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Disclosery

AON AON PLC

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Stock (common), issuer CIK 315293

1,217 managers (1,247 13F filers) reported a position in AON shares at 2025-09-30, 185,929,870 shares in all. 116 filers opened a position and 86 filers sold out during the quarter.

Managers
1,217
13F filers
1,247
New
116
Added
477
Reduced
401
Sold out
86
Shares held by filers
185,929,870

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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
ARIZONA STATE RETIREMENT SYSTEM59,940$21.4M0.11%+3,10913F-HRTimeline
BARINGS LLCin group BARINGS LLC59,633$21.3M0.4%+55,18613F-HRTimelineGroup
BANK OF NOVA SCOTIAin group BANK OF NOVA SCOTIA59,174$21.1M0.04%+11,39513F-HRTimelineGroup
STATE OF MICHIGAN RETIREMENT SYSTEM58,358$20.8M0.1%-40013F-HRTimeline
Sone Capital Management, LLC58,161$20.7M1.74%new13F-HRTimeline
Financiere des Professionnels - Fonds d…56,961$20.3M1.17%-59413F-HRTimeline
Robeco Institutional Asset Management B…in group Robeco Institutional Asset Ma…56,474$20.1M0.03%-70113F-HRTimelineGroup
Engineers Gate Manager LP56,215$20M0.23%+55,36413F-HRTimeline
PICTON MAHONEY ASSET MANAGEMENT55,589$19.8M0.25%+2,77613F-HRTimeline
ABNER HERRMAN & BROCK LLC55,281$19.7M2.03%-50613F-HRTimeline
MANAGED ASSET PORTFOLIOS, LLC54,878$19.6M2.42%+59813F-HRTimeline
Czech National Bank54,765$19.5M0.13%+1,98213F-HRTimeline
CAPITAL GROUP INVESTMENT MANAGEMENT PTE…group of 2 filers holding53,472$19.1M-134,174Timeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding53,326$19M+2,143Timeline
Glenmede Investment Management, LP52,627$18.8M0.09%-4,96013F-HRTimeline
Motley Fool Asset Management LLCgroup of 2 filers holding52,295$18.6M-4,254Timeline
Orion Porfolio Solutions, LLC51,962$18.5M0.14%-8,88713F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…51,780$18.5M0.09%-1,18013F-HRTimeline
Cubist Systematic Strategies, LLC51,328$18.3M0.26%new13F-HRTimeline
FACTORY MUTUAL INSURANCE CO51,000$18.2M0.18%+5,00013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC50,909$18.2M0.07%-5,07613F-HRTimeline
XPONANCE LLC50,563$18M0.14%-76913F-HRTimeline
Global Frontier Investments LLC49,000$17.5M3.37%013F-HRTimeline
CIBC WORLD MARKET INC.48,997$17.5M0.04%+1,69913F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.48,394$17.3M0.26%-12,51113F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Cullen/Frost Bankers, Inc.in group Cullen/Frost Bankers, Inc.48,303$17.2M0.2%+33713F-HRTimelineGroup
AMALGAMATED BANK48,275$17.2M0.12%+47713F-HRTimeline
FORSTA AP-FONDEN48,000$17.1M0.1%+5,40013F-HRTimeline
AXA Investment Managers S.A.47,764$17M0.05%13F-HRTimeline
OPPENHEIMER ASSET MANAGEMENT INC.group of 2 filers holding46,597$16.6M-6,690Timeline
Public Sector Pension Investment Board46,530$16.6M0.06%+2,05513F-HRTimeline
Retirement Systems of Alabama45,996$16.4M0.05%-34113F-HRTimeline
KORNITZER CAPITAL MANAGEMENT INC /KS44,866$16M0.32%013F-HRTimeline
