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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, Q4 2025

Institutional positions in Aon plc as of Dec 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
1,289
+57 vs. Q3 2025
Shares held
189.1M
+3.31M (+1.8%) vs. Q3 2025
Total value
$66.7B
+$447.9M (+0.7%) vs. Q3 2025
New holders
156
425 more added
Sold out
99
478 more reduced

23 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 1,288 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: 1,024 institutionsQ3 2023: 1,048 institutionsQ4 2023: 1,066 institutionsQ1 2024: 1,086 institutionsQ2 2024: 1,110 institutionsQ3 2024: 1,148 institutionsQ4 2024: 1,195 institutionsQ1 2025: 1,275 institutionsQ2 2025: 1,232 institutionsQ3 2025: 1,254 institutionsQ4 2025: 1,288 institutionsQ1 2026: 1,265 institutionsQ2 2026: 1,273 institutions
Value heldQ4 2025: $66.7B
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 20261,265$60.6B
Q4 20251,288$66.7B
Q3 20251,254$66.3B
Q2 20251,232$69.3B
Q1 20251,275$77.1B
Q4 20241,195$69.1B
Q3 20241,148$66.1B
Q2 20241,110$55.4B
Q1 20241,086$57.4B
Q4 20231,066$49.8B
Q3 20231,048$56.4B
Q2 20231,024$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, Q4 2025

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q3 2025.

