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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 2023

Institutional positions in Aon plc as of Mar 31, 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
1,014
−2 vs. Q4 2022
Shares held
176.8M
+1.64M (+0.9%) vs. Q4 2022
Total value
$55.7B
+$3.18B (+6.1%) vs. Q4 2022
New holders
77
341 more added
Sold out
79
403 more reduced

18 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2022: 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 2023: 1,014 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 2023: $55.7B
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 20261,266$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 2023

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q4 2022.

Institutions holding AON in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Obermeyer Wood Investment Counsel, LLLP179,366$56.8M4.24%−13,721−7.1%Reduced
UBS Group AG179,722$56.7M0.03%−7,242−3.9%Reduced
Aviva PLC171,674$54.1M0.25%+140,112+443.9%Added
Kovitz Investment Group Partners, LLC161,359$50.9M0.88%−65,793−29.0%Reduced
Panagora Asset Management Inc154,674$48.8M0.31%+30,228+24.3%Added
Mitsubishi UFJ Trust & Banking Corp154,575$48.7M0.12%+4,551+3.0%Added
Gluskin Sheff & Assoc Inc152,709$48.1M2.62%+37,046+32.0%Added
Storebrand Asset Management AS151,498$47.8M0.24%−1,054−0.7%Reduced
Pictet Asset Management SA151,060$47.6M0.06%+12,597+9.1%Added
Central Securities Corp150,000$47.3M5.90%00.0%Unchanged
Bowie Capital Management, LLC149,640$47.2M6.69%+2,965+2.0%Added
Ycg, LLC149,639$47.2M4.61%−1,074−0.7%Reduced
Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management145,400$45.8M2.64%−2,500−1.7%Reduced
AustralianSuper Pty Ltd138,837$43.8M0.30%+138,837New
AQR Capital Management LLC135,254$42.6M0.09%−10,940−7.5%Reduced
Victory Capital Management Inc133,120$42.0M0.05%+53,512+67.2%Added
Fiera Capital Corp132,564$41.8M0.12%−1,038−0.8%Reduced
State of Wisconsin Investment Board131,517$41.5M0.12%+18,926+16.8%Added
CIBC Private Wealth Group, LLC131,099$41.3M0.12%+401+0.3%Added
Davis R M Inc131,095$41.3M1.05%−3,170−2.4%Reduced
Franklin Resources Inc127,622$40.2M0.02%+35,339+38.3%Added
Altrinsic Global Advisors LLC127,250$40.1M1.55%−2,516−1.9%Reduced
Intech Investment Management LLC121,739$38.4M0.31%−19,088−13.6%Reduced
State of New Jersey Common Pension Fund D121,598$38.3M0.14%−1,372−1.1%Reduced
Swedbank AB120,835$38.1M0.08%−19,594−14.0%Reduced
KBC Group NV120,628$38.0M0.16%+30,839+34.3%Added
TCTC Holdings, LLC120,000$37.8M1.52%00.0%Unchanged
Chevy Chase Trust Holdings, Inc.119,559$37.7M0.15%+391+0.3%Added
The PNC Financial Services Group, Inc.117,986$37.2M0.03%−3,234−2.7%Reduced
Spears Abacus Advisors LLC117,583$37.1M3.32%−111−0.1%Reduced
Ironvine Capital Partners, LLC116,120$36.6M4.62%−5,406−4.4%Reduced
Connectus Wealth, LLC111,210$35.1M0.86%−2,444−2.2%Reduced
Dudley & Shanley, Inc.110,648$34.9M6.69%−3,670−3.2%Reduced
Williams Jones Wealth Management, LLC.109,246$34.4M0.54%−1,847−1.7%Reduced
Millennium Management LLC107,522$33.9M0.04%−18,281−14.5%Reduced
Asset Management One Co.,Ltd.106,796$33.7M0.15%+1,601+1.5%Added
Thornburg Investment Management Inc105,481$33.3M0.55%−4,339−4.0%Reduced
Susquehanna International Group, LLP105,136$33.1M0.05%+14,239+15.7%Added
Waters Parkerson & Co., LLC104,569$33.0M1.95%−63−0.1%Reduced
EULAV Asset Management101,700$32.1M1.26%+6,000+6.3%Added
Night Owl Capital Management, LLC99,670$31.4M11.36%−983−1.0%Reduced
STRS Ohio97,473$30.7M0.13%+166+0.2%Added
Treasurer of the State of North Carolina95,140$30.0M0.17%−1,930−2.0%Reduced
