What does CUSIP G4705A100 represent in this 13F holders report?

CUSIP G4705A100 is the security identifier for ICLR - ICON PLC - Ordinary shares, par value 0.06 euros used to aggregate holder disclosures.

How many institutions held ICLR - ICON PLC - Ordinary shares, par value 0.06 euros in Q4 2021?

536 institutional investors reported ICLR - ICON PLC - Ordinary shares, par value 0.06 euros for Q4 2021. Use the holders table for investor-level position and value details.

ICON PLC - Ordinary shares, par value 0.06 euros (ICLR)

CUSIP: G4705A100

Q4 2021 13F Holders as of 31 Dec 2021

Type / Class: Equity / Ordinary shares, par value 0.06 euros
Shares outstanding: 76,338,895
Total 13F shares: 72,834,119
Share change: -187,426
Total reported value: $22,515,024,773
Put/Call ratio: 33%
Price per share: $309.70
Number of holders: 536
Value change: -$9,217,914
Number of buys: 243
Number of sells: 226

Quarterly Holders Quick Answers

What is CUSIP G4705A100?
CUSIP G4705A100 identifies ICLR - ICON PLC - Ordinary shares, par value 0.06 euros in SEC institutional holdings data.

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SEC investors directory for manager drilldown.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q1 2022
Previous quarter: Q3 2021

