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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, Q3 2023

Institutional positions in Aon plc as of Sep 30, 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
1,049
+35 vs. Q2 2023
Shares held
174.0M
−3.24M (−1.8%) vs. Q2 2023
Total value
$56.4B
−$4.68B (−7.7%) vs. Q2 2023
New holders
99
362 more added
Sold out
64
380 more reduced

11 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2023: 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 holdersQ3 2023: 1,049 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 heldQ3 2023: $56.4B
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, Q3 2023

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q2 2023.

Institutions holding AON in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
HM Payson & Co186,503$60.5M1.42%+294+0.2%Added
CIBC Asset Management Inc176,367$57.2M0.24%−4,567−2.5%Reduced
APG Asset Management N.V.173,552$56.3M0.12%+14,800+9.3%Added
Obermeyer Wood Investment Counsel, LLLP169,092$54.8M4.08%−3,562−2.1%Reduced
Storebrand Asset Management AS161,897$52.5M0.25%+5,652+3.6%Added
Acadian Asset Management LLC156,824$50.8M0.21%+156,824New
Mitsubishi UFJ Trust & Banking Corp156,504$50.7M0.13%−3,264−2.0%Reduced
Zurich Insurance Group Ltd152,056$49.3M0.52%−103,844−40.6%Reduced
Kovitz Investment Group Partners, LLC151,806$49.2M0.89%−46,149−23.3%Reduced
Panagora Asset Management Inc150,307$48.7M0.30%−24,319−13.9%Reduced
Central Securities Corp150,000$48.6M5.94%00.0%Unchanged
Pensioenfonds Rail & Ov149,895$48.6M3.05%−76,645−33.8%Reduced
Bowie Capital Management, LLC147,262$47.7M6.27%−5,882−3.8%Reduced
Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management144,650$46.9M2.58%00.0%Unchanged
Ycg, LLC141,851$46.0M4.25%−216−0.2%Reduced
HSBC Holdings PLC135,296$44.1M0.05%+46,241+51.9%Added
GFI Investment Counsel Ltd.130,551$42.3M6.46%+6,889+5.6%Added
Allianz Asset Management GmbH130,246$42.2M0.09%+32,121+32.7%Added
Gluskin Sheff & Assoc Inc129,224$41.9M3.21%−11,244−8.0%Reduced
AQR Capital Management LLC126,838$41.1M0.08%−2,221−1.7%Reduced
Millennium Management LLC126,651$41.1M0.04%+120,229+1,872.1%Added
Davis R M Inc123,354$40.0M1.00%−5,556−4.3%Reduced
Swedbank AB123,326$40.0M0.07%+524+0.4%Added
TCTC Holdings, LLC120,000$38.9M1.50%00.0%Unchanged
Spears Abacus Advisors LLC118,845$38.5M3.30%−85−0.1%Reduced
DekaBank Deutsche Girozentrale116,989$38.4M0.09%+37,110+46.5%Added
Prana Capital Management, LP117,108$38.0M2.47%+117,108New
State of New Jersey Common Pension Fund D116,545$37.8M0.14%−5,053−4.2%Reduced
Ironvine Capital Partners, LLC115,265$37.4M4.80%+324+0.3%Added
Public Employees Retirement System of Ohio115,238$37.4M0.17%−9,738−7.8%Reduced
CIBC Private Wealth Group, LLC114,955$37.3M0.09%+4,321+3.9%Added
The PNC Financial Services Group, Inc.114,533$37.1M0.03%−303−0.3%Reduced
Chevy Chase Trust Holdings, Inc.114,228$37.0M0.15%−3,466−2.9%Reduced
Dudley & Shanley, Inc.110,858$35.9M6.80%+310+0.3%Added
Williams Jones Wealth Management, LLC.109,933$35.6M0.55%−1,495−1.3%Reduced
State of Wisconsin Investment Board108,676$35.2M0.11%−2,878−2.6%Reduced
Citadel Advisors LLC108,445$35.2M0.04%+108,445New
Asset Management One Co.,Ltd.106,666$34.6M0.15%+106+0.1%Added
Waters Parkerson & Co., LLC102,715$33.3M1.99%−377−0.4%Reduced
Susquehanna International Group, LLP101,174$32.8M0.05%+15,709+18.4%Added
Connectus Wealth, LLC100,159$32.5M0.72%+100,159New
Markel Group Inc.SuperinvestorMarkel Group99,550$32.3M0.39%+6,500+7.0%Added
Victory Capital Management Inc99,192$32.2M0.04%+2,742+2.8%Added
