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Disclosery

AON AON PLC

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Stock (common), issuer CIK 315293

1,243 managers (1,268 13F filers) reported a position in AON shares at 2025-03-31, 193,505,530 shares in all. 155 filers opened a position and 68 filers sold out during the quarter.

Managers
1,243
13F filers
1,268
New
155
Added
469
Reduced
396
Sold out
68
Shares held by filers
193,505,530

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, Q1 2025

Filers in the available 13F reports with a share position at 2025-03-31, 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 holding19,799,386$7.9B+259,412Timeline
BlackRock, Inc.in group BlackRock, Inc.15,099,285$6.03B0.13%+340,42413F-HRTimelineGroup
Capital World Investors12,097,577$4.83B0.78%+32013F-HRTimeline
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…9,832,327$3.92B1.3%-1,783,99713F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP9,173,788$3.66B0.15%+82,86613F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY8,726,304$3.48B0.25%+342,02313F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO5,656,323$2.26B0.17%+300,94113F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC5,414,557$2.15B0.17%+464,63813F-HRTimelineGroup
HPS Investment Partners, LLC4,339,759$1.73B99.01%013F-HRTimeline
Berkshire Hathaway Incin group Berkshire Hathaway Inc4,100,000$1.64B0.63%013F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
Mawer Investment Management Ltd.3,273,574$1.31B6.31%-629,15313F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp3,034,062$1.21B0.24%+469,23813F-HRTimelineGroup
POLEN CAPITAL MANAGEMENT LLC3,007,719$1.2B3.77%+2,288,39713F-HRTimeline
UBS Group AGgroup of 2 filers holding2,676,022$1.07B+512,502Timeline
EAGLE CAPITAL MANAGEMENT LLC2,623,489$1.05B3.82%-1,360,06713F-HRTimeline
Mitsubishi UFJ Trust & Banking Corpgroup of 3 filers holding2,508,755$1B+56,332Timeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP2,290,619$914M0.14%+131,67613F-HRTimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC2,240,955$894M1.37%-96,21913F-HRTimelineGroup
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC2,136,107$852M0.71%+12,24513F-HRTimelineGroup
Artisan Partners Limited Partnership2,135,832$852M1.38%+68,28113F-HRTimeline
Boston Partnersin group Boston Trust Walden Corp2,121,607$845M1.02%+85,60913F-HRTimelineGroup
WCM INVESTMENT MANAGEMENT, LLC2,051,816$810M2.08%+6,03813F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/1,869,779$746M0.07%+263,35813F-HRTimelineGroup
Capital International Investorsgroup of 4 filers holding1,868,745$745M-232,627Timeline
Veritas Asset Management LLP1,839,697$734M7.42%-380,95113F-HRTimeline
NORGES BANK1,665,948$665M0.09%+4,66813F-HR/ATimeline
Sustainable Growth Advisers, LP1,592,962$636M3.55%-670,82113F-HRTimeline
Independent Franchise Partners LLP1,583,221$632M4.51%-433,75113F-HRTimeline
DZ BANK AG Deutsche Zentral Genossensch…in group DZ BANK AG Deutsche Zentral G…1,470,020$587M0.68%-18,03413F-HRTimelineGroup
Longview Partners (Guernsey) LTDin group Longview Partners (Guernsey) …1,381,341$551M4.44%-86,79013F-HRTimelineGroup
MACKENZIE FINANCIAL CORP1,336,295$533M0.76%-162,45813F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc1,321,194$527M0.14%-58,59413F-HRTimelineGroup
Cantillon Capital Management LLCin group Cantillon Capital Management …1,283,548$512M3.32%-39,68013F-HR/ATimelineGroup
TIAAgroup of 2 filers holding1,268,170$506M+1,265,372Timeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co1,253,997$500M0.09%+16,21313F-HR/ATimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…1,229,382$491M0.09%new13F-HRTimelineGroup
Diamond Hill Capital Management, LLC (I…1,212,599$484M2.22%-35,13713F-HRTimeline
Invesco Ltd.in group Invesco Ltd.1,158,139$462M0.09%+137,11813F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,124,300$449M0.09%+3,90113F-HR/ATimelineGroup
FIL Ltdin group FIL Ltd1,074,205$429M0.41%-86,26013F-HRTimelineGroup
