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 — 2012

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2012-12-31$27.76$27.76167,200——
2012-12-28$27.57$27.57224,000——
2012-12-27$27.66$27.6686,900——
2012-12-26$27.63$27.6389,900——
2012-12-24$27.90$27.9048,000——
2012-12-21$28.08$28.08421,600——
2012-12-20$28.43$28.43186,000——
2012-12-19$28.18$28.18204,100——
2012-12-18$28.54$28.54186,400——
2012-12-17$28.31$28.31170,600——
2012-12-14$28.21$28.21325,200——
2012-12-13$27.90$27.90540,200——
2012-12-12$28.08$28.08341,000——
2012-12-11$27.84$27.84244,200——
2012-12-10$27.67$27.67527,600——
2012-12-07$27.27$27.27300,200——
2012-12-06$27.73$27.73219,200——
2012-12-05$27.44$27.44795,900——
2012-12-04$27.66$27.66295,300——
2012-12-03$27.90$27.90190,900——
2012-11-30$27.59$27.59255,700——
2012-11-29$27.94$27.94219,900——
2012-11-28$27.65$27.65328,600——
2012-11-27$27.79$27.79342,100——
2012-11-26$27.59$27.59295,300——
2012-11-23$27.58$27.5879,900——
2012-11-21$27.39$27.39215,700——
2012-11-20$27.59$27.59200,900——
2012-11-19$27.97$27.97594,700——
2012-11-16$27.33$27.33740,500——
2012-11-15$26.83$26.83318,900——
2012-11-14$26.86$26.86126,000——
2012-11-13$27.23$27.23308,900——
2012-11-12$27.32$27.32475,000——
2012-11-09$26.71$26.71296,800——
2012-11-08$26.40$26.40184,100——
2012-11-07$26.95$26.95791,900——
2012-11-06$26.40$26.40266,200——
2012-11-05$26.33$26.33373,700——
2012-11-02$26.47$26.471,052,100——
2012-11-01$24.14$24.14577,600——
2012-10-31$23.54$23.54351,200——
2012-10-26$24.02$24.02188,800——
2012-10-25$24.07$24.0792,700——
2012-10-24$23.97$23.97239,400——
2012-10-23$23.46$23.46118,200——
2012-10-22$23.64$23.64114,300——
2012-10-19$23.73$23.73178,600——
2012-10-18$24.27$24.27151,300——
2012-10-17$24.81$24.81149,700——
2012-10-16$24.81$24.81125,600——
2012-10-15$24.65$24.65202,200——
2012-10-12$24.28$24.2872,800——
2012-10-11$24.31$24.3163,500——
2012-10-10$24.16$24.16118,600——
2012-10-09$24.20$24.20135,900——
2012-10-08$24.45$24.4556,800——
2012-10-05$24.67$24.67355,000——
2012-10-04$24.94$24.94101,800——
2012-10-03$24.55$24.55262,400——
2012-10-02$24.51$24.51171,800——
2012-10-01$24.40$24.40253,200——
2012-09-28$24.37$24.37269,100——
2012-09-27$24.03$24.0388,500——
2012-09-26$23.82$23.82183,600——
2012-09-25$24.02$24.02108,600——
2012-09-24$24.16$24.1653,600——
2012-09-21$24.62$24.62211,200——
2012-09-20$24.73$24.73242,900——
2012-09-19$24.31$24.31166,000——
2012-09-18$24.23$24.23270,500——
2012-09-17$23.99$23.99144,100——
2012-09-14$24.15$24.15120,000——
2012-09-13$24.30$24.30189,600——
2012-09-12$24.25$24.2543,900——
2012-09-11$24.50$24.50289,800——
2012-09-10$24.02$24.02264,200——
2012-09-07$24.04$24.04300,300——
2012-09-06$23.95$23.95325,100——
2012-09-05$23.31$23.31146,600——
2012-09-04$23.03$23.03179,200——
