Stocks › ICLR

ICON PLC

ICLR·Nasdaq·Ireland Ireland·USD
$164.08
+2.39 (+1.48%)
Close · Oct 7, 2026 · Close Prices from Tiingo.com
ICLR
ICON PLC · Nasdaq
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
ICLRS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
Loading price history…
Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair

Congressional Trades

Recent trades of ICLR by members of U.S. Congress · 26 on record · 3 in the last 12 months
All congressional trades →
PoliticianStockTypeFiledTraded
Kevin HernKevin HernHouse · R · OK ICLRICON PLC · Stock Sale
$15,001 - $50,000
Sep 1, 2026 Aug 14, 2026 Filing ↗
Kevin HernKevin HernHouse · R · OK ICLRICON PLC · Stock Sale
$100,001 - $250,000
Apr 3, 2026 Mar 5, 2026 Filing ↗
Julia LetlowJulia LetlowHouse · R · LA ICLRICON PLC · Stock Sale
$1,001 - $15,000
Mar 12, 2026 Feb 12, 2026 Filing ↗
John JamesJohn JamesHouse · R · MI ICLRICON PLC · Stock Sale
$1,001 - $15,000
Sep 6, 2024 Sep 4, 2024 Filing ↗
John JamesJohn JamesHouse · R · MI ICLRICON PLC · Stock Purchase
$1,001 - $15,000
Sep 2, 2024 Jun 12, 2024 Filing ↗
Kevin HernKevin HernHouse · R · OK ICLRICON PLC · Stock Sale
$1,001 - $15,000
Feb 14, 2023 Jan 31, 2023 Filing ↗
Kevin HernKevin HernHouse · R · OK ICLRICON PLC · Stock Purchase
$15,001 - $50,000
Oct 7, 2021 Sep 2, 2021 Filing ↗
Kevin HernKevin HernHouse · R · OK ICLRICON PLC · Stock Purchase
$100,001 -
Jun 15, 2021 May 18, 2021 Filing ↗
Kevin HernKevin HernHouse · R · OK ICLRICON PLC · Stock Purchase
$1,001 - $15,000
Aug 15, 2020 Jul 27, 2020 Filing ↗
Kevin HernKevin HernHouse · R · OK ICLRICON PLC · Stock Purchase
$1,001 - $15,000
Dec 15, 2019 Nov 7, 2019 Filing ↗
Kevin HernKevin HernHouse · R · OK ICLRICON PLC · Stock Purchase
$50,001 - $100,000
Sep 16, 2019 Aug 7, 2019 Filing ↗
James B. RenacciJames B. RenacciHouse · R · OH ICLRICON PLC · Stock Sale
$1,001 - $15,000
Jun 7, 2017 May 25, 2017 Filing ↗
James B. RenacciJames B. RenacciHouse · R · OH ICLRICON PLC · Stock Purchase
$1,001 - $15,000
Dec 6, 2016 Nov 23, 2016 Filing ↗
Michael T. McCaulMichael T. McCaulHouse · R · TX ICLRICON PLC · Stock Sale
$1,001 - $15,000
Jul 15, 2016 Jun 23, 2016 Filing ↗
Michael T. McCaulMichael T. McCaulHouse · R · TX ICLRICON PLC · Stock Sale
$1,001 - $15,000
Jul 15, 2016 Jun 23, 2016 Filing ↗
Michael T. McCaulMichael T. McCaulHouse · R · TX ICLRICON PLC · Stock Sale
$1,001 - $15,000
Mar 18, 2016 Feb 2, 2016 Filing ↗
Michael T. McCaulMichael T. McCaulHouse · R · TX ICLRICON PLC · Stock Sale
$1,001 - $15,000
Mar 18, 2016 Feb 2, 2016 Filing ↗
Michael T. McCaulMichael T. McCaulHouse · R · TX ICLRICON PLC · Stock Sale
$1,001 - $15,000
Mar 18, 2016 Feb 18, 2016 Filing ↗
Michael T. McCaulMichael T. McCaulHouse · R · TX ICLRICON PLC · Stock Sale
$1,001 - $15,000
Mar 18, 2016 Feb 18, 2016 Filing ↗
Thomas MacArthurThomas MacArthurHouse · R · NJ ICLRICON PLC · Stock Sale
$1,001 - $15,000
Jun 7, 2015 May 27, 2015 Filing ↗
James B. RenacciJames B. RenacciHouse · R · OH ICLRICON PLC · Stock Sale
$1,001 - $15,000
Jan 26, 2015 Jan 8, 2015 Filing ↗
Michael T. McCaulMichael T. McCaulHouse · R · TX ICLRICON PLC · Stock Purchase
$1,001 - $15,000
Dec 22, 2014 Nov 12, 2014 Filing ↗
Michael T. McCaulMichael T. McCaulHouse · R · TX ICLRICON PLC · Stock Purchase
$1,001 - $15,000
Dec 22, 2014 Nov 12, 2014 Filing ↗
James B. RenacciJames B. RenacciHouse · R · OH ICLRICON PLC · Stock Sale
$1,001 - $15,000
Nov 10, 2014 Oct 23, 2014 Filing ↗
James B. RenacciJames B. RenacciHouse · R · OH ICLRICON PLC · Stock Sale
$1,001 - $15,000
Jun 4, 2014 May 22, 2014 Filing ↗

