ICLR: 6-K company filing

6-K 1 a6kagmfiling2026.htm 6-K Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2026 Commission File Number: 333-08704 ICON plc (Translation of registrant's name into English) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal executive offices) Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F. Form 20-F ☒ Form 40-F ☐ EXHIBIT LIST Exhibit Description 99.1 ICON plc Shareholders Letter and Notice of Annual General Meeting 99.2 Proxy Voting Card 99.3 ICON plc Consolidated IFRS Financial Statements 99.4 ICON plc Annual Report (IFRS) 99.5 ICON plc Annual Report (Form 20-F) SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ICON plc By: /s/ Nigel Clerkin Date: June 26, 2026 Name: Nigel Clerkin Title: Chief Financial Officer