Gateway Investment Advisers LLC94,554$29.8M0.36%−1,701−1.8%Reduced
Natixis Investment Managers International94,450$29.8M2.25%+94,450New
1832 Asset Management L.P.87,939$27.7M0.06%−6,895−7.3%Reduced
Brinker Capital Investments, LLC86,659$27.3M0.35%+13,180+17.9%Added
Orion Portfolio Solutions, LLC86,659$27.3M0.35%+84,927+4,903.4%Added
Markel Group Inc.SuperinvestorMarkel Group86,550$27.3M0.35%+6,500+8.1%Added
Ninety One UK Ltd86,243$27.2M0.08%−53,403−38.2%Reduced
DekaBank Deutsche Girozentrale86,311$26.8M0.07%+1,780+2.1%Added
Allianz Asset Management GmbH82,047$25.9M0.05%+61,662+302.5%Added
Prudential Financial Inc88,424$25.4M0.04%+5,555+6.7%Added
Teacher Retirement System of Texas79,102$24.9M0.17%+17,155+27.7%Added
LFL Advisers, LLC76,500$24.1M10.82%00.0%Unchanged
DnB Asset Management AS75,826$23.9M0.15%−1,546−2.0%Reduced
JLB & Associates Inc75,361$23.8M3.58%−773−1.0%Reduced
Citadel Advisors LLC75,123$23.7M0.03%−100,149−57.1%Reduced
Royal London Asset Management Ltd74,842$23.6M0.09%+1,400+1.9%Added
Advisors Capital Management, LLC73,888$23.3M0.60%+302+0.4%Added
First Trust Advisors LP72,823$23.0M0.03%+43,255+146.3%Added
Rafferty Asset Management, LLC69,216$21.8M0.15%−10,454−13.1%Reduced
Banque Pictet & Cie SA68,218$21.5M0.21%−1,267−1.8%Reduced
TD Asset Management Inc68,108$21.5M0.03%−48−0.1%Reduced
Abner Herrman & Brock LLC66,859$21.1M3.18%−133−0.2%Reduced
Capital Group Investment Management Pte. Ltd.65,514$20.7M1.10%−32,109−32.9%Reduced
Capital International Inc63,238$19.9M0.40%−17,385−21.6%Reduced
American International Group, Inc.62,655$19.8M0.13%−132−0.2%Reduced
Standard Life Aberdeen plc62,520$19.7M0.05%−2,854−4.4%Reduced
Qube Research & Technologies Ltd62,321$19.6M0.11%−105,464−62.9%Reduced
Retirement Systems of Alabama60,710$19.1M0.08%−61,458−50.3%Reduced
MetLife Investment Management60,705$19.1M0.14%−966−1.6%Reduced
Oribel Capital Management, LP125,700$18.9M4.28%+125,700New
Zurcher Kantonalbank (Zurich Cantonalbank)59,652$18.8M0.09%+4,395+8.0%Added
Capital International Sarl59,275$18.7M0.94%+29,464+98.8%Added
Kerrisdale Advisers, LLC58,529$18.5M5.46%+8,471+16.9%Added
Nisa Investment Advisors, LLC58,448$18.4M0.14%+4,369+8.1%Added
M&T Bank Corp58,424$18.4M0.07%−11,520−16.5%Reduced
Todd Asset Management LLC58,185$18.3M0.44%+291+0.5%Added
Amalgamated Bank57,175$18.0M0.15%+1,097+2.0%Added
Arizona State Retirement System56,480$17.8M0.16%−992−1.7%Reduced
State of Michigan Retirement System56,358$17.8M0.12%+100+0.2%Added
Segall Bryant & Hamill, LLC56,326$17.8M0.19%−2,711−4.6%Reduced
CIBC World Markets Inc.55,113$17.4M0.06%+14,074+34.3%Added
Trinity Street Asset Management LLP54,786$17.3M1.93%−755−1.4%Reduced
Nomura Asset Management Co Ltd54,654$17.2M0.09%−163−0.3%Reduced
Kiwi Wealth Investments Limited Partnership53,369$16.8M1.09%−371−0.7%Reduced
LPL Financial LLC52,168$16.4M0.01%−3,169−5.7%Reduced
Tower Bridge Advisors52,113$16.4M1.35%−4,110−7.3%Reduced
Jane Street Group, LLC51,974$16.4M0.03%+15,361+42.0%Added
Greenwood Gearhart Inc51,698$16.3M2.07%+846+1.7%Added
Marathon Asset Mgmt Ltd51,538$16.2M0.45%−14,983−22.5%Reduced
Squarepoint Ops LLC50,858$16.0M0.11%−17,469−25.6%Reduced
First Republic Investment Management, Inc.50,716$16.0M0.03%−6,014−10.6%Reduced
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund50,185$15.8M0.21%−1,400−2.7%Reduced
Teachers Retirement System of the State of Kentucky50,088$15.8M0.16%00.0%Unchanged
Avalon Trust Co50,008$15.8M1.56%+50,008New
Susquehanna Fundamental Investments, LLC49,565$15.6M0.36%−7,931−13.8%Reduced
Cullen/Frost Bankers, Inc.49,239$15.5M0.28%+239+0.5%Added
State of Tennessee, Treasury Department49,205$15.5M0.07%−887−1.8%Reduced