ICLR / ICON Public Limited Company - Depositi SEC, Relazione annuale, dichiarazione di delega

ICON Public Limited Company
US ˙ NasdaqGS ˙ IE0005711209

Statistiche di base
LEI 6354008SRQGEMC4XFI67
CIK 1060955
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to ICON Public Limited Company
SEC Filings (Chronological Order)
Questa pagina fornisce un elenco completo e cronologico dei depositi SEC, esclusi i documenti di proprietà che forniamo altrove.
September 4, 2025 6-K

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 September 2025 (Commission file number) ICO

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 September 2025 333-08704 (Commission file number) ICON plc (Translation of registrant's name into English) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of pri

September 4, 2025 EX-99.1

ICON plc Confirms 2025 Financial Guidance

Exhibit 99.1 ICON plc Confirms 2025 Financial Guidance On September 4, 2025, ICON plc, announced that in connection with the CEO transition announcement earlier today, ICON confirms that there is no change to our financial guidance for the full year 2025. This statement contains forward-looking statements, including statements about our financial guidance. These statements are based on management'

September 4, 2025 EX-99.1

ICON Announces CEO Transition

Exhibit 99.1 ICON Announces CEO Transition Dublin, Ireland – 4 September 2025 – ICON plc (NASDAQ: ICLR), a world-leading clinical research organisation, today announced that Dr. Steve Cutler has informed the Board of his decision to retire as Chief Executive Officer and the Board has appointed Mr. Barry Balfe, ICON’s Chief Operating Officer, to succeed Dr. Cutler as Chief Executive Officer effecti

September 4, 2025 6-K

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 September 2025 (Commission file number) ICO

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 September 2025 333-08704 (Commission file number) ICON plc (Translation of registrant's name into English) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of pri

September 2, 2025 6-K

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 September 2025 (Commission file number) ICO

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 September 2025 333-08704 (Commission file number) ICON plc (Translation of registrant's name into English) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of pri

September 2, 2025 EX-99

ICON plc to Participate at Upcoming Investor Conferences

Exhibit 99.1 ICON plc to Participate at Upcoming Investor Conferences Dublin, Ireland, September 2, 2025 – ICON plc, (NASDAQ: ICLR) a world-leading clinical research organisation powered by healthcare intelligence, today announced that Mr. Barry Balfe, COO of ICON plc, will present at the Baird 2025 Global Healthcare Conference on Wednesday, September 10, 2025 at 1:25 pm ET and Dr. Steve Cutler, C

August 26, 2025 EX-99.1

EX-99.1

ICON plc Unaudited non-consolidated non-statutory interim financial statements For the period from 1 January 2025 to 7 August 2025 Registered number: 145835 ICON plc (unaudited non-consolidated non-statutory interim financial statements) Unaudited non-consolidated non-statutory interim financial statements (‘unaudited interim financial statements’) Contents Page Directors and other information 1 S

August 26, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of August 2025 (Commission file number) ICON plc (Transl

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of August 2025 333-08704 (Commission file number) ICON plc (Translation of Registrant's name into English) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal execut

August 12, 2025 EX-99.1

ICON plc Provides Update on Vaccine Study

Exhibit 99.1 ICON plc Provides Update on Vaccine Study On August 12, 2025, ICON plc, announced that the large-scale next generation COVID vaccine study that was highlighted on our earnings call on July 24, 2025 as restarted and actively enrolling, has now had a stop work notice issued by BARDA to the sponsor. As a result, the sponsor has directed ICON to halt all screening and dosing activities fo

August 12, 2025 6-K

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 August 2025 (Commission file number) ICON p

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 August 2025 333-08704 (Commission file number) ICON plc (Translation of registrant's name into English) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of princi

July 24, 2025 6-K

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 July 2025 (Commission file number) ICON plc

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 July 2025 333-08704 (Commission file number) ICON plc (Translation of registrant's name into English) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principa

July 24, 2025 EX-22.1

SUBSIDIARY GUARANTORS AND ISSUER OF GUARANTEED SECURITIES AND AFFILIATES WHOSE SECURITIES COLLATERALIZE SECURITIES OF ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY

Exhibit 22.1 SUBSIDIARY GUARANTORS AND ISSUER OF GUARANTEED SECURITIES AND AFFILIATES WHOSE SECURITIES COLLATERALIZE SECURITIES OF ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY The following subsidiaries of ICON plc, (the “Company”) are guarantors of ICON Investments Six Designated Activity Company’s (the “Issuer”) 5.809% Senior Secured Notes due 2027, 5.849% Senior Secured Notes due 2029 and 6

July 23, 2025 EX-99.1

ICON Announces Results of Annual General Meeting

Exhibit 99.1 ICON Announces Results of Annual General Meeting Dublin, Ireland, July 23, 2025 – ICON plc (NASDAQ: ICLR), a world-leading clinical research organisation powered by healthcare intelligence, today announced that all resolutions at the Annual General Meeting of the company (AGM) held on July 22, 2025 were duly passed by shareholders. These resolutions were set out in the Notice of the A

July 23, 2025 6-K

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 July 2025 (Commission file number) ICON plc

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 July 2025 333-08704 (Commission file number) ICON plc (Translation of registrant's name into English) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principa

July 23, 2025 6-K

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 July 2025 (Commission file number) ICON plc

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 July 2025 333-08704 (Commission file number) ICON plc (Translation of registrant's name into English) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principa

July 23, 2025 EX-99.1

ICON Reports Second Quarter 2025 Results

ICON Reports Second Quarter 2025 Results Highlights •Gross business wins in the quarter of $2,966 million, representing an increase of 10.

June 23, 2025 EX-99.1

ICON plc Schedules Second Quarter 2025 Earnings Conference Call

Exhibit 99.1 ICON plc Schedules Second Quarter 2025 Earnings Conference Call Dublin, Ireland, June 23, 2025 – ICON plc, (NASDAQ: ICLR) a world-leading clinical research organisation powered by healthcare intelligence, today announced that it will release its financial results for the second quarter 2025 after the market closes on Wednesday, July 23, 2025. The company will hold a conference call an

June 23, 2025 6-K

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 2025 (Commission file number) ICON plc

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 2025 333-08704 (Commission file number) ICON plc (Translation of registrant's name into English) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principa

June 18, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of June 2025 (Commission file number) ICON plc (Translat

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of June 2025 333-08704 (Commission file number) ICON plc (Translation of Registrant's name into English) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal executiv

June 18, 2025 EX-99.1

1

Exhibit 99.1 ICON plc Unaudited non-consolidated non-statutory interim financial statements For the period from 1 January 2025 to 5 June 2025 Registered number: 145835 ICON plc (unaudited non-consolidated non-statutory interim financial statements) Unaudited non-consolidated non-statutory interim financial statements (‘unaudited interim financial statements’) Contents Page Directors and other info

June 11, 2025 EX-99.1

Notice of Annual General Meeting to be held on 22 July 2025 ICON plc (the “Company” or “ICON”) THIS DOCUMENT IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION.

Exhibit 99.1 Notice of Annual General Meeting to be held on 22 July 2025 ICON plc (the “Company” or “ICON”) THIS DOCUMENT IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION. If you are in any doubt as to the action to be taken, you should consult with your independent financial adviser who, if you are taking advice in Ireland, is authorised or exempted under the European Communities (Markets in Fi

June 11, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of June 2025 (Commission file number) ICON plc (Translat

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of June 2025 333-08704 (Commission file number) ICON plc (Translation of Registrant's name into English) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal executiv

June 11, 2025 EX-99.2

Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLYTHIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATE

iconplc2025agmproxyvoti Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLYTHIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED.

June 11, 2025 EX-99.3

31 December 2024 31 December 2023 Change Other operating expenses excluding exceptional items ($'000) 1,212,972 1,347,694 (134,722) % of revenue 14.6 % 16.6 % (10.0 %) Other operating expenses including exceptional items ($'000) 1,334,669 1,437,260 (

Exhibit 99.3 ICON plc and Subsidiaries Consolidated Financial Statements Year ended 31 December 2024 Registered number: 145835 Directors’ Report and Consolidated Financial Statements Contents Page Directors’ and Other Information 2 Directors’ Report 3 Statement of Directors’ Responsibilities in respect of the Directors’ report and the financial statements 28 Independent Auditor’s Report to the mem

May 27, 2025 6-K

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 May 2025 (Commission file number) ICON plc

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 May 2025 333-08704 (Commission file number) ICON plc (Translation of registrant's name into English) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal

May 27, 2025 EX-99.1

ICON plc to Present at the William Blair 45th Annual Growth Stock Conference

Exhibit 99.1 ICON plc to Present at the William Blair 45th Annual Growth Stock Conference Dublin, Ireland, May 27, 2025 – ICON plc, (NASDAQ: ICLR) a world-leading clinical research organisation powered by healthcare intelligence, today announced that Dr. Steve Cutler, CEO of ICON plc, will present at the William Blair 45th Annual Growth Stock Conference on Wednesday, June 4, 2025 at 10.40 am CT. A

May 19, 2025 EX-99.1

ICON releases its ICON Cares 2024 Report

Exhibit 99.1 ICON releases its ICON Cares 2024 Report Dublin, Ireland – 19 May 2025 – ICON plc, (NASDAQ: ICLR) a world-leading clinical research organisation powered by healthcare intelligence, today releases its ICON Cares 2024 Report. The report outlines how the company is delivering on its environmental, social and governance (ESG) goals, as delivered through its ICON Cares program. In recognit

May 19, 2025 6-K

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 May 2025 (Commission file number) ICON plc

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 May 2025 333-08704 (Commission file number) ICON plc (Translation of registrant's name into English) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal

May 2, 2025 EX-22.1

SUBSIDIARY GUARANTORS AND ISSUER OF GUARANTEED SECURITIES AND AFFILIATES WHOSE SECURITIES COLLATERALIZE SECURITIES OF ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY

Exhibit 22.1 SUBSIDIARY GUARANTORS AND ISSUER OF GUARANTEED SECURITIES AND AFFILIATES WHOSE SECURITIES COLLATERALIZE SECURITIES OF ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY The following subsidiaries of ICON plc, (the “Company”) are guarantors of ICON Investments Six Designated Activity Company’s (the “Issuer”) 5.809% Senior Secured Notes due 2027, 5.849% Senior Secured Notes due 2029 and 6

May 2, 2025 6-K

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 April 2025 (Commission file number) ICON pl

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 April 2025 333-08704 (Commission file number) ICON plc (Translation of registrant's name into English) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of princip

