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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 2025

Institutional positions in Aon plc as of Mar 31, 2025. 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
1,276
+99 vs. Q4 2024
Shares held
193.6M
+2.23M (+1.2%) vs. Q4 2024
Total value
$77.1B
+$8.37B (+12.2%) vs. Q4 2024
New holders
168
469 more added
Sold out
69
398 more reduced

19 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: 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 2025: 1,276 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 2025: $77.1B
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 2025

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q4 2024.

Institutions holding AON in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Arlington Partners LLC11,506$4.59M1.80%−739−6.0%Reduced
Louisiana State Employees Retirement System11,600$4.63M0.09%00.0%Unchanged
Ar Asset Management Inc11,618$4.64M1.05%00.0%Unchanged
Yacktman Asset Management LP11,670$4.66M0.06%00.0%Unchanged
Prudential PLC11,804$4.71M0.02%+4,428+60.0%Added
Stanley-Laman Group, Ltd.11,818$4.72M0.73%−514−4.2%Reduced
Wesbanco Bank Inc11,940$4.77M0.17%+31+0.3%Added
Cornerstone Advisors, LLC12,200$4.87M0.21%00.0%Unchanged
Advisor Group Holdings, Inc.12,283$4.90M0.01%−13,834−53.0%Reduced
CWM, LLC12,303$4.91M0.02%−12−0.1%Reduced
Pine Valley Investments Ltd Liability Co12,385$4.94M0.32%+512+4.3%Added
Modera Wealth Management, LLC12,558$5.01M0.07%+253+2.1%Added
MML Investors Services, LLC12,597$5.03M0.02%+146+1.2%Added
Sequoia Financial Advisors, LLC13,270$5.30M0.04%+207+1.6%Added
Jasper Ridge Partners, L.P.13,390$5.34M0.17%00.0%Unchanged
Kentucky Retirement Systems13,406$5.35M0.16%−1,523−10.2%Reduced
Clearstead Advisors, LLC13,466$5.37M0.08%+2,803+26.3%Added
Capital Planning Advisors, LLC13,574$5.42M0.84%−36−0.3%Reduced
Buckhead Capital Management LLC13,810$5.51M1.77%+129+0.9%Added
Pittenger & Anderson Inc13,815$5.51M0.20%−1,350−8.9%Reduced
Atria Investments LLC14,109$5.63M0.07%+8,726+162.1%Added
Pacer Advisors, Inc.14,166$5.65M0.01%−3,121−18.1%Reduced
Artemis Investment Management LLP14,265$5.69M0.09%−172−1.2%Reduced
Clifford Swan Investment Counsel LLC14,405$5.75M0.21%+809+6.0%Added
Ieq Capital, LLC14,805$5.91M0.05%+6,671+82.0%Added
Wealthfront Advisers LLC14,841$5.92M0.02%+2,186+17.3%Added
Bell Asset Management Ltd15,117$6.03M1.11%−5,128−25.3%Reduced
Avanza Fonder AB15,282$6.05M0.20%+15,282New
Aigen Investment Management, LP15,211$6.07M0.97%+15,211New
ASR Vermogensbeheer N.V.15,539$6.20M0.09%+15,539New
Bleakley Financial Group, LLC15,839$6.32M0.20%+5,739+56.8%Added
Nordea Investment Management AB16,001$6.38M0.01%+49+0.3%Added
First Foundation Advisors16,023$6.39M0.26%−4,406−21.6%Reduced
Teachers Retirement System of the State of Kentucky16,700$6.67M0.06%+570+3.5%Added
Diversified Trust Co16,797$6.70M0.17%−1,194−6.6%Reduced
Arrowstreet Capital, Limited Partnership16,829$6.72M0.01%+16,829New
Biltmore Family Office, LLC16,850$6.72M1.15%−500−2.9%Reduced
NEOS Investment Management LLC16,980$6.78M0.13%+4,690+38.2%Added
Mizuho Securities USA LLC17,316$6.91M0.15%−3,181−15.5%Reduced
Johnson Investment Counsel Inc17,372$6.93M0.07%−38−0.2%Reduced
1832 Asset Management L.P.17,637$7.04M0.01%−7,571−30.0%Reduced
Fayez Sarofim & Co17,716$7.07M0.02%+1,274+7.7%Added
Caisse de Depot Et Placement du Quebec17,743$7.08M0.01%+16,158+1,019.4%Added
Regions Financial Corp17,744$7.08M0.05%−1,065−5.7%Reduced