Lighthouse Investment Partners, LLCin group Lighthouse Investment Partner…43,478$15.5M0.56%new13F-HRTimelineGroup
ProShare Advisors LLC43,271$15.4M0.03%-4,52813F-HRTimeline
GM Advisory Group, LLC41,709$14.9M0.63%013F-HRTimeline
Mariner, LLCin group Mariner, LLC41,520$14.8M0.02%+81413F-HRTimelineGroup
Varma Mutual Pension Insurance Co41,000$14.6M0.09%+3,30013F-HRTimeline
HighTower Advisors, LLC40,965$14.6M0.02%+2,24213F-HRTimeline
Artemis Investment Management LLP40,829$14.6M0.18%-23,34613F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC40,399$14.4M0.02%+2,79613F-HRTimelineGroup
STEPHENS INC /AR/in group Stephens Investment Managemen…40,222$14.3M0.18%-56313F-HRTimelineGroup
CORSAIR CAPITAL MANAGEMENT, L.P.39,746$14.2M2.51%-62213F-HR/ATimeline
Avalon Trust Co39,585$14.1M0.92%-19613F-HRTimeline
DNB Asset Management ASin group DNB Asset Management AS39,483$14.1M0.05%+2,86313F-HRTimelineGroup
Boston Common Asset Management, LLC39,365$14M0.39%+4,53213F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…38,449$13.7M0.07%new13F-HRTimelineGroup
1832 Asset Management L.P.37,997$13.5M0.02%+3,99213F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC37,413$13.3M0.05%+17613F-HRTimelineGroup
KBC Group NVin group KBC Group NV36,233$12.9M0.03%+4,03513F-HRTimelineGroup
Williams Jones Wealth Management, LLC.35,797$12.8M0.15%-14,09413F-HRTimeline
Premier Fund Managers Ltd35,828$12.7M0.52%+1,60013F-HRTimeline
TOWER BRIDGE ADVISORS35,282$12.6M1.26%-5,32813F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP34,902$12.4M0.01%-206,71713F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC34,781$12.4M0.01%-2,56413F-HRTimelineGroup
Utah Retirement Systems34,698$12.4M0.12%+1,62613F-HRTimeline
Police & Firemen's Retirement System of…33,790$12M0.1%+1,90713F-HRTimeline
Cinctive Capital Management LP33,686$12M0.6%new13F-HRTimeline
Borer Denton & Associates, Inc.33,112$11.8M3.9%+33513F-HRTimeline
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.32,966$11.8M0.04%+2,30413F-HRTimelineGroup
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP32,627$11.6M0.01%+63413F-HRTimelineGroup
ZEVIN ASSET MANAGEMENT LLC32,479$11.6M1.68%-54513F-HRTimeline
Aryeh Capital Management Ltd.32,300$11.5M9.64%+6,90013F-HRTimeline
Creative Planningin group Creative Planning32,096$11.4M0.01%+2,62013F-HRTimelineGroup
ExodusPoint Capital Management, LP31,872$11.4M0.16%new13F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\31,357$11.2M0.01%+41813F-HRTimelineGroup
NEOS Investment Management LLC31,209$11.1M0.08%+10,21713F-HRTimeline
PEAPACK GLADSTONE FINANCIAL CORP30,327$10.8M0.14%+10513F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.29,894$10.7M0.02%+59713F-HRTimelineGroup
SILVERCREST ASSET MANAGEMENT GROUP LLC30,065$10.7M0.07%+3,45213F-HRTimeline
BRITISH COLUMBIA INVESTMENT MANAGEMENT …29,482$10.5M0.06%-1,10613F-HRTimeline
State of Alaska, Department of Revenue29,270$10.4M0.11%-66513F-HRTimeline
New York Life Investment Management LLCin group New York Life Investment Mana…29,246$10.4M0.09%-9113F-HRTimelineGroup
