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Disclosery

AON AON PLC

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Stock (common), issuer CIK 315293

1,195 managers (1,225 13F filers) reported a position in AON shares at 2025-06-30, 194,126,985 shares in all. 92 filers opened a position and 135 filers sold out during the quarter.

Managers
1,195
13F filers
1,225
New
92
Added
431
Reduced
470
Sold out
135
Shares held by filers
194,126,985

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
VANGUARD GROUP INCgroup of 2 filers holding20,316,299$7.25B+516,913Timeline
BlackRock, Inc.in group BlackRock, Inc.15,930,760$5.68B0.11%+831,47513F-HRTimelineGroup
Capital World Investors12,144,237$4.33B0.63%+46,66013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY9,467,412$3.38B0.22%+741,10813F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP9,124,310$3.26B0.12%-49,47813F-HRTimelineGroup
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…8,952,011$3.19B1.01%-880,31613F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC5,588,279$1.99B0.14%+173,72213F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO4,699,602$1.68B0.12%-956,72113F-HRTimelineGroup
HPS Investment Partners, LLC4,243,321$1.51B99.49%-96,43813F-HRTimeline
Berkshire Hathaway Incin group Berkshire Hathaway Inc4,100,000$1.46B0.57%013F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp3,507,656$1.25B0.24%+473,59413F-HRTimelineGroup
Mawer Investment Management Ltd.2,971,533$1.06B5.38%-302,04113F-HRTimeline
Mitsubishi UFJ Trust & Banking Corpgroup of 2 filers holding2,822,346$1.01B+313,591Timeline
UBS Group AGgroup of 2 filers holding2,762,955$986M+86,933Timeline
POLEN CAPITAL MANAGEMENT LLC2,745,627$980M3.01%-262,09213F-HRTimeline
EAGLE CAPITAL MANAGEMENT LLC2,284,259$815M2.69%-339,23013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP2,268,683$809M0.11%-21,93613F-HRTimelineGroup
Artisan Partners Limited Partnership2,176,045$776M1.16%+40,21313F-HRTimeline
NORGES BANK2,115,346$755M0.09%+449,39813F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC2,080,814$742M0.57%-55,29313F-HR/ATimelineGroup
WCM INVESTMENT MANAGEMENT, LLC2,040,243$720M1.64%-11,57313F-HRTimeline
FARALLON CAPITAL MANAGEMENT, L.L.C.1,986,417$709M3.23%+624,67313F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Capital International Investorsgroup of 4 filers holding1,907,090$680M+38,345Timeline
Sustainable Growth Advisers, LP1,847,140$659M3.4%+254,17813F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC1,822,886$650M0.89%-418,06913F-HRTimelineGroup
Veritas Asset Management LLP1,720,988$614M6.14%-118,70913F-HRTimeline
Diamond Hill Capital Management, LLC (I…1,574,511$562M2.58%+361,91213F-HRTimeline
Boston Partnersin group Boston Trust Walden Corp1,481,152$529M0.59%-640,45513F-HR/ATimelineGroup
Independent Franchise Partners LLP1,480,916$528M3.51%-102,30513F-HRTimeline
FMR LLCin group FMR LLC1,457,728$520M0.03%+545,54713F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/1,423,988$508M0.04%-445,79113F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding1,353,955$483M+1,348,721Timeline
Longview Partners (Guernsey) LTDin group Longview Partners (Guernsey) …1,307,961$467M4.02%-73,38013F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc1,306,915$466M0.12%-14,27913F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co1,284,021$458M0.08%+30,02413F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,258,909$449M0.07%+134,60913F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.1,247,865$445M0.08%+89,72613F-HRTimelineGroup
Cantillon Capital Management LLCin group Cantillon Capital Management …1,247,354$445M2.57%-36,19413F-HR/ATimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…1,113,733$397M0.07%-115,64913F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC1,060,628$378M0.09%+134,90713F-HRTimelineGroup
TIAAgroup of 2 filers holding1,047,792$374M-220,378Timeline
FIL Ltdin group FIL Ltd991,656$354M0.3%-82,54913F-HRTimelineGroup
