0001950047-23-002632.txt : 20230731 0001950047-23-002632.hdr.sgml : 20230731 20230731173718 ACCESSION NUMBER: 0001950047-23-002632 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230731 DATE AS OF CHANGE: 20230731 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: ICON PLC CENTRAL INDEX KEY: 0001060955 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH [8731] IRS NUMBER: 981067160 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 333-08704 FILM NUMBER: 231128704 BUSINESS ADDRESS: STREET 1: SOUTH COUNTY BUSINESS PARK STREET 2: LEOPARDSTOWN CITY: DUBLIN 18 STATE: L2 ZIP: 00000 BUSINESS PHONE: 00 353 1 291 2000 MAIL ADDRESS: STREET 1: SOUTH COUNTY BUSINESS PARK STREET 2: LEOPARDSTOWN CITY: DUBLIN 18 STATE: L2 ZIP: 00000 FORMER COMPANY: FORMER CONFORMED NAME: ICON PLC /ADR/ DATE OF NAME CHANGE: 20010213 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: O'Leary Thomas Noel CENTRAL INDEX KEY: 0001973450 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: DUNCREVAN HOUSE STREET 2: DUNCREVAN CITY: KILDARE STATE: L2 ZIP: W23 VW6T 144 1 primary_doc.xml 144 0001973450 XXXXXXXX LIVE 0001060955 ICON PLC 333-08704 South County Business Park Leopardstown Dublin 18 L2 D18 X5R3 353-1-291-2000 THOMAS NOEL O LEARY Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 38th Floor New York NY 10004

3924 990993.64 82151049 07/31/2023 NASDAQ Common 07/31/2023 Exercise of options under a registered plan ICON PLC N 3924 07/31/2023 Cash Y 07/31/2023 /s/ Thomas Noel O'Leary