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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
Hantz Financial Services, Inc.15,434$4.98M0.08%−24,836−61.7%Reduced
Illinois Municipal Retirement Fund15,480$5.00M0.06%+768+5.2%Added
Kestra Advisory Services, LLC15,553$5.02M0.02%−3,393−17.9%Reduced
Cresset Asset Management, LLC15,619$5.04M0.02%−155−1.0%Reduced
Wealthfront Advisers LLC15,672$5.06M0.01%+1,262+8.8%Added
Gulf International Bank (UK) Ltd15,738$5.08M0.11%+6,000+61.6%Added
Sequoia Financial Advisors, LLC15,907$5.13M0.03%+705+4.6%Added
Wedge Capital Management L L P16,077$5.19M0.10%−6,732−29.5%Reduced
Graham Capital Management, L.P.16,254$5.25M0.18%+16,254New
Investment Management Corp of Ontario16,450$5.31M0.07%−922−5.3%Reduced
Berman McAleer LLC16,609$5.36M0.73%−40.0%Reduced
Williams Jones Wealth Management, LLC.16,715$5.40M0.07%−12,862−43.5%Reduced
Prudential PLC16,747$5.41M0.04%−4,053−19.5%Reduced
Teachers Retirement System of the State of Kentucky16,947$5.47M0.04%00.0%Unchanged
Susquehanna International Group, LLP17,363$5.60M0.01%−9,734−35.9%Reduced
Bell Asset Management Ltd17,801$5.75M1.69%+1,860+11.7%Added
Haverford Financial Services, Inc.17,853$5.76M1.72%−4,164−18.9%Reduced
Commonwealth Equity Services, LLC17,879$5.77M0.01%−7,889−30.6%Reduced
Blue Sparrow, LLC18,000$5.81M0.10%+18,000New
Sanctuary Advisors, LLC18,119$5.85M0.03%+2,366+15.0%Added
Macquarie Group Ltd18,502$5.97M0.04%−9,796−34.6%Reduced
Savant Capital, LLC18,626$6.01M0.03%−173−0.9%Reduced
Avanza Fonder AB18,957$6.12M0.17%00.0%Unchanged
Obion Capital Management LP19,079$6.16M6.07%+2,890+17.9%Added
Abn Amro Investment Solutions19,265$6.22M0.08%+19,265New
Commerce Bank19,432$6.27M0.03%+998+5.4%Added
Two Sigma Investments, LP19,537$6.31M0.01%+40+0.2%Added
Gerber, LLC19,553$6.31M3.57%00.0%Unchanged
Millennium Management LLC19,976$6.45M0.00%−616,946−96.9%Reduced
Guggenheim Capital LLC20,069$6.48M0.05%+17,050+564.8%Added
Bridgewater Associates, LP20,219$6.53M0.03%+6,851+51.2%Added
ASR Vermogensbeheer N.V.20,344$6.57M0.08%+340+1.7%Added
KWMG, LLC20,420$6.59M0.55%+711+3.6%Added
Nordea Investment Management AB21,029$6.74M0.01%+1,044+5.2%Added
Bridgewater Advisors Inc.21,857$6.79M0.40%+21,857New
Annandale Capital, LLC21,032$6.79M1.11%+8,413+66.7%Added
Violich Capital Management, Inc.21,365$6.90M0.81%−243−1.1%Reduced
Bleakley Financial Group, LLC21,435$6.92M0.11%+1,770+9.0%Added
Carderock Capital Management Inc21,586$6.97M1.72%−852−3.8%Reduced
Fiduciary Group LLC21,616$6.98M0.60%+194+0.9%Added
Strategy Asset Managers LLC21,983$7.10M1.16%−529−2.3%Reduced
Warren Averett Asset Management, LLC22,073$7.12M0.05%+19,804+872.8%Added
Mirae Asset Global ETFs Holdings Ltd.22,425$7.24M0.01%+124+0.6%Added
Empowered Funds, LLC22,496$7.26M0.05%+3,892+20.9%Added
FORA Capital, LLC22,617$7.30M0.53%+14,420+175.9%Added
Silvercrest Asset Management Group LLC22,735$7.34M0.05%−363−1.6%Reduced
Mutual of America Capital Management LLC22,816$7.36M0.08%−265−1.1%Reduced
Live Oak Private Wealth LLC22,945$7.41M1.03%+382+1.7%Added
Federation des caisses Desjardins du Quebec22,989$7.42M0.03%+9,398+69.1%Added
Hyperion Capital Advisors LP23,001$7.42M3.57%+23,001New