Amundiin group Amundi989,186$348M0.12%+157,30913F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP896,498$320M0.07%+83,78513F-HRTimelineGroup
California Public Employees Retirement …734,499$262M0.17%-95,51313F-HRTimeline
ALTRINSIC GLOBAL ADVISORS LLC692,633$247M8.95%+456,39913F-HRTimeline
MACKENZIE FINANCIAL CORP683,556$244M0.32%-652,73913F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC678,641$242M0.24%-65,60013F-HRTimelineGroup
First Pacific Advisors, LP652,019$233M3.33%-27,99313F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC650,846$232M0.09%-228,08313F-HR/ATimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA649,827$232M0.05%-21,85213F-HR/ATimelineGroup
USS Investment Management Ltd640,774$229M1.35%+47513F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/621,576$222M0.03%-40,02013F-HRTimeline
C WorldWide Group Holding A/Sin group C WorldWide Group Holding A/S620,660$221M3%-108,09813F-HRTimelineGroup
OMERS ADMINISTRATION Corp601,417$215M1.69%013F-HRTimeline
Swiss National Bank588,400$210M0.13%+39,40013F-HRTimeline
BLAIR WILLIAM & CO/IL567,987$203M0.56%+13,23713F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP552,605$197M0.16%+35,23413F-HRTimelineGroup
Fiera Capital Corpin group Fiera Capital Corp521,804$186M0.63%+68,40913F-HRTimelineGroup
Prana Capital Management, LP517,507$185M6.69%+264,89313F-HRTimeline
Sumitomo Mitsui Trust Group, Inc.in group Sumitomo Mitsui Trust Group, …463,796$165M0.1%+9,84113F-HRTimelineGroup
Vontobel Holding Ltd.in group Vontobel Holding Ltd.460,971$164M0.54%+338,37313F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCgroup of 2 filers holding430,309$154M-33,381Timeline
National Pension Service416,461$149M0.13%+67,30013F-HRTimeline
Woodline Partners LP412,953$147M0.78%+76,43813F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\410,381$146M0.05%-60,31413F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN406,896$145M0.03%+4,16513F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO404,969$144M0.17%-14,13213F-HRTimelineGroup
Douglass Winthrop Advisors, LLC397,087$142M2.56%+29,38713F-HRTimeline
RHUMBLINE ADVISERS394,383$141M0.12%+17,01513F-HRTimeline
Haverford Trust Co385,302$137M1.31%-1,44713F-HRTimeline
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.376,714$134M0.48%new13F-HRTimelineGroup
FIDUCIENT ADVISORS LLC338,200$121M14.77%-86,66513F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND333,116$119M0.16%+13,33813F-HR/ATimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/323,682$115M0.06%-46,50913F-HRTimelineGroup
NorthCoast Asset Management LLC316,001$113M0.48%-11,32213F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…312,618$112M0.12%+2,80613F-HRTimeline
AVIVA PLCin group AVIVA PLC311,540$111M0.23%+61,88813F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …311,314$111M0.1%+182,65913F-HRTimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…302,269$108M0.18%+131,30013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS295,551$105M0.08%-72,74013F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.292,210$104M0.03%+76,06113F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…291,660$104M0.13%+3,35413F-HRTimelineGroup
T. Rowe Price Investment Management, In…287,915$103M0.06%+3,50413F-HRTimeline
BloombergSen Inc.286,027$102M8.62%-3,49813F-HRTimeline
DAVENPORT & Co LLC276,125$98.2M0.54%-813F-HRTimeline
Bowie Capital Management, LLC272,441$97.2M4.6%+40,57013F-HRTimeline
DekaBank Deutsche Girozentrale275,444$97M0.17%+33513F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding261,844$93.4M-6,356Timeline
NATIXIS ADVISORS, LLCin group Natixis Investment Managers253,905$90.6M0.14%-32,60713F-HRTimelineGroup
Verition Fund Management LLC253,876$90.6M0.52%+9,80313F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC252,030$89.9M0.03%-20,04213F-HRTimelineGroup
BRISTOL JOHN W & CO INC /NY/249,542$89M1.44%new13F-HRTimeline
LORD, ABBETT & CO. LLC245,439$87.6M0.28%+2,72413F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP241,619$86.2M0.1%+211,18813F-HRTimelineGroup
