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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 2026

Institutional positions in Aon plc as of Mar 31, 2026. 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
1,266
−3 vs. Q4 2025
Shares held
187.6M
+22.2M (+13.4%) vs. Q4 2025
Total value
$60.6B
+$2.27B (+3.9%) vs. Q4 2025
New holders
142
485 more added
Sold out
145
417 more reduced

20 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: 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 2026: 1,266 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 2026: $60.6B
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 2026

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q4 2025.

Institutions holding AON in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
NFP Retirement, Inc.10,997$3.55M0.21%−290−2.6%Reduced
Regions Financial Corp10,939$3.53M0.02%−561−4.9%Reduced
Louisiana State Employees Retirement System10,900$3.52M0.06%−100−0.9%Reduced
Mount Yale Investment Advisors, LLC10,724$3.46M0.08%+8,924+495.8%Added
Pensionmark Financial Group, LLC10,654$3.44M0.06%+7,390+226.4%Added
Merit Financial Group, LLC10,614$3.43M0.03%+2,478+30.5%Added
Steward Partners Investment Advisory, LLC10,573$3.41M0.02%+8,782+490.3%Added
Machina Capital S.A.S.10,561$3.41M0.67%+2,747+35.2%Added
Radnor Capital Management, LLC10,547$3.40M0.50%−85−0.8%Reduced
Exencial Wealth Advisors, LLC10,468$3.38M0.11%+508+5.1%Added
Maryland State Retirement & Pension System10,467$3.38M0.07%00.0%Unchanged
Ostrum Asset Management10,432$3.37M0.19%+157+1.5%Added
Stanley-Laman Group, Ltd.10,425$3.36M0.41%+456+4.6%Added
Scotia Capital Inc.10,329$3.33M0.01%−2,304−18.2%Reduced
2Xideas AG10,275$3.32M1.30%−2,096−16.9%Reduced
Sivia Capital Partners, LLC10,250$3.31M0.64%+7,521+275.6%Added
Voleon Capital Management LP10,159$3.28M0.07%−8,351−45.1%Reduced
T. Rowe Price Investment Management, Inc.10,141$3.27M0.00%+2,172+27.3%Added
Pure Financial Advisors, Inc.10,076$3.25M0.05%−1,196−10.6%Reduced
Larson Financial Group LLC10,002$3.23M0.10%+418+4.4%Added
Union Heritage Capital, LLC9,967$3.22M1.19%00.0%Unchanged
New Mexico Educational Retirement Board9,945$3.21M0.10%00.0%Unchanged
Anderson Hoagland & Co9,894$3.19M0.27%+164+1.7%Added
Pine Valley Investments Ltd Liability Co9,855$3.18M0.15%−5,970−37.7%Reduced
Allspring Global Investments Holdings, LLC9,763$3.14M0.01%−3,283−25.2%Reduced
MV Capital Management, Inc.9,669$3.12M0.31%+156+1.6%Added
Diversified Trust Co9,515$3.07M0.06%−3,671−27.8%Reduced
Busey Wealth Management9,411$3.04M0.08%−114−1.2%Reduced
Horizon Investments, LLC9,393$3.02M0.03%+1,026+12.3%Added
Citizens Financial Group Inc9,262$2.99M0.04%−15,371−62.4%Reduced
Tower Research Capital LLC (TRC)9,186$2.97M0.08%+832+10.0%Added
Private Advisor Group, LLC9,142$2.95M0.01%+2,806+44.3%Added
LBMC Investment Advisors, LLC9,113$2.94M0.18%−278−3.0%Reduced
Nicolet Bankshares Inc9,106$2.94M0.11%+9,106New
Cambridge Investment Research Advisors, Inc.8,896$2.87M0.01%−231−2.5%Reduced
MUFG Securities EMEA plc8,794$2.84M0.04%−45,717−83.9%Reduced
First Foundation Advisors8,678$2.80M0.11%−1,200−12.1%Reduced
Burkett Asset Management Ltd8,639$2.79M2.75%+280+3.3%Added
Lido Advisors, LLC8,396$2.71M0.01%−2,472−22.7%Reduced
Equitable Holdings, Inc.7,617$2.69M0.02%+6,344+498.4%Added
Assenagon Asset Management S.A.8,220$2.65M0.00%+1,327+19.3%Added
Quantitative Investment Management, LLC8,210$2.65M0.28%+2,648+47.6%Added
