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 — 2010

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2010-12-31$21.90$21.90111,700
2010-12-30$21.85$21.8577,500
2010-12-29$22.12$22.12168,600
2010-12-28$21.86$21.86216,100
2010-12-27$21.89$21.8995,000
2010-12-23$21.85$21.85180,400
2010-12-22$22.22$22.22187,800
2010-12-21$21.82$21.82152,600
2010-12-20$21.74$21.74217,600
2010-12-17$22.04$22.04161,600
2010-12-16$21.96$21.96478,400
2010-12-15$21.69$21.69346,800
2010-12-14$21.52$21.52440,800
2010-12-13$20.32$20.32180,400
2010-12-10$20.29$20.29898,800
2010-12-09$19.24$19.241,012,100
2010-12-08$19.83$19.83224,400
2010-12-07$19.86$19.86331,300
2010-12-06$19.72$19.72248,100
2010-12-03$19.87$19.87678,400
2010-12-02$20.00$20.00280,700
2010-12-01$20.10$20.10286,100
2010-11-30$20.10$20.10261,500
2010-11-29$20.47$20.47325,500
2010-11-26$20.36$20.3666,300
2010-11-24$20.32$20.32836,200
2010-11-23$19.83$19.83483,100
2010-11-22$19.95$19.95180,700
2010-11-19$20.25$20.25230,700
2010-11-18$20.48$20.48556,900
2010-11-17$19.96$19.96166,400
2010-11-16$19.99$19.99176,200
2010-11-15$20.16$20.16103,600
2010-11-12$20.24$20.24113,100
2010-11-11$20.57$20.57323,000
2010-11-10$20.06$20.06242,700
2010-11-09$20.06$20.06262,900
2010-11-08$20.19$20.19853,400
2010-11-05$20.09$20.091,868,700
2010-11-04$20.06$20.06618,400
2010-11-03$20.15$20.15309,000
2010-11-02$20.09$20.09839,500
2010-11-01$19.22$19.22265,800
2010-10-29$19.35$19.35336,900
2010-10-28$19.66$19.66548,500
2010-10-27$19.46$19.46660,500
2010-10-26$19.45$19.451,023,400
2010-10-25$19.53$19.53845,900
2010-10-22$20.00$20.001,233,600
2010-10-21$20.72$20.724,747,900
2010-10-20$20.08$20.08998,300
2010-10-19$21.25$21.25577,000
2010-10-18$21.48$21.48338,300
2010-10-15$21.37$21.37312,400
2010-10-14$21.29$21.29566,500
2010-10-13$20.92$20.92532,700
2010-10-12$20.89$20.89577,200
2010-10-11$20.98$20.98298,100
2010-10-08$21.17$21.17127,100
2010-10-07$21.25$21.25302,900
2010-10-06$21.39$21.39494,100
2010-10-05$21.86$21.86900,300
2010-10-04$21.55$21.55195,200
2010-10-01$21.50$21.50618,600
2010-09-30$21.62$21.62276,600
2010-09-29$21.70$21.70784,600
2010-09-28$21.88$21.88334,400
2010-09-27$22.14$22.14584,100
2010-09-24$22.62$22.62832,100
2010-09-23$22.85$22.85337,200
2010-09-22$22.25$22.25441,800
2010-09-21$21.97$21.971,061,900
2010-09-20$22.87$22.87279,200
2010-09-17$22.96$22.96123,100
2010-09-16$23.02$23.02102,900
2010-09-15$23.66$23.66157,900
2010-09-14$23.17$23.17166,400
2010-09-13$23.20$23.20182,900
2010-09-10$23.30$23.30187,400
2010-09-09$23.71$23.71258,800
2010-09-08$23.36$23.36125,900
2010-09-07$23.01$23.01115,700
2010-09-03$22.97$22.97102,800
2010-09-02$22.83$22.83197,000
2010-09-01$22.53$22.53235,600
2010-08-31$22.00$22.00299,700
2010-08-30$22.47$22.47209,000
2010-08-27$23.44$23.44186,000
2010-08-26$22.83$22.83282,700
2010-08-25$22.29$22.29211,300
2010-08-24$22.49$22.49223,900
2010-08-23$23.20$23.20432,600
2010-08-20$22.49$22.49530,400
2010-08-19$22.50$22.50213,000
2010-08-18$23.05$23.05130,000
2010-08-17$23.25$23.2580,200
2010-08-16$23.06$23.06113,100
2010-08-13$23.19$23.19240,800
2010-08-12$23.43$23.43325,800
2010-08-11$23.68$23.68278,700
2010-08-10$24.17$24.17389,100
2010-08-09$24.57$24.57241,900
2010-08-06$23.90$23.901,234,100
2010-08-05$22.96$22.96410,900
2010-08-04$23.67$23.67689,400
2010-08-03$23.54$23.54397,600
2010-08-02$23.68$23.68390,300
2010-07-30$23.60$23.60583,100
2010-07-29$23.04$23.04572,100
2010-07-28$24.07$24.071,013,800
2010-07-27$25.14$25.141,284,400
2010-07-26$27.69$27.69122,200
2010-07-23$27.08$27.08153,300
2010-07-22$27.47$27.47114,100
2010-07-21$27.15$27.15126,800
2010-07-20$26.96$26.9678,200
2010-07-19$26.77$26.77125,100
2010-07-16$26.62$26.62178,400
2010-07-15$27.55$27.55300,700
2010-07-14$27.18$27.18253,500
2010-07-13$27.56$27.56444,200
2010-07-12$27.00$27.00221,400
2010-07-09$27.20$27.20303,200
2010-07-08$26.98$26.98358,600