Ensign Peak Advisors, Inc239,326$85.4M0.15%-20,19213F-HRTimeline
Wealthspire Advisors, LLC233,162$83.2M0.47%-54,97013F-HRTimeline
Cryder Capital Partners LLP231,314$82.5M4.65%new13F-HRTimeline
Scharf Investments, LLC229,454$81.9M2.36%-1,00313F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/229,203$81.7M0.09%+17,41413F-HR/ATimelineGroup
Qube Research & Technologies Ltd224,782$80.2M0.11%-48013F-HRTimeline
WEITZ INVESTMENT MANAGEMENT, INC.213,450$76.2M4.09%013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 3 filers holding203,788$72.7M+70,086Timeline
MOORE CAPITAL MANAGEMENT, LP201,024$71.7M1.43%+168,64513F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD196,911$70.2M0.06%+161,88713F-HRTimeline
CITIGROUP INCin group CITIGROUP INC196,664$70.2M0.05%-39,85313F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…189,622$67.6M0.12%+2,29013F-HRTimeline
CAPITAL GROUP INVESTMENT MANAGEMENT PTE…group of 2 filers holding187,646$66.9M-5,946Timeline
FRONTIER CAPITAL MANAGEMENT CO LLC186,844$66.7M0.62%+7,87213F-HRTimeline
NICHOLAS COMPANY, INC.181,427$64.7M1.08%-16,36013F-HRTimeline
CIBC Asset Management Inc179,589$64M0.2%+3,51613F-HRTimeline
CapitalatWork S.A.in group CapitalatWork S.A.178,725$63.8M1.94%+23,13913F-HRTimelineGroup
NOMURA ASSET MANAGEMENT CO LTDgroup of 2 filers holding177,372$63.3M-3,400Timeline
Assenagon Asset Management S.A.173,607$61.9M0.1%-320,08713F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.172,969$61.7M0.06%+91,04113F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC168,759$60.1M0.04%+16,36713F-HRTimelineGroup
GFI Investment Counsel Ltd.166,610$59.4M6.48%+3,27413F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson158,617$56.6M0.03%+133,55913F-HRTimelineGroup
Onex Canada Asset Management Inc.157,386$56.1M6.85%+23,44313F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…156,380$55.8M0.12%-8813F-HRTimeline
Aberdeen Group plcin group Aberdeen Group plc152,186$54.3M0.09%+8,05013F-HRTimelineGroup
YCG, LLC146,192$52.2M4.03%-1,82413F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP144,314$51.5M0.05%+22713F-HRTimelineGroup
STOREBRAND ASSET MANAGEMENT AS143,907$51.3M0.15%+91813F-HRTimeline
Ceredex Value Advisors LLC136,113$48.6M1.04%+10,95413F-HRTimeline
HM PAYSON & CO133,506$47.6M0.75%+3,85013F-HRTimeline
State of Tennessee, Department of Treas…132,058$47.1M0.17%+14,44013F-HRTimeline
JUPITER ASSET MANAGEMENT LTDin group JUPITER ASSET MANAGEMENT LTD131,483$46.9M0.39%+68,69813F-HRTimelineGroup
Markel Group Inc.in group Markel Group Inc.129,800$46.3M0.39%+35013F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC129,484$46.2M0.04%-153,21513F-HRTimelineGroup
AMF Tjanstepension AB126,792$45.3M0.3%+70,33313F-HRTimeline
DAVIS R M INC125,256$44.7M0.83%-3213F-HRTimeline
TCTC Holdings, LLCin group TCTC Holdings, LLC120,061$42.8M1.38%013F-HRTimelineGroup
Petrus Trust Company, LTA119,585$42.7M4.43%+2,08513F-HRTimeline
Chevy Chase Trust Holdings, LLCin group Chevy Chase Trust Holdings, L…117,135$41.8M0.12%+63913F-HRTimelineGroup
Ninety One North America, Inc.114,785$41M2.01%+107,30213F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…114,718$40.9M0.03%-2,08413F-HRTimelineGroup
Summit Trail Advisors, LLC114,375$40.8M0.7%+2,99513F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC113,657$40.5M0.27%+81,40513F-HRTimelineGroup
Broad Run Investment Management, LLC113,237$40.4M6.19%-3,84813F-HRTimeline
M.D. Sass, LLC111,005$39.6M3.19%-29,42913F-HRTimeline
Cannell & Spears LLC108,323$38.6M0.78%+62513F-HRTimeline
APG Asset Management N.V.in group APG Asset Management N.V.125,100$38M0.11%+5,10013F-HRTimelineGroup
Night Owl Capital Management, LLC106,085$37.8M4.38%-52,46813F-HRTimeline
Ironvine Capital Partners, LLC105,746$37.7M3.91%+68313F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD105,706$37.7M0.09%-5,57413F-HRTimeline
Korea Investment CORP105,510$37.6M0.08%-23,96513F-HRTimeline
