What Changed
Price Move History
- Daily moves over 5%
- 26 252 sessions, September 12, 2025 to September 14, 2026
- Largest daily move
- -39.9% close of February 12, 2026
- 1-year change
- -3.5% closing prices, September 12, 2025 to September 14, 2026
- 5-year change
- -36.3% closing prices, September 14, 2021 to September 14, 2026
Company Description
ICON plc (NASDAQ: ICLR) is a clinical research organisation operating in the professional, scientific, and technical services sector. The company focuses on research and development in biotechnology and related areas, supporting the development of medicines and health technologies. According to company disclosures, ICON describes itself as a world‑leading clinical research organisation powered by healthcare intelligence, with headquarters in Dublin, Ireland.
ICON states that it advances clinical research "from molecule to medicine" by providing outsourced services to pharmaceutical, biotechnology, medical device, government and public health organisations. These activities place ICON within the contract research organisation (CRO) industry, where it supports customers in planning and running clinical development programmes and related research services.
The company’s public communications highlight that it provides clinical research services on an outsourced basis. While detailed segment breakdowns are not provided in the supplied materials, ICON reports that the vast majority of its revenue comes from clinical research activities, and that it also offers ancillary services such as laboratory and imaging capabilities. These services are directed toward helping customers progress emerging therapies and improve patient outcomes.
ICON emphasises the role of healthcare intelligence in its operations. In its news releases, the company describes itself as a healthcare intelligence and clinical research organisation, indicating a focus on data, analytics and evidence generation in support of clinical trials and development decisions. This positioning aligns with its role in supporting complex research programmes for life sciences and public health customers.
The company is headquartered in Dublin, Ireland, and reports operations across numerous locations and countries, reflecting a global footprint. In its public statements, ICON notes that it has tens of thousands of employees and operates in dozens of countries and locations, underscoring the scale of its clinical research network. This global presence supports its ability to conduct studies and provide services across multiple regions and therapeutic areas.
ICON’s shares trade on NASDAQ under the ticker symbol ICLR, and the company files reports with the U.S. Securities and Exchange Commission as a foreign private issuer, using Form 20‑F as indicated in its Form 6‑K filings. Regular current reports on Form 6‑K provide updates on financial results, guidance, conference participation, and other corporate developments.
In company news and filings, ICON highlights its participation in healthcare and investor conferences, its financial reporting for quarterly periods, and its governance processes such as annual general meetings. These disclosures illustrate an ongoing focus on investor communication, financial transparency and engagement with the broader healthcare and capital markets communities.
ICON has also been referenced in an independent industry benchmarking report as a top‑performing CRO for phase 1 clinical trials. The report cited in company news found that ICON outpaced the average phase 1 performance scores of other large CROs across a range of operational metrics and sponsor satisfaction measures, and noted that ICON had outperformed the weighted average performance scores of other large CROs in phase 1 clinical trials for multiple consecutive years. This external assessment reflects how ICON’s early‑phase clinical research capabilities are perceived by surveyed industry professionals.
Financial press releases included in the company’s current reports describe ICON’s use of both GAAP and non‑GAAP measures, such as adjusted EBITDA, adjusted net income and adjusted diluted earnings per share. The company explains that these non‑GAAP metrics exclude items such as amortization, stock compensation, foreign exchange gains and losses, restructuring, transaction‑related and integration‑related adjustments, goodwill impairment and related tax effects, and that they are provided for historical comparison purposes.
ICON’s balance sheet and cash flow statements, as presented in its interim financial information, show that the company utilises bank credit lines, loan facilities and senior secured notes as part of its capital structure. It also reports goodwill and intangible assets, reflecting past acquisitions and the value of customer relationships, trade names, technology‑based intangible assets and order or production backlog, as referenced in its XBRL‑tagged disclosures.
Overall, ICON plc positions itself as a global clinical research organisation serving pharmaceutical, biotechnology, medical device, government and public health customers. Through outsourced clinical research services, healthcare intelligence and supporting capabilities such as laboratory and imaging services, the company aims to advance emerging therapies from early research stages toward approved medicines while providing detailed financial and operational information to investors through its SEC filings and public news releases.
Stock Performance
Icon Plc (ICLR) closed at $168.93 on September 14, 2026. Over the past 12 months, the price has lost 3.5%.
ICLR Metrics & Rankings
Price returns through September 14, 2026. Month-to-date and YTD include the first trading day. Ranking links may use different dates.
Latest News
Icon Plc has 10 recent news articles. Of the recent coverage, 5 articles coincided with positive price movement and 5 with negative movement. Key topics include private placement, offering, earnings, partnership, AI. View all ICLR news →
SEC Filings
Icon Plc has filed 5 recent SEC filings, including 3 Form 6-K, 1 Form 4, 1 Form SCHEDULE 13G/A. The most recent filing was submitted on September 9, 2026. SEC filings provide transparency into a company's financial condition, material events, and regulatory compliance. View all ICLR SEC filings →
Insider Radar
Insider selling at Icon Plc over the past 90 days can reflect routine portfolio management, scheduled trading plans (Rule 10b5-1), tax planning, or compensation-related dispositions rather than a directional view on the stock.
Financial Highlights
Icon Plc generated $8.3B in revenue in FY2025, retaining a 26.4% gross margin, operating income reached $442.8M (5.4% operating margin), and net income was $229.3M, reflecting a 2.8% net profit margin. Diluted earnings per share stood at $2.90. The company generated $1.0B in operating cash flow. With a current ratio of 1.10, the company maintains adequate short-term liquidity.
Upcoming Events
Short Interest History
Short interest in Icon Plc (ICLR) currently stands at 2.2 million shares, down 0.1% from the previous reporting period, representing 3.1% of the float. Since September 2025, short interest has decreased by 22.1%. This relatively low short interest suggests limited bearish sentiment.
Days to Cover History
Days to cover for Icon Plc (ICLR) currently stands at 3.5 days, up 50.6% from the previous period. This days-to-cover ratio represents a balanced liquidity scenario for short positions. The days to cover has increased 58.2% over the past year, indicating either rising short interest or declining trading volume. The ratio has shown significant volatility over the period, ranging from 1.0 to 4.3 days.
ICLR Company Profile & Sector Positioning
Icon Plc (ICLR) operates in the Diagnostics & Research industry within the broader Healthcare sector and is listed on the NASDAQ.
Investors comparing ICLR often look at related companies in the same sector, including Medpace Holdings, Inc. (MEDP), PERKINELMER INC (PKI), Illumina Inc (ILMN), Waters Corp (WAT), and Quest Diagnostics Inc. (DGX). Comparing financial metrics, valuation ratios, and stock performance across these peers can help investors evaluate ICLR's relative position within its industry.