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 — 2024

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2024-12-31$209.71$209.71399,300
2024-12-30$209.64$209.64331,900
2024-12-27$212.29$212.29395,300
2024-12-26$213.82$213.82591,100
2024-12-24$213.26$213.26453,800
2024-12-23$210.02$210.02828,800
2024-12-20$207.51$207.51849,900
2024-12-19$204.61$204.611,161,300
2024-12-18$204.40$204.401,442,000
2024-12-17$203.26$203.261,220,700
2024-12-16$204.18$204.181,316,600
2024-12-13$208.15$208.15976,900
2024-12-12$210.81$210.811,040,600
2024-12-11$212.18$212.181,198,600
2024-12-10$215.96$215.961,259,500
2024-12-09$219.23$219.231,013,800
2024-12-06$217.47$217.471,290,900
2024-12-05$209.49$209.49878,800
2024-12-04$214.50$214.501,039,400
2024-12-03$212.99$212.991,349,000
2024-12-02$213.56$213.561,662,400
2024-11-29$210.25$210.25311,200
2024-11-27$212.84$212.84468,500
2024-11-26$212.15$212.15968,700
2024-11-25$216.76$216.761,248,100
2024-11-22$214.25$214.252,528,300
2024-11-21$212.76$212.762,425,200
2024-11-20$203.67$203.671,837,100
2024-11-19$195.60$195.601,508,200
2024-11-18$187.22$187.221,902,000
2024-11-15$189.64$189.642,203,300
2024-11-14$200.02$200.021,757,900
2024-11-13$203.90$203.901,804,800
2024-11-12$212.27$212.271,454,300
2024-11-11$212.18$212.181,325,500
2024-11-08$214.93$214.932,209,700
2024-11-07$215.01$215.013,032,600
2024-11-06$223.85$223.851,673,900
2024-11-05$226.42$226.421,140,200
2024-11-04$218.80$218.801,303,200
2024-11-01$220.40$220.401,493,200
2024-10-31$222.11$222.112,874,200
2024-10-30$227.89$227.891,605,100
2024-10-29$232.40$232.401,835,000
2024-10-28$230.50$230.502,292,500
2024-10-25$220.47$220.472,593,300
2024-10-24$221.73$221.736,192,400
2024-10-23$280.76$280.761,932,600
2024-10-22$283.49$283.491,378,700
2024-10-21$288.64$288.64978,300
2024-10-18$297.72$297.72506,600
2024-10-17$295.24$295.24742,100
2024-10-16$293.60$293.60437,200
2024-10-15$294.87$294.87230,500
2024-10-14$296.55$296.55405,800
2024-10-11$296.65$296.65312,000
2024-10-10$296.29$296.29626,300
2024-10-09$292.66$292.66573,700
2024-10-08$287.56$287.56525,600
2024-10-07$290.37$290.37410,400
2024-10-04$293.54$293.54482,700
2024-10-03$293.18$293.18725,100
2024-10-02$294.39$294.39709,600
2024-10-01$284.51$284.51674,000
2024-09-30$287.31$287.31342,800
2024-09-27$285.61$285.61653,400
2024-09-26$286.13$286.13999,000
2024-09-25$283.92$283.921,057,200
2024-09-24$296.44$296.44458,000
2024-09-23$296.30$296.30613,000
2024-09-20$303.07$303.071,013,700
2024-09-19$300.92$300.92299,200
2024-09-18$302.45$302.45959,800
2024-09-17$292.54$292.54524,600
2024-09-16$295.58$295.58806,500
2024-09-13$300.00$300.00610,000
2024-09-12$299.69$299.691,491,000
2024-09-11$289.81$289.811,436,600
2024-09-10$280.48$280.481,822,800
2024-09-09$298.70$298.701,119,800
2024-09-06$302.52$302.52277,800
2024-09-05$308.00$308.00296,800
2024-09-04$312.52$312.52230,100
2024-09-03$312.22$312.22451,700
2024-08-30$322.06$322.06446,100
2024-08-29$320.58$320.58345,300
2024-08-28$320.74$320.74318,700
2024-08-27$326.01$326.01215,400
2024-08-26$322.97$322.97233,200
2024-08-23$324.16$324.16195,600
2024-08-22$320.32$320.32624,200
2024-08-21$323.13$323.13195,600
2024-08-20$323.99$323.99302,200
2024-08-19$324.91$324.91172,400
2024-08-16$322.49$322.49191,000
2024-08-15$321.53$321.53284,600
2024-08-14$317.42$317.42187,800
2024-08-13$320.34$320.34418,900
2024-08-12$311.72$311.72329,100
2024-08-09$312.93$312.93206,000
2024-08-08$313.04$313.04356,200
2024-08-07$306.57$306.57535,800
2024-08-06$312.53$312.53450,100
2024-08-05$310.49$310.49646,300
2024-08-02$317.08$317.08418,000
2024-08-01$327.15$327.15370,500
2024-07-31$328.44$328.44578,300
2024-07-30$330.51$330.51543,900
2024-07-29$329.33$329.33711,600
2024-07-26$323.46$323.46908,600
2024-07-25$313.10$313.101,550,400
2024-07-24$331.77$331.77900,600
2024-07-23$332.23$332.23533,400
2024-07-22$339.93$339.93425,600
2024-07-19$329.70$329.70371,600
2024-07-18$327.80$327.80531,000
2024-07-17$333.92$333.92685,400
2024-07-16$346.20$346.20699,800
2024-07-15$340.86$340.86464,900
2024-07-12$336.03$336.03453,000
2024-07-11$334.20$334.20386,100
2024-07-10$328.65$328.65451,100
2024-07-09$324.00$324.00421,400