Whale Activity

Position changes in ICLR reported for 2026-06-30 by 20 tracked institutional filers
Increased: 5New: 1Decreased: 2Closed: 1No prior filing: 11
  • Increased5
  • New1
  • Held0
  • Decreased2
  • Closed1
  • No prior filing11
FilerSharesValueChange
Artisan Partners Limited Partnership8.6M$1.50B—
HARRIS ASSOCIATES L P4.5M$776.2M—
Ruane, Cunniff & Goldfarb L.P.2.0M$355.8M—
D. E. Shaw & Co., Inc.1.4M$235.7Mincreased
Stephens Investment Management Group LLC720.3K$125.1M—
BlackRock, Inc.534.9K$92.9Mincreased
Zurich Insurance Group Ltd/FI481.2K$83.6M—
Point72 Asset Management, L.P.365.9K$63.6Mincreased
Hyperion Capital Advisors LP224.7K$39.0M—
CITADEL ADVISORS LLC148.6K$25.8Mdecreased
MUHLENKAMP & CO INC66.3K$11.5M—
VANGUARD CAPITAL MANAGEMENT LLC62.8K$10.9Mincreased

KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.

Insider Trading

Net shares bought (+) or sold (−) on the open market by ICLR insiders, by quarter · Form 4
-25.0K-12.5K012.5K25.0K2025 Q1: 02025 Q12025 Q2: 02025 Q22025 Q3: 02025 Q32025 Q4: 02025 Q42026 Q1: 02026 Q12026 Q2: 02026 Q22026 Q3: -23.7K2026 Q32026 Q4: 02026 Q4

Recent Insider Transactions

37 transactions on record · newest first
All insider activity →
InsiderTypeSharesPriceValueDate
McCague Eugene PacelliDirector · Director Sale −3,255 $175.00 $570K Sep 17, 2026 Form 4 ↗
Murphy Ronan MartinDirector · Director Sale −5,005 $175.00 $876K Sep 17, 2026 Form 4 ↗
CLIMAX JOHN DRDirector · Director Sale −5,005 $175.00 $876K Sep 16, 2026 Form 4 ↗
Whitaker Anne ClemDirector · Director Sale −96 $163.77 $16K Aug 11, 2026 Form 4 ↗
Whitaker Anne ClemDirector · Director Sale −88 $162.72 $14K Aug 11, 2026 Form 4 ↗
Whitaker Anne ClemDirector · Director Sale −67 $165.51 $11K Aug 11, 2026 Form 4 ↗
Whitaker Anne ClemDirector · Director Sale −590 $164.47 $97K Aug 11, 2026 Form 4 ↗
O'Neill JulieDirector · Director Sale −95 $162.72 $15K Aug 11, 2026 Form 4 ↗
O'Neill JulieDirector · Director Sale −73 $165.51 $12K Aug 11, 2026 Form 4 ↗
O'Neill JulieDirector · Director Sale −642 $164.47 $106K Aug 11, 2026 Form 4 ↗
O'Neill JulieDirector · Director Sale −105 $163.77 $17K Aug 11, 2026 Form 4 ↗
Murray CiaranDirector · Director Sale −305 $163.77 $50K Aug 11, 2026 Form 4 ↗
Murray CiaranDirector · Director Sale −280 $162.72 $46K Aug 11, 2026 Form 4 ↗
Murray CiaranDirector · Director Sale −212 $165.51 $35K Aug 11, 2026 Form 4 ↗
Murray CiaranDirector · Director Sale −1,880 $164.47 $309K Aug 11, 2026 Form 4 ↗
Murphy Ronan MartinDirector · Director Sale −96 $163.77 $16K Aug 11, 2026 Form 4 ↗
Murphy Ronan MartinDirector · Director Sale −88 $162.72 $14K Aug 11, 2026 Form 4 ↗
Murphy Ronan MartinDirector · Director Sale −67 $165.51 $11K Aug 11, 2026 Form 4 ↗
Murphy Ronan MartinDirector · Director Sale −590 $164.47 $97K Aug 11, 2026 Form 4 ↗
McCague Eugene PacelliDirector · Director Sale −96 $163.77 $16K Aug 11, 2026 Form 4 ↗