Sanctuary Advisors, LLC17,964$7.17M0.05%−567−3.1%Reduced
KWMG, LLC18,233$7.28M0.74%−117−0.6%Reduced
Gotham Asset Management, LLC18,243$7.28M0.06%+464+2.6%Added
Kestra Advisory Services, LLC18,403$7.34M0.04%−823−4.3%Reduced
Oregon Public Employees Retirement Fund18,552$7.40M0.14%+10+0.1%Added
Acadian Asset Management LLC18,796$7.50M0.02%+12,065+179.2%Added
Pragma Gestao de Patrimonio Ltd18,900$7.54M4.04%+18,900New
Rakuten Investment Management, Inc.19,171$7.56M0.03%+19,171New
Bridgewater Advisors Inc.21,694$7.59M0.66%+16+0.1%Added
Strategy Asset Managers LLC19,085$7.62M1.57%−90−0.5%Reduced
Baader Bank INC19,219$7.67M0.77%+41+0.2%Added
Boothbay Fund Management, LLC19,222$7.67M0.27%+7,762+67.7%Added
Swiss Life Asset Management Ltd19,224$7.67M0.06%+3,829+24.9%Added
Cresset Asset Management, LLC19,274$7.69M0.04%−350−1.8%Reduced
Engineers Gate Manager LP19,522$7.79M0.13%+16,181+484.3%Added
Carderock Capital Management Inc19,551$7.80M2.07%+1,054+5.7%Added
Commerce Bank19,855$7.92M0.05%+590+3.1%Added
Dash Acquisitions Inc.23,078$8.19M1.83%+707+3.2%Added
JustInvest LLC20,935$8.35M0.12%+713+3.5%Added
Elo Mutual Pension Insurance Co21,049$8.40M0.19%+3,207+18.0%Added
Live Oak Private Wealth LLC21,276$8.49M1.38%+140+0.7%Added
CIBC Private Wealth Group, LLC23,902$8.61M0.02%+4,891+25.7%Added
Violich Capital Management, Inc.21,608$8.62M1.16%00.0%Unchanged
Northwestern Mutual Wealth Management Co21,694$8.66M0.01%−1,513−6.5%Reduced
Mirae Asset Global Investments Co., Ltd.25,454$8.77M0.04%+3,678+16.9%Added
Fiduciary Group LLC21,987$8.77M0.88%−124−0.6%Reduced
Bank of Nova Scotia22,591$9.02M0.02%−59,287−72.4%Reduced
Nippon Life Global Investors Americas, Inc.22,670$9.05M0.44%+1,010+4.7%Added
Gerber, LLC22,790$9.10M7.58%00.0%Unchanged
Jain Global LLC22,926$9.15M0.19%+22,926New
Haverford Financial Services, Inc.23,144$9.24M2.85%+4,259+22.6%Added
Mirae Asset Global ETFs Holdings Ltd.23,329$9.31M0.02%+2,117+10.0%Added
La Banque Postale Asset Management SA23,655$9.44M0.15%−875−3.6%Reduced
Commonwealth Equity Services, LLC23,768$9.48M0.01%−3,135−11.7%Reduced
Wedge Capital Management L L P24,034$9.59M0.19%−202−0.8%Reduced
Ethic Inc.24,086$9.61M0.19%+2,632+12.3%Added
Cetera Investment Advisers24,248$9.68M0.02%−1,743−6.7%Reduced
Captrust Financial Advisors24,335$9.71M0.02%+2,416+11.0%Added
Nissay Asset Management Corp24,403$9.74M0.06%+58+0.2%Added
Intermede Investment Partners Ltd24,458$9.76M0.31%+177+0.7%Added
Janus Henderson Group PLC25,058$9.88M0.01%+687+2.8%Added
YHB Investment Advisors, Inc.24,805$9.90M0.83%−1,161−4.5%Reduced
Fifth Third Bancorp24,818$9.90M0.04%+206+0.8%Added
Truist Financial Corp24,858$9.92M0.02%+540+2.2%Added
Mutual of America Capital Management LLC25,151$10.0M0.12%−757−2.9%Reduced
State of Alaska, Department of Revenue25,335$10.1M0.11%+675+2.7%Added
Marks Group Wealth Management, Inc25,340$10.1M0.97%+493+2.0%Added
Aryeh Capital Management Ltd.25,400$10.1M7.24%−17,400−40.7%Reduced
Citizens Financial Group Inc26,082$10.4M0.21%+901+3.6%Added
Public Employees Retirement Association of Colorado26,158$10.4M0.04%−74−0.3%Reduced
Beese Fulmer Investment Management, Inc.26,259$10.5M0.90%+596+2.3%Added
GHP Investment Advisors, Inc.26,315$10.5M0.50%+321+1.2%Added
Ilmarinen Mutual Pension Insurance Co26,372$10.5M0.09%00.0%Unchanged
Boston Common Asset Management, LLC26,439$10.6M0.32%+12,450+89.0%Added
Silvercrest Asset Management Group LLC26,515$10.6M0.08%+105+0.4%Added
Baird Financial Group, Inc.26,927$10.7M0.02%+653+2.5%Added