2010-07-07$27.57$27.57282,200
2010-07-06$27.33$27.33235,700
2010-07-02$27.15$27.15130,200
2010-07-01$27.45$27.45540,200
2010-06-30$28.89$28.89338,400
2010-06-29$28.27$28.27214,400
2010-06-28$29.24$29.24359,400
2010-06-25$29.30$29.30577,200
2010-06-24$28.56$28.56658,400
2010-06-23$27.61$27.61522,400
2010-06-22$28.30$28.30222,100
2010-06-21$29.49$29.49445,200
2010-06-18$29.80$29.80195,500
2010-06-17$29.99$29.99224,400
2010-06-16$29.78$29.78333,900
2010-06-15$29.54$29.54377,800
2010-06-14$28.36$28.36282,400
2010-06-11$27.15$27.15127,700
2010-06-10$26.84$26.84319,500
2010-06-09$26.84$26.84170,500
2010-06-08$26.33$26.33132,500
2010-06-07$26.32$26.32169,400
2010-06-04$27.07$27.07235,600
2010-06-03$28.13$28.13368,100
2010-06-02$28.32$28.32355,300
2010-06-01$27.91$27.91189,400
2010-05-28$27.81$27.81153,800
2010-05-27$27.85$27.85181,600
2010-05-26$26.70$26.70103,200
2010-05-25$26.94$26.94158,500
2010-05-24$26.67$26.67250,200
2010-05-21$27.24$27.24475,300
2010-05-20$26.20$26.20395,400
2010-05-19$27.63$27.63295,000
2010-05-18$28.04$28.04276,000
2010-05-17$28.30$28.30119,900
2010-05-14$28.37$28.37408,900
2010-05-13$28.52$28.52175,900
2010-05-12$29.23$29.23493,900
2010-05-11$27.82$27.82324,900
2010-05-10$27.52$27.52286,000
2010-05-07$27.26$27.26676,500
2010-05-06$28.49$28.491,114,700
2010-05-05$29.49$29.49387,400
2010-05-04$29.04$29.04438,000
2010-05-03$29.38$29.38374,200
2010-04-30$29.17$29.17384,700
2010-04-29$29.45$29.45342,700
2010-04-28$29.34$29.34628,300
2010-04-27$28.87$28.871,519,300
2010-04-26$26.95$26.95431,400
2010-04-23$27.07$27.07322,600
2010-04-22$27.24$27.24597,000
2010-04-21$27.80$27.80507,100
2010-04-20$27.87$27.87173,900
2010-04-19$27.92$27.92339,900
2010-04-16$27.89$27.89712,300
2010-04-15$27.14$27.14772,900
2010-04-14$26.50$26.50257,400
2010-04-13$26.21$26.21219,900
2010-04-12$26.47$26.47514,800
2010-04-09$26.60$26.60429,500
2010-04-08$26.86$26.86241,200
2010-04-07$27.08$27.08440,100
2010-04-06$27.07$27.07294,500
2010-04-05$26.82$26.82377,700
2010-04-01$26.49$26.49380,900
2010-03-31$26.41$26.41507,700
2010-03-30$26.76$26.76226,200
2010-03-29$26.81$26.81357,000
2010-03-26$27.18$27.18541,000
2010-03-25$27.27$27.271,159,700
2010-03-24$26.41$26.41524,100
2010-03-23$26.05$26.05425,200
2010-03-22$25.19$25.19234,200
2010-03-19$24.93$24.93443,300
2010-03-18$25.32$25.32409,200
2010-03-17$25.31$25.31468,400
2010-03-16$24.68$24.68682,900
2010-03-15$23.64$23.64134,900
2010-03-12$24.00$24.00271,000
2010-03-11$24.06$24.06827,200
2010-03-10$23.94$23.94423,600
2010-03-09$23.83$23.831,105,900
2010-03-08$24.25$24.25527,300
2010-03-05$24.39$24.39282,900
2010-03-04$24.46$24.46275,200
2010-03-03$24.94$24.94217,000
2010-03-02$24.46$24.46388,900
2010-03-01$23.64$23.64870,700
2010-02-26$23.55$23.55467,000
2010-02-25$23.90$23.901,182,000
2010-02-24$24.90$24.90507,700
2010-02-23$24.82$24.82364,400
2010-02-22$25.45$25.45234,000
2010-02-19$25.26$25.26198,800
2010-02-18$25.28$25.28247,400
2010-02-17$25.03$25.0395,800
2010-02-16$24.54$24.54133,000
2010-02-12$24.08$24.08108,600
2010-02-11$24.21$24.21171,500
2010-02-10$23.75$23.75171,000
2010-02-09$23.70$23.70529,800
2010-02-08$23.96$23.96242,500
2010-02-05$24.39$24.39194,500
2010-02-04$24.73$24.73280,700
2010-02-03$25.97$25.97270,300
2010-02-02$25.88$25.88368,800
2010-02-01$25.37$25.37367,700
2010-01-29$24.84$24.84456,600
2010-01-28$24.84$24.84674,300
2010-01-27$25.16$25.16414,800
2010-01-26$24.67$24.672,035,200
2010-01-25$22.77$22.77522,400
2010-01-22$23.00$23.00796,600
2010-01-21$23.28$23.28524,400
2010-01-20$23.66$23.66556,800
2010-01-19$24.30$24.301,206,500
2010-01-15$24.72$24.72268,700
2010-01-14$25.67$25.67299,500
2010-01-13$25.62$25.62310,300
2010-01-12$25.17$25.17489,300
2010-01-11$25.23$25.23511,400
2010-01-08$23.87$23.87440,700
2010-01-07$24.14$24.141,043,500
2010-01-06$22.58$22.58802,700
2010-01-05$22.02$22.02608,400
2010-01-04$21.61$21.61221,700