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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 2022

Institutional positions in Aon plc as of Mar 31, 2022. 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
985
+2 vs. Q4 2021
Shares held
188.2M
−117.9K (−0.1%) vs. Q4 2021
Total value
$61.2B
+$4.73B (+8.4%) vs. Q4 2021
New holders
94
324 more added
Sold out
92
369 more reduced

12 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2021: 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 2022: 985 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 2022: $61.2B
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 2022

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q4 2021.

Institutions holding AON in Q1 2022
InstitutionSharesValue% of portfolioChange in sharesAction
State Board of Administration of Florida Retirement System262,379$85.4M0.17%−5,800−2.2%Reduced
Alliancebernstein L.P.274,092$89.3M0.03%−7,749−2.7%Reduced
Nicholas Company, Inc.278,845$90.8M1.62%+395+0.1%Added
CIBC World Markets Corp279,905$91.1M0.72%−97,073−25.8%Reduced
Manufacturers Life Insurance Company, The280,962$91.5M0.06%+113,335+67.6%Added
APG Asset Management N.V.330,904$96.8M0.18%−5,000−1.5%Reduced
Jackson Square Partners, LLC302,985$98.7M0.98%+190.0%Added
Macquarie Group Ltd317,421$103.4M0.09%−111,280−26.0%Reduced
Amundi322,047$107.4M0.07%−161,036−33.3%Reduced
Capital International Inc331,200$107.8M1.21%−10,350−3.0%Reduced
Polar Capital Holdings Plc337,500$109.9M0.65%00.0%Unchanged
Rhumbline Advisers343,072$111.7M0.14%+6,076+1.8%Added
Douglass Winthrop Advisors, LLC345,421$112.5M2.66%+2,169+0.6%Added
Swedbank AB348,784$113.6M0.21%−40,500−10.4%Reduced
Tesco Pension Investment Ltd349,809$113.9M2.78%−110,424−24.0%Reduced
Atlanta Capital Management Co L L C350,819$114.2M0.42%+2,226+0.6%Added
Russell Investments Group, Ltd.353,803$115.2M0.20%−99,228−21.9%Reduced
Omers Administration Corp373,137$121.5M1.56%+80,600+27.6%Added
California State Teachers Retirement System375,334$122.2M0.16%+25,901+7.4%Added
Wells Fargo & Company395,330$128.7M0.03%−44,744−10.2%Reduced
Frontier Capital Management Co LLC407,662$132.7M1.20%−64,523−13.7%Reduced
Pensioenfonds Rail & Ov418,010$136.1M3.45%00.0%Unchanged
Barclays PLC422,327$137.5M0.11%+422,327New
Broad Run Investment Management, LLC422,872$137.7M9.74%−77,445−15.5%Reduced
Capital Group Private Client Services, Inc.435,943$142.0M1.55%−108,398−19.9%Reduced
Natixis Advisors, L.P.456,668$148.7M0.57%+40,557+9.7%Added
Altrinsic Global Advisors LLC469,078$152.7M5.34%−14,444−3.0%Reduced
DSM Capital Partners LLC471,113$153.4M2.05%−28,394−5.7%Reduced
Credit Suisse AG491,652$160.1M0.14%−910−0.2%Reduced
JPMorgan Chase & Co521,257$169.7M0.02%+221,039+73.6%Added
BloombergSen Inc.535,352$174.3M10.94%−2,593−0.5%Reduced
Ameriprise Financial Inc551,714$179.5M0.05%+66,373+13.7%Added
Bessemer Group Inc581,105$189.2M0.40%+105,455+22.2%Added
Vaughan Nelson Investment Management, L.P.604,369$196.8M2.24%−38,654−6.0%Reduced
Ensign Peak Advisors, Inc630,771$205.4M0.42%+65,590+11.6%Added
Allianz Asset Management GmbH654,247$213.0M0.17%+80,514+14.0%Added
Deutsche Bank AG713,781$232.4M0.11%−35,117−4.7%Reduced
Blair William & Co733,424$238.8M0.84%+4,224+0.6%Added
New York State Common Retirement Fund785,229$255.7M0.27%+680.0%Added
Goldman Sachs Group Inc804,146$261.9M0.07%−172,962−17.7%Reduced
Morgan Stanley817,263$266.1M0.04%−150,066−15.5%Reduced
Parametric Portfolio Associates LLC828,990$269.9M0.14%+35,797+4.5%Added
Sumitomo Mitsui Trust Holdings, Inc.861,318$280.5M0.19%+861,318New
Royal Bank of Canada862,268$280.8M0.07%−392,996−31.3%Reduced
Principal Financial Group Inc873,986$284.6M0.18%−778−0.1%Reduced