FARALLON CAPITAL MANAGEMENT, L.L.C.1,361,744$378M2.04%-470,98913F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC925,721$369M0.1%+1,65513F-HRTimelineGroup
FMR LLCin group FMR LLC912,181$364M0.02%+9,98913F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC878,929$351M0.16%+332,38513F-HR/ATimelineGroup
California Public Employees Retirement …830,012$331M0.23%-24,79413F-HRTimeline
Amundiin group Amundi831,877$328M0.12%+88,21213F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP812,713$324M0.08%+75,79713F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC744,241$297M0.33%+140,50513F-HR/ATimelineGroup
C WorldWide Group Holding A/Sin group C WorldWide Group Holding A/S728,758$291M3.61%-15,94613F-HRTimelineGroup
First Pacific Advisors, LP680,012$271M4.35%-48,48113F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA671,679$268M0.06%+109,59413F-HR/ATimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/661,596$264M0.03%-46,12713F-HRTimeline
USS Investment Management Ltd640,299$255M1.87%-3,60013F-HRTimeline
OMERS ADMINISTRATION Corp601,417$240M2.1%-1,18913F-HRTimeline
BLAIR WILLIAM & CO/IL554,750$221M0.67%-9,49713F-HRTimeline
Swiss National Bank549,000$219M0.15%-3,30013F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP517,371$206M0.18%-18,80313F-HRTimelineGroup
Assenagon Asset Management S.A.493,694$197M0.35%+331,88813F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\470,695$188M0.07%+25,43813F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCgroup of 2 filers holding463,690$185M+86,466Timeline
Sumitomo Mitsui Trust Group, Inc.in group Sumitomo Mitsui Trust Group, …453,955$181M0.13%-41913F-HRTimelineGroup
Fiera Capital Corpin group Fiera Capital Corp453,395$181M0.65%-43,89913F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management428,842$171M0.43%-36,23913F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC425,678$170M0.16%+359,24913F-HRTimelineGroup
FIDUCIENT ADVISORS LLC424,865$170M21.19%+73,42813F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO419,101$167M0.22%+118,41913F-HR/ATimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN402,731$161M0.04%+118,45613F-HRTimelineGroup
Haverford Trust Co386,749$154M1.55%+46,53113F-HRTimeline
RHUMBLINE ADVISERS377,368$151M0.14%+8,57813F-HR/ATimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/370,191$148M0.08%+6,70813F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS368,291$147M0.11%+68,97513F-HRTimelineGroup
Douglass Winthrop Advisors, LLC367,700$147M2.79%-4,34313F-HRTimeline
National Pension Service349,161$139M0.13%+13,91213F-HRTimeline
Woodline Partners LP336,515$134M0.87%+95,75813F-HRTimeline
NorthCoast Asset Management LLC327,323$131M0.66%+24,41013F-HR/ATimeline
NEW YORK STATE COMMON RETIREMENT FUND319,778$128M0.19%+38,27713F-HR/ATimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…309,812$124M0.15%-4,48213F-HRTimeline
BloombergSen Inc.289,525$116M9.98%-5,08113F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…288,306$115M0.16%+34,82113F-HRTimelineGroup
Wealthspire Advisors, LLC288,132$115M0.69%-8,73013F-HRTimeline
NATIXIS ADVISORS, LLCin group Natixis Investment Managers286,512$114M0.21%+6,34813F-HRTimelineGroup
T. Rowe Price Investment Management, In…284,411$114M0.08%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC282,699$113M0.11%+255,69913F-HRTimelineGroup
DAVENPORT & Co LLC276,133$110M0.65%-2,00013F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC272,072$109M0.04%+31,41313F-HRTimelineGroup
DekaBank Deutsche Girozentrale275,109$108M0.21%-33513F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding268,200$107M-1,912Timeline
Ensign Peak Advisors, Inc259,518$104M0.2%+58,51313F-HRTimeline
Prana Capital Management, LP252,614$101M4.1%+121,45113F-HRTimeline
AVIVA PLCin group AVIVA PLC249,652$99.6M0.24%-6,10813F-HRTimelineGroup
Verition Fund Management LLC244,073$97.4M0.56%-25,19513F-HRTimeline
LORD, ABBETT & CO. LLC242,715$96.9M0.35%+3,56413F-HRTimeline
CITIGROUP INCin group CITIGROUP INC236,517$94.4M0.07%+107,71413F-HRTimelineGroup