Recent filing periods for CUSIP G4705A100:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of ICLR - ICON PLC - Ordinary shares, par value 0.06 euros (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	13F	Company	9.8%	7,461,705	$1,955,115,000	—	30 Sep 2021	13F
WCM INVESTMENT MANAGEMENT, LLC	13F	Company	9.4%	7,160,289	$1,876,139,000	—	30 Sep 2021	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	6.6%	5,048,625	$1,322,841,000	—	30 Sep 2021	13F
COMGEST GLOBAL INVESTORS S.A.S.	13F	Company	3.7%	2,813,638	$737,229,000	—	30 Sep 2021	13F
Clearbridge Investments, LLC	13F	Company	3.1%	2,363,455	$619,272,000	—	30 Sep 2021	13F
JANUS HENDERSON GROUP PLC	13F	Company	2.9%	2,236,444	$586,145,000	—	30 Sep 2021	13F
Boston Partners	13F	Company	2.8%	2,155,437	$564,828,000	—	30 Sep 2021	13F
ACADIAN ASSET MANAGEMENT LLC	13F	Company	2.6%	1,993,227	$522,216,000	—	30 Sep 2021	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	2.5%	1,946,072	$509,910,000	—	30 Sep 2021	13F
Pendal Group Ltd	13F	Company	2.2%	1,692,148	$443,377,000	—	30 Sep 2021	13F
POLEN CAPITAL MANAGEMENT LLC	13F	Company	2.2%	1,659,850	$434,914,000	—	30 Sep 2021	13F
FIL Ltd	13F	Company	2.1%	1,597,237	$418,508,000	—	30 Sep 2021	13F
Ninety One UK Ltd	13F	Company	2.1%	1,580,440	$414,107,000	—	30 Sep 2021	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	2%	1,554,558	$407,325,000	—	30 Sep 2021	13F
WESTFIELD CAPITAL MANAGEMENT CO LP	13F	Company	1.7%	1,284,943	$336,681,000	—	30 Sep 2021	13F
AustralianSuper Pty Ltd	13F	Company	1.4%	1,087,257	$284,883,000	—	30 Sep 2021	13F
WASATCH ADVISORS LP	13F	Company	1.3%	1,027,540	$269,236,000	—	30 Sep 2021	13F
Capital Research Global Investors	13F	Company	1.2%	919,751	$240,993,000	—	30 Sep 2021	13F
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	13F	Company	1.2%	913,720	$239,413,000	—	30 Sep 2021	13F
BAMCO INC /NY/	13F	Company	1.1%	853,686	$223,683,000	—	30 Sep 2021	13F
Invesco Ltd.	13F	Company	1.1%	819,429	$214,707,000	—	30 Sep 2021	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	1%	765,159	$200,487,000	—	30 Sep 2021	13F
STEADFAST CAPITAL MANAGEMENT LP	13F	Company	1%	761,981	$199,654,000	—	30 Sep 2021	13F
NORGES BANK	13F	Company	0.95%	727,578	$190,640,000	—	30 Sep 2021	13F
Aberdeen Group plc	13F	Company	0.95%	721,570	$189,066,000	—	30 Sep 2021	13F
AMERICAN CAPITAL MANAGEMENT INC	13F	Company	0.94%	719,763	$188,592,000	—	30 Sep 2021	13F
TWO SIGMA ADVISERS, LP	13F	Company	0.86%	655,763	$171,823,000	—	30 Sep 2021	13F
Neuberger Berman Group LLC	13F	Company	0.87%	663,337	$170,802,000	—	30 Sep 2021	13F
Trinity Street Asset Management LLP	13F	Company	0.85%	648,624	$169,952,000	—	30 Sep 2021	13F
Stephens Investment Management Group LLC	13F	Company	0.82%	625,370	$163,859,000	—	30 Sep 2021	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.78%	597,974	$156,682,000	—	30 Sep 2021	13F
FRANKLIN RESOURCES INC	13F	Company	0.71%	543,315	$142,372,000	—	30 Sep 2021	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	0.67%	513,614	$134,577,000	—	30 Sep 2021	13F
EARNEST PARTNERS LLC	13F	Company	0.66%	504,342	$132,148,000	—	30 Sep 2021	13F
NORTHERN TRUST CORP	13F	Company	0.63%	479,743	$125,701,000	—	30 Sep 2021	13F
PUTNAM INVESTMENTS LLC	13F	Company	0.63%	479,379	$125,607,000	—	30 Sep 2021	13F
Artisan Partners Limited Partnership	13F	Company	0.6%	458,012	$120,008,000	—	30 Sep 2021	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	0.58%	442,736	$116,006,000	—	30 Sep 2021	13F
Baird Financial Group, Inc.	13F	Company	0.51%	389,971	$102,180,000	—	30 Sep 2021	13F
BANK OF MONTREAL /CAN/	13F	Company	0.48%	362,630	$97,355,000	—	30 Sep 2021	13F
MORGAN STANLEY	13F	Company	0.46%	352,573	$92,381,000	—	30 Sep 2021	13F
ENVESTNET ASSET MANAGEMENT INC	13F	Company	0.46%	350,251	$91,773,000	—	30 Sep 2021	13F
BlackRock Finance, Inc.	13F	Company	0.46%	348,853	$91,405,000	—	30 Sep 2021	13F
BROWN CAPITAL MANAGEMENT LLC	13F	Company	0.41%	316,522	$82,935,000	—	30 Sep 2021	13F
TD ASSET MANAGEMENT INC	13F	Company	0.39%	300,775	$78,809,000	—	30 Sep 2021	13F
SEI INVESTMENTS CO	13F	Company	0.35%	270,525	$70,889,000	—	30 Sep 2021	13F
CIBC Private Wealth Group LLC	13F	Company	0.35%	263,959	$69,163,000	—	30 Sep 2021	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.33%	253,804	$66,502,000	—	30 Sep 2021	13F
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	13F	Company	0.33%	253,247	$66,356,000	—	30 Sep 2021	13F
LOOMIS SAYLES & CO L P	13F	Company	0.31%	236,970	$62,090,000	—	30 Sep 2021	13F

Institutional Holders of ICON PLC - Ordinary shares, par value 0.06 euros (ICLR) as of Q4 2021

As of 31 Dec 2021, ICON PLC - Ordinary shares, par value 0.06 euros (ICLR) was held by 536 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 72,834,119 shares. The largest 10 holders included MASSACHUSETTS FINANCIAL SERVICES CO /MA/, WCM INVESTMENT MANAGEMENT, LLC, WELLINGTON MANAGEMENT GROUP LLP, Clearbridge Investments, LLC, JANUS HENDERSON GROUP PLC, COMGEST GLOBAL INVESTORS S.A.S., Boston Partners, AMERICAN CENTURY COMPANIES INC, POLEN CAPITAL MANAGEMENT LLC, and Ninety One UK Ltd. This page lists 537 institutional shareholders reporting positions in this security for the Q4 2021 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q4 2021 vs Q3 2021 Across Filers

Q3 2021 holders

499

Q4 2021 holders

536

Holder diff

Investor	Q3 2021 Shares	Q4 2021 Shares	Share Diff	Share Chg %	Q3 2021 Value $	Q4 2021 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.