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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 2023

Institutional positions in Aon plc as of Dec 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
1,067
+35 vs. Q3 2023
Shares held
171.3M
−2.61M (−1.5%) vs. Q3 2023
Total value
$49.8B
−$6.57B (−11.6%) vs. Q3 2023
New holders
123
341 more added
Sold out
88
403 more reduced

17 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2023: 1,067 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 heldQ4 2023: $49.8B
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, Q4 2023

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q3 2023.

Institutions holding AON in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Korea Investment CORP177,503$51.7M0.14%−17,368−8.9%Reduced
Storebrand Asset Management AS174,682$50.8M0.18%+12,785+7.9%Added
Bowie Capital Management, LLC170,122$49.5M5.59%+22,860+15.5%Added
Prana Capital Management, LP169,112$49.2M2.90%+52,004+44.4%Added
Raymond James & Associates168,721$49.1M0.04%−21,222−11.2%Reduced
CIBC Asset Management Inc168,474$49.0M0.18%−7,893−4.5%Reduced
Obermeyer Wood Investment Counsel, LLLP165,496$48.2M3.29%−3,596−2.1%Reduced
Twinbeech Capital LP160,191$46.6M0.75%+127,013+382.8%Added
D. E. Shaw & Co., Inc.158,505$46.1M0.07%+123,618+354.3%Added
Citigroup Inc157,818$45.9M0.06%−118,081−42.8%Reduced
Gladstone Capital Management LLP156,730$45.6M5.34%−174,412−52.7%Reduced
Artemis Investment Management LLP154,609$45.0M0.66%−75,914−32.9%Reduced
Mitsubishi UFJ Trust & Banking Corp154,462$44.9M0.11%−2,042−1.3%Reduced
Kovitz Investment Group Partners, LLC151,888$44.2M0.73%+82+0.1%Added
Central Securities Corp150,000$43.7M4.74%00.0%Unchanged
Pensioenfonds Rail & Ov149,895$43.6M2.52%00.0%Unchanged
Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management144,650$42.1M2.22%00.0%Unchanged
Ycg, LLC141,784$41.3M3.42%−670.0%Reduced
CapitalatWork S.A.141,520$41.2M1.49%+141,520New
Frontier Capital Management Co LLC136,564$39.7M0.40%−118,037−46.4%Reduced
APG Asset Management N.V.148,352$39.1M0.08%−25,200−14.5%Reduced
Holocene Advisors, LP133,152$38.7M0.15%+103,449+348.3%Added
Tudor Investment Corp Et Al131,072$38.1M0.53%+125,084+2,088.9%Added
GFI Investment Counsel Ltd.130,969$38.1M5.27%+418+0.3%Added
Toronto Dominion Bank130,089$37.9M0.05%+31,264+31.6%Added
Swedbank AB129,823$37.8M0.06%+6,497+5.3%Added
Renaissance Technologies LLC129,440$37.7M0.06%+129,440New
Capital Fund Management S.A.127,539$37.1M0.47%+91,019+249.2%Added
Robeco Institutional Asset Management B.V.126,686$36.9M0.09%+56,795+81.3%Added
Spears Abacus Advisors LLC121,317$35.3M2.81%+2,472+2.1%Added
TCTC Holdings, LLC120,000$34.9M1.27%00.0%Unchanged
State of Wisconsin Investment Board118,866$34.6M0.10%+10,190+9.4%Added
State of New Jersey Common Pension Fund D116,545$33.9M0.11%00.0%Unchanged
The PNC Financial Services Group, Inc.115,664$33.7M0.03%+1,131+1.0%Added
Gluskin Sheff & Assoc Inc115,159$33.5M3.31%−14,065−10.9%Reduced
CIBC Private Wealth Group, LLC115,090$33.5M0.07%+135+0.1%Added
Davis R M Inc114,333$33.3M0.77%−9,021−7.3%Reduced
Williams Jones Wealth Management, LLC.113,046$32.9M0.46%+3,113+2.8%Added
AQR Capital Management LLC113,461$32.8M0.06%−13,377−10.5%Reduced
Chevy Chase Trust Holdings, Inc.111,842$32.5M0.12%−2,386−2.1%Reduced
Aquatic Capital Management LLC110,360$32.1M0.82%+107,880+4,350.0%Added
Public Employees Retirement System of Ohio108,984$31.7M0.13%−6,254−5.4%Reduced
Dudley & Shanley, Inc.108,178$31.5M5.61%−2,680−2.4%Reduced
Ironvine Capital Partners, LLC107,897$31.4M3.77%−7,368−6.4%Reduced
