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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: 1,024 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 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 20261,265$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, 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
Zurcher Kantonalbank (Zurich Cantonalbank)54,028$12.4M0.07%––
Thrivent Financial for Lutherans56,873$13.1M0.03%––
Korea Investment CORP58,200$13.4M0.04%––
Tower Bridge Advisors58,813$13.5M1.02%––
Cubist Systematic Strategies, LLC59,726$13.7M0.18%––
Sit Investment Associates Inc59,770$13.8M0.36%––
Intermede Investment Partners Ltd61,100$14.1M0.36%––
AMP Capital Investors Ltd62,215$14.3M0.07%––
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund62,656$14.4M0.13%––
State of Michigan Retirement System62,924$14.5M0.09%––
Bishop Rock Capital, L.P.63,453$14.6M4.96%––
Arizona State Retirement System64,425$14.8M0.13%––
Advisors Capital Management, LLC64,976$15.0M0.52%––
Teachers Retirement System of the State of Kentucky65,106$15.0M0.15%––
Nisa Investment Advisors, LLC65,320$15.0M0.10%––
Squarepoint Ops LLC65,376$15.0M0.14%––
Banque Pictet & Cie SA66,033$15.2M0.19%––
KBC Group NV66,718$15.4M0.06%––
Kings Point Capital Management67,219$15.5M1.53%––
Forsta Ap-Fonden69,500$16.0M0.22%––
Employees Retirement System of Texas70,661$16.3M0.21%––
Bridgewater Associates, LP71,304$16.4M0.14%––
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.71,360$16.4M0.11%––
Chilton Investment Co LLC72,427$16.7M0.46%––
Abner Herrman & Brock LLC72,731$16.7M2.53%––
Aryeh Capital Management Ltd.72,900$16.8M8.79%––
Schonfeld Strategic Advisors LLC74,100$17.1M0.23%––
Aviva PLC75,375$17.3M0.08%––
JLB & Associates Inc75,388$17.3M2.85%––
Overbrook Management Corp75,560$17.4M3.87%––
American International Group, Inc.77,186$17.8M0.07%––
DekaBank Deutsche Girozentrale77,605$17.8M0.06%––
LFL Advisers, LLC78,000$17.9M8.84%––
AXA S.A.79,437$18.3M0.06%––
Nuveen Asset Management, LLC79,801$18.4M0.01%––
First Foundation Advisors80,156$18.4M0.79%––
TD Asset Management Inc82,229$18.9M0.02%––
Ironvine Capital Partners, LLC83,405$19.2M2.23%––
Retirement Systems of Alabama84,290$19.4M0.07%––
Todd Asset Management LLC86,363$19.9M0.47%––
Royal London Asset Management Ltd86,895$20.0M0.09%––
Majedie Asset Management Ltd88,255$20.3M1.47%––
Franklin Resources Inc88,884$20.5M0.01%––
Connor, Clark & Lunn Investment Management Ltd.89,502$20.6M0.11%––
Guggenheim Capital LLC89,621$20.6M0.14%––
Waters Parkerson & Co., LLC91,482$21.1M1.30%––
BP PLC93,088$21.4M0.75%––
EULAV Asset Management94,900$21.8M0.59%––
Cortland Associates Inc96,201$22.1M2.52%––
TPI Fund Managers Ltd97,367$22.4M3.50%––
Caisse de Depot Et Placement du Quebec97,519$22.4M0.05%––
Treasurer of the State of North Carolina99,292$22.8M0.14%––
DnB Asset Management AS99,536$22.9M0.17%––
UBS Group AG101,601$23.4M0.01%––
Truist Financial Corp104,002$23.9M0.04%––
James Hambro & Partners104,198$24.0M2.22%––
Voya Investment Management LLC104,626$24.1M0.05%––
Gateway Investment Advisers LLC108,094$24.9M0.27%––
Fiera Capital Corp108,297$24.9M0.07%––
STRS Ohio109,078$25.1M0.09%––
Storebrand Asset Management AS110,242$25.4M0.13%––
Rafferty Asset Management, LLC114,395$26.3M0.19%––
Spears Abacus Advisors LLC118,223$27.2M2.10%––
TCTC Holdings, LLC120,000$27.6M1.31%––
Iridian Asset Management LLC122,279$28.1M0.49%––
Night Owl Capital Management, LLC124,644$28.7M5.84%––
Asset Management One Co.,Ltd.128,455$29.6M0.12%––
Prana Capital Management, LP130,986$30.1M2.47%––
FIL Ltd135,002$31.1M0.04%––
AMF Pensionsforsakring AB135,513$31.2M0.23%––
Petrus Trust Company, LTA136,200$31.3M3.00%––
Martingale Asset Management L P139,317$32.1M0.37%––
State of New Jersey Common Pension Fund D139,769$32.2M0.11%––
Segall Bryant & Hamill, LLC145,636$33.5M0.33%––
Davis R M Inc147,901$34.0M0.94%––
Point72 Asset Management, L.P.147,945$34.0M0.17%––
Central Securities Corp150,000$34.5M3.94%––
Chevy Chase Trust Holdings, Inc.151,668$34.9M0.12%––
Gluskin Sheff & Assoc Inc152,883$35.2M1.58%––
Robeco Institutional Asset Management B.V.155,709$35.8M0.09%––
Bowie Capital Management, LLC158,000$36.4M5.55%––
Dudley & Shanley, Inc.163,728$37.7M6.50%––
AQR Capital Management LLC164,478$37.8M0.06%––
Stifel Financial Corp166,398$38.3M0.06%––
Williams Jones Wealth Management, LLC.168,363$38.7M0.61%––
Ycg, LLC171,596$39.5M4.41%––
Eaton Vance Management172,903$39.8M0.06%––
State of Tennessee, Treasury Department174,569$40.2M0.16%––
Balyasny Asset Management LLC176,190$40.5M0.24%––
Amundi Asset Management US, Inc.177,478$40.8M0.03%––
SEI Investments Co185,324$42.5M0.11%––
Pictet Asset Management Ltd194,668$44.8M0.05%––
The PNC Financial Services Group, Inc.196,120$45.1M0.04%––
Susquehanna International Group, LLP197,904$45.5M0.06%––
Mitsubishi UFJ Trust & Banking Corp203,622$46.4M0.10%––
Canada Pension Plan Investment Board202,628$46.6M0.06%––
Prudential Financial Inc202,979$46.7M0.07%––
PGGM Investments204,892$47.1M0.20%––
Obermeyer Wood Investment Counsel, LLLP205,233$47.2M2.90%––
Schroder Investment Management Group205,759$47.3M0.06%––