April 30, 2025 6-K

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 April 2025 (Commission file number) ICON pl

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 April 2025 333-08704 (Commission file number) ICON plc (Translation of registrant's name into English) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of princip

April 30, 2025 EX-99.1

ICON Reports First Quarter 2025 Results

Exhibit 99.1 ICON Reports First Quarter 2025 Results Highlights •Net business wins in the quarter of $2,022 million; a net book to bill in the quarter of 1.01. •Closing backlog of $24.7 billion, an increase of 0.3% on quarter four 2024 and 6.0% on quarter one 2024. •Quarter one revenue was $2,001.3 million and quarter one adjusted EBITDA was $390.7 million or 19.5% of revenue. •GAAP net income for

March 31, 2025 EX-99.1

ICON plc Schedules First Quarter 2025 Earnings Conference Call

Exhibit 99.1 ICON plc Schedules First Quarter 2025 Earnings Conference Call Dublin, Ireland, March 31, 2025 – ICON plc, (NASDAQ: ICLR) a world-leading clinical research organisation powered by healthcare intelligence, today announced that it will release its financial results for the first quarter 2025 after the market closes on Wednesday, April 30, 2025. The company will hold a conference call an

March 31, 2025 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of March 2025 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of March 2025 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by

March 12, 2025 EX-99.1

1

Exhibit 99.1 ICON plc Unaudited non-consolidated non-statutory interim financial statements For the period from 1 January 2024 to 5 March 2025 Registered number: 145835 ICON plc (unaudited non-consolidated non-statutory interim financial statements) Unaudited non-consolidated non-statutory interim financial statements (‘unaudited interim financial statements’) Contents Page Directors and other inf

March 12, 2025 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of March 2025 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of March 2025 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by

March 5, 2025 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of March 2025 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of March 2025 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by

March 5, 2025 EX-99.1

ICON plc to Present at Upcoming Investor Conferences

Exhibit 99.1 ICON plc to Present at Upcoming Investor Conferences Dublin, Ireland, March 5, 2025 – ICON plc, (NASDAQ: ICLR) a world-leading clinical research organisation powered by healthcare intelligence, today announced that Dr. Steve Cutler, CEO of ICON plc, will present at the Leerink Partners Global Healthcare Conference on Wednesday, March 12, 2025 at 8.00 am ET and at the Barclays 27th Ann

March 3, 2025 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of March 2025 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of March 2025 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by

March 3, 2025 EX-99.1

ICON plc Provides Update on Vaccine Study

Exhibit 99.1 ICON plc Provides Update on Vaccine Study On March 3, 2025, ICON plc, announced that the large-scale next generation COVID vaccine study that was highlighted on our earnings call on February 20, 2025 as actively screening and moving forward as planned, has now also been delayed by the sponsor. Current information indicates a delay of 90 days, suggesting that the study will re-commence

February 21, 2025 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F (Mark One) ☐ Registration statement pursuant to Section 12(b) or (g) of the Securities Exchange Act of 1934 ☒ Annual report pursuant to Section 13 or 15 (d) of the Secu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F (Mark One) ☐ Registration statement pursuant to Section 12(b) or (g) of the Securities Exchange Act of 1934 OR ☒ Annual report pursuant to Section 13 or 15 (d) of the Securities Exchange Act of 1934 For the fiscal year ended: December 31, 2024 OR ☐ Transition report pursuant to Section 13 or 15(d) of the Securities E

February 21, 2025 EX-12.2

Certification Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 12.2 Certification Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of ICON plc (the "Company") on Form 20-F for the year ending December 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Nigel Clerkin, Chief Financial Officer of the Company, certif

February 21, 2025 EX-22.1

SUBSIDIARY GUARANTORS AND ISSUER OF GUARANTEED SECURITIES AND AFFILIATES WHOSE SECURITIES COLLATERALIZE SECURITIES OF ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY

Exhibit 22.1 SUBSIDIARY GUARANTORS AND ISSUER OF GUARANTEED SECURITIES AND AFFILIATES WHOSE SECURITIES COLLATERALIZE SECURITIES OF ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY The following subsidiaries of ICON plc, (the “Company”) are guarantors of ICON Investments Six Designated Activity Company’s (the “Issuer”) 5.809% Senior Secured Notes due 2027, 5.849% Senior Secured Notes due 2029 and 6

February 21, 2025 EX-12.1

Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.1 Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Nigel Clerkin, certify that: 1. I have reviewed this annual report on Form 20-F of ICON plc ("the registrant"). 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in lig

February 21, 2025 EX-2.2

Description of Securities Registered Under Section 12 of the Exchange Act

Exhibit 2.2 Description of Securities Registered Under Section 12 of the Exchange Act As of December 31, 2024 ICON plc (“we,” “us,” and “our”) had the following series of securities registered pursuant to Section 12(b) of the Exchange Act: Title of each class Trading symbol Name of each exchange on which registered Ordinary shares, nominal value €0.06 per share ICLR NASDAQ Global Select Market Ord

February 21, 2025 EX-11.1

ICON plc Share Trading Policy Adopted on 13th August 2013 and amended on 25th April 2017, 23rd April 2018,19th June 2021, 21st February 2023 and 18th February 2025

Exhibit 11.1 ICON plc Share Trading Policy Adopted on 13th August 2013 and amended on 25th April 2017, 23rd April 2018,19th June 2021, 21st February 2023 and 18th February 2025 This Share Trading Policy provides the standards of ICON plc and its Subsidiaries (together the “Group”, the “Company” or “ICON”) on trading and causing the trading of ICON’s securities or securities of other publicly-trade

February 21, 2025 EX-97

ICON plc Clawback Policy Adopted on 25 July 2023 and amended on 18 February 2025

Exhibit 97 ICON plc Clawback Policy Adopted on 25 July 2023 and amended on 18 February 2025 This Clawback Policy (this “Policy”) provides the standards for the recoupment of certain erroneously awarded executive compensation in the event of an accounting restatement due to the material noncompliance of ICON plc (“ICON”) with any reporting requirement under the securities laws.

February 21, 2025 EX-16.1

February 21, 2025

Exhibit 16.1 February 21, 2025 Securities and Exchange Commission Washington, D.C. 20549 Ladies and Gentlemen: We are currently principal accountants for ICON plc and, under the date of February 21, 2025, we reported on the consolidated financial statements of ICON plc as of and for the years ended December 31, 2024 and 2023 and the effectiveness of internal control over financial reporting as of

February 19, 2025 EX-99.1

ICON Reports Fourth Quarter and Full Year 2024 Results

Exhibit 99.1 ICON Reports Fourth Quarter and Full Year 2024 Results Highlights •Net business wins in the quarter of $2,413 million; a net book to bill in the quarter of 1.18. Full year net business wins of $9,974 million; a net book to bill of 1.20. •Closing backlog of $24.7 billion, an increase of 1.4% on quarter three 2024 and 8.3% on quarter four 2023. •Quarter four revenue of $2,041.1 million,

February 19, 2025 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of February 2025 ICON plc (Translation of registrant's name into Engli

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of February 2025 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate

January 29, 2025 EX-99.1

ICON plc Schedules Fourth Quarter and Full Year 2024 Earnings Conference Call

Exhibit 99.1 ICON plc Schedules Fourth Quarter and Full Year 2024 Earnings Conference Call Dublin, Ireland, January 29, 2025 – ICON plc, (NASDAQ: ICLR) a world-leading healthcare intelligence and clinical research organisation, today announced that it will release financial results for the fourth quarter and full year 2024 results after the market closes on Wednesday, February 19, 2025. The compan

January 29, 2025 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January 2025 ICON plc (Translation of registrant's name into Englis

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January 2025 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate b

January 14, 2025 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January 2025 ICON plc (Translation of registrant's name into Englis

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January 2025 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate b

January 14, 2025 EX-99.1

ICON Issues Financial Guidance for Full Year 2025

Exhibit 99.1 ICON Issues Financial Guidance for Full Year 2025 Highlights •Full year 2025 revenue guidance in the range of $8,050 - $8,650 million; midpoint of $8,350 million representing growth of approximately 1% over full year 2024 revenue guidance midpoint. •Full year 2025 adjusted earnings per share* guidance in the range of $13.00 - $15.00; midpoint of $14.00, flat over full year 2024 adjust

January 7, 2025 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January 2025 ICON plc (Translation of registrant's name into Englis

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January 2025 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate b

January 7, 2025 EX-99.1

ICON plc to Present at the 43rd Annual J.P. Morgan Healthcare Conference

Exhibit 99.1 ICON plc to Present at the 43rd Annual J.P. Morgan Healthcare Conference Dublin, Ireland, January 7, 2025 – ICON plc, (NASDAQ: ICLR) a world-leading healthcare intelligence and clinical research organisation, today announced that Dr. Steve Cutler, CEO of ICON plc, will present at the 43rd Annual J.P. Morgan Healthcare Conference on Tuesday, January 14, 2025 at 3.45pm PST. Any changes

December 18, 2024 EX-99.1

ICON Announces Appointment of Chief Operating Officer

Exhibit 99.1 ICON Announces Appointment of Chief Operating Officer Dublin, Ireland – 18 December 2024 – ICON plc (NASDAQ: ICLR), a world-leading healthcare intelligence and clinical research organisation, today announced the appointment of Barry Balfe as Chief Operating Officer (COO). Barry is a long-tenured ICON employee with over 20 years of service and brings extensive leadership experience and

December 18, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of December 2024 ICON plc (Translation of registrant's name into Engli

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of December 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate

November 13, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of November 2024 ICON plc (Translation of registrant's name into Engli

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of November 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate

November 13, 2024 EX-99.1

ICON plc to Present at the Jefferies London Healthcare Conference

EX-99.1 2 a202411pressrelease-jeffer.htm EX-99.1 Exhibit 99.1 ICON plc to Present at the Jefferies London Healthcare Conference Dublin, Ireland, November 13, 2024 – ICON plc, (NASDAQ: ICLR) a world-leading healthcare intelligence and clinical research organisation, today announced that Dr. Steve Cutler, CEO of ICON plc and Mr. Nigel Clerkin, CFO of ICON plc will present at the Jefferies London Hea

November 12, 2024 SC 13G/A

ICLR / ICON Public Limited Company / MASSACHUSETTS FINANCIAL SERVICES CO /MA/ - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4 )* ICON PLC (Name of Issuer) Common Stock (Title of Class of Securities) G4705A100 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate

October 25, 2024 EX-4.1

ICON plc 2013 Employees Restricted Share Unit Plan (as amended and restated effective as of 6th November, 2024)

Exhibit 4.1 ICON plc 2013 Employees Restricted Share Unit Plan (as amended and restated effective as of 6th November, 2024) 1.Purposes. The ICON plc 2013 Restricted Share Unit Plan, as amended and restated (the “Plan”) was originally established pursuant to a resolution of Directors dated 23rd April, 2013, was amended and restated pursuant to a resolution of Directors dated 24th April, 2015, and w

October 25, 2024 EX-FILING FEES

Calculation of Filing Fee Tables (Form Type) ICON PUBLIC LIMITED COMPANY (Exact name of registrant as specified in its charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Tables S-8 (Form Type) ICON PUBLIC LIMITED COMPANY (Exact name of registrant as specified in its charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Unit (2) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Ordinary Shares, EUR 0.