Trexquant Investment LP29,121$10.4M0.11%+9,67213F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…29,113$10.4M0.06%new13F-HR/ATimelineGroup
MOTCO28,963$10.3M0.94%+15713F-HRTimeline
Baird Financial Group, Inc.in group Baird Financial Group, Inc.28,504$10.2M0.02%+66813F-HRTimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD28,379$10.1M0.01%-168,53213F-HRTimeline
WEDGE CAPITAL MANAGEMENT L L P/NC28,317$10.1M0.17%-3,45313F-HRTimeline
BEESE FULMER INVESTMENT MANAGEMENT, INC.27,977$9.98M0.69%+1,26113F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC27,876$9.94M0.11%-1,41613F-HRTimeline
Sumitomo Mitsui DS Asset Management Com…in group SUMITOMO MITSUI FINANCIAL GRO…27,853$9.93M0.08%+1,71313F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC27,415$9.78M<0.01%+95013F-HRTimelineGroup
Elo Mutual Pension Insurance Co27,243$9.71M0.16%+7,69913F-HRTimeline
Cetera Investment Advisers27,162$9.69M0.01%+6,35913F-HRTimeline
FIFTH THIRD BANK, NATIONAL ASSOCIATIONgroup of 2 filers holding27,064$9.65M-322Timeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC26,911$9.6M0.06%+1,96713F-HRTimeline
FIRST MANHATTAN CO. LLC.26,782$9.55M0.03%-1,56013F-HRTimeline
DZ BANK AG Deutsche Zentral Genossensch…in group DZ BANK AG Deutsche Zentral G…26,692$9.52M0.01%-31,18513F-HRTimelineGroup
GHP Investment Advisors, Inc.26,635$9.5M0.4%+16013F-HRTimeline
MACQUARIE GROUP LTDin group MACQUARIE GROUP LTD26,409$9.42M0.01%-1,72013F-HRTimelineGroup
COMMONWEALTH EQUITY SERVICES, LLC25,906$9.24M0.01%+79713F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…25,868$9.22M0.03%+27913F-HRTimeline
Cornerstone Advisors, LLC25,800$9.2M0.3%013F-HRTimeline
CITIZENS FINANCIAL GROUP INC/RIin group CITIZENS FINANCIAL GROUP INC/…25,784$9.19M0.13%-49213F-HRTimelineGroup
M&T Bank Corpin group M&T Bank Corp25,778$9.19M0.03%-3,69613F-HRTimelineGroup
CAPTRUST FINANCIAL ADVISORS25,490$9.09M0.02%-75813F-HRTimeline
Marks Group Wealth Management, Inc24,771$8.83M0.82%-85913F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND24,695$8.81M0.11%+6,04313F-HRTimeline
YHB Investment Advisors, Inc.24,535$8.75M0.64%+3013F-HRTimeline
CLIFFORD SWAN INVESTMENT COUNSEL LLC23,896$8.52M0.28%+5,94413F-HRTimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…23,374$8.33M0.09%-1,38913F-HRTimelineGroup
Intermede Investment Partners Ltd23,059$8.22M0.34%-93113F-HRTimeline
Ethic Inc.22,580$8.05M0.13%-2,68813F-HRTimeline
Haverford Financial Services, Inc.22,275$7.94M2.23%-82713F-HRTimeline
Live Oak Private Wealth LLC22,142$7.9M1.1%+34513F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC22,096$7.88M0.05%new13F-HRTimelineGroup
CARDEROCK CAPITAL MANAGEMENT INC21,641$7.72M1.88%+1,39613F-HRTimeline
Fiduciary Group, LLC21,629$7.71M0.68%-27813F-HRTimeline
Dash Acquisitions Inc.23,575$7.69M1.53%-31213F-HRTimeline
Kestra Advisory Services, LLCgroup of 2 filers holding21,181$7.55M+349Timeline
Violich Capital Management, Inc.21,008$7.49M0.89%-30013F-HRTimeline
OLD NATIONAL BANCORP /IN/20,961$7.47M0.13%+16,26813F-HRTimeline