YHB Investment Advisors, Inc.23,048$7.44M0.53%−1,487−6.1%Reduced
Advisor Group Holdings, Inc.23,049$7.44M0.01%−421−1.8%Reduced
First Manhattan Co23,071$7.45M0.02%−2,385−9.4%Reduced
Wealth Enhancement Advisory Services, LLC28,622$7.61M0.02%−4,042−12.4%Reduced
Dash Acquisitions Inc.23,289$7.73M1.61%+734+3.3%Added
Qube Research & Technologies Ltd24,328$7.85M0.01%−30,442−55.6%Reduced
Capital Group Private Client Services, Inc.24,516$7.91M0.13%−18,055−42.4%Reduced
Ethic Inc.24,563$7.93M0.12%+496+2.1%Added
M&T Bank Corp24,572$7.93M0.03%−1,931−7.3%Reduced
Oregon Public Employees Retirement Fund24,637$7.95M0.10%+42+0.2%Added
US Bancorp24,891$8.03M0.01%−6,577−20.9%Reduced
Allstate Corp25,006$8.07M0.09%+9,370+59.9%Added
Thrivent Financial for Lutherans25,105$8.10M0.02%+15,739+168.0%Added
Jensen Investment Management Inc25,569$8.25M0.16%+14,966+141.1%Added
Callan Family Office, LLC25,719$8.30M0.19%+2,567+11.1%Added
Public Employees Retirement Association of Colorado25,766$8.32M0.03%−28−0.1%Reduced
Yousif Capital Management, LLC25,814$8.33M0.10%−556−2.1%Reduced
Fifth Third Bancorp26,074$8.42M0.02%+1,761+7.2%Added
GHP Investment Advisors, Inc.26,374$8.51M0.35%−144−0.5%Reduced
Oppenheimer Asset Management Inc.26,392$8.52M0.10%−6,560−19.9%Reduced
Old National Bancorp26,400$8.52M0.14%+2,100+8.6%Added
Motley Fool Asset Management LLC26,587$8.58M0.37%−1,232−4.4%Reduced
State of Alaska, Department of Revenue26,675$8.61M0.09%−390−1.4%Reduced
Boston Common Asset Management, LLC26,695$8.62M0.55%−922−3.3%Reduced
Janus Henderson Group PLC26,747$8.63M0.00%+2,396+9.8%Added
Vinva Investment Management Ltd26,725$8.66M0.11%+7,629+40.0%Added
American Century Companies Inc26,854$8.67M0.00%−1,437−5.1%Reduced
JustInvest LLC27,025$8.72M0.09%−977−3.5%Reduced
Clifford Swan Investment Counsel LLC27,076$8.74M0.30%+2,785+11.5%Added
First Trust Advisors LP27,672$8.93M0.01%−11,245−28.9%Reduced
Mercer Global Advisors Inc27,748$8.96M0.01%+10,878+64.5%Added
Philadelphia Financial Management of San Francisco, LLC28,000$9.04M2.90%+28,000New
MML Investors Services, LLC28,019$9.04M0.03%+14,533+107.8%Added
British Columbia Investment Management Corp28,141$9.08M0.05%−8,207−22.6%Reduced
Sumitomo Mitsui DS Asset Management Company, Ltd28,640$9.24M0.07%+274+1.0%Added
Mediolanum International Funds Ltd28,645$9.28M0.10%+3,945+16.0%Added
Prudential Financial Inc29,018$9.37M0.01%−8,843−23.4%Reduced
CWM, LLC29,527$9.53M0.03%+15,596+112.0%Added
Engineers Gate Manager LP29,551$9.54M0.12%+2,999+11.3%Added
Elo Mutual Pension Insurance Co30,191$9.75M0.16%+1,999+7.1%Added
Peapack Gladstone Financial Corp30,194$9.75M0.12%+16+0.1%Added
Motco30,391$9.81M0.91%+1,318+4.5%Added
O'Shaughnessy Asset Management, LLC30,522$9.85M0.05%+6,743+28.4%Added
NEOS Investment Management LLC30,543$9.86M0.05%−3,257−9.6%Reduced
Baird Financial Group, Inc.30,711$9.91M0.02%+1,382+4.7%Added
Premier Fund Managers Ltd30,668$9.94M0.70%−2,160−6.6%Reduced
Truist Financial Corp31,199$10.1M0.01%+10,186+48.5%Added
Beese Fulmer Investment Management, Inc.31,236$10.1M0.65%+1,692+5.7%Added
Sone Capital Management, LLC31,483$10.2M0.85%−2,819−8.2%Reduced
Eurizon Capital SGR S.p.A.31,906$10.3M0.03%+31,906New