DANSKE BANK A/S104,882$37.4M0.09%+16,18113F-HRTimeline
Border to Coast Pensions Partnership Ltd102,557$36.6M0.67%+4,54013F-HRTimeline
Obermeyer Wealth Partners102,502$36.6M1.82%-2,41713F-HRTimeline
Focus Partners Wealthin group Focus Partners Wealth100,049$35.7M0.08%-25,78513F-HRTimelineGroup
Central Securities Corp100,000$35.7M3.15%013F-HRTimeline
Treasurer of the State of North Carolina98,084$35M0.11%+8,21613F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…96,075$34.3M0.08%+4,45113F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS95,512$34.1M0.14%+22,29513F-HRTimeline
GATEWAY INVESTMENT ADVISERS LLC93,368$33.3M0.36%-26413F-HRTimeline
SCHRODER INVESTMENT MANAGEMENT GROUP93,083$33.2M0.03%-22,23013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…91,533$32.7M0.03%-11,08213F-HRTimelineGroup
Gillson Capital LP90,881$32.4M2.48%+39,52413F-HRTimeline
Asset Management One Co., Ltd.89,950$32.1M0.1%+2,99213F-HRTimeline
DUDLEY & SHANLEY, INC.88,632$31.6M4.97%-513F-HRTimeline
Advisors Capital Management, LLC87,556$31.2M0.43%+4,17713F-HRTimeline
LFL Advisers, LLC87,531$31.2M12.48%+2,48413F-HRTimeline
ROYAL LONDON ASSET MANAGEMENT LTD86,848$31M0.07%-3,37513F-HRTimeline
Canoe Financial LP86,829$31M0.44%+3,15013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…86,726$30.9M0.1%+4,20613F-HRTimeline
KLP KAPITALFORVALTNING AS85,252$30.4M0.13%+1,00013F-HRTimeline
Cercano Management LLC83,237$29.7M0.85%new13F-HRTimeline
Saraza Management, LP81,750$29.2M7.04%+30,25013F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP80,546$28.7M0.04%-7,81613F-HR/ATimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …78,753$28.1M0.02%+61,92413F-HRTimelineGroup
TD Asset Management Inc78,181$27.9M0.02%-6,11413F-HRTimeline
FJARDE AP-FONDEN /FOURTH SWEDISH NATION…73,085$26.1M0.24%+9,80013F-HRTimeline
Mn Services Vermogensbeheer B.V.72,700$25.9M0.18%-1,30013F-HRTimeline
Allianz Asset Management GmbHin group Allianz SE72,007$25.7M0.03%+32,18413F-HRTimelineGroup
Rafferty Asset Management, LLC71,790$25.6M0.08%+88913F-HRTimeline
Schonfeld Strategic Advisors LLC71,776$25.6M0.19%-42,21813F-HRTimeline
STRS OHIO71,239$25.4M0.09%+7,32013F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources70,887$25.3M0.01%-2,27213F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC68,697$24.5M0.02%-2,41913F-HRTimeline
VESTOR CAPITAL, LLC18,146$24.3M1.82%+16,38713F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…65,619$23.4M0.09%013F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC65,007$23.2M0.05%-130,95913F-HR/ATimelineGroup
Artemis Investment Management LLP64,175$22.9M0.29%+49,91013F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…63,755$22.7M0.13%+7,94113F-HRTimelineGroup
Lansforsakringar Fondforvaltning AB (pu…61,927$22.1M0.13%-2,54913F-HRTimeline
Resona Asset Management Co.,Ltd.in group Resona Asset Management Co.,L…61,738$22M0.11%new13F-HRTimelineGroup
LPL Financial LLC61,218$21.8M0.01%-6,67513F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.60,905$21.7M0.35%-4,53513F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Orion Porfolio Solutions, LLC60,849$21.7M0.19%-3,44613F-HR/ATimeline
Handelsbanken Fonder AB60,479$21.6M0.08%+1,00513F-HRTimeline
Capitolis Liquid Global Markets LLCin group CAPITOLIS LIQUID GLOBAL MARKE…59,112$21.1M0.15%+49,36213F-HRTimelineGroup
STATE OF MICHIGAN RETIREMENT SYSTEM58,758$21M0.11%+10013F-HRTimeline
Swedbank ABin group Swedbank AB58,487$20.9M0.02%13F-HRTimelineGroup
Ninety One UK Ltd57,949$20.7M0.05%-1,47313F-HRTimeline
DZ BANK AG Deutsche Zentral Genossensch…in group DZ BANK AG Deutsche Zentral G…57,877$20.6M0.02%-1,412,14313F-HRTimelineGroup
Glenmede Investment Management, LP57,587$20.5M0.1%13F-HRTimeline
Financiere des Professionnels - Fonds d…57,555$20.5M1.24%-3,98813F-HR/ATimeline
Robeco Institutional Asset Management B…in group Robeco Institutional Asset Ma…57,175$20.4M0.03%+3,06713F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM56,831$20.3M0.12%-29013F-HRTimeline