Original filing (PDF)20251007210454NAL0004989073001

AON CORPORATION

Name: AON CORPORATION — AON SAVINGS PLAN, Form 5500 (2024)
Creator: AON CORPORATION

Form 5500

FILING_RECEIVED

AON SAVINGS PLAN

401(k) retirement plan

Signals · 3

31% in single holdingNo recordkeeper disclosed7 service providers

Active participants

13,470

Accounts w/ balance

24,239

Plan assets (EOY)

$6.7B

Net assets (EOY)

$6.6B

How this plan invests

This plan

24 pooled trusts

Schedule D

1,124 securities

funds · stocks · CUSIPs

Holdings are itemized directly on this plan's Schedule of Assets, below.

Plan health score (directional)

/ 100

Grade A

Top-tier plan health

Directional indicator computed from public Form 5500 data — compliance, concentration, cost, vendor stack and participation. Not a fiduciary tool.

Compliance & disclosures

100

Concentration risk

Total plan cost

100

Vendor stack

Participation health

100

Knocking points off

Top holding "BLACKROCK US EQUITY MARKET FUND F" is 31% of plan.
No recordkeeper disclosed on Schedule C.

Helping the score

Below-peer total fees (3 bps vs 5 bps peer median).

Decision-maker contacts

CFO / Head of HR / Benefits Manager — verified email + LinkedIn for AON CORPORATION.

Plan sponsor

Name

AON CORPORATION

EIN

36-3051915

Address

MSC# 17755 · VANGUARD P.O. BOX 551343 · ATLANTA, GA · 30355

Phone

(312) 381-1000

Industry

Finance & Insurancesee all

Plan administrator

Name

ADMINISTRATIVE COMMITTEE

EIN

36-2883409

City

ATLANTA, GA

Phone

(312) 381-1000

Plan characteristics

Plan number

020

Plan year

2024

Plan year begin

2024-01-01

Tax period

2024-12-31

Filed

2025-10-07

Pension benefit codes

2F · ERISA section 404(c)

2G · Total participant-directed accounts

2J · 401(k) feature

2K · 401(m) arrangement

2R · Participant-directed brokerage (SDBA)

2S · Automatic enrollment

2T · Default investment account (QDIA)

3H · Sponsor in controlled / affiliated group

Audit & trust (Schedule H)

Auditor

ERNST & YOUNG, LLP

Trustee / custodian

—

Trustee phone

—

Service providers (Schedule C)

7 rows

Broker

Name	EIN	Location	Relation	Direct comp	Indirect comp
ALIGHT FINANCIAL SOLUTIONS, LLC	82-1061233	—	BROKER	$25K	—

Trustee

Name	EIN	Location	Relation	Direct comp	Indirect comp
THE NORTHERN TRUST CO	36-1561860	—	TRUSTEE	$658K	—

Other

Name	EIN	Location	Relation	Direct comp	Indirect comp
ALIGHT SOLUTIONS	82-1061233	—	NONE	$552K	—
THE VANGUARD GROUP	23-1945930	—	NONE	$309K	—
CURCIO WEBB	36-4171366	—	NONE	$177K	—
ERNST & YOUNG US LLP	34-6565596	—	NONE	$42K	—
PERSHING LLC	13-2741729	—	NONE	$0	—

Investments

985 direct securities · 24 pooled funds· $7.7B(100% of reported assets)

Rows tagged as a trust or pooled fund hold many underlying securities. Click one to drill into its own Schedule of Assets — where the individual funds, shares, and CUSIPs live.