October 25, 2024 S-8

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ICON PUBLIC LIMITED COMPANY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ICON PUBLIC LIMITED COMPANY (Exact name of registrant as specified in its charter) Ireland 98-1067160 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) South County Business Park Leopardstown Dublin 18, Ireland (A

October 25, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 the month of October 2024 ICON plc (Translation of registrant's name into English) (

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of October 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal executive offices)

October 25, 2024 EX-22.1

SUBSIDIARY GUARANTORS AND ISSUER OF GUARANTEED SECURITIES AND AFFILIATES WHOSE SECURITIES COLLATERALIZE SECURITIES OF ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY

Exhibit 22.1 SUBSIDIARY GUARANTORS AND ISSUER OF GUARANTEED SECURITIES AND AFFILIATES WHOSE SECURITIES COLLATERALIZE SECURITIES OF ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY The following subsidiaries of ICON plc, (the “Company”) are guarantors of ICON Investments Six Designated Activity Company’s (the “Issuer”) 5.809% Senior Secured Notes due 2027, 5.849% Senior Secured Notes due 2029 and 6

October 23, 2024 EX-99.1

ICON Reports Third Quarter 2024 Results

Exhibit 99.1 ICON Reports Third Quarter 2024 Results Highlights •Net business wins in the quarter of $2,328 million. Reflects a net book to bill in the quarter of 1.15, and a trailing twelve month net book to bill of 1.21. •Closing backlog of $24.3 billion, an increase of 2.1% on quarter two 2024 and 9.4% on quarter three 2023. •Quarter three revenue of $2,030.0 million. Quarter three adjusted EBI

October 23, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of October 2024 ICON plc (Translation of registrant's name into Englis

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of October 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate b

September 27, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of September 2024 ICON plc (Translation of registrant's name into Engl

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of September 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate

September 27, 2024 EX-99.1

ICON plc Schedules Third Quarter 2024 Earnings Conference Call

Exhibit 99.1 ICON plc Schedules Third Quarter 2024 Earnings Conference Call Dublin, Ireland, September 27, 2024 – ICON plc (NASDAQ: ICLR), a world-leading healthcare intelligence and clinical research organization, today announced that it will release its financial results for the third quarter 2024 after the market closes on Wednesday, October 23, 2024. The company will hold a conference call and

September 3, 2024 EX-99.1

ICON plc to Present at the Baird 2024 Global Healthcare Conference

Exhibit 99.1 ICON plc to Present at the Baird 2024 Global Healthcare Conference Dublin, Ireland, September 3, 2024 – ICON plc, (NASDAQ: ICLR) a world-leading healthcare intelligence and clinical research organisation, today announced that Dr. Steve Cutler, CEO of ICON plc, will present at the Baird 2024 Global Healthcare Conference on Tuesday, September 10, 2024 at 3:45pm ET. Any changes to this e

September 3, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of September 2024 ICON plc (Translation of registrant's name into Engl

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of September 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate

August 14, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of August 2024 ICON plc (Translation of registrant's name into English

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of August 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by

August 14, 2024 EX-99.1

ICON Announces appointment of new Chief Financial Officer

Exhibit 99.1 ICON Announces appointment of new Chief Financial Officer Dublin, Ireland – 14th August 2024 – ICON plc (NASDAQ: ICLR), a world-leading healthcare intelligence and clinical research organisation, today announced the appointment of Nigel Clerkin as its new Chief Financial Officer (CFO). Nigel brings extensive experience and capability to the role of CFO. He commenced his career with KP

July 25, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 the month of July 2024 ICON plc (Translation of registrant's name into English) (Com

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of July 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal executive offices) Ind

July 25, 2024 EX-22.1

SUBSIDIARY GUARANTORS AND ISSUER OF GUARANTEED SECURITIES AND AFFILIATES WHOSE SECURITIES COLLATERALIZE SECURITIES OF ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY

EXHIBIT 22.1 SUBSIDIARY GUARANTORS AND ISSUER OF GUARANTEED SECURITIES AND AFFILIATES WHOSE SECURITIES COLLATERALIZE SECURITIES OF ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY The following subsidiaries of ICON plc, (the “Company”) are guarantors of ICON Investments Six Designated Activity Company’s (the “Issuer”) 5.809% Senior Secured Notes due 2027, 5.849% Senior Secured Notes due 2029 and 6

July 24, 2024 EX-99.1

ICON Reports Second Quarter 2024 Results

Exhibit 99.1 ICON Reports Second Quarter 2024 Results Highlights •Net business wins in the quarter of $2,579 million, an increase of 6.6% on quarter two 2023. Reflects a net book to bill in the quarter of 1.22, and a trailing twelve month net book to bill of 1.24. •Closing backlog of $23.8 billion, an increase of 2.0% on quarter one 2024 and 9.9% on quarter two 2023. •Quarter two revenue of $2,120

July 24, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of July 2024 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of July 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by c

July 24, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of July 2024 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of July 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by c

July 24, 2024 EX-99.1

ICON announces results of Annual General Meeting and changes to the Board of Directors

Exhibit 99.1 ICON announces results of Annual General Meeting and changes to the Board of Directors Dublin, Ireland, July 24, 2024 – ICON plc (NASDAQ: ICLR), a world-leading healthcare intelligence and clinical research organization, today announced that all resolutions at the Annual General Meeting of the company (AGM) held on July 23, 2024 were duly passed by shareholders. ICON also confirmed th

July 1, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of July 2024 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of July 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by c

July 1, 2024 EX-99.1

ICON plc Schedules Second Quarter 2024 Earnings Conference Call

Exhibit 99.1 ICON plc Schedules Second Quarter 2024 Earnings Conference Call Dublin, Ireland, July 1, 2024 – ICON plc (NASDAQ: ICLR), a world-leading healthcare intelligence and clinical research organization, today announced that it will release its financial results for the second quarter 2024 after the market closes on Wednesday, July 24, 2024. The company will hold a conference call and webcas

June 10, 2024 EX-99.5

EX-99.5

Form 20-F For the year ended December 31, 2023UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

June 10, 2024 EX-99.2

Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLYTHIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATE

Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLYTHIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED.

June 10, 2024 EX-99.4

EX-99.4

Registered number 145835 Annual Report 2023 ICON plc and Subsidiaries ICON plc and Subsidiaries Consolidated Financial Statements Year ended 31 December 2023 Registered number: 145835[This page intentionally left blank] Contents Page Directors’ and Other Information 2 Directors’ Report 3 Statement of Directors’ Responsibilities in respect of the Directors’ report and the financial statements 30 In

June 10, 2024 EX-99.3

31 December 2023 31 December 2022 Change Other operating expenses excluding exceptional items ($'000) 1,347,694 1,334,235 13,459 % of revenue excluding exceptional items 16.6 % 17.3 % 1.0 % Other operating expenses including exceptional items ($'000)

Exhibit 99.3 ICON plc and Subsidiaries Consolidated Financial Statements Year ended 31 December 2023 Registered number: 145835 Directors’ Report and Consolidated Financial Statements Contents Page Directors’ and Other Information 2 Directors’ Report 3 Statement of Directors’ Responsibilities in respect of the Directors’ report and the financial statements 30 Independent Auditor’s Report to the mem

June 10, 2024 EX-99.1

Notice of Annual General Meeting to be held on 23 July 2024 ICON plc (the “Company” or “ICON”) THIS DOCUMENT IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION.

Exhibit 99.1 Notice of Annual General Meeting to be held on 23 July 2024 ICON plc (the “Company” or “ICON”) THIS DOCUMENT IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION. If you are in any doubt as to the action to be taken, you should consult with your independent financial adviser who, if you are taking advice in Ireland, is authorised or exempted under the European Communities (Markets in Fi

June 10, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of June 2024 ICON plc (Translation of Registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of June 2024 ICON plc (Translation of Registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by c

June 4, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of June 2024 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of June 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by c

June 4, 2024 EX-99.1

ICON plc to Present at the Jefferies Global Healthcare Conference

ICON plc to Present at the Jefferies Global Healthcare Conference Dublin, Ireland, June 4, 2024 – ICON plc, (NASDAQ: ICLR) a world-leading healthcare intelligence and clinical research organization, today announced that Dr.

May 30, 2024 EX-99.1

ICON Hosts Investor Day and Updates Full Year 2024 Financial Guidance

ICON Hosts Investor Day and Updates Full Year 2024 Financial Guidance Highlights •Accelerating mid-term financial outlook supported by positive market environment and strengthened, scaled offering.

