1998-04-23$11.31$14.8276,000
1998-04-22$11.39$14.9254,400
1998-04-21$11.50$15.0688,400
1998-04-20$11.55$15.12206,000
1998-04-17$11.42$14.9682,000
1998-04-16$11.22$14.69120,400
1998-04-15$11.31$14.82305,200
1998-04-14$11.58$15.17182,000
1998-04-13$11.00$14.41100,400
1998-04-09$11.17$14.6398,400
1998-04-08$11.03$14.4549,600
1998-04-07$10.98$14.39113,200
1998-04-06$11.19$14.6597,200
1998-04-03$11.14$14.5958,000
1998-04-02$11.11$14.55108,800
1998-04-01$10.94$14.3352,000
1998-03-31$10.83$14.18226,800
1998-03-30$10.83$14.18134,800
1998-03-27$11.09$14.5376,800
1998-03-26$11.23$14.6063,600
1998-03-25$11.31$14.70164,400
1998-03-24$11.34$14.74103,200
1998-03-23$11.14$14.48154,000
1998-03-20$11.06$14.38120,000
1998-03-19$10.94$14.21144,000
1998-03-18$10.75$13.97427,200
1998-03-17$10.56$13.7373,200
1998-03-16$10.73$13.95174,000
1998-03-13$10.72$13.93227,600
1998-03-12$10.64$13.8386,400
1998-03-11$10.80$14.03179,200
1998-03-10$10.66$13.8544,400
1998-03-09$10.66$13.85279,200
1998-03-06$10.61$13.79405,600
1998-03-05$10.55$13.71262,400
1998-03-04$10.64$13.83112,800
1998-03-03$10.50$13.65249,600
1998-03-02$10.17$13.22176,000
1998-02-27$10.33$13.42134,400
1998-02-26$10.14$13.18160,000
1998-02-25$10.13$13.16282,400
1998-02-24$9.92$12.89490,400
1998-02-23$9.70$12.61181,600
1998-02-20$9.59$12.47145,200
1998-02-19$9.44$12.27143,200
1998-02-18$9.84$12.7984,800
1998-02-17$9.80$12.7374,800
1998-02-13$9.86$12.81138,400
1998-02-12$9.80$12.73124,800
1998-02-11$9.78$12.71144,000
1998-02-10$9.78$12.7162,800
1998-02-09$9.88$12.83327,600
1998-02-06$9.63$12.51137,600
1998-02-05$9.78$12.71400,000
1998-02-04$9.72$12.63922,000
1998-02-03$9.80$12.73232,800
1998-02-02$9.58$12.45330,800
1998-01-30$9.25$12.02241,200
1998-01-29$9.20$11.96211,200
1998-01-28$9.28$12.06209,600
1998-01-27$9.22$11.98195,600
1998-01-26$8.97$11.66289,200
1998-01-23$9.19$11.94156,400
1998-01-22$8.92$11.601,133,200
1998-01-21$8.75$11.37182,000
1998-01-20$8.73$11.35359,600
1998-01-16$8.48$11.0360,400
1998-01-15$8.44$10.9756,000
1998-01-14$8.50$11.0524,000
1998-01-13$8.53$11.0962,000
1998-01-12$8.44$10.9743,600
1998-01-09$8.47$11.0198,000
1998-01-08$8.45$10.9934,800
1998-01-07$8.56$11.1319,600
1998-01-06$8.58$11.15124,400
1998-01-05$8.61$11.1924,800
1998-01-02$8.55$11.1142,800