Bridgewater Advisors Inc.21,841$7.43M0.51%+15413F-HRTimeline
PRUDENTIAL PLCin group PRUDENTIAL PLC20,800$7.42M0.05%-1,57413F-HRTimelineGroup
GERBER, LLC20,453$7.29M4.58%-1,26013F-HRTimeline
Employees Retirement System of Texas20,174$7.19M0.06%013F-HRTimeline
ASR Vermogensbeheer N.V.19,799$7.06M0.09%-6613F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP19,722$7.03M0.01%-28013F-HRTimelineGroup
STRATEGY ASSET MANAGERS LLC19,337$6.9M1.24%+18613F-HRTimeline
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …19,215$6.82M0.01%+2,15313F-HRTimelineGroup
Bell Asset Management Ltd19,075$6.8M1.86%-5,95413F-HRTimeline
KWMG, LLC18,989$6.77M0.59%+50113F-HRTimeline
COMMERCE BANKin group COMMERCE BANK18,798$6.7M0.04%-9013F-HRTimelineGroup
Kentucky Retirement Systemsgroup of 2 filers holding18,709$6.67M+787Timeline
Morningstar Investment Management LLCin group Morningstar Investment Manage…18,692$6.67M0.25%+15,39113F-HRTimelineGroup
Bleakley Financial Group, LLC18,641$6.65M0.15%+22713F-HRTimeline
Berman McAleer LLC18,129$6.46M0.9%13F-HRTimeline
Fayez Sarofim & Coin group Fayez Sarofim & Co18,039$6.43M0.01%+11813F-HRTimelineGroup
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…17,498$6.24M<0.01%-3,21313F-HRTimelineGroup
JOHNSON INVESTMENT COUNSEL INC17,421$6.21M0.05%-67013F-HRTimeline
Pacer Advisors, Inc.17,364$6.19M0.02%-3,88713F-HRTimeline
Avanza Fonder AB17,132$6.11M0.16%+1,85013F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…16,947$6.04M0.05%013F-HRTimeline
Biltmore Family Office, LLC16,549$5.9M0.84%013F-HRTimeline
Qsemble Capital Management, LP16,467$5.87M0.57%new13F-HRTimeline
GAMCO Investors (Gabelli)group of 2 filers holding16,438$5.86M+118Timeline
Cresset Asset Management, LLC16,377$5.84M0.03%+2,28613F-HR/ATimeline
Atria Investments, Inc16,241$5.79M0.07%-1,12813F-HRTimeline
MIZUHO SECURITIES USA LLCin group MIZUHO FINANCIAL GROUP INC15,705$5.76M0.12%+77913F-HRTimelineGroup
Sanctuary Advisors, LLC15,898$5.67M0.03%-74113F-HR/ATimeline
Interval Partners, LP15,873$5.66M0.12%new13F-HRTimeline
Ilmarinen Mutual Pension Insurance Co15,272$5.45M0.04%013F-HRTimeline
Pine Valley Investments Ltd Liability Co15,206$5.42M0.28%+1,25713F-HRTimeline
LBP AM SA15,152$5.4M0.07%+23913F-HRTimeline
Mediolanum International Funds Ltd15,144$5.37M0.06%+10,93713F-HRTimeline
IMC-Chicago, LLC14,736$5.25M0.09%+4,53313F-HRTimeline
WESBANCO BANK INC14,657$5.23M0.15%+64113F-HRTimeline
NewEdge Advisors, LLC14,619$5.21M0.02%-8513F-HRTimeline
Allianz Asset Management GmbHin group Allianz SE14,182$5.06M0.01%-57,82513F-HRTimelineGroup
PITTENGER & ANDERSON INC13,815$4.93M0.18%013F-HRTimeline
Arlington Trust Co LLCgroup of 2 filers holding13,742$4.9M+838Timeline
Illinois Municipal Retirement Fund13,481$4.81M0.06%+1,75513F-HRTimeline
Jasper Ridge Partners, L.P.13,390$4.77M0.11%013F-HRTimeline
Wealthfront Advisers LLC13,383$4.77M0.01%+1,22413F-HRTimeline
Sequoia Financial Advisors, LLC13,159$4.69M0.03%-14513F-HRTimeline
MML INVESTORS SERVICES, LLC13,142$4.69M0.01%+67613F-HRTimeline