2012-08-31$22.92$22.9293,100——
2012-08-30$22.84$22.8484,300——
2012-08-29$23.30$23.30118,300——
2012-08-28$23.35$23.3567,200——
2012-08-27$23.29$23.29183,600——
2012-08-24$23.07$23.0762,500——
2012-08-23$23.16$23.1659,700——
2012-08-22$23.10$23.1062,100——
2012-08-21$23.44$23.4468,400——
2012-08-20$23.47$23.47144,700——
2012-08-17$23.14$23.14244,500——
2012-08-16$23.14$23.1496,500——
2012-08-15$23.21$23.21121,700——
2012-08-14$22.96$22.96303,400——
2012-08-13$23.30$23.30143,300——
2012-08-10$23.60$23.6091,100——
2012-08-09$23.93$23.93230,300——
2012-08-08$24.32$24.32183,300——
2012-08-07$23.96$23.96173,100——
2012-08-06$24.22$24.22145,000——
2012-08-03$24.19$24.1990,900——
2012-08-02$24.12$24.12141,500——
2012-08-01$24.08$24.08182,000——
2012-07-31$24.13$24.13260,100——
2012-07-30$23.94$23.94144,500——
2012-07-27$23.66$23.6665,800——
2012-07-26$23.36$23.3691,200——
2012-07-25$23.14$23.14131,800——
2012-07-24$22.71$22.71141,600——
2012-07-23$23.09$23.09180,400——
2012-07-20$23.19$23.19171,000——
2012-07-19$23.72$23.7270,800——
2012-07-18$23.83$23.83139,800——
2012-07-17$23.84$23.84155,200——
2012-07-16$23.41$23.4176,000——
2012-07-13$23.06$23.06162,800——
2012-07-12$22.97$22.97252,800——
2012-07-11$23.38$23.38176,800——
2012-07-10$23.81$23.81340,100——
2012-07-09$23.76$23.76183,900——
2012-07-06$23.22$23.22145,800——
2012-07-05$22.97$22.97669,900——
2012-07-03$23.27$23.27100,400——
2012-07-02$22.65$22.65151,000——
2012-06-29$22.53$22.53287,800——
2012-06-28$21.88$21.88154,100——
2012-06-27$22.12$22.12181,500——
2012-06-26$21.68$21.68203,200——
2012-06-25$21.94$21.94202,600——
2012-06-22$22.20$22.20129,500——
2012-06-21$21.97$21.9788,800——
2012-06-20$22.63$22.63319,000——
2012-06-19$21.91$21.91309,800——
2012-06-18$21.13$21.13585,300——
2012-06-15$21.46$21.46113,700——
2012-06-14$21.16$21.16126,900——
2012-06-13$21.10$21.10444,100——
2012-06-12$21.45$21.4566,800——
2012-06-11$21.29$21.2998,800——
2012-06-08$21.75$21.75105,600——
2012-06-07$21.77$21.77343,500——
2012-06-06$21.22$21.22183,700——
2012-06-05$20.89$20.89286,800——
2012-06-04$20.79$20.79106,900——
2012-06-01$20.96$20.96106,500——
2012-05-31$21.47$21.47145,800——
2012-05-30$21.70$21.70148,900——
2012-05-29$21.94$21.94149,900——
2012-05-25$21.93$21.93346,100——
2012-05-24$21.45$21.45156,900——
2012-05-23$21.60$21.60209,000——
2012-05-22$21.60$21.60179,000——
2012-05-21$21.95$21.95345,400——
2012-05-18$21.79$21.79225,800——
2012-05-17$21.80$21.80191,100——
2012-05-16$22.54$22.54323,200——
2012-05-15$22.18$22.1836,000——
2012-05-14$22.05$22.05295,700——
2012-05-11$22.40$22.4092,300——
2012-05-10$22.35$22.35216,000——
2012-05-09$21.93$21.9396,000——
2012-05-08$22.19$22.19115,300——
2012-05-07$22.18$22.18108,000——
2012-05-04$22.00$22.0070,900——
2012-05-03$22.50$22.50223,500——