Night Owl Capital Management, LLC96,807$31.4M7.86%00.0%Unchanged
Markel Group Inc.SuperinvestorMarkel Group105,350$30.7M0.33%+5,800+5.8%Added
Bank of Nova Scotia104,444$30.4M0.06%+70,389+206.7%Added
Waters Parkerson & Co., LLC101,516$29.5M1.64%−1,199−1.2%Reduced
Petrus Trust Company, LTA101,500$29.5M2.80%+101,500New
Connectus Wealth, LLC99,136$28.9M0.59%−1,023−1.0%Reduced
Chilton Investment Co LLC95,695$27.8M0.82%−183,265−65.7%Reduced
Gateway Investment Advisers LLC93,898$27.3M0.32%−89−0.1%Reduced
Standard Life Aberdeen plc90,818$26.4M0.06%+37,825+71.4%Added
Treasurer of the State of North Carolina90,445$26.3M0.13%−1,590−1.7%Reduced
Natixis Investment Managers International89,735$26.1M1.85%+590+0.7%Added
State of Tennessee, Treasury Department89,655$26.1M0.10%+15,553+21.0%Added
Allianz Asset Management GmbH88,295$25.7M0.05%−41,951−32.2%Reduced
Asset Management One Co.,Ltd.88,332$25.6M0.10%−18,334−17.2%Reduced
Healthcare of Ontario Pension Plan Trust Fund87,000$25.3M0.09%+34,600+66.0%Added
Jane Street Group, LLC85,251$24.8M0.03%+23,441+37.9%Added
Border to Coast Pensions Partnership Ltd85,176$24.8M0.60%00.0%Unchanged
CI Private Wealth, LLC85,041$24.7M0.05%+46,102+118.4%Added
Royal London Asset Management Ltd83,002$24.2M0.07%+2,630+3.3%Added
Zurich Insurance Group Ltd81,832$23.8M0.24%−70,224−46.2%Reduced
Brinker Capital Investments, LLC78,588$23.2M0.27%−8,201−9.4%Reduced
Orion Portfolio Solutions, LLC78,588$23.2M0.27%−8,201−9.4%Reduced
Advisors Capital Management, LLC79,797$23.2M0.47%+2,905+3.8%Added
Susquehanna International Group, LLP79,609$23.2M0.04%−21,565−21.3%Reduced
DnB Asset Management AS79,531$23.1M0.12%+3,541+4.7%Added
Victory Capital Management Inc76,595$22.3M0.02%−22,597−22.8%Reduced
TD Asset Management Inc73,932$21.5M0.02%+8,396+12.8%Added
LFL Advisers, LLC72,840$21.2M9.21%00.0%Unchanged
Teacher Retirement System of Texas72,310$21.0M0.14%−10,641−12.8%Reduced
Handelsbanken Fonder AB72,224$21.0M0.10%+25,896+55.9%Added
STRS Ohio71,980$20.9M0.09%−3,302−4.4%Reduced
Rafferty Asset Management, LLC70,975$20.7M0.09%+2,890+4.2%Added
Capital International Sarl70,827$20.6M0.77%+3,009+4.4%Added
JLB & Associates Inc70,821$20.6M2.96%−581−0.8%Reduced
EULAV Asset Management69,700$20.3M0.63%00.0%Unchanged
Assenagon Asset Management S.A.68,760$20.0M0.06%−158,685−69.8%Reduced
Nomura Asset Management Co Ltd68,375$19.9M0.08%+1,243+1.9%Added
Intech Investment Management LLC66,486$19.3M0.28%+26,355+65.7%Added
Zurcher Kantonalbank (Zurich Cantonalbank)65,149$19.0M0.07%+117+0.2%Added
Abner Herrman & Brock LLC63,996$18.6M2.62%−768−1.2%Reduced
Capital International Inc62,819$18.3M0.29%+1,004+1.6%Added
Wealth Enhancement Advisory Services, LLC61,794$18.0M0.05%−2,967−4.6%Reduced
Vontobel Asset Management Inc61,571$17.9M0.11%−137,703−69.1%Reduced
Banque Pictet & Cie SA60,865$17.7M0.20%−1,423−2.3%Reduced
American International Group, Inc.60,743$17.7M0.07%−854−1.4%Reduced
Franklin Resources Inc59,680$17.4M0.01%−23,488−28.2%Reduced
Caisse de Depot Et Placement du Quebec58,749$17.1M0.04%+16,496+39.0%Added
AXA S.A.58,717$17.1M0.06%−8,122−12.2%Reduced
Prudential Financial Inc57,910$16.9M0.03%−17,049−22.7%Reduced
Worldquant Millennium Advisors LLC57,484$16.7M0.23%+57,484New
Arizona State Retirement System57,075$16.6M0.13%−737−1.3%Reduced
Financiere des Professionnels - Fonds d,investissement inc.56,725$16.5M1.45%−4,232−6.9%Reduced
Todd Asset Management LLC56,682$16.5M0.36%−1,141−2.0%Reduced
Bridgewater Associates, LP55,979$16.3M0.09%+54,322+3,278.3%Added
Nisa Investment Advisors, LLC55,733$16.2M0.11%−222−0.4%Reduced
Forsta Ap-Fonden55,200$16.1M0.16%+8,000+16.9%Added