Quantbot Technologies LP13,141$4.69M0.13%-15,51613F-HRTimeline
Modera Wealth Management, LLC13,128$4.68M0.05%-14413F-HRTimeline
iSAM Funds (UK) Ltdin group iSAM Funds (UK) Ltd13,109$4.67M0.96%new13F-HRTimelineGroup
COMGEST GLOBAL INVESTORS S.A.S.in group COMGEST GLOBAL INVESTORS S.A.…13,100$4.67M0.08%new13F-HRTimelineGroup
Allspring Global Investments Holdings, …in group Allspring Global Investments …12,932$4.66M0.01%+3,20613F-HRTimelineGroup
MERCER GLOBAL ADVISORS INC /ADV13,023$4.64M0.01%+4,87413F-HRTimeline
Federation des caisses Desjardins du Qu…12,979$4.63M0.02%+76213F-HRTimeline
YACKTMAN ASSET MANAGEMENT LP12,915$4.61M0.06%013F-HRTimeline
Regency Capital Management Inc.\DE12,862$4.59M2.18%-40013F-HRTimeline
OSTRUM ASSET MANAGEMENT12,699$4.53M0.2%+3,17813F-HRTimeline
DIVERSIFIED TRUST CO12,686$4.52M0.09%+5,20013F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC12,625$4.5M0.01%+1,38013F-HRTimelineGroup
Capital Planning Advisors, LLC12,363$4.41M0.61%-1,12513F-HRTimeline
Accurate Wealth Management, LLC12,142$4.38M0.58%-3513F-HRTimeline
IEQ CAPITAL, LLC12,239$4.36M0.01%+11,00713F-HRTimeline
BUCKHEAD CAPITAL MANAGEMENT LLC12,151$4.33M1.57%+11513F-HRTimeline
Machina Capital S.A.S.12,134$4.33M0.76%+9,09813F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC12,082$4.31M0.01%+82413F-HRTimelineGroup
Oak Thistle LLC11,968$4.27M0.65%new13F-HRTimeline
SIMPLEX TRADING, LLC11,892$4.24M0.09%new13F-HRTimeline
REGIONS FINANCIAL CORPin group REGIONS FINANCIAL CORP11,678$4.16M0.03%-3,46713F-HR/ATimelineGroup
Callan Family Office, LLC11,675$4.16M0.13%+8,03413F-HRTimeline
Point72 (DIFC) Ltd11,641$4.15M0.29%new13F-HRTimeline
Norinchukin Bank, Thein group Norinchukin Bank, The11,563$4.12M0.06%+29113F-HRTimelineGroup
Savant Capital, LLCin group Savant Capital, LLC11,559$4.12M0.03%+10113F-HR/ATimelineGroup
Janney Montgomery Scott LLC11,556$4.12M0.01%+7813F-HRTimeline
CWM, LLCin group CWM, LLC11,460$4.09M0.01%+9513F-HRTimelineGroup
&PARTNERS11,399$4.07M0.03%+1,66213F-HRTimeline
Louisiana State Employees Retirement Sy…11,300$4.03M0.07%-10013F-HRTimeline
Wealthspire Retirement, LLC11,282$4.02M0.26%-6113F-HR/ATimeline
FIRST FOUNDATION ADVISORSin group FIRST FOUNDATION ADVISORS11,181$3.99M0.15%-2,30013F-HRTimelineGroup
Seascape Capital Management10,996$3.92M1.12%+14013F-HRTimeline
Lido Advisors, LLCin group Lido Advisors, LLC10,720$3.82M0.02%+1,09113F-HRTimelineGroup
Radnor Capital Management, LLC10,662$3.8M0.58%+7713F-HRTimeline
Vinva Investment Management Ltd10,697$3.79M0.07%+2,87613F-HRTimeline
Pure Financial Advisors, LLC10,634$3.79M0.06%+213F-HRTimeline
Empowered Funds, LLC10,620$3.79M0.04%+5,12713F-HRTimeline
SECURIAN ASSET MANAGEMENT, INC10,525$3.75M0.1%-75613F-HRTimeline
Maryland State Retirement & Pension Sys…10,467$3.73M0.08%+26213F-HRTimeline
Clearstead Advisors, LLC10,219$3.64M0.05%-5,50313F-HRTimeline
Metis Global Partners, LLC10,182$3.63M0.09%-45213F-HRTimeline
JENSEN INVESTMENT MANAGEMENT INC10,100$3.6M0.04%+30013F-HRTimeline
Union Heritage Capital, LLC9,967$3.55M1.15%013F-HRTimeline