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Disclosery

AON AON PLC

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Stock (common), issuer CIK 315293

1,221 managers (1,258 13F filers) reported a position in AON shares at 2026-06-30, 192,676,554 shares in all. 124 filers opened a position and 113 filers sold out during the quarter.

Managers
1,221
13F filers
1,258
New
124
Added
470
Reduced
456
Sold out
113
Shares held by filers
192,676,554

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 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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 8 filers holding22,997,271$7.63B+2,670,249Timeline
BlackRock, Inc.in group BlackRock, Inc.15,716,429$5.21B0.08%-432,07813F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO12,175,974$3.99B0.23%+6,534,54313F-HRTimelineGroup
Capital World Investors11,711,650$3.88B0.46%+233,86213F-HRTimeline
STATE STREET CORPin group STATE STREET CORP9,416,039$3.12B0.09%+196,26613F-HRTimelineGroup
Dodge & Cox8,593,144$2.85B1.49%+477,04913F-HRTimeline
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…7,615,397$2.58B0.82%-742,70013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY6,214,787$2.06B0.11%-160,15813F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC5,180,553$1.71B0.09%-63,75613F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp3,191,212$1.06B0.17%-129,88013F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/3,136,640$1.04B0.1%+1,855,71413F-HRTimeline
Mitsubishi UFJ Trust & Banking Corpgroup of 5 filers holding2,890,767$959M+244,892Timeline
NORGES BANK2,796,760$928M0.09%new13F-HRTimeline
Independent Franchise Partners LLP2,646,943$878M5.76%+58,94113F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …2,614,754$867M0.38%+1,817,33613F-HRTimelineGroup
DZ BANK AG Deutsche Zentral Genossensch…in group DZ BANK AG Deutsche Zentral G…2,255,768$748M0.59%-692,64213F-HRTimelineGroup
Boston Partnersin group Boston Trust Walden Corp2,089,773$696M0.62%+134,74113F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP2,040,534$677M0.08%-41,57113F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC1,905,800$623M0.22%+926,04513F-HRTimelineGroup
WCM INVESTMENT MANAGEMENT, LLC1,875,859$614M1.11%-76,52013F-HRTimeline
Artisan Partners Limited Partnership1,850,623$614M1%+206,47113F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,748,801$580M0.06%+164,81013F-HRTimelineGroup
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC1,691,729$561M0.37%-166,10513F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/1,624,970$539M0.03%+42,29013F-HRTimelineGroup
Veritas Asset Management LLP1,408,111$467M8.4%-112,16613F-HRTimeline
FARALLON CAPITAL MANAGEMENT, L.L.C.1,382,562$459M2.68%-1,130,07613F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co1,345,367$446M0.06%-9,72713F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc1,288,852$427M0.09%-52,37013F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP1,240,634$411M0.07%-13,13513F-HRTimelineGroup
Mawer Investment Management Ltd.1,171,624$389M2.64%-105,46413F-HRTimeline
VIKING GLOBAL INVESTORS LPin group VIKING GLOBAL INVESTORS LP1,151,269$382M1.09%+64,15513F-HRTimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC1,122,874$372M0.56%-94,36913F-HRTimelineGroup
Diamond Hill Capital Management, LLC (I…1,114,156$370M2.96%-373,73113F-HRTimeline
Invesco Ltd.in group Invesco Ltd.1,069,331$355M0.03%-417,29213F-HRTimelineGroup
Capital International Investorsgroup of 4 filers holding1,004,510$333M-8,613Timeline
Amundiin group Amundi993,712$330M0.08%-509,17813F-HRTimelineGroup
TIAAgroup of 3 filers holding881,468$292M+27,582Timeline
UBS Group AGgroup of 2 filers holding848,007$281M-1,318,044Timeline
COMGEST GLOBAL INVESTORS S.A.S.in group COMGEST GLOBAL INVESTORS S.A.…820,270$272M5.99%+191,57013F-HRTimelineGroup
PineStone Asset Management Inc.799,293$265M1.64%new13F-HRTimeline
Longview Partners (Guernsey) LTDin group Longview Partners (Guernsey) …768,975$255M4.14%-207,28813F-HRTimelineGroup
