Form4insider filings, from the source

Company · CIK 0001060955 · SIC 8731 — Services-Commercial Physical & Biological Research · Nasdaq

ICON PLC · ICLR

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $4.0M · 12net −$4.0M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesAug 9Aug 15Aug 22Aug 29Sep 4Sep 11Sep 18

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 17, 2026 SForm 4 →Sep 18, 6:08 am EDTEugene Pacelli McCagueDirector3,255$175.00$569,6253,811−46.1%
Sep 17, 2026 MForm 4 →Sep 18, 6:08 am EDTEugene Pacelli McCagueDirector3,255$125.74$409,2847,066—
Sep 17, 2026 SForm 4 →Sep 18, 6:07 am EDTRonan Martin MurphyDirector5,005$175.00$875,8753,847−56.5%
Sep 17, 2026 MForm 4 →Sep 18, 6:07 am EDTRonan Martin MurphyDirector5,005$125.74$629,3298,852—
Sep 16, 2026 SForm 4 →Sep 18, 6:08 am EDTJohn Dr ClimaxDirector5,005$175.00$875,8752,087−70.6%
Sep 16, 2026 MForm 4 →Sep 18, 6:08 am EDTJohn Dr ClimaxDirector5,005$125.74$629,3297,092—
Aug 11, 2026 SForm 4 →Aug 12, 5:02 pm EDTAnne Clem WhitakerDirector841$164.29$138,168891−48.6%
Aug 11, 2026 SForm 4 →Aug 12, 5:01 pm EDTJulie O'NeillDirector915$164.29$150,3263,515−20.7%
Aug 11, 2026 SForm 4 →Aug 12, 5:00 pm EDTCiaran MurrayDirector2,677$164.29$439,80320,452−11.6%
Aug 11, 2026 SForm 4 →Aug 12, 5:00 pm EDTRonan Martin MurphyDirector841$164.29$138,1683,847−17.9%
Aug 11, 2026 SForm 4 →Aug 12, 4:59 pm EDTEugene Pacelli McCagueDirector841$164.29$138,1683,811−18.1%
Aug 11, 2026 SForm 4 →Aug 12, 4:47 pm EDTLinda GraisDirector841$164.29$138,1696,162−12.0%
Aug 11, 2026 SForm 4 →Aug 12, 4:47 pm EDTJohn Dr ClimaxDirector841$164.29$138,1682,087−28.7%
Aug 11, 2026 SForm 4 →Aug 12, 4:46 pm EDTNigel Bernard John ClerkinChief Financial Officer2,267$164.29$372,4455,881−27.8%
Aug 10, 2026 MForm 4 →Aug 12, 5:02 pm EDTAnne Clem WhitakerDirector1,732——1,732—
Aug 10, 2026 MForm 4 →Aug 12, 5:01 pm EDTJulie O'NeillDirector1,732——4,430—
Aug 10, 2026 MForm 4 →Aug 12, 5:00 pm EDTCiaran MurrayDirector2,677——23,129—
Aug 10, 2026 MForm 4 →Aug 12, 5:00 pm EDTRonan Martin MurphyDirector1,732——4,688—
Aug 10, 2026 MForm 4 →Aug 12, 4:59 pm EDTEugene Pacelli McCagueDirector1,732——4,652—
Aug 10, 2026 MForm 4 →Aug 12, 4:47 pm EDTLinda GraisDirector1,732——7,003—
Aug 10, 2026 MForm 4 →Aug 12, 4:47 pm EDTJohn Dr ClimaxDirector1,732——2,928—
Aug 10, 2026 MForm 4 →Aug 12, 4:46 pm EDTNigel Bernard John ClerkinChief Financial Officer4,293——8,148—
Aug 10, 2026 SForm 4 →Aug 11, 4:22 pm EDTBarry Edward BalfeChief Executive Officer, Director382$164.07$62,6764,804−7.37%
Aug 7, 2026 MForm 4 →Aug 11, 4:22 pm EDTBarry Edward BalfeChief Executive Officer, Director728——5,186—

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 17, 2026 MForm 4 →Sep 18, 6:08 am EDTEugene Pacelli McCagueDirector3,255——0—
Sep 17, 2026 MForm 4 →Sep 18, 6:07 am EDTRonan Martin MurphyDirector5,005——0—
Sep 16, 2026 MForm 4 →Sep 18, 6:08 am EDTJohn Dr ClimaxDirector5,005——0—
Aug 10, 2026 AMForm 4 →Aug 12, 5:02 pm EDTAnne Clem WhitakerDirector3,056——1,324—
Aug 10, 2026 AMForm 4 →Aug 12, 5:01 pm EDTJulie O'NeillDirector3,056——1,324—
Aug 10, 2026 AMForm 4 →Aug 12, 5:00 pm EDTCiaran MurrayDirector4,724——2,047—
Aug 10, 2026 AMForm 4 →Aug 12, 5:00 pm EDTRonan Martin MurphyDirector3,056——1,324—
Aug 10, 2026 AMForm 4 →Aug 12, 4:59 pm EDTEugene Pacelli McCagueDirector3,056——1,324—
Aug 10, 2026 AForm 4 →Aug 12, 4:48 pm EDTEmer LyonsChief Accounting Officer5,886——5,886—
Aug 10, 2026 AMForm 4 →Aug 12, 4:47 pm EDTLinda GraisDirector3,056——1,324—
Aug 10, 2026 AMForm 4 →Aug 12, 4:47 pm EDTJohn Dr ClimaxDirector3,056——1,324—
Aug 10, 2026 AMForm 4 →Aug 12, 4:46 pm EDTNigel Bernard John ClerkinChief Financial Officer23,250——4,793—
Aug 10, 2026 AForm 4 →Aug 12, 4:45 pm EDTKevin Francis EganDirector1,324——1,324—
Aug 10, 2026 AForm 4 →Aug 11, 4:27 pm EDTJeffrey Thomas ElliottDirector1,324——1,324—
Aug 7, 2026 AMForm 4 →Aug 11, 4:22 pm EDTBarry Edward BalfeChief Executive Officer, Director55,621——32,635—