ALTRINSIC GLOBAL ADVISORS LLC236,234$94.3M4.65%-1,13713F-HRTimeline
Bowie Capital Management, LLC231,871$92.5M4.69%-39,12113F-HRTimeline
Scharf Investments, LLC230,457$92M2.78%-5,86613F-HRTimeline
Qube Research & Technologies Ltd225,262$89.9M0.14%+171,88313F-HRTimeline
ALLIANCEBERNSTEIN L.P.216,149$86.3M0.03%-49213F-HRTimeline
WEITZ INVESTMENT MANAGEMENT, INC.213,450$85.2M4.53%-47,50013F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/211,789$84.5M0.1%-42,79213F-HRTimelineGroup
NICHOLAS COMPANY, INC.197,787$78.9M1.37%-30,51813F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC195,966$78.2M0.19%+128,11813F-HR/ATimelineGroup
CAPITAL GROUP INVESTMENT MANAGEMENT PTE…group of 2 filers holding193,592$77.3M-8,206Timeline
Junto Capital Management LP188,993$75.4M1.73%new13F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…187,332$74.8M0.15%013F-HRTimeline
NOMURA ASSET MANAGEMENT CO LTDgroup of 2 filers holding180,772$72.1M+4,052Timeline
FRONTIER CAPITAL MANAGEMENT CO LLC178,972$71.4M0.78%+34,93513F-HRTimeline
CIBC Asset Management Inc176,073$70.2M0.23%-12,12813F-HRTimeline
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…170,969$68.2M0.13%+78,90013F-HRTimelineGroup
VOLORIDGE INVESTMENT MANAGEMENT, LLC164,087$65.5M0.24%+31,93513F-HRTimeline
GFI Investment Counsel Ltd.163,336$65.2M7.58%+3,20913F-HRTimeline
Night Owl Capital Management, LLC158,553$63.3M7.91%+5,90313F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…156,468$62.4M0.14%-10,06513F-HRTimeline
CapitalatWork S.A.in group CapitalatWork S.A.155,586$62.1M2.01%-1,36113F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC152,392$60.3M0.04%+48,30913F-HRTimelineGroup
YCG, LLC148,016$59.1M4.63%-86613F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP144,087$57.5M0.06%-5,23913F-HRTimelineGroup
Aberdeen Group plcin group Aberdeen Group plc144,136$57.2M0.11%+74,91313F-HRTimelineGroup
STOREBRAND ASSET MANAGEMENT AS142,989$57.1M0.19%-8,36813F-HRTimeline
M.D. Sass, LLC140,434$56M4.93%-30,90713F-HRTimeline
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.135,419$54M0.93%+129,75513F-HRTimelineGroup
Onex Canada Asset Management Inc.133,943$53.5M6.89%-19,88213F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding133,702$53.4M-59,345Timeline
HM PAYSON & CO129,656$51.7M0.91%+1,41313F-HRTimeline
Korea Investment CORP129,475$51.7M0.13%+18,27413F-HRTimeline
Markel Group Inc.in group Markel Group Inc.129,450$51.7M0.46%+3,25013F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …128,655$51.3M0.05%-860,33013F-HRTimelineGroup
PENSIOENFONDS RAIL & OV128,522$51.3M3.55%-5,25313F-HRTimeline
Focus Partners Wealthin group Focus Partners Wealth125,834$50.2M0.13%+27,27213F-HR/ATimelineGroup
DAVIS R M INC125,288$50M1%-38113F-HRTimeline
Ceredex Value Advisors LLC125,159$49.9M1.09%-2,99313F-HRTimeline
Vontobel Holding Ltd.in group Vontobel Holding Ltd.122,598$48.9M0.18%-28,81713F-HRTimelineGroup
TCTC Holdings, LLCin group TCTC Holdings, LLC120,061$47.9M1.69%+3513F-HRTimelineGroup
State of Tennessee, Department of Treas…117,618$46.9M0.18%-5,23013F-HRTimeline
Petrus Trust Company, LTA117,500$46.9M4.38%013F-HRTimeline
Broad Run Investment Management, LLC117,085$46.7M7.8%-44,09113F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…116,802$46.6M0.02%-16,14413F-HRTimelineGroup
Chevy Chase Trust Holdings, LLCin group Chevy Chase Trust Holdings, L…116,496$46.5M0.15%-6413F-HRTimelineGroup
SCHRODER INVESTMENT MANAGEMENT GROUP115,313$45.5M0.05%+11,13413F-HRTimeline
Schonfeld Strategic Advisors LLC113,994$45.5M0.31%+74,36113F-HRTimeline
Summit Trail Advisors, LLC111,380$44.5M1.47%-1,68613F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD111,280$44.4M0.11%+3,64513F-HRTimeline
APG Asset Management N.V.in group APG Asset Management N.V.120,000$44.3M0.14%-1,70013F-HRTimelineGroup
Cannell & Spears LLC107,698$43M0.93%-8,31213F-HRTimeline
Ironvine Capital Partners, LLC105,063$41.9M4.55%-1,87413F-HRTimeline