Toronto Dominion Bank98,825$32.0M0.05%+98,825New
Night Owl Capital Management, LLC96,807$31.4M7.86%−68−0.1%Reduced
Gateway Investment Advisers LLC93,987$30.5M0.38%−423−0.4%Reduced
Treasurer of the State of North Carolina92,035$29.8M0.16%−2,060−2.2%Reduced
Natixis Investment Managers International89,145$28.9M2.23%+910+1.0%Added
Brinker Capital Investments, LLC86,789$28.1M0.34%−2,393−2.7%Reduced
Orion Portfolio Solutions, LLC86,789$28.1M0.34%−2,393−2.7%Reduced
Border to Coast Pensions Partnership Ltd85,176$28.1M0.75%00.0%Unchanged
Thornburg Investment Management Inc85,822$27.8M0.46%−999−1.2%Reduced
Franklin Resources Inc83,168$27.0M0.01%−15,395−15.6%Reduced
Teacher Retirement System of Texas82,951$26.9M0.18%−9,410−10.2%Reduced
Royal London Asset Management Ltd80,372$26.1M0.08%+3,113+4.0%Added
Advisors Capital Management, LLC76,892$24.9M0.63%−59−0.1%Reduced
DnB Asset Management AS75,990$24.6M0.15%+403+0.5%Added
STRS Ohio75,282$24.4M0.11%+75,282New
Prudential Financial Inc74,959$24.3M0.04%−5,589−6.9%Reduced
State of Tennessee, Treasury Department74,102$24.0M0.10%+24,897+50.6%Added
LFL Advisers, LLC72,840$23.6M11.54%−3,660−4.8%Reduced
JLB & Associates Inc71,402$23.1M3.63%−3,748−5.0%Reduced
KBC Group NV70,916$23.0M0.09%−61,251−46.3%Reduced
Man Group plc–$22.9M0.07%––
Robeco Institutional Asset Management B.V.69,891$22.7M0.06%+25,595+57.8%Added
EULAV Asset Management69,700$22.6M0.83%−32,000−31.5%Reduced
Rafferty Asset Management, LLC68,085$22.1M0.13%+2,566+3.9%Added
Capital International Sarl67,818$22.0M1.01%+8,543+14.4%Added
Nomura Asset Management Co Ltd67,132$21.8M0.10%+648+1.0%Added
AXA S.A.66,839$21.7M0.08%+20,726+44.9%Added
HRT Financial LP66,426$21.5M0.21%+66,426New
Main Street Research LLC66,135$21.4M2.21%+30,257+84.3%Added
TD Asset Management Inc65,536$21.2M0.03%−1,189−1.8%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)65,032$21.1M0.09%+5,848+9.9%Added
Abner Herrman & Brock LLC64,764$21.0M3.22%−1,349−2.0%Reduced
Wealth Enhancement Advisory Services, LLC64,761$21.0M0.07%+64,761New
Banque Pictet & Cie SA62,288$20.2M0.24%−4,034−6.1%Reduced
Ardevora Asset Management LLP62,029$20.1M0.99%−51,140−45.2%Reduced
Capital International Inc61,815$20.0M0.38%+2,982+5.1%Added
Jane Street Group, LLC61,810$20.0M0.03%+18,751+43.5%Added
American International Group, Inc.61,597$20.0M0.13%−501−0.8%Reduced
Financiere des Professionnels - Fonds d,investissement inc.60,957$19.8M1.89%+60,957New
Squarepoint Ops LLC60,833$19.7M0.10%+50,664+498.2%Added
CIBC World Markets Inc.60,775$19.7M0.07%+10,461+20.8%Added
Todd Asset Management LLC57,823$18.7M0.45%−632−1.1%Reduced
Arizona State Retirement System57,812$18.7M0.16%−827−1.4%Reduced
Trinity Street Asset Management LLP56,225$18.2M2.34%+1,618+3.0%Added
Nisa Investment Advisors, LLC55,955$18.1M0.14%−673−1.2%Reduced
State of Michigan Retirement System55,658$18.0M0.12%−500−0.9%Reduced
Greenwood Gearhart Inc53,411$17.3M2.05%+723+1.4%Added
Standard Life Aberdeen plc52,993$17.2M0.04%−3,890−6.8%Reduced
Kerrisdale Advisers, LLC52,977$17.2M5.44%−5,552−9.5%Reduced
Amalgamated Bank52,514$17.0M0.14%−5,070−8.8%Reduced
Healthcare of Ontario Pension Plan Trust Fund52,400$17.0M0.08%+31,400+149.5%Added
Capital Group Investment Management Pte. Ltd.51,763$16.8M1.09%−13,751−21.0%Reduced
Ossiam51,759$16.8M0.30%+28,320+120.8%Added
LPL Financial LLC51,623$16.7M0.01%−5,290−9.3%Reduced
MetLife Investment Management50,167$16.3M0.13%−1,634−3.2%Reduced
Segall Bryant & Hamill, LLC49,591$16.1M0.19%−2,377−4.6%Reduced
Tower Bridge Advisors48,921$15.9M1.47%−373−0.8%Reduced