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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, Q3 2024

Institutional positions in Aon plc as of Sep 30, 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
1,149
+51 vs. Q2 2024
Shares held
190.7M
+17.5M (+10.1%) vs. Q2 2024
Total value
$66.1B
+$15.2B (+30.0%) vs. Q2 2024
New holders
130
409 more added
Sold out
79
376 more reduced

13 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2024: 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 holdersQ3 2024: 1,149 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 heldQ3 2024: $66.1B
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, Q3 2024

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q2 2024.

Institutions holding AON in Q3 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Treasurer of the State of North Carolina96,165$33.3M0.13%+2,900+3.1%Added
Vontobel Holding Ltd.96,321$33.3M0.11%+57,847+150.4%Added
CI Private Wealth, LLC98,071$33.9M0.05%−2,021−2.0%Reduced
Artemis Investment Management LLP98,209$34.0M0.52%+4,666+5.0%Added
Dudley & Shanley, Inc.98,440$34.1M5.32%00.0%Unchanged
Pensioenfonds Rail & Ov98,574$34.1M2.37%−15,190−13.4%Reduced
Central Securities Corp100,000$34.6M3.36%00.0%Unchanged
CIBC Private Wealth Group, LLC103,701$35.9M0.06%+1,187+1.2%Added
Cresset Asset Management, LLC105,050$36.3M0.14%−5,212−4.7%Reduced
State of Tennessee, Treasury Department106,449$36.8M0.13%−10,858−9.3%Reduced
Ironvine Capital Partners, LLC106,649$36.9M3.96%+231+0.2%Added
Obermeyer Wood Investment Counsel, LLLP110,164$38.1M2.04%−2,428−2.2%Reduced
State of Wisconsin Investment Board111,801$38.7M0.10%+4,801+4.5%Added
Mitsubishi UFJ Trust & Banking Corp113,620$39.3M0.09%−781−0.7%Reduced
Chevy Chase Trust Holdings, Inc.119,549$41.4M0.13%−2,238−1.8%Reduced
TCTC Holdings, LLC120,000$41.5M1.41%00.0%Unchanged
Senator Investment Group LP120,000$41.5M1.97%+120,000New
Markel Group Inc.SuperinvestorMarkel Group120,150$41.6M0.37%+6,200+5.4%Added
Davis R M Inc125,870$43.5M0.84%+8,544+7.3%Added
HM Payson & Co127,396$44.1M0.76%−28,744−18.4%Reduced
Petrus Trust Company, LTA127,500$44.1M4.30%−15,464−10.8%Reduced
Citigroup Inc129,742$44.9M0.04%−28,825−18.2%Reduced
Spears Abacus Advisors LLC131,654$45.6M0.90%+6,626+5.3%Added
Pictet Asset Management Holding SA133,783$46.3M0.05%−16,396−10.9%Reduced
The PNC Financial Services Group, Inc.134,389$46.5M0.03%+551+0.4%Added
Gluskin Sheff & Assoc Inc141,017$49.0M5.73%+43,776+45.0%Added
Night Owl Capital Management, LLC145,750$50.4M6.90%+4,517+3.2%Added
Summit Trail Advisors, LLC146,258$50.6M1.25%−78,873−35.0%Reduced
Ceredex Value Advisors LLC147,799$51.1M1.00%−32,572−18.1%Reduced
Ycg, LLC149,372$51.7M3.99%+8,487+6.0%Added
Moore Capital Management, LP149,901$51.9M1.50%+16,061+12.0%Added
Frontier Capital Management Co LLC152,997$52.9M0.50%+32,538+27.0%Added
Stifel Financial Corp153,511$53.1M0.06%+12,564+8.9%Added
Storebrand Asset Management AS153,910$53.3M0.17%−273−0.2%Reduced
Oribel Capital Management, LP154,000$53.3M5.82%+154,000New
Citadel Advisors LLC154,891$53.6M0.06%+6,956+4.7%Added
GFI Investment Counsel Ltd.155,154$53.7M6.23%+2,388+1.6%Added
CapitalatWork S.A.157,319$54.4M1.85%−5,800−3.6%Reduced
Korea Investment CORP158,438$54.8M0.13%+42,208+36.3%Added
Gillson Capital LP160,399$55.5M5.05%+160,399New
Canada Pension Plan Investment Board164,577$56.9M0.05%−43,445−20.9%Reduced
Nomura Asset Management Co Ltd165,741$57.3M0.18%+20,084+13.8%Added
New York State Teachers Retirement System169,304$58.6M0.12%−4,054−2.3%Reduced
Broad Run Investment Management, LLC169,626$58.7M7.08%−12,293−6.8%Reduced