2024-07-08$320.92$320.92322,800
2024-07-05$320.77$320.77329,900
2024-07-03$318.01$318.01378,100
2024-07-02$318.30$318.30645,100
2024-07-01$316.51$316.51677,800
2024-06-28$313.47$313.475,539,300
2024-06-27$313.22$313.22519,800
2024-06-26$312.98$312.98516,200
2024-06-25$315.46$315.46512,000
2024-06-24$316.85$316.85456,100
2024-06-21$318.78$318.78607,400
2024-06-20$316.00$316.00474,400
2024-06-18$318.63$318.63435,100
2024-06-17$316.39$316.39553,200
2024-06-14$313.33$313.33319,400
2024-06-13$317.92$317.92538,900
2024-06-12$319.78$319.78382,000
2024-06-11$317.04$317.04424,000
2024-06-10$319.84$319.84400,600
2024-06-07$319.28$319.28634,400
2024-06-06$322.02$322.02677,100
2024-06-05$329.65$329.65473,800
2024-06-04$318.08$318.08425,700
2024-06-03$323.49$323.49469,100
2024-05-31$324.82$324.82674,300
2024-05-30$322.92$322.921,021,100
2024-05-29$309.52$309.52493,200
2024-05-28$321.06$321.06566,400
2024-05-24$320.72$320.72582,300
2024-05-23$320.00$320.00651,800
2024-05-22$316.94$316.94370,400
2024-05-21$317.88$317.88327,700
2024-05-20$318.72$318.72358,600
2024-05-17$314.72$314.72224,300
2024-05-16$315.83$315.83247,400
2024-05-15$321.80$321.80509,300
2024-05-14$315.57$315.57475,000
2024-05-13$309.51$309.51414,100
2024-05-10$315.39$315.39448,700
2024-05-09$315.04$315.04396,000
2024-05-08$311.75$311.75541,500
2024-05-07$314.54$314.54617,400
2024-05-06$315.14$315.14491,800
2024-05-03$309.02$309.02567,300
2024-05-02$301.07$301.07641,900
2024-05-01$301.61$301.61357,000
2024-04-30$297.88$297.88412,900
2024-04-29$304.14$304.14616,000
2024-04-26$308.31$308.31715,400
2024-04-25$300.08$300.081,196,400
2024-04-24$309.44$309.44962,300
2024-04-23$306.45$306.45855,900
2024-04-22$297.93$297.93779,000
2024-04-19$288.23$288.23647,900
2024-04-18$291.82$291.82496,000
2024-04-17$292.02$292.02386,200
2024-04-16$294.03$294.03667,700
2024-04-15$299.12$299.12384,800
2024-04-12$306.00$306.00393,700
2024-04-11$312.39$312.39198,500
2024-04-10$312.51$312.51313,500
2024-04-09$319.14$319.14395,600
2024-04-08$320.96$320.96302,600
2024-04-05$318.83$318.83431,200
2024-04-04$313.18$313.18549,100
2024-04-03$321.09$321.09530,800
2024-04-02$322.67$322.67483,600
2024-04-01$331.73$331.73428,100
2024-03-28$335.95$335.95520,500
2024-03-27$329.50$329.50541,100
2024-03-26$329.91$329.91441,900
2024-03-25$329.80$329.80365,100
2024-03-22$332.00$332.00476,400
2024-03-21$337.28$337.28418,400
2024-03-20$335.74$335.74342,700
2024-03-19$334.79$334.79365,400
2024-03-18$332.51$332.51377,000
2024-03-15$334.76$334.76416,200
2024-03-14$333.68$333.68301,100
2024-03-13$333.50$333.50488,700
2024-03-12$338.36$338.36681,200
2024-03-11$332.38$332.38754,400
2024-03-08$334.64$334.64515,000
2024-03-07$340.00$340.00373,000
2024-03-06$335.62$335.62673,600
2024-03-05$335.49$335.49661,300
2024-03-04$331.26$331.26650,300
2024-03-01$325.51$325.51450,700
2024-02-29$320.62$320.62478,500
2024-02-28$323.44$323.44508,500
2024-02-27$322.46$322.46514,000
2024-02-26$318.73$318.73891,700
2024-02-23$314.19$314.19703,500
2024-02-22$313.37$313.371,245,500
2024-02-21$284.70$284.70630,700
2024-02-20$283.48$283.48725,500
2024-02-16$289.03$289.03587,400
2024-02-15$290.14$290.14756,000
2024-02-14$292.72$292.721,025,400
2024-02-13$275.15$275.15606,600
2024-02-12$278.05$278.05697,900
2024-02-09$278.48$278.48579,100
2024-02-08$273.84$273.84360,900
2024-02-07$269.06$269.06293,000
2024-02-06$265.48$265.48464,200
2024-02-05$265.79$265.79471,400
2024-02-02$260.50$260.50536,000
2024-02-01$260.50$260.50484,500
2024-01-31$260.87$260.87774,500
2024-01-30$262.52$262.52592,400
2024-01-29$267.83$267.83358,200
2024-01-26$266.51$266.51349,200
2024-01-25$265.49$265.49337,400
2024-01-24$263.73$263.73503,600
2024-01-23$263.98$263.98626,600
2024-01-22$265.23$265.23642,500
2024-01-19$259.57$259.57799,700
2024-01-18$254.24$254.24678,400
2024-01-17$247.84$247.84486,300
2024-01-16$250.92$250.92614,500
2024-01-12$255.00$255.00627,200
2024-01-11$255.20$255.20512,500
2024-01-10$259.15$259.151,051,500
2024-01-09$271.19$271.19616,000
2024-01-08$272.83$272.83232,700
2024-01-05$270.72$270.72551,400
2024-01-04$268.40$268.40780,200
2024-01-03$268.74$268.74895,700
2024-01-02$280.81$280.81370,000