Institutions holding AON in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Marble Harbor Investment Counsel, LLC3,110$1.10M0.12%00.0%Unchanged
Frank, Rimerman Advisors LLC3,121$1.10M0.07%+34+1.1%Added
Farther Finance Advisors, LLC3,130$1.10M0.01%+1,484+90.2%Added
DRW Securities, LLC3,132$1.11M0.08%−5,913−65.4%Reduced
NorthRock Partners, LLC3,155$1.11M0.02%−1,996−38.7%Reduced
Rathbone Brothers plc3,174$1.12M0.00%00.0%Unchanged
U.S. Capital Wealth Advisors, LLC3,181$1.12M0.03%+16+0.5%Added
Comprehensive Financial Management LLC3,197$1.13M0.03%00.0%Unchanged
Exchange Traded Concepts, LLC3,225$1.14M0.01%+1,136+54.4%Added
Private Trust Co NA3,262$1.15M0.10%−72−2.2%Reduced
Pensionmark Financial Group, LLC3,264$1.15M0.02%−85−2.5%Reduced
Duncker Streett & Co Inc3,289$1.16M0.21%00.0%Unchanged
Ceredex Value Advisors LLC3,291$1.16M0.03%−104,482−96.9%Reduced
Pinnacle Financial Partners, Inc.3,293$1.16M0.01%+3,293New
Dorsey & Whitney Trust CO LLC3,316$1.17M0.06%−174−5.0%Reduced
Quantbot Technologies LP3,321$1.17M0.04%−9,820−74.7%Reduced
Raiffeisen Bank International AG3,290$1.17M0.02%−140−4.1%Reduced
Vise Technologies, Inc.3,334$1.18M0.02%+1,073+47.5%Added
Pictet & Cie (Europe) SA3,335$1.18M0.02%00.0%Unchanged
Signaturefd, LLC3,377$1.19M0.02%+561+19.9%Added
ABN AMRO Bank N.V.3,402$1.20M0.01%00.0%Unchanged
LGT Group Foundation3,400$1.21M0.01%−20−0.6%Reduced
Beacon Pointe Advisors, LLC3,492$1.23M0.01%−97−2.7%Reduced
Canton Hathaway, LLC3,500$1.24M0.24%00.0%Unchanged
First American Bank3,540$1.25M0.08%00.0%Unchanged
Belpointe Asset Management LLC3,599$1.27M0.05%+829+29.9%Added
Waterfront Wealth Inc.3,755$1.27M0.24%+17+0.5%Added
Pekin Hardy Strauss, Inc.3,616$1.28M0.12%−20−0.6%Reduced
Silver Lake Advisory, LLC3,623$1.28M0.50%00.0%Unchanged
Kovitz Investment Group Partners, LLC3,724$1.31M0.03%−355,035−99.0%Reduced
Greenleaf Trust3,726$1.31M0.01%−257−6.5%Reduced
Nomura Asset Management International Inc.3,774$1.33M0.00%+3,774New
Circle Wealth Management, LLC3,828$1.35M0.02%−454−10.6%Reduced
Dynasty Wealth Management, LLC3,836$1.35M0.01%−161−4.0%Reduced
Highland Capital Management, LLC3,850$1.36M0.07%+3,850New
Curated Wealth Partners LLC3,856$1.36M0.15%+709+22.5%Added
LGT Fund Management Co Ltd.3,818$1.36M0.11%00.0%Unchanged
Permanens Capital L.P.3,877$1.37M0.18%+3,877New
MOKAN Wealth Management Inc.3,900$1.37M0.61%+251+6.9%Added
Garrison Bradford & Associates Inc3,900$1.38M1.49%00.0%Unchanged
Mission Wealth Management, LP3,909$1.38M0.03%+60+1.6%Added
Rothschild Investment LLC3,930$1.39M0.08%+251+6.8%Added
Americana Partners, LLC3,932$1.39M0.04%+590+17.7%Added
Norden Group LLC3,957$1.40M0.14%−1,519−27.7%Reduced
Nordwand Advisors, LLC3,960$1.40M0.24%+50+1.3%Added
Auxier Asset Management3,972$1.40M0.20%+5+0.1%Added
Mattern Capital Management, LLC3,974$1.40M0.17%+33+0.8%Added
Ellis Investment Partners, LLC3,987$1.41M0.25%+2+0.1%Added
Huntington National Bank3,994$1.41M0.01%+58+1.5%Added
Value Partners Investments Inc.4,007$1.42M0.11%+654+19.5%Added
Stance Capital LLC4,015$1.42M0.52%+402+11.1%Added
TCW Group Inc4,068$1.44M0.01%+4,068New
Integrated Wealth Concepts LLC4,078$1.44M0.02%−3,566−46.7%Reduced
Logan Capital Management Inc4,078$1.44M0.06%00.0%Unchanged
Chesley Taft & Associates LLC4,078$1.44M0.06%+6+0.1%Added
QRG Capital Management, Inc.4,120$1.45M0.02%+470+12.9%Added
Clune & Associates, Ltd.4,179$1.47M0.32%−66−1.6%Reduced
Evolve Private Wealth, LLC4,180$1.48M0.09%+4,180New
Accredited Investors Inc.4,185$1.48M0.08%−9−0.2%Reduced
NBT Bank N A4,210$1.49M0.10%−9−0.2%Reduced
Vestcor Inc4,230$1.49M0.04%00.0%Unchanged
Private Wealth Asset Management, LLC4,235$1.49M0.16%−25−0.6%Reduced
Arkadios Wealth Advisors4,240$1.50M0.03%+1,925+83.2%Added
Ossiam4,253$1.50M0.03%−1,717−28.8%Reduced
Canandaigua National Bank & Trust Co4,291$1.51M0.14%−192−4.3%Reduced
CX Institutional4,337$1.53M0.05%−5,200−54.5%Reduced
Icon Wealth Advisors, LLC4,376$1.54M0.10%−2,389−35.3%Reduced
BBR Partners, LLC4,381$1.55M0.08%−9−0.2%Reduced
TD Waterhouse Canada Inc.4,442$1.57M0.01%+146+3.4%Added
Cambria Investment Management, L.P.4,448$1.57M0.09%+1,336+42.9%Added
Quadrant Capital Group LLC4,458$1.57M0.05%−758−14.5%Reduced
Syon Capital LLC4,494$1.59M0.08%+248+5.8%Added
Gibbs Wealth Management4,522$1.59M0.38%−1,008−18.2%Reduced
Enterprise Financial Services Corp4,536$1.60M0.81%+46+1.0%Added
Magnetar Financial LLC4,576$1.61M0.02%−17,520−79.3%Reduced
Oak Thistle LLC4,580$1.62M0.22%−7,388−61.7%Reduced
Parkside Financial Bank & Trust4,604$1.62M0.12%+17+0.4%Added
Fiduciary Alliance LLC4,612$1.63M0.11%−119−2.5%Reduced
Altfest L J & Co Inc4,660$1.64M0.18%+2,837+155.6%Added
Meeder Advisory Services, Inc.4,674$1.65M0.07%+192+4.3%Added
Greenland Capital Management LP4,700$1.66M0.24%+4,700New
Skopos Labs, Inc.4,667$1.66M0.08%+1,880+67.5%Added
Plato Investment Management Ltd4,697$1.67M0.11%00.0%Unchanged
Concurrent Investment Advisors, LLC4,736$1.67M0.02%+4,051+591.4%Added
Tealwood Asset Management Inc4,781$1.69M0.76%−968−16.8%Reduced
Mesirow Financial Investment Management, Inc.4,891$1.73M0.04%−755−13.4%Reduced
Romano Brothers and Company4,907$1.73M0.20%+51+1.1%Added
United Capital Financial Advisers, LLC4,932$1.74M0.01%−452−8.4%Reduced
Personal Cfo Solutions, LLC4,937$1.74M0.28%−257−4.9%Reduced
Triumph Capital Management4,950$1.75M0.38%+10.0%Added
Fischer Financial Services, Inc.4,963$1.75M0.46%−224−4.3%Reduced
Cohen Klingenstein LLC5,000$1.76M0.05%00.0%Unchanged
Vident Advisory, LLC5,017$1.77M0.02%−304−5.7%Reduced
Welch Group, LLC5,148$1.82M0.07%+18+0.4%Added
Caldwell Trust Co5,200$1.83M0.16%−510−8.9%Reduced
Snowden Capital Advisors LLC5,238$1.85M0.05%+630+13.7%Added
Jones Financial Companies LLLP5,271$1.86M0.00%+491+10.3%Added
NorthCrest Asset Manangement, LLC5,374$1.89M0.04%−87−1.6%Reduced
Nomura Holdings Inc5,410$1.91M0.01%−1,457−21.2%Reduced
Everence Capital Management Inc5,433$1.92M0.11%−422−7.2%Reduced