May 30, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of May 2024 ICON plc (Translation of registrant's name into English) (

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of May 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by ch

May 20, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of May 2024 ICON plc (Translation of registrant's name into English) (

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of May 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by ch

May 20, 2024 EX-99.1

ICON plc to hold Investor Day Meeting on May 30, 2024

Exhibit 99.1 ICON plc to hold Investor Day Meeting on May 30, 2024 Dublin, Ireland, May 20, 2024 – ICON plc, (NASDAQ: ICLR) a world-leading healthcare intelligence and clinical research organisation, today announced that it will hold an Investor Day which will take place on Thursday, May 30, 2024 in New York City, starting at 10am ET. The event will include presentations from members of ICON’s exe

May 9, 2024 EX-99.1

ICON releases its ICON Cares 2023 Report

Exhibit 99.1 ICON releases its ICON Cares 2023 Report Dublin, Ireland – 9 May 2024 – ICON plc, (NASDAQ: ICLR) a world-leading healthcare intelligence and clinical research organisation, today releases its ICON Cares 2023 Report. This outlines how the company is delivering on its ESG, diversity, inclusion and belonging, and CSR goals, as delivered through its ICON Cares program. In recognition of i

May 9, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of May 2024 ICON plc (Translation of registrant's name into English) (

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of May 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by ch

May 8, 2024 EX-4.2

ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY, ICON PLC, EACH OF THE SUBSIDIARY GUARANTORS FROM TIME TO TIME PARTY HERETO, Citibank, N.A., as Trustee, CITIBANK, N.A., LONDON BRANCH, as Notes Collateral Agent FIRST SUPPLEMENTAL INDENTURE Dated as o

Exhibit 4.2 Execution Version ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY, ICON PLC, EACH OF THE SUBSIDIARY GUARANTORS FROM TIME TO TIME PARTY HERETO, Citibank, N.A., as Trustee, and CITIBANK, N.A., LONDON BRANCH, as Notes Collateral Agent FIRST SUPPLEMENTAL INDENTURE Dated as of May 8, 2024 to INDENTURE Dated as of May 8, 2024 5.809% SENIOR SECURED NOTES DUE 2027 5.849% SENIOR SECURED NOTES

May 8, 2024 EX-22.1

SUBSIDIARY GUARANTORS AND ISSUER OF GUARANTEED SECURITIES AND AFFILIATES WHOSE SECURITIES COLLATERALIZE SECURITIES OF ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY

Exhibit 22.1 SUBSIDIARY GUARANTORS AND ISSUER OF GUARANTEED SECURITIES AND AFFILIATES WHOSE SECURITIES COLLATERALIZE SECURITIES OF ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY The following subsidiaries of ICON plc, (the “Company”) are guarantors of ICON Investments Six Designated Activity Company’s (the “Issuer”) 5.809% Senior Secured Notes due 2027, 5.849% Senior Secured Notes due 2029 and 6

May 8, 2024 EX-5.5

May 8, 2024

Exhibit 5.5 60 Park Place Suite 404 Newark, NJ 07102 Telephone: 973-520-2300 Fax: 212-303-2754 www.lockelord.com May 8, 2024 DOCS Global, Inc. ‎79 T.W. Alexander Drive ‎4401 Research Commons, Suite 300 Durham, N.C.‎ 22709‎ Re: Registration Statement on Form F-3 Ladies and Gentlemen: We have acted as New Jersey counsel to DOCS Global, Inc., a New Jersey corporation (the “Company”) in connection wit

May 8, 2024 EX-5.3

EX-5.3

Exhibit 5.3

May 8, 2024 EX-1.1

Execution Version

Exhibit 1.1 Execution Version ICON Investments Six Designated Activity Company $ 750,000,000 5.809% Senior Secured Notes due 2027 $ 750,000,000 5.849% Senior Secured Notes due 2029 $ 500,000,000 6.000% Senior Secured Notes due 2034 Underwriting Agreement April 30, 2024 Citigroup Global Markets Inc. HSBC Securities (USA) Inc. J.P. Morgan Securities LLC Morgan Stanley & Co. LLC Santander US Capital

May 8, 2024 EX-5.4

May 8, 2024

Exhibit 5.4 May 8, 2024 ICON Investments Six Designated Activity Company South County Business Park, Leopardstown Dublin 18, D18 X5R3 Ireland ICON Investments Six Designated Activity Company $750,000,000 5.809% Senior Secured Notes due 2027 $750,000,000 5.849% Senior Secured Notes due 2029 $500,000,000 6.000% Senior Secured Notes due 2034 Ladies and Gentlemen: We have acted as special counsel to e

May 8, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 the month of May, 2024 ICON plc (Translation of registrant’s name into English) (Com

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of May, 2024 ICON plc (Translation of registrant’s name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal executive offices) Ind

May 8, 2024 EX-4.1

ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY ICON PLC Dated as of May 8, 2024 Citibank, N.A., as Trustee TABLE OF CONTENTS

Exhibit 4.1 Execution Version ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY and ICON PLC INDENTURE Dated as of May 8, 2024 Citibank, N.A., as Trustee TABLE OF CONTENTS Page Article 1 DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 1.01 Definitions 1 Section 1.02 Other Definitions 6 Section 1.03 Rules of Construction 6 Section 1.04 Incorporation by Reference of Trust Indenture Act 7 Article

May 2, 2024 EX-FILING FEES

Calculation of Filing Fee Tables

Exhibit 107 Calculation of Filing Fee Tables 424(b)(5) (Form Type) Issuer: ICON Investments Six Designated Activity Company Guarantors: ICON public limited company ICON Luxembourg S.

May 2, 2024 424B5

ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY $750,000,000 5.809% Senior Secured Notes due 2027 $750,000,000 5.849% Senior Secured Notes due 2029 $500,000,000 6.000% Senior Secured Notes due 2034

TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(5) Registration No. 333-278943 PROSPECTUS SUPPLEMENT (To prospectus dated April 26, 2024)   ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY $750,000,000 5.809% Senior Secured Notes due 2027 $750,000,000 5.849% Senior Secured Notes due 2029 $500,000,000 6.000% Senior Secured Notes due 2034 ICON Investments Six Designated Activity Company, a designate

May 1, 2024 FWP

ICON Investments Six Designated Activity Company Pricing Term Sheet $750,000,000 5.809% Senior Secured Notes due 2027 (the “2027 Notes”) $750,000,000 5.849% Senior Secured Notes due 2029 (the “2029 Notes”) $500,000,000 6.000% Senior Secured Notes due

Issuer Free Writing Prospectus, dated April 30, 2024 Filed Pursuant to Rule 433 under the Securities Act of 1933, as amended Supplementing the Preliminary Prospectus Supplement, dated April 26, 2024 Registration No.

April 30, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of April 2024 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of April 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by

April 30, 2024 EX-99.1

ICON Announces Pricing of USD 2 Billion Notes

Exhibit 99.1 ICON Announces Pricing of USD 2 Billion Notes Dublin, Ireland, April 30, 2024 – ICON plc (NASDAQ: ICLR) (“ICON”), a world-leading healthcare intelligence and clinical research organization, today announced the pricing of a USD 2 billion SEC-registered bond offering, consisting of $750,000,000 5.809% Senior Secured Notes due 2027, $750,000,000 5.849% Senior Secured Notes due 2029 and $

April 26, 2024 F-3ASR

As filed with the Securities and Exchange Commission on April 26, 2024

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on April 26, 2024 Registration No.

April 26, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 the month of April, 2024 ICON plc (Translation of registrant's name into English) (C

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of April, 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal executive offices) I

April 26, 2024 EX-FILING FEES

Calculation of Filing Fee Tables Form F-3 (Form Type) ICON public limited company ICON Investments Six Designated Activity Company ICON Luxembourg S.à r.l. PRA Health Sciences, Inc. ICON Clinical Research Limited ICON Global Treasury Unlimited Compan

Exhibit 107 Calculation of Filing Fee Tables Form F-3 (Form Type) ICON public limited company ICON Investments Six Designated Activity Company ICON Luxembourg S.

April 26, 2024 EX-4.1

ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY ICON PLC Dated as of [ ], 2024 Citibank, N.A., as Trustee TABLE OF CONTENTS

Exhibit 4.1 ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY and ICON PLC INDENTURE Dated as of [ ], 2024 Citibank, N.A., as Trustee TABLE OF CONTENTS Page Article 1 DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 1.01 Definitions 1 Section 1.02 Other Definitions 6 Section 1.03 Rules of Construction 6 Section 1.04 Divisions 7 Section 1.05 Incorporation by Reference of Trust Indenture Act 7 Ar

April 26, 2024 EX-22.1

SUBSIDIARY GUARANTORS AND ISSUER OF GUARANTEED SECURITIES AND AFFILIATES WHOSE SECURITIES COLLATERALIZE SECURITIES OF ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY

Exhibit 22.1 SUBSIDIARY GUARANTORS AND ISSUER OF GUARANTEED SECURITIES AND AFFILIATES WHOSE SECURITIES COLLATERALIZE SECURITIES OF ICON INVESTMENTS SIX DESIGNATED ACTIVITY COMPANY The following subsidiaries of ICON plc, (the “Company”) may guarantee the obligations of debt securities of ICON Investments Six Designated Activity Company: NAME OF SUBSIDIARY STATE OR OTHER JURISDICTION OF INCORPORATIO

April 26, 2024 EX-25.1

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OR A CORPORATION DESIGNATED TO ACT AS TRUSTEE Check if an application to determine eligibility of a Trustee Pursuant to

Exhibit 25.1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OR A CORPORATION DESIGNATED TO ACT AS TRUSTEE Check if an application to determine eligibility of a Trustee Pursuant to Section 305(b)(2) X CITIBANK, N.A. (Exact name of registrant as specified in its charter) 13-5266470 (I.R.S. employer Identification no.)

April 26, 2024 424B5

The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities nor are they soliciting an offer to buy the

TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(5) Registration No. 333-278943 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities nor are they soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permit

April 25, 2024 EX-99.1

THIRD AMENDMENT TO CREDIT AGREEMENT

THIRD AMENDMENT TO CREDIT AGREEMENT This THIRD AMENDMENT to the Credit Agreement referred to below, dated as of March 14, 2024 (this “Third Amendment”), by and among ICON LUXEMBOURG S.

April 25, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 the month of April, 2024 ICON plc (Translation of registrant's name into English) (C

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of April, 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal executive offices) I

April 24, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of April 2024 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of April 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by

April 24, 2024 EX-99.1

ICON Reports First Quarter 2024 Results

Exhibit 99.1 ICON Reports First Quarter 2024 Results Highlights •Net business wins in the quarter of $2,654 million; a net book to bill of 1.27, an increase of 9.9% on quarter one 2023. •Closing backlog of $23.4 billion, an increase of 2.5% on quarter four 2023 and 10.1% on quarter one 2023. •Quarter one revenue of $2,090.4 million representing an increase of 5.7% on prior year revenue and 5.4% on

April 3, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of April 2024 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of April 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by

April 3, 2024 EX-99.1

ICON Announces CFO Transition

Exhibit 99.1 ICON Announces CFO Transition Dublin, Ireland, April 3, 2024 – ICON plc (NASDAQ: ICLR), a world-leading healthcare intelligence and clinical research organization, today announced that Chief Financial Officer, Brendan Brennan, will leave his role at ICON in quarter four this year for a new opportunity outside of the CRO industry. Brendan has held the role since 2012 and will remain wi

March 25, 2024 EX-99.1

ICON plc Schedules First Quarter 2024 Earnings Conference Call

ICON plc Schedules First Quarter 2024 Earnings Conference Call Dublin, Ireland, March 25, 2024 – ICON plc (NASDAQ: ICLR), a world-leading healthcare intelligence and clinical research organization, today announced that it will release its financial results for the first quarter 2024 after the market closes on Wednesday, April 24, 2024.

