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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 2024

Institutional positions in Aon plc as of Mar 31, 2024. 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
1,087
+35 vs. Q4 2023
Shares held
172.0M
+784.0K (+0.5%) vs. Q4 2023
Total value
$57.4B
+$7.55B (+15.2%) vs. Q4 2023
New holders
133
358 more added
Sold out
98
415 more reduced

15 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2024: 1,087 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 2024: $57.4B
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 2024

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q4 2023.

Institutions holding AON in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Teacher Retirement System of Texas59,621$19.9M0.13%−12,689−17.5%Reduced
American International Group, Inc.60,079$20.0M0.07%−664−1.1%Reduced
Wealth Enhancement Advisory Services, LLC60,512$20.2M0.05%−1,282−2.1%Reduced
Cresset Asset Management, LLC60,797$20.3M0.10%+13,801+29.4%Added
Pictet & Cie (Europe) SA62,213$20.8M0.54%+10,748+20.9%Added
Todd Asset Management LLC62,311$20.8M0.43%+5,629+9.9%Added
Financiere des Professionnels - Fonds d,investissement inc.63,537$21.2M1.71%+6,812+12.0%Added
SG Americas Securities, LLC64,263$21.4M0.11%+55,977+675.6%Added
AXA S.A.64,947$21.7M0.06%+6,230+10.6%Added
LTS One Management LP65,000$21.7M5.63%+65,000New
Banque Pictet & Cie SA65,844$22.0M0.23%+4,979+8.2%Added
Vident Advisory, LLC66,620$22.2M0.46%+59,661+857.3%Added
Capital International Inc66,672$22.2M0.30%+3,853+6.1%Added
Handelsbanken Fonder AB67,114$22.4M0.10%−5,110−7.1%Reduced
STRS Ohio69,894$23.3M0.09%−2,086−2.9%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)69,945$23.3M0.08%+4,796+7.4%Added
Capital International Sarl70,289$23.5M0.78%−538−0.8%Reduced
Rafferty Asset Management, LLC70,416$23.5M0.09%−559−0.8%Reduced
JLB & Associates Inc70,763$23.6M3.14%−58−0.1%Reduced
Bank of Nova Scotia71,979$24.0M0.05%−32,465−31.1%Reduced
TD Asset Management Inc73,394$24.5M0.02%−538−0.7%Reduced
Mediolanum International Funds Ltd74,128$24.7M0.40%+74,128New
Robeco Institutional Asset Management B.V.75,247$25.1M0.05%−51,439−40.6%Reduced
Victory Capital Management Inc75,431$25.2M0.02%−1,164−1.5%Reduced
LFL Advisers, LLC79,564$26.6M9.58%+6,724+9.2%Added
Royal London Asset Management Ltd80,827$27.0M0.07%−2,175−2.6%Reduced
Mn Services Vermogensbeheer B.V.81,000$27.0M0.20%+81,000New
Brinker Capital Investments, LLC81,690$27.3M0.29%+3,102+3.9%Added
Orion Portfolio Solutions, LLC81,690$27.3M0.29%+3,102+3.9%Added
Millennium Management LLC82,325$27.5M0.02%−267,465−76.5%Reduced
Advisors Capital Management, LLC82,327$27.5M0.50%+2,530+3.2%Added
CI Private Wealth, LLC82,922$27.7M0.05%−2,119−2.5%Reduced
Asset Management One Co.,Ltd.83,631$27.9M0.11%−4,701−5.3%Reduced
Standard Life Aberdeen plc84,278$28.1M0.06%−6,540−7.2%Reduced
Border to Coast Pensions Partnership Ltd85,176$28.4M0.63%00.0%Unchanged
Squarepoint Ops LLC87,028$29.0M0.12%−142,450−62.1%Reduced
AQR Capital Management LLC88,661$29.6M0.05%−24,800−21.9%Reduced
Treasurer of the State of North Carolina90,975$30.4M0.13%+530+0.6%Added
Gateway Investment Advisers LLC93,895$31.3M0.36%−30.0%Reduced
CIBC World Markets Corp94,868$31.7M0.21%+48,356+104.0%Added
Citadel Advisors LLC97,178$32.4M0.03%−138,214−58.7%Reduced
Connectus Wealth, LLC98,907$33.0M0.90%−229−0.2%Reduced
CIBC Private Wealth Group, LLC101,325$33.4M0.07%−13,765−12.0%Reduced
Dudley & Shanley, Inc.100,528$33.5M5.66%−7,650−7.1%Reduced