FIL Ltdin group FIL Ltd753,981$250M0.18%+8,02213F-HRTimelineGroup
Wealthspire Advisors, LLC726,424$241M1.33%-257,65113F-HRTimeline
Focus Partners Wealthgroup of 2 filers holding711,406$236M+76,754Timeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC692,802$230M0.05%-387,87013F-HRTimelineGroup
BAUPOST GROUP LLC/MA687,000$228M4.21%-82,00013F-HRTimeline
Meritage Group LPin group Meritage Group LP684,518$227M8.75%+4,34913F-HRTimelineGroup
First Pacific Advisors, LP681,367$226M2.8%-21,89113F-HRTimeline
ALTRINSIC GLOBAL ADVISORS LLC646,424$214M7.87%-14,30013F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\585,041$194M0.06%-59,69513F-HRTimelineGroup
Swiss National Bank574,100$190M0.1%-25,16013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA554,705$184M0.03%-133,42513F-HRTimelineGroup
FMR LLCin group FMR LLC551,367$183M0.01%+28,18313F-HRTimelineGroup
Vontobel Holding Ltd.in group Vontobel Holding Ltd.540,802$179M0.6%-458,37413F-HRTimelineGroup
USS Investment Management Ltd520,768$173M0.62%+18,28813F-HRTimeline
National Pension Service484,892$161M0.1%+9,34913F-HRTimeline
Sumitomo Mitsui Trust Group, Inc.in group Sumitomo Mitsui Trust Group, …453,213$150M0.09%+5,91213F-HRTimelineGroup
NATIXIS ADVISORS, LLCin group Natixis Investment Managers448,019$149M0.17%+106,08213F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS446,333$148M0.08%+77,97313F-HRTimelineGroup
Fiera Capital Corpin group Fiera Capital Corp419,313$139M0.5%-130,97413F-HRTimelineGroup
Douglass Winthrop Advisors, LLC400,635$133M2.29%+6,09913F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC394,135$131M0.04%-206,41913F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources389,485$129M0.03%+28,17013F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…388,097$129M0.11%+125,18113F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO385,948$128M0.11%-65,97713F-HRTimelineGroup
Verition Fund Management LLC385,028$128M0.9%+156,81913F-HR/ATimeline
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…380,369$126M0.18%+158,20013F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP375,514$123M0.05%+116,48113F-HRTimelineGroup
California Public Employees Retirement …370,835$123M0.07%-105,10713F-HRTimeline
BLAIR WILLIAM & CO/IL360,607$120M0.31%-60,99813F-HRTimeline
RHUMBLINE ADVISERS360,106$119M0.09%-20,53813F-HRTimeline
Cryder Capital Partners LLP352,191$117M7.36%+30,50213F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC351,616$117M0.06%-2,54213F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCgroup of 2 filers holding339,333$113M-85,410Timeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN336,918$112M0.02%-28,78813F-HRTimelineGroup
DAVENPORT & Co LLC336,307$111M0.57%-73413F-HRTimeline
C WorldWide Group Holding A/Sin group C WorldWide Group Holding A/S320,935$106M2.57%-78,37713F-HRTimelineGroup
CapitalatWork S.A.in group CapitalatWork S.A.316,541$105M2.63%+44,53813F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC312,198$104M0.07%+292,22213F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…306,798$102M0.09%-2,17513F-HR/ATimeline
Haverford Trust Co296,930$98.5M0.85%-49,18713F-HRTimeline
LORD, ABBETT & CO. LLC292,301$97M0.28%-6,22913F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/283,011$93.9M0.03%-5,22413F-HRTimelineGroup
BRISTOL JOHN W & CO INC /NY/279,586$92.7M1.37%-3,46813F-HRTimeline
AVIVA PLCin group AVIVA PLC267,360$88.7M0.13%-42,97513F-HRTimelineGroup
DekaBank Deutsche Girozentrale275,444$88.6M0.15%013F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding264,203$87.6M+9,949Timeline
Bowie Capital Management, LLC250,021$82.9M4.1%-72,14613F-HRTimeline
BloombergSen Inc.245,318$81.4M9.1%-8,68813F-HRTimeline
Sustainable Growth Advisers, LP242,284$80.4M0.79%-809,52113F-HRTimeline
CITIGROUP INCin group CITIGROUP INC233,032$77.3M0.04%-17,41513F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND229,832$76.2M0.1%-14,40013F-HRTimeline
