ICON - 27 Year Stock Price History | ICLR

Historical daily share price chart and data for ICON since 1998 adjusted for splits and dividends. The latest closing stock price for ICON as of June 18, 2025 is 143.58.
  • The all-time high ICON stock closing price was 346.20 on July 16, 2024.
  • The ICON 52-week high stock price is 347.72, which is 142.2% above the current share price.
  • The ICON 52-week low stock price is 125.10, which is 12.9% below the current share price.
  • The average ICON stock price for the last 52 weeks is 226.58.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.
ICON Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2025 168.7028 212.6300 222.5800 126.6200 143.5800 -31.53%
2024 289.0992 280.8100 346.2000 187.2200 209.7100 -25.92%
2023 236.5612 193.5900 285.7600 183.1200 283.0700 45.72%
2022 222.5481 296.0300 296.0300 173.9000 194.2500 -37.28%
2021 234.5228 192.0200 309.7000 171.8700 309.7000 58.84%
2020 174.4277 169.5300 214.0800 115.9500 194.9800 13.21%
2019 146.2223 127.7400 172.2300 121.3000 172.2300 33.29%
2018 130.3122 114.4800 153.7500 103.8200 129.2100 15.21%
2017 98.0201 74.7100 123.0500 74.7100 112.1500 49.14%
2016 72.8944 74.5900 85.0400 63.0000 75.2000 -3.22%
2015 69.1203 51.6100 83.2800 51.6100 77.7000 52.38%
2014 48.3587 39.9600 58.0700 37.9200 50.9900 26.16%
2013 35.3456 28.2000 43.7800 27.2500 40.4160 45.59%
2012 23.0092 17.2700 28.5400 17.0600 27.7600 62.24%
2011 20.6717 21.8700 25.9200 15.1200 17.1100 -21.87%
2010 24.3201 21.6100 29.9900 19.2200 21.9000 0.78%
2009 21.0281 19.2000 26.2400 14.2000 21.7300 10.36%
2008 32.9256 30.9600 44.0000 15.9700 19.6900 -36.34%
2007 23.7244 19.4700 32.1800 18.6500 30.9300 64.08%
2006 14.8112 10.2625 19.5200 10.2625 18.8500 83.28%
2005 9.4285 9.5000 12.5000 7.5650 10.2850 7.16%
2004 9.4794 10.8225 11.3973 7.7600 9.5975 -11.95%
2003 8.0554 7.0050 11.0475 5.3400 10.9000 62.02%
2002 6.3286 7.1375 8.5000 3.7925 6.7275 -9.73%
2001 6.8590 4.0000 9.6250 4.0000 7.4525 74.07%
2000 4.1865 4.1563 5.5313 3.1875 4.2813 0.74%
1999 4.8144 8.1563 8.2500 3.0000 4.2500 -49.25%
Sector Industry Market Cap Revenue
Medical Medical Services $11.456B $8.282B
ICON plc is a global full service clinical research organisation. The company provides contract clinical research services to the pharmaceutical industry worldwide.
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