ProVise Management Group, LLC7,982$2.58M0.19%+4,955+163.7%Added
TD Waterhouse Canada Inc.7,990$2.56M0.01%+3,548+79.9%Added
VestGen Advisors, LLC8,105$2.56M0.07%+1,091+15.6%Added
Vestmark Advisory Solutions, Inc.7,941$2.56M0.03%+96+1.2%Added
Metis Global Partners, LLC7,866$2.54M0.06%−773−8.9%Reduced
Cullen Investment Group, Ltd.7,696$2.48M0.33%+7,696New
Verdence Capital Advisors LLC7,631$2.46M0.14%−314−4.0%Reduced
Northwest & Ethical Investments L.P.7,552$2.45M0.06%+4,821+176.5%Added
Saudi Central Bank7,537$2.43M0.05%+7,537New
HB Wealth Management, LLC7,509$2.42M0.02%+1,670+28.6%Added
Americana Partners, LLC7,484$2.42M0.06%+3,552+90.3%Added
Legacy Wealth Asset Management, LLC7,470$2.41M0.59%+1,050+16.4%Added
Cary Street Partners Financial LLC7,442$2.40M0.06%−359−4.6%Reduced
DRW Securities, LLC7,433$2.40M0.13%+4,301+137.3%Added
Kampmann Melissa S.7,355$2.37M1.91%−1,130−13.3%Reduced
Crestwood Advisors Group LLC7,302$2.36M0.04%+873+13.6%Added
RSM US Wealth Management LLC7,235$2.34M0.03%−379−5.0%Reduced
Capital Group Investment Management Pte. Ltd.7,219$2.33M0.40%+780+12.1%Added
Crossmark Global Holdings, Inc.7,178$2.32M0.03%+35+0.5%Added
Beacon Financial Group7,156$2.31M0.23%−30−0.4%Reduced
Keybank National Association7,044$2.27M0.01%+221+3.2%Added
Mitsubishi UFJ Asset Management (UK) Ltd.7,000$2.26M1.17%+7,000New
Tokio Marine Asset Management Co Ltd6,957$2.25M0.08%+140+2.1%Added
Vident Advisory, LLC6,872$2.22M0.02%+1,855+37.0%Added
ExodusPoint Capital Management, LP6,843$2.21M0.02%+6,843New
Lafayette Investments, Inc.6,800$2.19M0.44%+130+1.9%Added
PFA Pension, Forsikringsaktieselskab6,769$2.18M0.01%+6,769New
Salvus Wealth Management, LLC6,717$2.17M1.26%−57−0.8%Reduced
Lombard Odier Asset Management (Switzerland) SA6,713$2.17M0.08%+6,713New
GWM Advisors LLC6,664$2.15M0.01%−6,789−50.5%Reduced
First National Bank & Trust Co of Newtown6,658$2.15M0.46%00.0%Unchanged
Catalyst Capital Advisors LLC6,577$2.12M0.04%+72+1.1%Added
Brown Brothers Harriman & Co6,577$2.12M0.01%+947+16.8%Added
Ascent Group, LLC6,563$2.12M0.07%−2,169−24.8%Reduced
Ninety One SA (PTY) Ltd6,550$2.11M0.09%+6,550New
Kentucky Retirement Systems24,855$2.08M0.16%+11,672+88.5%Added
Personal Cfo Solutions, LLC6,331$2.04M0.29%+1,394+28.2%Added
Brighton Jones LLC6,329$2.04M0.05%+6,329New
Nomura Holdings Inc6,317$2.04M0.02%+907+16.8%Added
Aire Advisors, LLC6,273$2.02M0.37%+16+0.3%Added
South Dakota Investment Council6,170$1.99M0.04%00.0%Unchanged
QRG Capital Management, Inc.6,169$1.99M0.02%+2,049+49.7%Added
NewEdge Wealth, LLC6,123$1.98M0.02%−10,684−63.6%Reduced
North Dakota State Investment Board6,082$1.96M0.08%−1,114−15.5%Reduced
Ancora Advisors, LLC6,052$1.95M0.04%+71+1.2%Added
Ashton Thomas Securities, LLC6,030$1.95M0.24%+6,030New
K.J. Harrison & Partners Inc6,000$1.94M0.32%+6,000New
EP Wealth Advisors, LLC5,995$1.94M0.01%−19−0.3%Reduced
Oppenheimer & Co Inc5,955$1.92M0.02%+3,158+112.9%Added
Gamco Investors, Inc. Et Al5,939$1.92M0.02%+83+1.4%Added
Anchor Capital Advisors LLC5,938$1.92M0.05%−10−0.2%Reduced
MUFG Securities Americas Inc.5,935$1.92M0.12%+145+2.5%Added
Beacon Pointe Advisors, LLC5,899$1.90M0.01%+2,407+68.9%Added
Equitable Trust Co5,861$1.89M0.09%+66+1.1%Added
Securian Asset Management, Inc5,844$1.89M0.07%00.0%Unchanged
Dai-Ichi Life Insurance Company, Ltd5,834$1.88M0.05%−377−6.1%Reduced
Warner Group LLC5,804$1.87M1.22%−500−7.9%Reduced
Rothschild Investment LLC5,790$1.87M0.10%+1,860+47.3%Added