Obermeyer Wealth Partners104,919$41.9M2.23%-3,17113F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…102,615$41M0.05%-39,56713F-HRTimelineGroup
Central Securities Corp100,000$39.9M3.8%013F-HRTimeline
Border to Coast Pensions Partnership Ltd98,017$39.1M0.8%+12,10513F-HRTimeline
GATEWAY INVESTMENT ADVISERS LLC93,632$37.4M0.43%+10813F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…91,624$36.6M0.1%-4,92413F-HRTimeline
ROYAL LONDON ASSET MANAGEMENT LTD90,223$36M0.09%+7,50513F-HRTimeline
Oribel Capital Management, LP90,100$36M4.47%+29,94213F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…90,070$35.9M0.23%new13F-HRTimelineGroup
Treasurer of the State of North Carolina89,868$35.9M0.14%-8,83713F-HRTimeline
DANSKE BANK A/S88,701$35.4M0.11%-30,93213F-HRTimeline
DUDLEY & SHANLEY, INC.88,637$35.4M5.57%-5,19013F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP88,362$35.3M0.06%-7,69813F-HRTimelineGroup
Asset Management One Co., Ltd.86,958$34.7M0.12%+3,85713F-HRTimeline
LFL Advisers, LLC85,047$33.9M14.85%-2,24913F-HRTimeline
TD Asset Management Inc84,295$33.6M0.03%-4,40813F-HRTimeline
KLP KAPITALFORVALTNING AS84,252$33.6M0.16%+10013F-HRTimeline
Canoe Financial LP83,679$33.4M0.54%+25,57013F-HRTimeline
Advisors Capital Management, LLC83,379$33.3M0.51%+1,61413F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…82,520$32.9M0.12%-2,58713F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.81,928$32.7M0.04%-116,67413F-HRTimelineGroup
Mn Services Vermogensbeheer B.V.74,000$29.5M0.23%-4,70013F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS73,217$29.2M0.12%+36713F-HRTimeline
GM Advisory Group, LLC73,209$29.2M1.58%-12,98013F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources73,159$29.2M0.01%+5,85413F-HRTimelineGroup
Clark Capital Management Group, Inc.71,746$28.6M0.21%-85,87913F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC71,116$28.4M0.03%-24413F-HRTimeline
Rafferty Asset Management, LLC70,901$28.3M0.12%-5,39913F-HRTimeline
Williams Jones Wealth Management, LLC.70,551$28.2M0.36%-5,28113F-HRTimeline
TOWNSQUARE CAPITAL LLC69,003$27.5M0.29%+55,81313F-HRTimeline
Lighthouse Investment Partners, LLCin group Lighthouse Investment Partner…68,136$27.2M1.24%new13F-HRTimelineGroup
Federation des caisses Desjardins du Qu…67,862$27.1M0.13%+2,47813F-HRTimeline
LPL Financial LLC67,893$27.1M0.01%-53213F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…65,619$26.2M0.12%-6,65813F-HRTimelineGroup
HANTZ FINANCIAL SERVICES, INC.65,440$26.1M0.46%+45,06113F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Aquatic Capital Management LLC64,719$25.8M0.66%new13F-HRTimeline
Lansforsakringar Fondforvaltning AB (pu…64,476$25.7M0.16%-1,35013F-HRTimeline
Orion Porfolio Solutions, LLC64,295$25.7M0.25%+25313F-HRTimeline
Orion Portfolio Solutions, LLC64,295$25.7M0.25%+25313F-HR/ATimeline
STRS OHIO63,919$25.5M0.11%-51713F-HRTimeline
FJARDE AP-FONDEN /FOURTH SWEDISH NATION…63,285$25.3M0.3%+7,60013F-HRTimeline
JUPITER ASSET MANAGEMENT LTDin group JUPITER ASSET MANAGEMENT LTD62,785$25.1M0.24%new13F-HRTimelineGroup
Motley Fool Asset Management LLCgroup of 2 filers holding61,543$24.6M-5,382Timeline
Financiere des Professionnels - Fonds d…61,543$24.6M1.59%-4,21413F-HRTimeline
Handelsbanken Fonder AB59,474$23.7M0.1%+13613F-HRTimeline
Ninety One UK Ltd59,422$23.7M0.07%-2,34213F-HRTimeline
STATE OF MICHIGAN RETIREMENT SYSTEM58,658$23.4M0.14%013F-HRTimeline
Public Sector Pension Investment Board57,858$23.1M0.1%+1,70913F-HRTimeline
GLENMEDE TRUST CO NAin group GLENMEDE TRUST CO NA57,256$22.9M0.12%+22,51313F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM57,121$22.8M0.15%+85413F-HRTimeline
NISA INVESTMENT ADVISORS, LLC56,519$22.6M0.11%-79,16413F-HRTimeline
AMF Tjanstepension AB56,459$22.6M0.17%-3,82013F-HRTimeline
ABNER HERRMAN & BROCK LLC56,435$22.5M2.88%-65213F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…55,814$22.3M0.12%-1,07813F-HRTimelineGroup
Robeco Institutional Asset Management B…in group Robeco Institutional Asset Ma…54,108$21.6M0.04%+74713F-HRTimelineGroup