NASDAQ:ICLR | Historical Stock Price | ICON PLC

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
1998-05-15 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$3.03$7.85$20.34$52.72$136.64$354.141998-05-152026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2001

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2001-12-31$7.45$7.45178,800
2001-12-28$7.42$7.4271,200
2001-12-27$7.59$7.59164,800
2001-12-26$7.59$7.5973,200
2001-12-24$7.42$7.4231,600
2001-12-21$7.43$7.43113,200
2001-12-20$7.30$7.30360,400
2001-12-19$7.44$7.44913,200
2001-12-18$7.60$7.60458,800
2001-12-17$7.49$7.49305,600
2001-12-14$7.13$7.13521,600
2001-12-13$7.14$7.14603,600
2001-12-12$7.26$7.26635,200
2001-12-11$7.26$7.26508,000
2001-12-10$7.28$7.2883,200
2001-12-07$7.27$7.27103,200
2001-12-06$7.45$7.45180,000
2001-12-05$7.38$7.38845,600
2001-12-04$6.94$6.94604,000
2001-12-03$6.63$6.63802,400
2001-11-30$6.55$6.552,518,400
2001-11-29$5.91$5.911,681,200
2001-11-28$5.94$5.94370,800
2001-11-27$6.08$6.08968,000
2001-11-26$6.27$6.27937,600
2001-11-23$6.35$6.35368,400
2001-11-21$6.28$6.281,556,000
2001-11-20$6.17$6.171,004,400
2001-11-19$6.09$6.09161,200
2001-11-16$6.30$6.30220,400
2001-11-15$6.33$6.3391,200
2001-11-14$6.50$6.5061,600
2001-11-13$6.37$6.37349,200
2001-11-12$5.94$5.93260,400
2001-11-09$6.02$6.02628,800
2001-11-08$6.49$6.49232,400
2001-11-07$6.80$6.80122,000
2001-11-06$6.94$6.94226,800
2001-11-05$6.92$6.9281,200
2001-11-02$7.00$7.00203,600
2001-11-01$6.75$6.75256,000
2001-10-31$6.90$6.90174,000
2001-10-30$7.20$7.2050,400
2001-10-29$7.31$7.31489,600
2001-10-26$6.68$6.681,624,800
2001-10-25$6.38$6.381,292,000
2001-10-24$6.83$6.83709,600
2001-10-23$7.21$7.21514,400
2001-10-22$7.46$7.46149,200
2001-10-19$7.62$7.6260,000
2001-10-18$7.66$7.6666,400
2001-10-17$7.56$7.5685,200
2001-10-16$7.90$7.90741,600
2001-10-15$7.68$7.68242,800
2001-10-12$7.52$7.52159,600
2001-10-11$8.01$8.01101,200
2001-10-10$8.00$8.00452,000
2001-10-09$7.62$7.62157,200
2001-10-08$7.25$7.25286,800
2001-10-05$8.10$8.1087,200
2001-10-04$8.54$8.54198,400
2001-10-03$8.40$8.40190,800
2001-10-02$8.54$8.54322,800
2001-10-01$8.68$8.68711,200
2001-09-28$8.30$8.30338,000
2001-09-27$8.00$8.00383,200
2001-09-26$7.93$7.93360,800
2001-09-25$8.01$8.011,786,000
2001-09-24$7.50$7.50366,000
2001-09-21$8.00$8.00690,400
2001-09-20$7.75$7.75766,800
2001-09-19$7.62$7.62331,600
2001-09-18$7.48$7.48417,600
2001-09-17$7.12$7.12236,800
2001-09-10$7.61$7.61372,000
2001-09-07$7.76$7.76360,400
2001-09-06$8.42$8.4276,800
2001-09-05$8.48$8.48187,200
2001-09-04$8.46$8.4683,600
2001-08-31$8.85$8.8558,800
2001-08-30$8.62$8.6256,000
2001-08-29$8.90$8.90102,800
2001-08-28$8.82$8.82118,000
2001-08-27$8.62$8.6264,400
2001-08-24$8.56$8.5654,800
2001-08-23$8.32$8.3230,000
2001-08-22$8.34$8.34290,400
2001-08-21$8.24$8.24156,400
2001-08-20$8.16$8.16222,800
2001-08-17$8.22$8.22176,400
2001-08-16$8.52$8.52488,800
2001-08-15$8.46$8.46332,000
2001-08-14$8.38$8.38423,200
2001-08-13$8.62$8.6246,800
2001-08-10$8.75$8.75270,800
2001-08-09$8.53$8.53733,600
2001-08-08$8.57$8.57378,800
2001-08-07$8.75$8.75325,200
2001-08-06$8.73$8.73568,800
2001-08-03$8.63$8.63769,600
2001-08-02$8.60$8.601,101,600
2001-08-01$9.00$9.00611,200
2001-07-31$9.16$9.16513,200
2001-07-30$9.28$9.28580,000
2001-07-27$9.28$9.281,734,400
2001-07-26$9.30$9.30380,800
2001-07-25$9.00$9.00583,600
2001-07-24$9.00$9.001,263,200
2001-07-23$9.13$9.131,354,000
2001-07-20$9.32$9.321,279,600
2001-07-19$9.63$9.631,478,000
2001-07-18$8.93$8.932,360,800
2001-07-17$8.68$8.681,607,600
2001-07-16$8.58$8.58785,200
2001-07-13$8.65$8.651,271,600
2001-07-12$9.03$9.03539,600
2001-07-11$8.39$8.39285,200