March 25, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of March 2024 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of March 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by

February 26, 2024 EX-99.1

ICON plc to Present at Upcoming Investor Conferences

Exhibit 99.1 ICON plc to Present at Upcoming Investor Conferences Dublin, Ireland, February 26, 2024 – ICON plc, (NASDAQ: ICLR) a world-leading clinical research organization powered by healthcare intelligence, today announced that Mr. Brendan Brennan, CFO of ICON plc, will present at the TD Cowen 44th Annual Healthcare Conference on Tuesday, March 5, 2024 at 11:10am ET and Dr. Steve Cutler, CEO o

February 26, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of February 2024 ICON plc (Translation of registrant's name into Engli

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of February 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate

February 23, 2024 EX-12.1

Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.1 Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Brendan Brennan, certify that: 1. I have reviewed this annual report on Form 20-F of ICON plc ("the registrant"). 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in l

February 23, 2024 EX-16.1

February 23, 2024

Exhibit 16.1 February 23, 2024 Securities and Exchange Commission Washington, D.C. 20549 Ladies and Gentlemen: We are currently principal accountants for ICON plc and, under the date of February 23, 2024, we reported on the consolidated financial statements of ICON plc as of and for the years ended December 31, 2023 and 2022 and the effectiveness of internal control over financial reporting as of

February 23, 2024 EX-12.2

Certification Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 12.2 Certification Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of ICON plc (the "Company") on Form 20-F for the year ending December 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Brendan Brennan, Chief Financial Officer of the Company, cert

February 23, 2024 EX-2.2

Description of Securities Registered Under Section 12 of the Exchange Act

Exhibit 2.2 Description of Securities Registered Under Section 12 of the Exchange Act As of December 31, 2023 ICON plc (“we,” “us,” and “our”) had the following series of securities registered pursuant to Section 12(b) of the Exchange Act: Title of each class Trading symbol Name of each exchange on which registered Ordinary shares, nominal value €0.06 per share ICLR NASDAQ Global Select Market Ord

February 23, 2024 EX-97

ICON plc Clawback Policy Adopted on 25 July 2023

Exhibit 97 ICON plc Clawback Policy Adopted on 25 July 2023 This Clawback Policy (this “Policy”) provides the standards for the recoupment of certain erroneously awarded executive compensation in the event of an accounting restatement due to the material noncompliance of ICON plc (“ICON”) with any reporting requirement under the securities laws.

February 23, 2024 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C.20549 FORM 20-F (Mark One) ☐ Registration statement pursuant to Section 12(b) or (g) of the Securities Exchange Act of 1934 ☒ Annual report pursuant to Section 13 or 15 (d) of the Secur

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C.20549 FORM 20-F (Mark One) ☐ Registration statement pursuant to Section 12(b) or (g) of the Securities Exchange Act of 1934 OR ☒ Annual report pursuant to Section 13 or 15 (d) of the Securities Exchange Act of 1934 For the fiscal year ended: December 31, 2023 OR ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Ex

February 21, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of February 2024 ICON plc (Translation of registrant's name into Engli

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of February 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate

February 21, 2024 EX-99.1

ICON Reports Fourth Quarter and Full Year 2023 Results

Exhibit 99.1 ICON Reports Fourth Quarter and Full Year 2023 Results Highlights •Net business wins in the quarter of $2,531 million; a net book to bill of 1.22. Full year net business wins of $9,946 million; a net book to bill of 1.22. •Closing backlog of $22.8 billion, an increase of 2.4% on quarter three 2023 and an increase of 10.0% on quarter four 2022. •Quarter four revenue of $2,066.2 million

February 9, 2024 SC 13G/A

ICLR / ICON Public Limited Company / MASSACHUSETTS FINANCIAL SERVICES CO /MA/ - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3 )* ICON PLC (Name of Issuer) Common Stock (Title of Class of Securities) G4705A100 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate

January 30, 2024 SC 13G/A

ICLR / ICON Public Limited Company / WCM INVESTMENT MANAGEMENT, LLC - FORM SC 13G/A Passive Investment

SC 13G/A 1 formsc13ga.htm FORM SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 9)* ICON PLC (Name of Issuer) Common (Title of Class of Securities) G4705A100 (CUSIP Number) December 31, 2023 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pur

January 30, 2024 EX-99.1

ICON plc Schedules Fourth Quarter and Full Year 2023 Earnings Conference Call

Exhibit 99.1 ICON plc Schedules Fourth Quarter and Full Year 2023 Earnings Conference Call DUBLIN-(BUSINESS WIRE)-January 30, 2024-ICON plc, (NASDAQ: ICLR) a world-leading healthcare intelligence and clinical research organization, today announced that it will release its financial results for the fourth quarter and full year 2023 results after the market closes on Wednesday, February 21, 2024. Th

January 30, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January 2024 ICON plc (Translation of registrant's name into Englis

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate b

January 9, 2024 EX-99.1

ICON Issues Financial Guidance for Full Year 2024

Exhibit 99.1 ICON Issues Financial Guidance for Full Year 2024 Highlights Full Year 2024 Revenue guidance in the range of $8,400 - $8,800 million, representing growth of 3.2% – 8.1% over Full Year 2023 Revenue guidance midpoint. Full Year 2024 adjusted earnings per share1 guidance in the range of $14.50 - $15.30, representing growth of 13.5% – 19.8% over Full Year 2023 adjusted earnings per share

January 9, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January 2024 ICON plc (Translation of registrant's name into Englis

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate b

January 4, 2024 EX-99.1

ICON plc to Present at the 42nd Annual J.P. Morgan Healthcare Conference

Exhibit 99.1 ICON plc to Present at the 42nd Annual J.P. Morgan Healthcare Conference DUBLIN-(BUSINESS WIRE)-January 4, 2024-ICON plc, (NASDAQ: ICLR) a world-leading healthcare intelligence and clinical research organization, today announced that Dr. Steve Cutler, CEO of ICON plc, will present at the 42nd Annual J.P. Morgan Healthcare Conference on Tuesday, January 9, 2024 at 5:15pm PST/8.15pm EST

January 4, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January 2024 ICON plc (Translation of registrant's name into Englis

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January 2024 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate b

December 7, 2023 EX-99.1

ICON Secures Upgraded Credit Rating from Moody’s Investors Service

Exhibit 99.1 ICON Secures Upgraded Credit Rating from Moody’s Investors Service DUBLIN-(BUSINESS WIRE)-December 7, 2023-ICON plc (NASDAQ: ICLR), a world-leading healthcare intelligence and clinical research organization, today announced that Moody's Investors Service ("Moody's") upgraded all of ICON plc’s instrument ratings to Baa3 with a stable outlook. This reflects the stronger credit profile o

December 7, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of December 2023 ICON plc (Translation of registrant's name into Engli

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of December 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate

November 8, 2023 EX-99.1

ICON plc to Present at Upcoming Investor Conferences

Exhibit 99.1 ICON plc to Present at Upcoming Investor Conferences DUBLIN-(BUSINESS WIRE)-November 8, 2023-ICON plc, (NASDAQ: ICLR) a world-leading clinical research organization powered by healthcare intelligence, today announced that Mr. Brendan Brennan, CFO of ICON plc, will present at the Jefferies London Healthcare Conference on Tuesday, November 14, 2023 at 2:00pm GMT. Mr. Brendan Brennan wil

November 8, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of November 2023 ICON plc (Translation of registrant's name into Engli

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of November 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate

October 27, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 the month of October, 2023 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of October, 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal executive offices)

October 25, 2023 EX-99.1

ICON Reports Third Quarter 2023 Results

Exhibit 99.1 ICON Reports Third Quarter 2023 Results Highlights Net business wins in the quarter of $2,581 million; a net book to bill of 1.26 or 1.22 on a trailing twelve month basis and an increase of 10% on quarter three 2022. Closing backlog of $22.2 billion, an increase of 2.6% on quarter two 2023 and an increase of 10.0% on quarter three 2022. Quarter three revenue of $2,055.1 million repres

October 25, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of October 2023 ICON plc (Translation of registrant's name into Englis

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of October 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate b

October 12, 2023 EX-99.1

ICON Secures Upgraded Credit Rating from S&P Global Ratings

Exhibit 99.1 ICON Secures Upgraded Credit Rating from S&P Global Ratings DUBLIN-(BUSINESS WIRE)-October 12, 2023-ICON plc (NASDAQ: ICLR), a world-leading healthcare intelligence and clinical research organization, today announced that S&P Global Ratings (S&P) upgraded ICON to an investment grade credit rating of BBB- with a stable outlook, based on operating performance and deleveraging. S&P upgra

October 12, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of October 2023 ICON plc (Translation of registrant's name into Englis

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of October 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate b

September 21, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of September 2023 ICON plc (Translation of registrant's name into Engl

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of September 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate

September 21, 2023 EX-99.1

ICON plc Schedules Third Quarter 2023 Earnings Conference Call

Exhibit 99.1 ICON plc Schedules Third Quarter 2023 Earnings Conference Call DUBLIN-(BUSINESS WIRE)-September 21, 2023-ICON plc (NASDAQ: ICLR), a world-leading healthcare intelligence and clinical research organization, today announced that it will release its financial results for the third quarter 2023 after the market closes on Wednesday, October 25, 2023. The company will hold a conference call

September 6, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of September 2023 ICON plc (Translation of registrant's name into Engl

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of September 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate

September 6, 2023 EX-99.1

ICON plc to Present at the Baird Global Healthcare Conference

Exhibit 99.1 ICON plc to Present at the Baird Global Healthcare Conference DUBLIN-(BUSINESS WIRE)-September 6, 2023-ICON plc, (NASDAQ: ICLR) a world-leading clinical research organisation powered by healthcare intelligence, today announced that Dr. Steve Cutler, CEO of ICON plc, will present at the Baird Global Healthcare Conference on Wednesday, September 13, 2023 at 10:15 am ET. Any changes to t

July 28, 2023 EX-99.1

SECOND AMENDMENT TO CREDIT AGREEMENT

Exhibit 99.1 SECOND AMENDMENT TO CREDIT AGREEMENT This SECOND AMENDMENT to the Credit Agreement referred to below, dated as of May 2, 2023 (this “Second Amendment”), by and among ICON LUXEMBOURG S.À R.L., a société à responsabilité limitée incorporated and existing under Luxembourg law, having its registered office at 61, rue de Rollingergrund, L-2440, Luxembourg and registered with the Luxembourg