2012-05-02$22.50$22.50281,700——
2012-05-01$22.10$22.10287,000——
2012-04-30$22.18$22.18276,000——
2012-04-27$22.30$22.30226,400——
2012-04-26$22.46$22.46271,800——
2012-04-25$22.44$22.44369,300——
2012-04-24$22.40$22.40727,300——
2012-04-23$20.95$20.95241,500——
2012-04-20$21.75$21.75160,200——
2012-04-19$21.51$21.5194,800——
2012-04-18$21.57$21.57125,700——
2012-04-17$21.34$21.34222,400——
2012-04-16$20.85$20.85189,000——
2012-04-13$21.38$21.38139,200——
2012-04-12$21.49$21.49217,200——
2012-04-11$21.97$21.97159,000——
2012-04-10$21.70$21.70424,200——
2012-04-09$21.62$21.6249,100——
2012-04-05$21.96$21.96125,000——
2012-04-04$22.38$22.38225,600——
2012-04-03$22.71$22.71262,400——
2012-04-02$22.28$22.28392,200——
2012-03-30$21.22$21.22243,000——
2012-03-29$21.25$21.25113,100——
2012-03-28$21.65$21.6591,900——
2012-03-27$21.80$21.80306,300——
2012-03-26$21.62$21.62197,500——
2012-03-23$21.76$21.76111,600——
2012-03-22$21.47$21.47265,300——
2012-03-21$21.16$21.16127,100——
2012-03-20$21.16$21.1659,900——
2012-03-19$21.65$21.65108,600——
2012-03-16$21.68$21.68176,300——
2012-03-15$21.57$21.57300,300——
2012-03-14$21.80$21.80168,800——
2012-03-13$22.00$22.00213,700——
2012-03-12$21.65$21.65124,800——
2012-03-09$21.64$21.64227,400——
2012-03-08$21.65$21.6597,200——
2012-03-07$21.25$21.25135,800——
2012-03-06$21.09$21.09150,200——
2012-03-05$21.37$21.37111,400——
2012-03-02$21.44$21.44184,500——
2012-03-01$21.29$21.29183,900——
2012-02-29$21.18$21.18175,600——
2012-02-28$21.08$21.08256,600——
2012-02-27$20.95$20.95116,700——
2012-02-24$21.14$21.1460,900——
2012-02-23$21.10$21.10132,600——
2012-02-22$20.59$20.5993,800——
2012-02-21$20.38$20.38188,400——
2012-02-17$20.25$20.25168,600——
2012-02-16$20.45$20.45311,300——
2012-02-15$20.78$20.78644,100——
2012-02-14$20.42$20.42231,800——
2012-02-13$20.51$20.5198,500——
2012-02-10$20.31$20.31219,700——
2012-02-09$20.26$20.2693,200——
2012-02-08$20.37$20.3761,500——
2012-02-07$20.46$20.46135,700——
2012-02-06$20.73$20.73164,700——
2012-02-03$20.71$20.71211,500——
2012-02-02$20.24$20.24229,400——
2012-02-01$20.49$20.49257,700——
2012-01-31$19.52$19.52383,700——
2012-01-30$19.01$19.01115,500——
2012-01-27$19.00$19.00167,100——
2012-01-26$18.58$18.58170,200——
2012-01-25$18.87$18.87157,000——
2012-01-24$18.89$18.89207,500——
2012-01-23$18.40$18.40186,100——
2012-01-20$18.36$18.36231,700——
2012-01-19$18.54$18.54162,000——
2012-01-18$18.55$18.55201,200——
2012-01-17$18.52$18.52132,000——
2012-01-13$18.45$18.45154,400——
2012-01-12$18.53$18.53434,300——
2012-01-11$18.68$18.68291,900——
2012-01-10$18.52$18.52203,700——
2012-01-09$17.78$17.78185,200——
2012-01-06$17.50$17.50147,600——
2012-01-05$17.18$17.18159,800——
2012-01-04$17.06$17.06188,600——
2012-01-03$17.27$17.27210,300——