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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 2021

Institutional positions in Aon plc as of Mar 31, 2021. 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
919
No complete 13F data for Q4 2020
Shares held
223.5M
No complete 13F data for Q4 2020
Total value
$51.4B
No complete 13F data for Q4 2020

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 2021: 919 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 2021: $51.4B
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, Q1 2021

Shares, value and share of portfolio for each institution holding Aon plc.

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding AON in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Douglass Winthrop Advisors, LLC313,864$72.2M1.94%––
Omers Administration Corp311,100$71.6M1.13%––
Bank of Montreal298,244$70.1M0.05%––
CIBC World Markets Corp294,282$67.7M0.43%––
State Board of Administration of Florida Retirement System293,412$67.5M0.13%––
Los Angeles Capital Management LLC288,391$66.4M0.30%––
Allianz Asset Management GmbH285,104$65.6M0.07%––
AustralianSuper Pty Ltd279,629$64.3M0.50%––
Manufacturers Life Insurance Company, The273,545$62.9M0.05%––
Bain Capital Public Equity Management II, LLC271,162$62.4M2.60%––
Cooper Investors Pty Ltd270,886$62.3M4.64%––
Marshall Wace North America L.P.262,819$60.5M0.25%––
Raymond James & Associates261,195$60.1M0.06%––
Jackson Square Partners, LLC259,148$59.6M0.34%––
New York State Teachers Retirement System252,305$58.1M0.12%––
Marathon Asset Management LLP240,356$55.3M0.77%––
CIBC Asset Management Inc231,356$53.2M0.23%––
Laurion Capital Management LP217,204$50.0M0.68%––
Envestnet Asset Management Inc207,104$47.7M0.03%––
Schroder Investment Management Group205,759$47.3M0.06%––
Obermeyer Wood Investment Counsel, LLLP205,233$47.2M2.90%––
PGGM Investments204,892$47.1M0.20%––
Prudential Financial Inc202,979$46.7M0.07%––
Canada Pension Plan Investment Board202,628$46.6M0.06%––
Mitsubishi UFJ Trust & Banking Corp203,622$46.4M0.10%––
Susquehanna International Group, LLP197,904$45.5M0.06%––
The PNC Financial Services Group, Inc.196,120$45.1M0.04%––
Pictet Asset Management Ltd194,668$44.8M0.05%––
SEI Investments Co185,324$42.5M0.11%––
Amundi Asset Management US, Inc.177,478$40.8M0.03%––
Balyasny Asset Management LLC176,190$40.5M0.24%––
State of Tennessee, Treasury Department174,569$40.2M0.16%––
Eaton Vance Management172,903$39.8M0.06%––
Ycg, LLC171,596$39.5M4.41%––
Williams Jones Wealth Management, LLC.168,363$38.7M0.61%––
Stifel Financial Corp166,398$38.3M0.06%––
AQR Capital Management LLC164,478$37.8M0.06%––
Dudley & Shanley, Inc.163,728$37.7M6.50%––
Bowie Capital Management, LLC158,000$36.4M5.55%––
Robeco Institutional Asset Management B.V.155,709$35.8M0.09%––
Gluskin Sheff & Assoc Inc152,883$35.2M1.58%––
Chevy Chase Trust Holdings, Inc.151,668$34.9M0.12%––
Central Securities Corp150,000$34.5M3.94%––
Point72 Asset Management, L.P.147,945$34.0M0.17%––
Davis R M Inc147,901$34.0M0.94%––
Segall Bryant & Hamill, LLC145,636$33.5M0.33%––
State of New Jersey Common Pension Fund D139,769$32.2M0.11%––
Martingale Asset Management L P139,317$32.1M0.37%––
Petrus Trust Company, LTA136,200$31.3M3.00%––
AMF Pensionsforsakring AB135,513$31.2M0.23%––
FIL Ltd135,002$31.1M0.04%––
Prana Capital Management, LP130,986$30.1M2.47%––
Asset Management One Co.,Ltd.128,455$29.6M0.12%––
Night Owl Capital Management, LLC124,644$28.7M5.84%––
Iridian Asset Management LLC122,279$28.1M0.49%––
TCTC Holdings, LLC120,000$27.6M1.31%––
Spears Abacus Advisors LLC118,223$27.2M2.10%––
Rafferty Asset Management, LLC114,395$26.3M0.19%––
Storebrand Asset Management AS110,242$25.4M0.13%––
STRS Ohio109,078$25.1M0.09%––
Fiera Capital Corp108,297$24.9M0.07%––
Gateway Investment Advisers LLC108,094$24.9M0.27%––
Voya Investment Management LLC104,626$24.1M0.05%––
James Hambro & Partners104,198$24.0M2.22%––
Truist Financial Corp104,002$23.9M0.04%––
UBS Group AG101,601$23.4M0.01%––
DnB Asset Management AS99,536$22.9M0.17%––
Treasurer of the State of North Carolina99,292$22.8M0.14%––
Caisse de Depot Et Placement du Quebec97,519$22.4M0.05%––
TPI Fund Managers Ltd97,367$22.4M3.50%––
Cortland Associates Inc96,201$22.1M2.52%––
EULAV Asset Management94,900$21.8M0.59%––
BP PLC93,088$21.4M0.75%––
Waters Parkerson & Co., LLC91,482$21.1M1.30%––
Guggenheim Capital LLC89,621$20.6M0.14%––
Connor, Clark & Lunn Investment Management Ltd.89,502$20.6M0.11%––
Franklin Resources Inc88,884$20.5M0.01%––
Majedie Asset Management Ltd88,255$20.3M1.47%––
Royal London Asset Management Ltd86,895$20.0M0.09%––
Todd Asset Management LLC86,363$19.9M0.47%––
Retirement Systems of Alabama84,290$19.4M0.07%––
Ironvine Capital Partners, LLC83,405$19.2M2.23%––
TD Asset Management Inc82,229$18.9M0.02%––
First Foundation Advisors80,156$18.4M0.79%––
Nuveen Asset Management, LLC79,801$18.4M0.01%––
AXA S.A.79,437$18.3M0.06%––
LFL Advisers, LLC78,000$17.9M8.84%––
DekaBank Deutsche Girozentrale77,605$17.8M0.06%––
American International Group, Inc.77,186$17.8M0.07%––
Overbrook Management Corp75,560$17.4M3.87%––
JLB & Associates Inc75,388$17.3M2.85%––
Aviva PLC75,375$17.3M0.08%––
Schonfeld Strategic Advisors LLC74,100$17.1M0.23%––
Aryeh Capital Management Ltd.72,900$16.8M8.79%––
Abner Herrman & Brock LLC72,731$16.7M2.53%––
Chilton Investment Co LLC72,427$16.7M0.46%––
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.71,360$16.4M0.11%––
Bridgewater Associates, LP71,304$16.4M0.14%––
Employees Retirement System of Texas70,661$16.3M0.21%––
Forsta Ap-Fonden69,500$16.0M0.22%––