ICLR ICON PLC: institutional ownership and insider trading
466 funds reported holding $14.3B of ICON PLC in their latest 13F filings; in Q2 2026 funds net bought $486M, with 83 new positions and 80 funds selling out; over the last 12 months insiders bought $0 and sold $4.04M on the open market.
Famous investors holding ICLR
- Sequoia Fund (Ruane, Cunniff & Goldfarb): $356M, 5.5% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $242M, 0.1% of the portfolio
- Ken Griffin (Citadel Advisors): $50.3M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $15.4M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $834K, 0.0% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $782K, 0.0% of the portfolio
Largest institutional holders of ICLR
- Artisan Partners Limited Partnership — $1.50B
- WELLINGTON MANAGEMENT GROUP LLP — $924M
- FMR LLC — $916M
- Invesco Ltd. (IVZ) — $914M
- HARRIS ASSOCIATES L P — $776M
- Brave Warrior Advisors, LLC — $548M
- GREENHAVEN ASSOCIATES INC — $539M
- PRINCIPAL FINANCIAL GROUP INC (PFG) — $513M
- MASSACHUSETTS FINANCIAL SERVICES CO /MA/ — $369M
- Ruane, Cunniff & Goldfarb L.P. — $356M
Recent ICLR insider trades
- Sep 17, 2026: Murphy Ronan Martin sold 5,005 shares ($876K)
- Sep 17, 2026: McCague Eugene Pacelli sold 3,255 shares ($570K)
- Sep 16, 2026: Climax John Dr sold 5,005 shares ($876K)
- Aug 11, 2026: McCague Eugene Pacelli sold 841 shares ($138K)
Members of Congress trading ICLR
- Aug 14, 2026: Kevin Hern sold part of $15.0K–$50.0K
- Mar 5, 2026: Kevin Hern sold $100K–$250K
- Feb 12, 2026: Julia Letlow sold $1.00K–$15.0K
- Sep 4, 2024: John James sold $1.00K–$15.0K
- Jun 12, 2024: John James bought $1.00K–$15.0K
5%+ owners
- Wellington Management Group LLP: 7.7% (Schedule 13G/A, filed May 15, 2026)
- Invesco Ltd.: 6.9% (Schedule 13G/A, filed Aug 13, 2026)
- FMR LLC: 6.9% (Schedule 13G/A, filed Aug 6, 2026)
- HARRIS ASSOCIATES L P: 5.7% (Schedule 13G, filed May 15, 2026)