First Pacific Advisors, LP916,257$298.4M3.84%−134,059−12.8%Reduced
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main945,254$307.8M0.47%−105,798−10.1%Reduced
Swiss National Bank954,374$310.8M0.18%+96,300+11.2%Added
Boston Partners984,224$320.5M0.39%+22,506+2.3%Added
Polen Capital Management LLC984,696$320.6M0.63%−57,712−5.5%Reduced
Farallon Capital Management, L.L.C.1,013,986$330.2M1.82%−179,500−15.0%Reduced
FMR LLC1,030,060$335.4M0.03%+89,966+9.6%Added
Charles Schwab Investment Management Inc1,035,521$337.2M0.10%+4,570+0.4%Added
Norges Bank1,069,275$348.2M0.08%+172,464+19.2%Added
Dimensional Fund Advisors LP1,074,886$350.0M0.11%−86,021−7.4%Reduced
Price T Rowe Associates Inc1,207,436$393.2M0.04%−24,937−2.0%Reduced
Cantillon Capital Management LLC1,240,000$403.8M2.88%+35,910+3.0%Added
UBS Asset Management Americas Inc1,282,033$417.5M0.18%−13,747−1.1%Reduced
California Public Employees Retirement System1,301,040$423.7M0.33%−32,727−2.5%Reduced
GQG Partners LLC1,473,892$479.9M1.11%+8,072+0.6%Added
Viking Global Investors LPSuperinvestorViking Global Investors1,593,080$518.8M2.10%+82,563+5.5%Added
Invesco Ltd.1,601,088$521.4M0.13%+134,256+9.2%Added
Legal & General Group Plc1,623,000$528.5M0.16%+59,581+3.8%Added
Janus Henderson Group PLC1,930,031$628.5M0.30%−642,861−25.0%Reduced
Bank of New York Mellon Corp2,116,484$689.2M0.13%−147,046−6.5%Reduced
Independent Franchise Partners LLP2,212,861$720.6M5.69%−110,993−4.8%Reduced
Bank of America Corp2,294,504$747.2M0.08%−164,430−6.7%Reduced
Artisan Partners Limited Partnership2,461,257$801.5M1.06%+122,984+5.3%Added
Mackenzie Financial Corp2,464,121$802.4M1.08%+121,200+5.2%Added
Longview Partners (Guernsey) LTD2,492,419$811.6M5.31%−167,891−6.3%Reduced
Neuberger Berman Group LLC2,520,919$820.9M0.70%−169,687−6.3%Reduced
Wellington Management Group LLP2,609,464$849.7M0.15%−10,826−0.4%Reduced
Northern Trust Corp2,803,734$913.0M0.16%−66,872−2.3%Reduced
Geode Capital Management, LLC3,553,482$1.15B0.14%+55,110+1.6%Added
Berkshire Hathaway IncSuperinvestorBerkshire Hathaway4,396,000$1.43B0.39%00.0%Unchanged
Eagle Capital Management LLC4,488,491$1.46B4.94%−191,546−4.1%Reduced
Lazard Asset Management LLC5,076,701$1.65B1.92%−289,601−5.4%Reduced
Capital International Investors5,484,505$1.79B0.41%−1,168,404−17.6%Reduced
Mawer Investment Management Ltd.5,558,240$1.81B8.60%−598,360−9.7%Reduced
WCM Investment Management, LLC5,879,340$1.91B5.35%+1,267,267+27.5%Added
Capital World Investors8,942,963$2.91B0.50%+4,535,747+102.9%Added
State Street Corp9,779,102$3.18B0.16%−258,303−2.6%Reduced
BlackRock Inc.14,259,360$4.64B0.13%−131,227−0.9%Reduced
Vanguard Group Inc17,897,636$5.83B0.14%+1,172,671+7.0%Added
Massachusetts Financial Services Co18,008,780$5.86B1.74%−72,154−0.4%Reduced
Arrowstreet Capital, Limited Partnership0$00.00%−1,284,035−100.0%Sold out
AustralianSuper Pty Ltd0$00.00%−116,142−100.0%Sold out
Marshall Wace, LLP0$00.00%−81,243−100.0%Sold out
Prana Capital Management, LP0$00.00%−55,286−100.0%Sold out
Voloridge Investment Management, LLC0$00.00%−52,155−100.0%Sold out
Nuveen Asset Management, LLC0$00.00%−50,339−100.0%Sold out
Jefferies Group LLC0$00.00%−47,240−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−37,510−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−36,400−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−22,106−100.0%Sold out
Duality Advisers, LP0$00.00%−15,382−100.0%Sold out
Capital Fund Management S.A.0$00.00%−14,754−100.0%Sold out
Quantbot Technologies LP0$00.00%−12,319−100.0%Sold out
Walleye Trading LLC0$00.00%−12,043−100.0%Sold out
K.J. Harrison & Partners Inc0$00.00%−10,000−100.0%Sold out