2001-07-10$8.33$8.33540,800
2001-07-09$8.08$8.08306,000
2001-07-06$7.93$7.93231,200
2001-07-05$8.03$8.03374,000
2001-07-03$8.11$8.11654,400
2001-07-02$8.10$8.101,043,600
2001-06-29$7.54$7.54442,400
2001-06-28$8.25$8.25264,800
2001-06-27$8.00$8.00444,000
2001-06-26$8.06$8.061,411,600
2001-06-25$8.20$8.201,504,800
2001-06-22$8.30$8.301,857,200
2001-06-21$8.29$8.29644,000
2001-06-20$8.24$8.24286,400
2001-06-19$8.26$8.26893,600
2001-06-18$8.15$8.152,041,600
2001-06-15$7.33$7.3334,000
2001-06-14$7.34$7.3448,000
2001-06-13$7.39$7.39186,400
2001-06-12$7.35$7.3595,600
2001-06-11$7.38$7.38690,000
2001-06-08$7.48$7.48306,800
2001-06-07$7.05$7.05155,200
2001-06-06$7.09$7.09286,000
2001-06-05$7.10$7.1043,200
2001-06-04$6.75$6.7569,600
2001-06-01$6.85$6.85195,200
2001-05-31$6.63$6.6386,400
2001-05-30$6.29$6.29146,800
2001-05-29$6.25$6.2570,400
2001-05-25$6.27$6.2717,600
2001-05-24$6.35$6.3566,000
2001-05-23$6.26$6.26148,400
2001-05-22$6.25$6.25287,200
2001-05-21$6.18$6.1866,800
2001-05-18$6.40$6.4037,200
2001-05-17$6.58$6.58100,000
2001-05-16$6.00$6.00208,400
2001-05-15$5.98$5.98474,800
2001-05-14$6.12$6.12103,200
2001-05-11$6.14$6.14341,600
2001-05-10$5.86$5.86123,600
2001-05-09$5.75$5.75940,000
2001-05-08$5.76$5.76213,600
2001-05-07$5.80$5.8052,800
2001-05-04$5.78$5.78100,400
2001-05-03$5.51$5.5140,800
2001-05-02$5.55$5.55218,800
2001-05-01$5.62$5.6215,600
2001-04-30$5.77$5.77354,800
2001-04-27$5.74$5.7433,600
2001-04-26$5.86$5.8616,000
2001-04-25$5.84$5.8432,400
2001-04-24$6.00$6.00400
2001-04-23$5.96$5.96278,000
2001-04-20$6.23$6.23192,000
2001-04-19$6.06$6.06100,000
2001-04-18$5.34$5.34295,600
2001-04-17$5.24$5.24130,800
2001-04-16$5.31$5.3120,800
2001-04-12$5.21$5.21188,400
2001-04-11$5.18$5.1816,800
2001-04-10$5.18$5.1838,000
2001-04-09$5.15$5.15120,400
2001-04-06$5.56$5.5613,600
2001-04-05$5.59$5.59150,800
2001-04-04$5.75$5.75214,400
2001-04-03$5.78$5.78160,000
2001-04-02$5.72$5.7281,200
2001-03-30$5.77$5.77136,800
2001-03-29$5.59$5.59132,000
2001-03-28$5.34$5.3476,800
2001-03-27$5.44$5.44254,400
2001-03-26$5.00$5.0018,800
2001-03-23$5.06$5.06119,200
2001-03-22$4.75$4.751,002,000
2001-03-21$4.88$4.88305,200
2001-03-20$4.95$4.9562,000
2001-03-19$4.94$4.9415,200
2001-03-16$4.92$4.922,400
2001-03-15$5.00$5.0029,600
2001-03-14$4.94$4.946,400
2001-03-13$5.19$5.192,000
2001-03-12$5.22$5.2221,600
2001-03-09$5.38$5.38348,000
2001-03-08$4.78$4.78523,200
2001-03-07$5.06$5.06314,000
2001-03-06$5.09$5.09608,800
2001-03-05$5.31$5.31296,000
2001-03-02$5.50$5.50427,200
2001-03-01$5.81$5.8159,600
2001-02-28$5.88$5.8822,800
2001-02-27$5.73$5.7343,200
2001-02-26$6.17$6.17376,800
2001-02-23$5.72$5.722,400
2001-02-22$6.00$6.00100,400
2001-02-21$5.97$5.972,541,200
2001-02-20$5.75$5.75151,600
2001-02-16$6.22$6.22388,800
2001-02-15$6.34$6.34618,400
2001-02-14$6.84$6.841,282,000
2001-02-13$7.05$7.05611,600
2001-02-12$6.75$6.75734,800
2001-02-09$6.39$6.39246,000
2001-02-08$6.00$6.00150,000
2001-02-07$6.00$6.00117,600
2001-02-06$6.00$6.0063,200
2001-02-05$5.78$5.784,400
2001-02-02$5.81$5.8128,000
2001-02-01$6.13$6.1332,000
2001-01-31$5.91$5.9114,400
2001-01-30$5.75$5.75100,000
2001-01-29$5.56$5.5685,200
2001-01-26$5.31$5.3191,600
2001-01-25$5.41$5.4145,600
2001-01-24$5.42$5.4214,400
2001-01-23$5.38$5.384,000
2001-01-22$5.25$5.2522,000
2001-01-19$5.27$5.2716,000
2001-01-18$5.25$5.2516,400
2001-01-17$5.25$5.2526,000
2001-01-16$5.28$5.28227,200
2001-01-12$5.36$5.36162,400
2001-01-11$5.03$5.03227,600
2001-01-10$5.16$5.16512,000
2001-01-09$4.88$4.88204,800
2001-01-08$4.31$4.319,600
2001-01-05$4.31$4.312,000
2001-01-04$4.38$4.380
2001-01-03$4.38$4.3820,400
2001-01-02$4.00$4.004,400