Public Employees Retirement System of Ohio100,819$33.6M0.13%−8,165−7.5%Reduced
Petrus Trust Company, LTA101,715$33.9M3.07%+215+0.2%Added
Waters Parkerson & Co., LLC101,881$34.0M1.75%+365+0.4%Added
Verition Fund Management LLC102,286$34.1M0.33%+95,241+1,351.9%Added
Intech Investment Management LLC102,873$34.3M0.48%+36,387+54.7%Added
State of Tennessee, Treasury Department103,362$34.5M0.13%+13,707+15.3%Added
Williams Jones Wealth Management, LLC.103,706$34.6M0.44%−9,340−8.3%Reduced
Swedbank AB104,242$34.8M0.05%−25,581−19.7%Reduced
Voya Investment Management LLC107,952$36.0M0.04%−345,559−76.2%Reduced
Ironvine Capital Partners, LLC108,125$36.1M3.96%+228+0.2%Added
State of Wisconsin Investment Board108,355$36.2M0.10%−10,511−8.8%Reduced
Markel Group Inc.SuperinvestorMarkel Group110,050$36.7M0.36%+4,700+4.5%Added
Chevy Chase Trust Holdings, Inc.110,872$37.0M0.12%−970−0.9%Reduced
Obermeyer Wood Investment Counsel, LLLP112,774$37.6M2.22%−52,722−31.9%Reduced
Nomura Asset Management Co Ltd112,914$37.7M0.14%+44,539+65.1%Added
Pensioenfonds Rail & Ov113,764$38.0M2.76%−36,131−24.1%Reduced
Danske Bank A/S114,244$38.1M0.12%+114,244New
Toronto Dominion Bank115,094$38.4M0.06%−14,995−11.5%Reduced
HSBC Holdings PLC115,225$38.5M0.03%−180,015−61.0%Reduced
Davis R M Inc115,503$38.5M0.81%+1,170+1.0%Added
State of New Jersey Common Pension Fund D116,545$38.9M0.12%00.0%Unchanged
TCTC Holdings, LLC120,000$40.0M1.33%00.0%Unchanged
Gluskin Sheff & Assoc Inc122,648$40.9M4.09%+7,489+6.5%Added
Spears Abacus Advisors LLC123,206$41.1M0.85%+1,889+1.6%Added
The PNC Financial Services Group, Inc.123,581$41.2M0.03%+7,917+6.8%Added
Frontier Capital Management Co LLC126,135$42.1M0.39%−10,429−7.6%Reduced
Citigroup Inc127,279$42.5M0.05%−30,539−19.4%Reduced
Mitsubishi UFJ Trust & Banking Corp130,995$43.7M0.10%−23,467−15.2%Reduced
APG Asset Management N.V.147,705$45.6M0.08%−647−0.4%Reduced
Ycg, LLC140,355$45.7M3.63%−1,429−1.0%Reduced
GFI Investment Counsel Ltd.139,054$46.4M5.88%+8,085+6.2%Added
CapitalatWork S.A.142,580$47.6M1.59%+1,060+0.7%Added
Night Owl Capital Management, LLC143,499$47.9M7.27%+46,692+48.2%Added
HM Payson & Co147,662$49.3M0.92%−36,691−19.9%Reduced
Central Securities Corp150,000$50.1M5.05%00.0%Unchanged
SRB Corp153,426$51.2M2.84%−94,025−38.0%Reduced
Stifel Financial Corp154,676$51.6M0.06%−41,821−21.3%Reduced
Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management158,300$52.8M2.67%+13,650+9.4%Added
CIBC Asset Management Inc159,197$53.1M0.18%−9,277−5.5%Reduced
Storebrand Asset Management AS166,721$55.6M0.19%−7,961−4.6%Reduced
Artemis Investment Management LLP168,901$56.3M0.73%+14,292+9.2%Added
Korea Investment CORP176,605$58.9M0.15%−898−0.5%Reduced
Raymond James & Associates178,914$59.7M0.04%+10,193+6.0%Added
Man Group plc184,221$61.5M0.17%−43,426−19.1%Reduced
New York State Teachers Retirement System184,641$61.6M0.13%−5,845−3.1%Reduced
Broad Run Investment Management, LLC187,401$62.5M7.68%−1,738−0.9%Reduced
Woodline Partners LP199,078$66.4M0.61%+199,078New
Cooper Investors Pty Ltd205,299$68.5M3.95%−8,964−4.2%Reduced
Bowie Capital Management, LLC212,395$70.9M5.83%+42,273+24.8%Added
State Board of Administration of Florida Retirement System227,465$71.7M0.17%+17,452+8.3%Added
Alliancebernstein L.P.219,168$73.1M0.03%−12,618−5.4%Reduced
Zurich Insurance Group Ltd219,237$73.2M0.67%+137,405+167.9%Added
Renaissance Technologies LLC221,701$74.0M0.12%+92,261+71.3%Added
SEI Investments Co226,616$75.6M0.11%−40,672−15.2%Reduced
Nicholas Company, Inc.228,245$76.2M1.26%00.0%Unchanged
Ensign Peak Advisors, Inc235,519$78.6M0.14%+31,407+15.4%Added