July 28, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 the month of July, 2023 ICON plc (Translation of registrant's name into English) (Co

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of July, 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal executive offices) In

July 26, 2023 EX-99.1

ICON Reports Second Quarter 2023 Results

Exhibit 99.1 ICON Reports Second Quarter 2023 Results Highlights Net business wins in the quarter of $2,419 million; a net book to bill of 1.20 or 1.21 on a trailing twelve month basis. Closing backlog of $21.7 billion, an increase of 2.2% on quarter one 2023 or an increase of 8.5% on quarter two 2022. Quarter two revenue of $2,020.3 million representing an increase of 4.4% on prior year revenue a

July 26, 2023 EX-99.1

ICON Shareholders Vote in Favour of All Resolutions at its Annual General Meeting

Exhibit 99.1 ICON Shareholders Vote in Favour of All Resolutions at its Annual General Meeting DUBLIN-(BUSINESS WIRE)-July 26, 2023-ICON plc (NASDAQ: ICLR) (“ICON”), a world-leading healthcare intelligence and clinical research organisation, today announced that all resolutions at the Annual General Meeting of the Company (AGM) held on July 25, 2023 (which resolutions had all been recommended by t

July 26, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of July 2023 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of July 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by c

July 26, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of July 2023 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of July 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by c

July 5, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of July 2023 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of July 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by c

July 5, 2023 EX-99.1

ICON plc Annual General Meeting of Shareholders to be held on July 25, 2023 Supplemental Information

Exhibit 99.1 ICON plc Annual General Meeting of Shareholders to be held on July 25, 2023 Supplemental Information July 5, 2023 To the Shareholders of ICON plc, On June 12, 2023, ICON plc (the “Company” or “ICON”) issued Notice (the “AGM Notice”) of its Annual General Meeting of Shareholders (the “AGM”) on Form 6-K with the Securities and Exchange Commission (“SEC”). The AGM will be held on July 25

June 27, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of June 2023 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of June 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by c

June 27, 2023 EX-99.1

ICON plc Schedules Second Quarter 2023 Earnings Conference Call

Exhibit 99.1 ICON plc Schedules Second Quarter 2023 Earnings Conference Call DUBLIN-(BUSINESS WIRE)-June 27, 2023-ICON plc (NASDAQ: ICLR), a world-leading healthcare intelligence and clinical research organization, today announced that it will release its financial results for the second quarter 2023 after the market closes on Wednesday, July 26, 2023. The company will hold a conference call and w

June 26, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of June 2023 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of June 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by c

June 26, 2023 EX-99.1

ICON plc Set to Join Russell 3000® Index

Exhibit 99.1 ICON plc Set to Join Russell 3000® Index DUBLIN-(BUSINESS WIRE)-June 26, 2023-ICON plc, (NASDAQ: ICLR), is set to join the broad-market Russell 3000® Index at the conclusion of the 2023 Russell indexes annual reconstitution, effective after the US market opens today, Monday, June 26. Annual Russell indexes reconstitution captures the 4,000 largest US stocks as of April 28, ranking the

June 12, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of June 2023 ICON plc (Translation of Registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of June 2023 ICON plc (Translation of Registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by c

June 12, 2023 EX-99.3

Year Ended 31 December (dollars in thousands) 2022 2021 Change Other operating expenses (excluding exceptional items) $ 1,334,235 $ 900,455 $ 433,780 % of revenue (excluding exceptional items) 17.3 % 16.5 % 48.2 % Other operating expenses (including

Exhibit 99.3 ICON plc and Subsidiaries Consolidated Financial Statements Year ended 31 December 2022 Registered number 145835 Directors’ Report and Consolidated Financial Statements Contents Page Directors’ and Other Information 2 Directors’ Report 3 Statement of Directors’ Responsibilities in respect of the Directors’ report and the financial statements 28 Independent Auditor’s Report to the memb

June 12, 2023 EX-99.2

Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLYTHIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATE

iconplcprxyxgt20xp95925 Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLYTHIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED.

June 12, 2023 EX-99.1

Notice of Annual General Meeting to be held on 25 July 2023 ICON plc (the “Company” or “ICON”) THIS DOCUMENT IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION.

Exhibit 99.1 Notice of Annual General Meeting to be held on 25 July 2023 ICON plc (the “Company” or “ICON”) THIS DOCUMENT IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION. If you are in any doubt as to the action to be taken, you should consult with your independent financial adviser who, if you are taking advice in Ireland, is authorised or exempted under the European Communities (Markets in Fi

June 12, 2023 EX-99.5

EX-99.5

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C.20549 FORM 20-F (Mark One) Registration statement pursuant to Section 12(b) or (g) of the Securities Exchange Act of 1934 OR Annual report pursuant to Section 13 or 15 (d) of the Securities Exchange Act of 1934 For the fiscal year ended: December 31, 2022 OR Transition report pursuant to Section 13 or 15(d) of the Securities Exchange

June 12, 2023 EX-99.4

EX-99.4

Registered number 145835 Annual Report 2022 ICON plc and Subsidiaries Clinical Research.

May 31, 2023 EX-99.1

ICON plc to Attend Upcoming Investor Conferences

Exhibit 99.1 ICON plc to Attend Upcoming Investor Conferences DUBLIN-(BUSINESS WIRE)-May 31, 2023-ICON plc, (NASDAQ: ICLR) a world-leading clinical research organisation powered by healthcare intelligence, today announced that Dr. Steve Cutler, CEO of ICON plc, will present at the William Blair 43rd Annual Growth Stock Conference on Tuesday, June 6, 2023 at 2:40pm CT and Mr. Brendan Brennan, CFO o

May 31, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of May 2023 ICON plc (Translation of registrant's name into English) (

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of May 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by ch

May 16, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of May 2023 ICON plc (Translation of registrant's name into English) (

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of May 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by ch

May 16, 2023 EX-99.1

ICON releases its 2022 ICON Cares ESG Report

Exhibit 99.1 ICON releases its 2022 ICON Cares ESG Report DUBLIN-(BUSINESS WIRE)-May 16, 2023-ICON plc, (NASDAQ: ICLR) a world-leading healthcare intelligence and clinical research organisation, today releases its ICON Cares 2022 Environmental, Social and Governance (ESG) Report. The company’s ICON Cares initiative incorporates its ESG, Diversity, Inclusion and Belonging and Corporate Social Respo

April 28, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 the month of April, 2023 ICON plc (Translation of registrant's name into English) (C

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of April, 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal executive offices) I

April 26, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of April 2023 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of April 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by

April 26, 2023 EX-99.1

ICON Reports First Quarter 2023 Results

Exhibit 99.1 ICON Reports First Quarter 2023 Results Highlights Net business wins in the quarter of $2,415 million; a net book to bill of 1.22. Closing backlog of $21.2 billion, an increase of 2.4% on quarter four 2022 or an increase of 8.4% on quarter one 2022. First quarter revenue of $1,978.6 million representing an increase of 4.0% on prior year revenue and 5.3% on a constant currency organic

March 29, 2023 EX-99.1

ICON plc Schedules First Quarter 2023 Earnings Conference Call

Exhibit 99.1 ICON plc Schedules First Quarter 2023 Earnings Conference Call DUBLIN-(BUSINESS WIRE)-March 29, 2023-ICON plc (NASDAQ: ICLR), a world-leading healthcare intelligence and clinical research organization, today announced that it will release its financial results for the first quarter 2023 after the market closes on Wednesday, April 26, 2023. The company will hold a conference call and w

March 29, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of March 2023 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of March 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate by

February 27, 2023 EX-99.1

ICON plc to Present at Upcoming Investor Conferences

Exhibit 99.1 ICON plc to Present at Upcoming Investor Conferences DUBLIN-(BUSINESS WIRE)-February 27, 2023-ICON plc, (NASDAQ: ICLR) a world-leading clinical research organisation powered by healthcare intelligence, today announced that Mr. Brendan Brennan, CFO of ICON plc, will present at the 2023 Citi Healthcare Conference on Thursday, March 2, 2023 at 2pm ET. Dr. Steve Cutler, CEO of ICON plc, w

February 27, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of February 2023 ICON plc (Translation of registrant's name into Engli

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of February 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate

February 24, 2023 EX-12.1

Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.1 Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Brendan Brennan, certify that: 1. I have reviewed this annual report on Form 20-F of ICON plc ("the registrant"). 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in l

February 24, 2023 EX-2.2

Description of Securities Registered Under Section 12 of the Exchange Act

Exhibit 2.2 Description of Securities Registered Under Section 12 of the Exchange Act As of December 31, 2022 ICON plc (“we,” “us,” and “our”) had the following series of securities registered pursuant to Section 12(b) of the Exchange Act: Title of each class Trading symbol Name of each exchange on which registered Ordinary shares, nominal value €0.06 per share ICLR NASDAQ Global Select Market Ord

February 24, 2023 EX-2.5

FIRST AMENDMENT TO CREDIT AGREEMENT

Exhibit 2.5 FIRST AMENDMENT TO CREDIT AGREEMENT This FIRST AMENDMENT to the Credit Agreement referred to below, dated as of November 29, 2022 (this “First Amendment”) by and among ICON PUBLIC LIMITED COMPANY, an Irish public limited company (“Holdings”), and CITIBANK, N.A., as Administrative Agent (the “Administrative Agent”). Capitalized terms not otherwise defined in this First Amendment have th

February 24, 2023 EX-12.2

Certification Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 12.2 Certification Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of ICON plc (the "Company") on Form 20-F for the year ending December 31, 2022 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Brendan Brennan, Chief Financial Officer of the Company, cert

February 24, 2023 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C.20549 FORM 20-F (Mark One) ☐ Registration statement pursuant to Section 12(b) or (g) of the Securities Exchange Act of 1934 ☒ Annual report pursuant to Section 13 or 15 (d) of the Secur

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C.20549 FORM 20-F (Mark One) ☐ Registration statement pursuant to Section 12(b) or (g) of the Securities Exchange Act of 1934 OR ☒ Annual report pursuant to Section 13 or 15 (d) of the Securities Exchange Act of 1934 For the fiscal year ended: December 31, 2022 OR ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Ex

