What does CUSIP G0403H108 represent in this 13F holders report?

CUSIP G0403H108 is the security identifier for AON - Aon plc - Class A Ordinary Shares used to aggregate holder disclosures.

How many institutions held AON - Aon plc - Class A Ordinary Shares in Q1 2021?

882 institutional investors reported AON - Aon plc - Class A Ordinary Shares for Q1 2021. Use the holders table for investor-level position and value details.

Aon plc - Class A Ordinary Shares (AON)

CUSIP: G0403H108

Q1 2021 13F Holders as of 31 Mar 2021

Type / Class: Equity / Class A Ordinary Shares
Shares outstanding: 213,748,891
Total 13F shares: 222,036,826
Share change: -438,121
Total reported value: $51,077,860,032
Put/Call ratio: 59%
Price per share: $230.11
Number of holders: 882
Value change: -$83,947,311
Number of buys: 406
Number of sells: 370

Quarterly Holders Quick Answers

What is CUSIP G0403H108?
CUSIP G0403H108 identifies AON - Aon plc - Class A Ordinary Shares in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Related Filing Research

Latest 13F filings for newly reported positions.
Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
Latest 10-Q/10-K reports for financial context tied to this issuer.
Recent insider transactions for executive and insider activity.
SEC investors directory and top value investors for manager drilldown.
Back to full security ownership history.

Explore More Reporting Periods

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

Newer quarter: Q2 2021
Previous quarter: Q4 2020

Recent filing periods for CUSIP G0403H108:

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

Top shareholders of AON - Aon plc - Class A Ordinary Shares (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	9.4%	20,197,468	$4,267,118,000	—	31 Dec 2020	13F
VANGUARD GROUP INC	13F	Company	8.2%	17,595,225	$3,717,343,000	—	31 Dec 2020	13F
BlackRock Finance, Inc.	13F	Company	8.1%	17,307,328	$3,656,520,000	—	31 Dec 2020	13F
Capital International Investors	13F	Company	4.7%	10,055,114	$2,123,044,000	—	31 Dec 2020	13F
STATE STREET CORP	13F	Company	4.2%	8,925,432	$1,885,676,000	—	31 Dec 2020	13F
EAGLE CAPITAL MANAGEMENT LLC	13F	Company	3.3%	7,152,814	$1,511,175,000	—	31 Dec 2020	13F
Capital World Investors	13F	Company	3.3%	7,024,973	$1,484,166,000	—	31 Dec 2020	13F
Mawer Investment Management Ltd.	13F	Company	2.6%	5,605,878	$1,184,354,000	—	31 Dec 2020	13F
LAZARD ASSET MANAGEMENT LLC	13F	Company	2.6%	5,512,112	$1,164,542,000	—	31 Dec 2020	13F
JANUS HENDERSON GROUP PLC	13F	Company	2.1%	4,457,198	$941,652,000	—	31 Dec 2020	13F
WCM INVESTMENT MANAGEMENT, LLC	13F	Company	2.1%	4,433,474	$936,660,000	—	31 Dec 2020	13F
Longview Partners (Guernsey) LTD	13F	Company	2.1%	4,412,732	$932,278,000	—	31 Dec 2020	13F
Artisan Partners Limited Partnership	13F	Company	1.8%	3,927,889	$829,845,000	—	31 Dec 2020	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.7%	3,581,054	$754,600,000	—	31 Dec 2020	13F
Neuberger Berman Group LLC	13F	Company	1.7%	3,562,808	$752,403,000	—	31 Dec 2020	13F
Independent Franchise Partners LLP	13F	Company	1.6%	3,337,158	$705,041,000	—	31 Dec 2020	13F
NORTHERN TRUST CORP	13F	Company	1.4%	2,919,435	$616,790,000	—	31 Dec 2020	13F
BANK OF AMERICA CORP /DE/	13F	Company	1.2%	2,664,806	$562,994,000	—	31 Dec 2020	13F
VIKING GLOBAL INVESTORS LP	13F	Company	1.2%	2,570,620	$543,095,000	—	31 Dec 2020	13F
BlueSpruce Investments, LP	13F	Company	1.2%	2,485,120	$525,031,000	—	31 Dec 2020	13F
FARALLON CAPITAL MANAGEMENT LLC	13F	Company	1.1%	2,271,514	$479,903,000	—	31 Dec 2020	13F
MACKENZIE FINANCIAL CORP	13F	Company	1%	2,242,742	$473,824,000	—	31 Dec 2020	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	1%	2,240,982	$473,452,000	—	31 Dec 2020	13F
EdgePoint Investment Group Inc.	13F	Company	0.95%	2,020,392	$426,848,000	—	31 Dec 2020	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.87%	1,856,896	$392,306,000	—	31 Dec 2020	13F
Invesco Ltd.	13F	Company	0.85%	1,811,990	$382,820,000	—	31 Dec 2020	13F
Bank of New York Mellon Corp	13F	Company	0.81%	1,727,178	$364,901,000	—	31 Dec 2020	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.71%	1,515,246	$320,126,000	—	31 Dec 2020	13F
Legal & General Group Plc	13F	Company	0.71%	1,513,582	$319,774,000	—	31 Dec 2020	13F
Brave Warrior Advisors, LLC	13F	Company	0.7%	1,497,634	$316,405,000	—	31 Dec 2020	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	0.66%	1,417,593	$299,495,000	—	31 Dec 2020	13F
CANTILLON CAPITAL MANAGEMENT LLC	13F	Company	0.65%	1,386,579	$292,943,000	—	31 Dec 2020	13F
FMR LLC	13F	Company	0.65%	1,379,721	$291,493,000	—	31 Dec 2020	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	0.64%	1,364,377	$288,251,930	—	31 Dec 2020	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.63%	1,338,984	$282,873,000	—	31 Dec 2020	13F
ROYAL BANK OF CANADA	13F	Company	0.6%	1,282,931	$271,044,000	—	31 Dec 2020	13F
First Pacific Advisors, LP	13F	Company	0.59%	1,254,963	$265,136,000	—	31 Dec 2020	13F
ALTRINSIC GLOBAL ADVISORS LLC	13F	Company	0.58%	1,237,863	$261,523,000	—	31 Dec 2020	13F
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	13F	Company	0.56%	1,202,170	$248,620,000	—	31 Dec 2020	13F
GQG Partners LLC	13F	Company	0.54%	1,162,396	$245,579,000	—	31 Dec 2020	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.49%	1,048,716	$221,525,000	—	31 Dec 2020	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.46%	989,002	$208,947,000	—	31 Dec 2020	13F
Swiss National Bank	13F	Company	0.46%	977,049	$206,421,000	—	31 Dec 2020	13F
Boston Partners	13F	Company	0.44%	947,310	$200,138,000	—	31 Dec 2020	13F
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	13F	Company	0.42%	903,469	$190,876,000	—	31 Dec 2020	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	0.42%	890,674	$188,173,000	—	31 Dec 2020	13F
DSM CAPITAL PARTNERS LLC	13F	Company	0.39%	841,199	$177,720,000	—	31 Dec 2020	13F
Meritage Group LP	13F	Company	0.39%	836,384	$176,703,000	—	31 Dec 2020	13F
JPMORGAN CHASE & CO	13F	Company	0.37%	795,585	$168,083,000	—	31 Dec 2020	13F
WADDELL & REED FINANCIAL INC	13F	Company	0.37%	782,122	$165,239,000	—	31 Dec 2020	13F

Institutional Holders of Aon plc - Class A Ordinary Shares (AON) as of Q1 2021

As of 31 Mar 2021, Aon plc - Class A Ordinary Shares (AON) was held by 882 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 222,036,826 shares. The largest 10 holders included MASSACHUSETTS FINANCIAL SERVICES CO /MA/, VANGUARD GROUP INC, BlackRock Inc., STATE STREET CORP, Capital International Investors, EAGLE CAPITAL MANAGEMENT LLC, LAZARD ASSET MANAGEMENT LLC, Mawer Investment Management Ltd., JANUS HENDERSON GROUP PLC, and WCM INVESTMENT MANAGEMENT, LLC. This page lists 883 institutional shareholders reporting positions in this security for the Q1 2021 filing period.

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

Compare Q1 2021 vs Q4 2020 Across Filers

Q4 2020 holders

828

Q1 2021 holders

882

Holder diff

Investor	Q4 2020 Shares	Q1 2021 Shares	Share Diff	Share Chg %	Q4 2020 Value $	Q1 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.