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Aon plc

AON
Exchange
NYSE
Industry
Insurance Agents, Brokers & Service
SEC CIK
0000315293

In the last 90 days, Aon plc insiders filed 1 open-market purchase and 3 sales; 1,273 institutions reported holding it in 13F filings for Q2 2026, worth $63.9B in total; 4 superinvestors hold it, including Viking Global Investors and Baupost Group.

13F holders, Q1 2023

Institutional positions in Aon plc as of Mar 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,014
−2 vs. Q4 2022
Shares held
176.8M
+1.64M (+0.9%) vs. Q4 2022
Total value
$55.7B
+$3.18B (+6.1%) vs. Q4 2022
New holders
77
341 more added
Sold out
79
403 more reduced

18 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2022: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting AON on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2023: 1,014 institutions
Q1 2021: 919 institutionsQ2 2021: 912 institutionsQ3 2021: 917 institutionsQ4 2021: 995 institutionsQ1 2022: 985 institutionsQ2 2022: 966 institutionsQ3 2022: 950 institutionsQ4 2022: 1,034 institutionsQ1 2023: 1,014 institutionsQ2 2023: 1,025 institutionsQ3 2023: 1,049 institutionsQ4 2023: 1,067 institutionsQ1 2024: 1,087 institutionsQ2 2024: 1,111 institutionsQ3 2024: 1,149 institutionsQ4 2024: 1,196 institutionsQ1 2025: 1,276 institutionsQ2 2025: 1,233 institutionsQ3 2025: 1,255 institutionsQ4 2025: 1,289 institutionsQ1 2026: 1,266 institutionsQ2 2026: 1,273 institutions
Value heldQ1 2023: $55.7B
Q1 2021: $51.4BQ2 2021: $53.4BQ3 2021: $57.2BQ4 2021: $56.5BQ1 2022: $61.2BQ2 2022: $49.5BQ3 2022: $48.4BQ4 2022: $52.6BQ1 2023: $55.7BQ2 2023: $61.2BQ3 2023: $56.4BQ4 2023: $49.8BQ1 2024: $57.4BQ2 2024: $55.4BQ3 2024: $66.1BQ4 2024: $69.1BQ1 2025: $77.1BQ2 2025: $69.3BQ3 2025: $66.3BQ4 2025: $66.7BQ1 2026: $60.6BQ2 2026: $63.9B
Institutions holding AON and their total value by quarter
QuarterHoldersValue
Q2 20261,273$63.9B
Q1 20261,266$60.6B
Q4 20251,289$66.7B
Q3 20251,255$66.3B
Q2 20251,233$69.3B
Q1 20251,276$77.1B
Q4 20241,196$69.1B
Q3 20241,149$66.1B
Q2 20241,111$55.4B
Q1 20241,087$57.4B
Q4 20231,067$49.8B
Q3 20231,049$56.4B
Q2 20231,025$61.2B
Q1 20231,014$55.7B
Q4 20221,034$52.6B
Q3 2022950$48.4B
Q2 2022966$49.5B
Q1 2022985$61.2B
Q4 2021995$56.5B
Q3 2021917$57.2B
Q2 2021912$53.4B
Q1 2021919$51.4B

Institutions, Q1 2023

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q4 2022.