Scharf Investments, LLC226,626$75.2M2.48%-28,31513F-HRTimeline
Quantinno Capital Management LP225,133$74.7M0.09%-67413F-HRTimeline
Gillson Capital LP221,600$73.5M4.33%+118,88013F-HRTimeline
WEITZ INVESTMENT MANAGEMENT, INC.213,860$70.9M4.91%013F-HRTimeline
NOMURA ASSET MANAGEMENT CO LTDgroup of 3 filers holding210,517$69.8M+25,427Timeline
Ensign Peak Advisors, Inc206,469$68.5M0.11%-16,70913F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC204,967$68M0.02%-29,65413F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.207,271$66.9M0.02%-13,05213F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management198,061$65.7M0.12%-26,26013F-HRTimelineGroup
Assenagon Asset Management S.A.188,821$62.6M0.08%+180,60113F-HR/ATimeline
NICHOLAS COMPANY, INC.181,267$60.1M1.1%+4013F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…178,085$59.1M0.1%-3,32713F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD174,339$57.8M0.03%-94,72013F-HRTimeline
POLEN CAPITAL MANAGEMENT LLC164,035$54.4M0.47%-1,190,01813F-HRTimeline
Aberdeen Group plcin group Aberdeen Group plc162,212$53.8M0.08%+3,61413F-HRTimelineGroup
Ninety One UK Ltd161,013$53.4M0.12%+23,44413F-HRTimeline
GFI Investment Counsel Ltd.160,005$53.1M7.2%+2,56813F-HRTimeline
CI INVESTMENTS INC.in group CI INVESTMENTS INC.156,100$51.8M0.17%+155,01713F-HRTimelineGroup
State of Tennessee, Department of Treas…155,205$51.5M0.15%+1,82613F-HRTimeline
Woodline Partners LP155,078$51.4M0.16%+52,70913F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…153,500$50.9M0.09%-1,80013F-HRTimeline
VESTOR CAPITAL, LLC210,617$50.2M3.16%+208,85813F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS146,997$48.8M0.13%-33,89613F-HRTimeline
YCG, LLC145,134$48.1M4.24%-1,87613F-HRTimeline
PFA Pension, Forsikringsaktieselskab145,118$48.1M0.12%+138,34913F-HRTimeline
Petrus Trust Company, LTA144,000$47.8M4.49%-9,30013F-HRTimeline
LFL Advisers, LLC136,691$45.3M12.12%+10,02513F-HRTimeline
Markel Group Inc.in group Markel Group Inc.135,800$45M0.34%013F-HRTimelineGroup
STOREBRAND ASSET MANAGEMENT AS135,494$44.9M0.11%-2,04013F-HRTimeline
OMERS ADMINISTRATION Corp135,286$44.9M0.27%-432,19313F-HRTimeline
APG Asset Management N.V.in group APG Asset Management N.V.153,532$44.5M0.11%+41,48913F-HRTimelineGroup
SG Americas Securities, LLC133,270$44.2M0.03%+54,35413F-HRTimeline
Mariner, LLCin group Mariner, LLC133,194$44.2M0.05%+55,79313F-HRTimelineGroup
DANSKE BANK A/S131,655$43.7M0.09%+11,07813F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP131,003$43.5M0.03%+103,33113F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …130,281$43.2M0.03%-417,56913F-HRTimelineGroup
Nippon Life Global Investors Americas, …130,180$43.2M1.72%-48013F-HRTimeline
DAVIS R M INC127,621$42.3M0.67%-20913F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP127,310$42.2M0.04%-21,82513F-HRTimelineGroup
SCHRODER INVESTMENT MANAGEMENT GROUP125,728$41.2M0.03%+7,53013F-HRTimeline
AMF Tjanstepension AB122,843$40.7M0.24%013F-HRTimeline
FJARDE AP-FONDEN /FOURTH SWEDISH NATION…120,985$40.1M0.19%+27,68013F-HRTimeline
TCTC Holdings, LLCin group TCTC Holdings, LLC120,606$40M1.05%+60613F-HRTimelineGroup
Ironvine Capital Partners, LLC119,841$39.8M3.7%+12,15313F-HRTimeline
1832 Asset Management L.P.118,078$39.2M0.05%-1,49013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCgroup of 2 filers holding113,702$37.7M-7,879Timeline
Korea Investment CORP111,870$37.1M0.07%-56,24213F-HRTimeline
Night Owl Capital Management, LLC110,978$36.8M3.86%+1,49013F-HRTimeline
Man Group plcin group Man Group plc110,868$36.8M0.07%-28,38413F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD108,992$36.2M0.07%-2,29613F-HRTimeline
Ninety One North America, Inc.108,639$36M1.69%-66,92013F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…107,640$35.7M0.07%+9,55013F-HRTimeline
LPL Financial LLC106,629$35.4M0.01%+4,51813F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…106,370$35.3M0.01%+14,99613F-HRTimelineGroup