February 22, 2023 EX-99.1

ICON Reports Fourth Quarter and Full Year 2022 Results

Exhibit 99.1 ICON Reports Fourth Quarter and Full Year 2022 Results Highlights Net business wins in the quarter of $2,350 million; a net book to bill of 1.20. Full year net business wins of $9,450 million; a net book to bill of 1.22. Closing backlog in the quarter of $20.7 billion, an increase of 2.4% on quarter three 2022 or an increase of 8.7% on quarter four 2021. Quarter four revenue of $1,962

February 22, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of February 2023 ICON plc (Translation of registrant's name into Engli

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of February 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate

February 10, 2023 SC 13G/A

ICLR / ICON PLC / WCM INVESTMENT MANAGEMENT, LLC - FORM SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 8)* ICON PLC (Name of Issuer) Common (Title of Class of Securities) G4705A100 (CUSIP Number) December 31, 2022 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [

February 8, 2023 SC 13G/A

ICLR / ICON PLC / MASSACHUSETTS FINANCIAL SERVICES CO /MA/ - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* ICON PLC (Name of Issuer) Common Stock (Title of Class of Securities) G4705A100 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate

February 6, 2023 SC 13G/A

ICLR / ICON PLC / WELLINGTON MANAGEMENT GROUP LLP - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 6 )* ICON PLC (Name of Issuer) Common Stock (Title of Class of Securities) G4705A100 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate

January 26, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January 2023 ICON plc (Translation of registrant's name into Englis

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate b

January 26, 2023 EX-99.1

ICON plc Schedules Fourth Quarter 2022 Earnings Conference Call

Exhibit 99.1 ICON plc Schedules Fourth Quarter 2022 Earnings Conference Call DUBLIN-(BUSINESS WIRE)-January 26, 2023-ICON plc (NASDAQ: ICLR), a world-leading healthcare intelligence and clinical research organisation, today announced that it will release its financial results for the fourth quarter 2022 after the market closes on Wednesday, February 22, 2023. The company will hold a conference cal

January 10, 2023 EX-99.1

ICON Issues Financial Guidance for Full Year 2023

Exhibit 99.1 ICON Issues Financial Guidance for Full Year 2023 Highlights Full Year 2023 Revenue guidance in the range of $7,940 - $8,340 million, representing growth of 3.3% – 6.8% over Full Year 2022 Revenue guidance. Full Year 2023 adjusted earnings per share1 guidance in the range of $12.40 - $13.05, representing growth of 6.4% – 10.1% over Full Year 2022 adjusted earnings per share guidance.

January 10, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January 2023 ICON plc (Translation of registrant's name into Englis

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate b

January 3, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January, 2023 ICON plc (Translation of registrant's name into Engli

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of January, 2023 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate

January 3, 2023 EX-99.1

ICON plc to Present at the 41st Annual J.P. Morgan Healthcare Conference

EX-99.1 2 a53157641ex991.htm EXHIBIT 99.1 Exhibit 99.1 ICON plc to Present at the 41st Annual J.P. Morgan Healthcare Conference DUBLIN, Ireland-(BUSINESS WIRE)-January 3, 2023-ICON plc, (NASDAQ: ICLR) a world-leading healthcare intelligence and clinical research organisation, today announced that Dr. Steve Cutler, CEO of ICON plc, will present at the 41st Annual J.P. Morgan Healthcare Conference o

November 23, 2022 EX-99.1

ICON plc to Present at the 2022 Evercore ISI HealthCONx Conference

Exhibit 99.1 ICON plc to Present at the 2022 Evercore ISI HealthCONx Conference DUBLIN-(BUSINESS WIRE)-November 23, 2022-ICON plc, (NASDAQ: ICLR) a world-leading healthcare intelligence and clinical research organisation, today announced that Mr. Brendan Brennan, CFO of ICON plc, will present at the 2022 Evercore ISI HealthCONx Conference on Wednesday, November 30, 2022. The presentation will be w

November 23, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of November, 2022 ICON plc (Translation of registrant's name into Engl

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of November, 2022 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate

November 4, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 the month of November, 2022 ICON plc (Translation of registrant's name into English)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of November, 2022 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal executive offices

November 2, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of November, 2022 ICON plc (Translation of registrant's name into Engl

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month of November, 2022 ICON plc (Translation of registrant's name into English) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Indicate

November 2, 2022 EX-99.1

ICON Reports Third Quarter 2022 Results

Exhibit 99.1 ICON Reports Third Quarter 2022 Results Highlights Net business wins in the quarter of $2,351 million; a net book to bill of 1.21, and 1.24 on a trailing twelve month basis. Closing backlog of $20.2 billion, an increase of 1.3% on Q2 2022 or an increase of 9.0% on Q3 2021. Quarter 3 revenue of $1,942.4 million representing an increase of 3.9% on prior year adjusted revenue and 7.4% on

October 6, 2022 CORRESP

October 6, 2022 Mr. Patrick Kuhn Mr. Doug Jones Division of Corporate Finance Office of Trade & Services United States Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: ICON PLC Form 20-F for the Year Ended December 31,

October 6, 2022 Mr. Patrick Kuhn Mr. Doug Jones Division of Corporate Finance Office of Trade & Services United States Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: ICON PLC Form 20-F for the Year Ended December 31, 2021 Form 6-K Furnished January 12, 2022 Form 6-K Furnished July 27, 2022 File No. 333-08704 Dear Mr. Kuhn and Mr. Jones: ICON plc (the ?Company?, ?w

September 26, 2022 EX-99.1

ICON plc Schedules Third Quarter 2022 Earnings Conference Call

Exhibit 99.1 ICON plc Schedules Third Quarter 2022 Earnings Conference Call DUBLIN-(BUSINESS WIRE)-September 26, 2022-ICON plc (NASDAQ: ICLR), a world-leading healthcare intelligence and clinical research organisation, today announced that it will release its financial results for the third quarter 2022 after the market closes on Wednesday, November 2, 2022. The company will hold a conference call

September 26, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended September, 2022 ICON plc (Registrant's name) (Commission file nu

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended September, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Brendan Brennan, CFO South Count

September 6, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended September, 2022 ICON plc (Registrant's name) (Commission file nu

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended September, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Brendan Brennan, CFO South Count

September 6, 2022 EX-99.1

ICON Releases its 2021 ESG Report

EX-99.1 2 a52857623ex991.htm EXHIBIT 99.1 Exhibit 99.1 ICON Releases its 2021 ESG Report DUBLIN-(BUSINESS WIRE)-September 6, 2022-ICON plc, (NASDAQ: ICLR) a world-leading healthcare intelligence and clinical research organisation, today releases its 2021 Environmental, Social and Governance (ESG) Report. The report outlines how ICON is delivering on its ESG commitments and measured its performance

September 1, 2022 CORRESP

September 1, 2022 Mr. Patrick Kuhn Mr. Doug Jones Division of Corporate Finance Office of Trade & Services United States Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: ICON PLC Form 20-F for the Year Ended December 3

September 1, 2022 Mr. Patrick Kuhn Mr. Doug Jones Division of Corporate Finance Office of Trade & Services United States Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: ICON PLC Form 20-F for the Year Ended December 31, 2021 Form 6-K Furnished January 12, 2022 Form 6-K Furnished July 27, 2022 File No. 333-08704 Dear Mr. Kuhn and Mr. Jones: ICON plc (the ?Company?,

August 31, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended August, 2022 ICON plc (Registrant's name) (Commission file numbe

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended August, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Brendan Brennan, CFO South County B

August 31, 2022 EX-99.1

ICON plc to Present at the 2022 Wells Fargo Healthcare Conference

Exhibit 99.1 ICON plc to Present at the 2022 Wells Fargo Healthcare Conference DUBLIN-(BUSINESS WIRE)-August 31, 2022-ICON plc, (NASDAQ: ICLR) a world-leading healthcare intelligence and clinical research organisation, today announced that Mr. Brendan Brennan, CFO of ICON plc, will present at the 2022 Wells Fargo Healthcare Conference on Wednesday, September 7, 2022. The presentation will be webca

July 29, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 the month ended July, 2022 ICON plc (Registrant's name) (Commission file number) Sou

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended July, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal executive offices) Brendan Brennan, CFO South

July 27, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended July, 2022 ICON plc (Registrant's name) (Commission file number)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended July, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Brendan Brennan, CFO South County Bus

July 27, 2022 EX-99.1

ICON Shareholders Vote in Favour of All Resolutions at its Annual General Meeting

Exhibit 99.1 ICON Shareholders Vote in Favour of All Resolutions at its Annual General Meeting DUBLIN-(BUSINESS WIRE)-July 27, 2022-ICON plc (NASDAQ: ICLR) ) (?ICON?), a world-leading healthcare intelligence and clinical research organisation, today announced that all resolutions at the Annual General Meeting of the Company (AGM) held on July 26, 2022 (which resolutions had all been recommended by

July 27, 2022 EX-99.1

ICON Reports Second Quarter 2022 Results

Exhibit 99.1 ICON Reports Second Quarter 2022 Results Highlights Net business wins in the quarter of $2,323 million; a net book to bill of 1.20, and 1.25 on a trailing twelve month basis. Closing backlog of $20.0 billion, an increase of 2.1% on Q1 2022 or an increase of 10.7% year over year on a Combined Company basis. Quarter 2 revenue of $1,935.2 million representing a year on year increase of 1

July 27, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended July, 2022 ICON plc (Registrant's name) (Commission file number)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended July, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Brendan Brennan, CFO South County Bus

June 21, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended June, 2022 ICON plc (Registrant's name) (Commission file number)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended June, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Brendan Brennan, CFO South County Bus

June 21, 2022 EX-99.1

ICON plc Schedules Second Quarter 2022 Earnings Conference Call

Exhibit 99.1 ICON plc Schedules Second Quarter 2022 Earnings Conference Call DUBLIN-(BUSINESS WIRE)-June 21, 2022-ICON plc (NASDAQ: ICLR), a world-leading healthcare intelligence and clinical research organisation, today announced that it will release its financial results for the second quarter 2022 after the market closes on Wednesday, July 27, 2022. The company will hold a conference call and w

June 17, 2022 EX-99.1

Notice of Annual General Meeting to be held on 26 July 2022 ICON plc (the “Company” or “ICON”) THIS DOCUMENT IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION.