Fund Holders

Mutual funds and ETFs holding ICLR · SEC Form N-PORT
FundSharesValue% of fundAs of
Invesco Small Cap Value Fund
AIM Sector Funds (Invesco Sector Funds)
1.0M$170.5M1.54%Jul 31, 2026
VANGUARD WINDSOR FUND
VANGUARD WINDSOR FUNDS
943.2K$154.3M0.61%Jul 31, 2026
VANGUARD HEALTH CARE FUND
VANGUARD SPECIALIZED FUNDS
933.7K$152.7M0.40%Jul 31, 2026
VANGUARD EXPLORER FUND827.9K$135.4M0.61%Jul 31, 2026
Invesco Comstock Fund
AIM Sector Funds (Invesco Sector Funds)
776.1K$126.9M0.85%Jul 31, 2026
Invesco Value Opportunities Fund
AIM Sector Funds (Invesco Sector Funds)
767.3K$125.5M1.38%Jul 31, 2026
International Equity Fund
Principal Funds, Inc
652.5K$106.7M1.65%Jul 31, 2026
FPA Crescent Fund
Investment Managers Series Trust III
382.1K$66.4M0.53%Jun 30, 2026
VANGUARD GROWTH AND INCOME FUND
VANGUARD QUANTITATIVE FUNDS
288.3K$50.1M0.27%Jun 30, 2026
BBH Partner Fund - International Equity
BBH Trust
264.8K$43.3M1.74%Jul 31, 2026

Mutual funds and ETFs whose N-PORT filings list ICLR's shares (CUSIP G4705A100), each fund at its latest report since Mar 8, 2026, largest positions first. Bonds, options and short positions are left out.

Activist & Passive Stakes

Schedule 13D / 13G beneficial-ownership filings
  • Invesco Ltd.SCHEDULE 13G/A · passive (13G) · 5.3M shares6.9%
    Aug 13, 2026 · ↗
  • Abigail P. JohnsonSCHEDULE 13G/A · passive (13G) · 5.3M shares6.9%
    Aug 6, 2026 · ↗
  • FMR LLCSCHEDULE 13G/A · passive (13G) · 5.3M shares6.9%
    Aug 6, 2026 · ↗
  • Allan Gray Australia Pty LtdSCHEDULE 13G/A · passive (13G) · 0 shares0.0%
    May 15, 2026 · ↗
  • ORBIS INVESTMENT MANAGEMENT LTDSCHEDULE 13G/A · passive (13G) · 0 shares0.0%
    May 15, 2026 · ↗
  • Wellington Management Company LLPSCHEDULE 13G/A · passive (13G) · 5.9M shares6.7%
    May 15, 2026 · ↗
  • Wellington Investment Advisors Holdings LLPSCHEDULE 13G/A · passive (13G) · 5.9M shares7.7%
    May 15, 2026 · ↗
  • Wellington Group Holdings LLPSCHEDULE 13G/A · passive (13G) · 5.9M shares7.7%
    May 15, 2026 · ↗
  • Wellington Management Group LLPSCHEDULE 13G/A · passive (13G) · 5.9M shares7.7%
    May 15, 2026 · ↗
  • Harris Associates, Inc.SCHEDULE 13G · passive (13G) · 4.4M shares5.7%
    May 15, 2026 · ↗

Corporate Lobbying

Estimated quarterly lobbying spending reported under the LDA, filings naming ICON PLC as client

No lobbying filings found naming ICON PLC as the client.

Government Contracts

Federal awards to icon · USAspending
$55KAwarded · 1 contract on record
  • Department of the InteriorRECONSTRUCTION AND IMPROVEMENT OF APPROXIMATELY 425 LINEAR FEET OF ACCESS AND SAFETY TRAILS, INCLUDING ASSOCIATED SITE PREPARATION, GRADING,$55K
    Aug 31, 2026 · ↗

U.S. Patents

Recent USPTO applications naming ICON PLC

No USPTO patent applications found for ICON PLC.

Annual Financials

From ICLR's 10-K filings · XBRL

No annual XBRL figures on record for ICLR. KeyVex's fundamentals cover about 130 large companies so far.

Stock Splits

Every split and reverse split in the price history
  • 2-for-1Stock splitAug 13, 2008
  • 2-for-1Stock splitOct 24, 2006

Split dates and ratios from the price history · Close Prices from Tiingo.com

Material Events (8-K)

Corporate events filed with the SEC

No 8-K filings on record.

About ICON PLC

From SEC EDGAR company records
Industry (SIC 8731)Services-Commercial Physical & Biological Research
SectorIndustrials
HeadquartersDUBLIN 18, Ireland
Former namesICON PLC /ADR/