Renaissance Technologies LLC181,301$62.7M0.09%+103,300+132.4%Added
D. E. Shaw & Co., Inc.182,085$63.0M0.08%+59,714+48.8%Added
CIBC Asset Management Inc186,156$64.3M0.21%−289−0.2%Reduced
State Board of Administration of Florida Retirement System188,843$65.3M0.12%−1,986−1.0%Reduced
Verition Fund Management LLC190,081$65.8M0.45%−14,291−7.0%Reduced
Capital Group Private Client Services, Inc.201,667$69.8M0.66%−39,168−16.3%Reduced
Ensign Peak Advisors, Inc208,754$72.2M0.13%−7,356−3.4%Reduced
Bain Capital Public Equity Management II, LLC211,172$73.1M3.32%+211,172New
Aviva PLC214,910$74.4M0.19%−41,068−16.0%Reduced
Raymond James & Associates215,322$74.5M0.05%+12,850+6.3%Added
Alliancebernstein L.P.220,408$76.3M0.03%−2,595−1.2%Reduced
Nicholas Company, Inc.228,305$79.0M1.29%+600.0%Added
Lord, Abbett & Co. LLC229,458$79.4M0.25%+229,458New
SEI Investments Co238,813$82.6M0.11%+3,550+1.5%Added
Altrinsic Global Advisors LLC247,546$85.6M3.64%−8,461−3.3%Reduced
Scharf Investments, LLC250,739$86.8M2.39%+10,314+4.3%Added
Principal Financial Group Inc254,481$88.0M0.05%−634,688−71.4%Reduced
Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management260,950$90.3M4.45%00.0%Unchanged
Prana Capital Management, LP262,934$91.0M4.17%−41,956−13.8%Reduced
Bowie Capital Management, LLC263,381$91.1M5.13%+900+0.3%Added
Russell Investments Group, Ltd.263,476$91.2M0.13%−69,809−20.9%Reduced
Voloridge Investment Management, LLC264,773$91.6M0.33%+116,661+78.8%Added
DekaBank Deutsche Girozentrale275,444$95.2M0.18%+35,026+14.6%Added
New York State Common Retirement Fund279,948$96.9M0.13%−24,057−7.9%Reduced
Davenport & Co LLC280,947$97.3M0.57%−3,185−1.1%Reduced
Wealthspire Advisors, LLC282,579$97.8M0.99%−21,696−7.1%Reduced
Natixis Advisors, L.P.287,451$99.5M0.19%−15,281−5.0%Reduced
Millennium Management LLC293,590$101.6M0.09%+53,903+22.5%Added
BloombergSen Inc.294,606$101.9M8.59%00.0%Unchanged
Wells Fargo & Company295,619$102.3M0.02%−5,688−1.9%Reduced
Kovitz Investment Group Partners, LLC301,514$102.5M0.73%−35,083−10.4%Reduced
Woodline Partners LP309,754$107.2M0.91%+196,602+173.8%Added
California State Teachers Retirement System322,109$111.4M0.13%−3,934−1.2%Reduced
Deutsche Bank AG336,672$116.5M0.05%+25,495+8.2%Added
Haverford Trust Co337,040$116.6M1.14%+1,090+0.3%Added
Royal Bank of Canada345,193$119.4M0.03%−48,708−12.4%Reduced
Voya Investment Management LLC356,387$123.3M0.13%+259,551+268.0%Added
Douglass Winthrop Advisors, LLC372,419$128.9M2.46%+5,399+1.5%Added
Fiducient Advisors LLC374,391$129.5M14.96%+2,000+0.5%Added
Rhumbline Advisers374,804$129.7M0.12%−9,755−2.5%Reduced
Envestnet Asset Management Inc375,150$129.8M0.04%+16,185+4.5%Added
National Pension Service394,556$136.5M0.13%+23,913+6.5%Added
Sumitomo Mitsui Trust Holdings, Inc.454,533$157.3M0.11%+909+0.2%Added
Fiera Capital Corp484,561$167.7M0.50%−45,824−8.6%Reduced
Assenagon Asset Management S.A.545,210$188.6M0.39%+124,454+29.6%Added
Balyasny Asset Management LLC550,736$190.5M0.49%+543,749+7,782.3%Added
UBS Group AG562,059$194.5M0.05%+18,782+3.5%Added
Bank of Montreal559,993$194.7M0.09%+115,519+26.0%Added
Viking Global Investors LPSuperinvestorViking Global Investors563,027$194.8M0.71%+563,027New
Swiss National Bank580,900$201.0M0.13%−6,900−1.2%Reduced
Blair William & Co592,550$205.0M0.60%−9,967−1.7%Reduced
Omers Administration Corp601,203$208.0M1.91%00.0%Unchanged
International Assets Investment Management, LLC261,870$210.2M0.96%+261,870New
FMR LLC628,956$217.6M0.01%+174,838+38.5%Added
USS Investment Management Ltd646,941$223.8M1.64%−702−0.1%Reduced
Dimensional Fund Advisors LP666,779$230.7M0.06%+10,835+1.7%Added