Exhibit 99.1 Notice of Annual General Meeting to be held on 26 July 2022 ICON plc (the ?Company? or ?ICON?) THIS DOCUMENT IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION. If you are in any doubt as to the action to be taken, you should consult with your independent financial adviser who, if you are taking advice in the Republic of Ireland, is authorised or exempted under the European Communitie

June 17, 2022 EX-99.3

Year Ended 31 December (dollars in thousands) 2021 2020 Change Other operating expenses (excluding exceptional items) $ 898,288 $ 406,863 $ 491,425 % of revenue (excluding exceptional items) 16.4 % 14.5 % 120.8 % Other operating expenses (including e

EXHIBIT 99.3 ICON plc and Subsidiaries Consolidated Financial Statements Year ended 31 December 2021 Registered number 145835 Directors? Report and Consolidated Financial Statements Contents Page Directors? and Other Information 2 Directors? Report 3 Statement of Directors? Responsibilities in respect of the Directors? report and the financial statements 29 Independent Auditor?s Report to the memb

June 17, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 the month ended June, 2022 ICON plc (Registrant's name) (Commission file number) Sou

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended June, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal executive offices) Brendan Brennan, CFO South

June 17, 2022 EX-99.2

Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLYTHIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATE

EX-99.2 3 iconplcprxyxgt20xp76983.htm EX-99.2 Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLYTHIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED. D87904-P76983 For Against Abstain For Against Abstain For Against Abstain ! !! ! !! ! !! ! !! ICON PL

May 23, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended May, 2022 ICON plc (Registrant's name) (Commission file number)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended May, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Brendan Brennan, CFO South County Busi

May 23, 2022 EX-99.1

ICON plc to present at the H.C. Wainwright Global Investment Conference and the Jefferies Healthcare Conference

Exhibit 99.1 ICON plc to present at the H.C. Wainwright Global Investment Conference and the Jefferies Healthcare Conference DUBLIN-(BUSINESS WIRE)-May 23, 2022-ICON plc, (NASDAQ: ICLR) a world-leading healthcare intelligence and clinical research organisation, today announced that Mr. Brendan Brennan, CFO of ICON plc, will present at the H.C. Wainwright Global Investment Conference on Tuesday, Ma

May 3, 2022 EX-99.1

ICON plc to present at the BofA Securities 2022 Healthcare Conference

Exhibit 99.1 ICON plc to present at the BofA Securities 2022 Healthcare Conference DUBLIN-(BUSINESS WIRE)-May 3, 2022-ICON plc, (NASDAQ: ICLR) a world-leading healthcare intelligence and clinical research organisation, today announced that Mr. Brendan Brennan, CFO of ICON plc, will present at the BofA Securities 2022 Healthcare Conference on Tuesday, May 10, 2022, at 5:20pm PT. Any changes to thes

May 3, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended May, 2022 ICON plc (Registrant's name) (Commission file number)

6-K 1 a52706387.htm ICON PLC 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended May, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Brend

April 29, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 the month ended April, 2022 ICON plc (Registrant's name) (Commission file number) So

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended April, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, D18 X5R3, Ireland (Address of principal executive offices) Brendan Brennan, CFO South

April 27, 2022 EX-99.1

ICON Reports First Quarter 2022 Results

Exhibit 99.1 ICON Reports First Quarter 2022 Results Highlights Record net business wins in the quarter of $2,426 million; a net book to bill of 1.28. Closing backlog of $19.6 billion, an increase of 2.7% on Q4 2021 or an increase of 9.8% year over year on a Combined Company basis. Quarter 1 revenue of $1,902 million representing a year on year increase of 121.6%. On a Combined Company basis, Quar

April 27, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended April, 2022 ICON plc (Registrant's name) (Commission file number

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended April, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Brendan Brennan, CFO South County Bu

March 10, 2022 EX-99.1

ICON plc to Webcast Analyst Day Meeting

Exhibit 99.1 ICON plc to Webcast Analyst Day Meeting DUBLIN-(BUSINESS WIRE)-March 10, 2022-ICON plc, (NASDAQ:ICLR) a world-leading healthcare intelligence and clinical research organisation, today announced that it will provide a live webcast of its Analyst Day meeting which will take place on Thursday, March 17, 2022 in Blue Bell, Philadelphia, starting at 12.30pm ET. The event will include prese

March 10, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended March, 2022 ICON plc (Registrant's name) (Commission file number

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended March, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Brendan Brennan, CFO South County Bu

March 1, 2022 EX-12.1

Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.1 Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Brendan Brennan, certify that: 1. I have reviewed this annual report on Form 20-F of ICON plc ("the registrant"). 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in l

March 1, 2022 EX-2.2

Description of Securities Registered Under Section 12 of the Exchange Act

Exhibit 2.2 Description of Securities Registered Under Section 12 of the Exchange Act As of December 31, 2021 ICON plc (?we,? ?us,? and ?our?) had the following series of securities registered pursuant to Section 12(b) of the Exchange Act: Title of each class Trading symbol Name of each exchange on which registered Ordinary shares, nominal value ?0.06 per share ICLR NASDAQ Global Select Market Ord

March 1, 2022 EX-12.2

Certification Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 12.2 Certification Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of ICON plc (the "Company") on Form 20-F for the year ending December 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Brendan Brennan, Chief Financial Officer of the Company, cert

March 1, 2022 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C.20549 FORM 20-F (Mark One) ☐ Registration statement pursuant to Section 12(b) or (g) of the Securities Exchange Act of 1934 ☒ Annual report pursuant to Section 13 or 15 (d) of the Secur

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C.20549 FORM 20-F (Mark One) ? Registration statement pursuant to Section 12(b) or (g) of the Securities Exchange Act of 1934 OR ? Annual report pursuant to Section 13 or 15 (d) of the Securities Exchange Act of 1934 For the fiscal year ended: December 31, 2021 OR ? Transition report pursuant to Section 13 or 15(d) of the Securities Ex

February 22, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended February, 2022 ICON plc (Registrant's name) (Commission file num

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended February, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Brendan Brennan, CFO South County

February 22, 2022 EX-99.1

ICON Reports Fourth Quarter and Full Year 2021 Results

Exhibit 99.1 ICON Reports Fourth Quarter and Full Year 2021 Results Highlights Record net business wins in the quarter of $2,378 million; a net book to bill of 1.26. Full year net business wins of $6,958 million; a net book to bill of 1.27. Closing backlog of $19.1 billion, an increase of 2.6% on Q3 2021 or an increase of 9.5% year over year on a Combined Company basis. Quarter 4 adjusted revenue

February 17, 2022 EX-99.1

ICON plc to Present at the 2022 Citi Healthcare Conference

Exhibit 99.1 ICON plc to Present at the 2022 Citi Healthcare Conference DUBLIN-(BUSINESS WIRE)-February 17, 2022-ICON plc, (NASDAQ: ICLR) a world-leading clinical research organisation powered by healthcare intelligence, today announced that Mr. Brendan Brennan, CFO of ICON plc, will present at the 2022 Citi Healthcare Conference on Thursday, February 24, 2022 at 11:45am ET. Any changes to these e

February 17, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended February, 2022 ICON plc (Registrant's name) (Commission file num

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended February, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Brendan Brennan, CFO South County

February 10, 2022 SC 13G/A

ICLR / ICON PLC / WCM INVESTMENT MANAGEMENT, LLC - FORM SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 7)* ICON PLC (Name of Issuer) Common (Title of Class of Securities) G4705A100 (CUSIP Number) December 31, 2021 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [

February 4, 2022 SC 13G/A

ICLR / ICON PLC / WELLINGTON MANAGEMENT GROUP LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5 )* ICON PLC (Name of Issuer) Common Stock (Title of Class of Securities) G4705A100 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is f

February 2, 2022 SC 13G/A

ICLR / ICON PLC / MASSACHUSETTS FINANCIAL SERVICES CO /MA/ - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* ICON PLC (Name of Issuer) Common Stock (Title of Class of Securities) G4705A100 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is f

January 12, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended January, 2022 ICON plc (Registrant's name) (Commission file numb

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended January, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Brendan Brennan, CFO South County

January 12, 2022 EX-99.1

ICON Issues Financial Guidance for Full Year 2022

EX-99.1 2 a52561668ex991.htm EXHIBIT 99.1 Exhibit 99.1 ICON Issues Financial Guidance for Full Year 2022 Highlights Full Year 2022 Revenue guidance in the range of $7,770 - $8,050 million, representing growth of 43 – 46% over Full Year 2021 Revenue guidance. Full Year 2022 adjusted earnings per share guidance in the range of $11.55 - $11.95, representing growth of 21 – 23% over Full Year 2021 adju

January 5, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended January, 2022 ICON plc (Registrant's name) (Commission file numb

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended January, 2022 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Brendan Brennan, CFO South County

January 5, 2022 EX-99.1

ICON plc to Present at the 40th Annual JP Morgan Healthcare Conference

Exhibit 99.1 ICON plc to Present at the 40th Annual JP Morgan Healthcare Conference DUBLIN, Ireland-(BUSINESS WIRE)-January 5, 2022-ICON plc, (NASDAQ: ICLR) a world-leading clinical research organisation powered by healthcare intelligence, today announced that Dr. Steve Cutler, CEO of ICON plc, will present at the 40th Annual JP Morgan Healthcare Conference on Wednesday, January 12, 2022 at 07.30a

November 22, 2021 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended November, 2021 ICON plc (Registrant's name) (Commission file num

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 under the Securities Exchange Act of 1934 For the month ended November, 2021 ICON plc (Registrant's name) 333-08704 (Commission file number) South County Business Park, Leopardstown, Dublin 18, Ireland (Address of principal executive offices) Brendan Brennan, CFO South County

November 22, 2021 EX-99.1

ICON Releases Environmental, Social and Governance Report

Exhibit 99.1 ICON Releases Environmental, Social and Governance Report The report looks to the future of ESG for the new ICON while highlighting advancements made in 2020 DUBLIN-(BUSINESS WIRE)-November 22, 2021-ICON plc (NASDAQ:ICLR) announced today the release of its 2020 Environmental, Social and Governance (ESG) Report. With the completion of ICON?s acquisition of PRA Health Sciences, the repo

Other Listings
MX:ICLR N
DE:IJF 151,90 €
Fintel data has been cited in the following publications:
Daily Mail Fox Business Business Insider Wall Street Journal The Washington Post Bloomberg Financial Times Globe and Mail
NASDAQ.com Reuters The Guardian Associated Press FactCheck.org Snopes Politifact
Federal Register The Intercept Forbes Fortune Magazine TheStreet Time Magazine Canadian Broadcasting Corporation International Business Times
Cambridge University Press Investopedia MarketWatch NY Daily News Entrepreneur Newsweek Barron's El Economista