Chevy Chase Trust Holdings, LLCin group Chevy Chase Trust Holdings, L…106,232$35.2M0.09%-2,51713F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC105,569$35M0.02%+25,26913F-HRTimelineGroup
ASSETMARK, INCin group ASSETMARK, INC102,990$34.2M0.06%+22,49113F-HRTimelineGroup
Cannell & Spears LLC102,769$34.1M0.61%-7,13313F-HRTimeline
KLP KAPITALFORVALTNING AS102,032$33.8M0.11%+4,08013F-HRTimeline
IEQ CAPITAL, LLC101,454$33.7M0.16%+48,39213F-HRTimeline
Broad Run Investment Management, LLC100,650$33.4M5.14%-50713F-HRTimeline
Obermeyer Wealth Partners98,034$32.5M1.33%-31913F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …97,739$32.4M0.03%-193,59813F-HRTimelineGroup
Tidal Investments LLCin group Tidal Investments LLC97,552$32.4M0.08%-13,51213F-HRTimelineGroup
GATEWAY INVESTMENT ADVISERS LLC95,912$31.8M0.31%-77113F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…92,087$30.5M0.02%+1,12213F-HRTimelineGroup
Asset Management One Co., Ltd.91,635$30.4M0.08%-2,60413F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…90,408$30M0.03%+43613F-HRTimelineGroup
Cerity Partners LLCin group Cerity Partners LLC90,060$29.9M0.04%+22,69113F-HRTimelineGroup
Summit Trail Advisors, LLC89,714$29.8M0.37%-52013F-HRTimeline
DUDLEY & SHANLEY, INC.88,807$29.5M4.45%+2513F-HRTimeline
Treasurer of the State of North Carolina88,644$29.4M0.08%-1,25013F-HRTimeline
ROYAL LONDON ASSET MANAGEMENT LTD86,933$28.8M0.05%-1,44813F-HRTimeline
VOLORIDGE INVESTMENT MANAGEMENT, LLC82,214$27.3M0.12%-32,76013F-HRTimeline
Tredje AP-fonden81,171$26.9M0.12%+20,08513F-HRTimeline
Advisors Capital Management, LLC79,883$26.5M0.28%-6,54813F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…79,272$26.3M0.08%-5,67013F-HRTimeline
MACKENZIE FINANCIAL CORP77,327$25.6M0.03%-89,17113F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding77,247$25.6M+11,109Timeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/77,226$25.6M0.02%-58,50213F-HRTimelineGroup
Janney Montgomery Scott LLC75,224$25M0.05%+42,78513F-HRTimeline
TD Asset Management Inc74,266$24.6M0.02%-6,26113F-HRTimeline
Onex Canada Asset Management Inc.73,720$24.5M3.77%-18,79913F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP73,158$24.3M0.03%+32,50513F-HR/ATimelineGroup
CIBC Asset Management Inc69,491$23M0.05%+52013F-HRTimeline
CAPTRUST FINANCIAL ADVISORS68,638$22.8M0.03%+30,15613F-HRTimeline
Handelsbanken Fonder AB68,206$22.6M0.06%+1,29313F-HRTimeline
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A66,685$22.1M0.06%+7,80213F-HRTimelineGroup
Distillate Capital Partners LLC66,307$22M1.14%+75613F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…65,126$21.6M0.07%-5,13313F-HRTimelineGroup
Creative Planningin group Creative Planning64,022$21.2M0.01%+14,25813F-HRTimelineGroup
Lansforsakringar Fondforvaltning AB (pu…63,531$21.1M0.09%-5,66713F-HRTimeline
Rafferty Asset Management, LLC62,217$20.6M0.05%+10,06613F-HRTimeline
Public Sector Pension Investment Board60,977$20.2M0.05%-3913F-HR/ATimeline
Czech National Bank60,792$20.2M0.11%+2,37413F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC60,303$20M0.01%-99313F-HRTimeline
Mn Services Vermogensbeheer B.V.59,386$19.7M0.15%-15,10013F-HRTimeline
JLB & ASSOCIATES INC58,493$19.4M2.59%-3,47313F-HRTimeline
CIBC Bancorp USA Inc.in group CIBC Bancorp USA Inc.57,614$19.1M0.02%-17,57513F-HRTimelineGroup
Avalon Trust Co57,146$19M1.17%-9013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM56,479$18.7M0.09%+52213F-HRTimeline
BANK OF NOVA SCOTIAgroup of 2 filers holding55,575$18.4M-12,224Timeline
Swedbank ABin group Swedbank AB54,698$18.1M0.02%-32,76613F-HRTimelineGroup
STATE OF MICHIGAN RETIREMENT SYSTEM54,658$18.1M0.08%-1,40013F-HRTimeline
Resona Asset Management Co.,Ltd.in group Resona Asset Management Co.,L…53,962$17.9M0.08%-4,08513F-HRTimelineGroup
Varma Mutual Pension Insurance Co53,400$17.7M0.09%+7,30013F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV52,099$17.3M0.02%+24,35113F-HR/ATimeline
Gotham Asset Management, LLC51,801$17.2M0.04%-37,00413F-HRTimeline