Institutions holding AON in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Neuberger Berman Group LLC2,543,880$802.0M0.74%−112,474−4.2%Reduced
Geode Capital Management, LLC3,621,604$1.14B0.15%−399,481−9.9%Reduced
Lazard Asset Management LLC4,185,991$1.32B1.73%−596,019−12.5%Reduced
Berkshire Hathaway IncSuperinvestorBerkshire Hathaway4,335,000$1.37B0.42%−61,000−1.4%Reduced
Mawer Investment Management Ltd.4,925,282$1.55B8.47%−208,900−4.1%Reduced
WCM Investment Management, LLC4,996,482$1.58B5.03%−107,790−2.1%Reduced
Morgan Stanley5,579,997$1.76B0.19%+3,356,519+151.0%Added
Capital International Investors5,741,026$1.81B0.47%−43,685−0.8%Reduced
State Street Corp8,198,004$2.58B0.15%−444,479−5.1%Reduced
Capital World Investors9,610,595$3.03B0.63%−278,744−2.8%Reduced
BlackRock Inc.13,947,244$4.40B0.13%+210,313+1.5%Added
Massachusetts Financial Services Co15,526,841$4.90B1.68%−169,495−1.1%Reduced
Vanguard Group Inc17,785,704$5.61B0.14%−225,735−1.3%Reduced
Transamerica Financial Advisors, Inc.1––00.0%Unchanged
Adage Capital Partners GP, L.L.C.0$00.00%−120,369−100.0%Sold out
Ergoteles LLC0$00.00%−81,845−100.0%Sold out
Prana Capital Management, LP0$00.00%−76,805−100.0%Sold out
Border to Coast Pensions Partnership Ltd0$00.00%−70,858−100.0%Sold out
Bridgewater Associates, LP0$00.00%−64,078−100.0%Sold out
Renaissance Technologies LLC0$00.00%−51,800−100.0%Sold out
Capital Fund Management S.A.0$00.00%−45,129−100.0%Sold out
Twinbeech Capital LP0$00.00%−32,477−100.0%Sold out
Shufro Rose & Co LLC0$00.00%−18,000−100.0%Sold out
Marshall Wace, LLP0$00.00%−16,917−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−16,414−100.0%Sold out
Overbrook Management Corp0$00.00%−15,905−100.0%Sold out
Mitsubishi UFJ Asset Management (UK) Ltd.0$00.00%−13,000−100.0%Sold out
Teza Capital Management LLC0$00.00%−9,349−100.0%Sold out
Arabesque Asset Management Ltd0$00.00%−8,719−100.0%Sold out
Duality Advisers, LP0$00.00%−7,834−100.0%Sold out
Crestline Management, LP0$00.00%−7,385−100.0%Sold out
Aquatic Capital Management LLC0$00.00%−7,100−100.0%Sold out
Sompo Asset Management Co., Ltd.0$00.00%−6,080−100.0%Sold out
Park Avenue Securities LLC0$00.00%−6,053−100.0%Sold out
Fullerton Fund Management Co Ltd.0$00.00%−3,555−100.0%Sold out
Simplex Trading, LLC0$00.00%−2,936−100.0%Sold out
Virtus ETF Advisers LLC0$00.00%−2,760−100.0%Sold out
Diametric Capital, LP0$00.00%−2,490−100.0%Sold out
Seven Eight Capital, LP0$00.00%−2,171−100.0%Sold out
MQS Management LLC0$00.00%−2,022−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−1,986−100.0%Sold out
Walleye Trading LLC0$00.00%−1,517−100.0%Sold out
Nwam LLC0$00.00%−1,464−100.0%Sold out
Virtu Financial LLC0$00.00%−1,418−100.0%Sold out
Cipher Capital LP0$00.00%−1,333−100.0%Sold out
Alpha Cubed Investments, LLC0$00.00%−1,326−100.0%Sold out
Utah Peaks Capital Inc0$00.00%−1,282−100.0%Sold out
Balyasny Asset Management LLC0$00.00%−1,281−100.0%Sold out
Two Sigma Securities, LLC0$00.00%−1,220−100.0%Sold out
Quantamental Technologies LLC0$00.00%−1,134−100.0%Sold out
Bridgefront Capital, LLC0$00.00%−1,050−100.0%Sold out
Prelude Capital Management, LLC0$00.00%−1,015−100.0%Sold out
S&T Bank0$00.00%−949−100.0%Sold out
Vise Technologies, Inc.0$00.00%−923−100.0%Sold out
Fortem Financial Group, LLC0$00.00%−853−100.0%Sold out
Rehmann Capital Advisory Group0$00.00%−838−100.0%Sold out
Asset Management Corp0$00.00%−787−100.0%Sold out
OneAscent Financial Services LLC0$00.00%−727−100.0%Sold out
Steel Peak Wealth Management LLC0$00.00%−720−100.0%Sold out
Institute for Wealth Management, LLC.0$00.00%−703−100.0%Sold out
Fort Sheridan Advisors LLC0$00.00%−675−100.0%Sold out
Childress Capital Advisors, LLC0$00.00%−674−100.0%Sold out
180 Wealth Advisors, LLC0$00.00%−622−100.0%Sold out
Stock Yards Bank & Trust Co0$00.00%−672−100.0%Sold out
Motive Wealth Advisors0$00.00%−668−100.0%Sold out
DuPont Capital Management Corp0$00.00%−576−100.0%Sold out
High Net Worth Advisory Group LLC0$00.00%−419−100.0%Sold out
Kraematon Investment Advisors, Inc0$00.00%−400−100.0%Sold out
Compagnie Lombard Odier SCmA0$00.00%−394−100.0%Sold out
Fiduciary Alliance LLC0$00.00%−277−100.0%Sold out
Group One Trading, L.P.0$00.00%−241−100.0%Sold out
Money Concepts Capital Corp0$00.00%−210−100.0%Sold out
U.S. Capital Wealth Advisors, LLC0$00.00%−200−100.0%Sold out
Centerpoint Advisors, LLC0$00.00%−183−100.0%Sold out
Stephenson National Bank & Trust0$00.00%−123−100.0%Sold out
Fred Alger Management, LLC0$00.00%−67−100.0%Sold out
Zullo Investment Group, Inc.0$00.00%−44−100.0%Sold out
IAG Wealth Partners, LLC0$00.00%−40−100.0%Sold out
MinichMacGregor Wealth Management, LLC0$00.00%−32−100.0%Sold out
Beaird Harris Wealth Management, LLC0$00.00%−32−100.0%Sold out
Lakewood Asset Management LLC0$00.00%−30−100.0%Sold out
Meeder Asset Management Inc0$00.00%−26−100.0%Sold out
Horan Securities, Inc.0$00.00%−20−100.0%Sold out
Private Ocean, LLC0$00.00%−19−100.0%Sold out
EWG Elevate Inc.0$00.00%−19−100.0%Sold out
Community Bank, N.A.0$00.00%−12−100.0%Sold out
My Personal CFO, LLC0$00.00%−10−100.0%Sold out
Sierra Capital LLC0$00.00%−10−100.0%Sold out
Affiance Financial, LLC0$00.00%−5−100.0%Sold out
Lansing Street Advisors0$00.00%−5−100.0%Sold out
PEAK6 Investments LLC0$00.00%−4−100.0%Sold out
Lee Financial Co0$00.00%−3−100.0%Sold out
Bogart Wealth, LLC0$00.00%−3−100.0%Sold out
Comerica Bank––––Not filed
Gofen & Glossberg LLC––––Not filed
Allstate Investment Management Co––––Not filed
Heritage Wealth Management, LLC––––Not filed
Pendal Group Limited––––Not filed
Canandaigua National Corp––––Not filed
Laurel Wealth Advisors, Inc.––––Not filed