Common Collective Trust

$5.1B

24 holdings

Uncategorized

$2.6B

985 holdings

Investment	Type	Shares / units	Cost	Current value	% of plan
US EQUITY MARKET INDEX FUND F CLASS BLACKROCK INSTITUTIONAL TRUST CO, N.A. · EIN 94-3219149 / PN 001	Common Collective Trust	—	—	$2.2B	32.6%
BLK MSCI ACWI EX-US INDEX SUPERFUND BLACKROCK INSTITUTIONAL TRUST CO, N.A. · EIN 83-0377925 / PN 001	Common Collective Trust	—	—	$513.4M	7.7%
PIMCO STOCKS PLUS STRATEGY SEI TRUST COMPANY · EIN 27-0834899 / PN 035	Common Collective Trust	—	—	$507.4M	7.6%
BLACKROCK MSCI ACWI EX US INDEX SUPERFUND F	—	—	—	$501.9M	7.5%
MFO VANGUARD HORIZON FDS CAP OPPORTUNITYFD ADMIRAL SHS #5111	—	—	—	$362.2M	5.4%
MFO ARROWSTREET US EQUITY CIT CL H GLOBAL TRUST COMPANY · EIN 93-6953449 / PN 010	Common Collective Trust	—	—	$238.4M	3.6%
MF0 BLACKROCK TOTAL RETURN BND FD J BLACKROCK INSTITUTIONAL TRUST COMPANY, N.A. · EIN 93-2705906 / PN 001	Common Collective Trust	—	—	$197.8M	2.9%
JPMCB CORE DIVERSIFIED COMRCL PRPTY JPMORGAN CHASE BANK, N.A. · EIN 47-2818728 / PN 001	Common Collective Trust	—	—	$185.1M	2.8%
US DEBT INDEX FUND F CLASS BLACKROCK INSTITUTIONAL TRUST COMPANY, N.A. · EIN 94-3291425 / PN 001	Common Collective Trust	—	—	$148.9M	2.2%
BLACKROCK US DEBT INDEX F	—	—	—	$130.5M	1.9%
Intermediate Core Fund	—	—	—	$128.2M	1.9%
AON SDA ASSET	—	—	—	$127.7M	1.9%
Intermediate Core Fund	—	—	—	$124.4M	1.9%
PGIM FIXED INCM PRU STRATEGIC FUND PRUDENTIAL TRUST CO · EIN 23-6994310 / PN 233	Common Collective Trust	—	—	$124.2M	1.9%
Intermediate Core Fund	—	—	—	$123.8M	1.8%
MFO EARNEST PARTNERS SMID CAP CORE SEI TRUST COMPANY · EIN 26-4377500 / PN 041	Common Collective Trust	—	—	$114.5M	1.7%
CAPITAL GROUP CORE PLUS TOTAL RETUR CAPITAL BANK AND TRUST COMPANY · EIN 95-6597294 / PN 684	Common Collective Trust	—	—	$113.0M	1.7%
ARROWSTREET INTL EQTY ACWI EXUS CIT GLOBAL TRUST COMPANY-ARROWSTREET · EIN 61-6553401 / PN 004	Common Collective Trust	—	—	$105.7M	1.6%
Term Fund 2028	—	—	—	$105.0M	1.6%
FTSE EPRA NAREIT US REAL ESTATE SEC BLACKROCK INSTITUTIONAL TRUST CO, N.A. · EIN 84-3852261 / PN 001	Common Collective Trust	—	—	$97.0M	1.4%
PGIM RETIREMENT REAL ESTATE FUND II PGIM RETIREMENT REAL ESTATE FUND II LP · EIN 83-1921274 / PN 001	Common Collective Trust	—	—	$95.0M	1.4%
EATON VANCE TRUST COMP MULTI-ASSET EATON VANCE TRUST COMPANY · EIN 30-6442278 / PN 005	Common Collective Trust	—	—	$91.2M	1.4%
NT SUB-ADV CF PZENA INT VAL ALL CTR RELIANCE TRUST COMPANY · EIN 90-6169542 / PN 007	Common Collective Trust	—	—	$79.2M	1.2%
PINESTONE ASS MGMT CIT INTL EQ CIT SEI TRUST COMPANY · EIN 99-1858262 / PN 182	Common Collective Trust	—	—	$78.8M	1.2%
Term Fund 2028	—	—	—	$78.0M	1.2%
Term Fund 2028	—	—	—	$72.5M	1.1%
BLACKROCK MSCI ACWI ESG FOCUS INDX BLACKROCK INSTITUTIONAL TRUST CO, N.A. · EIN 83-1496408 / PN 001	Common Collective Trust	—	—	$49.2M	0.7%
BLACKROCK MSCI ACWI IMI INDEX FD F BLACKROCK INSTITUTIONAL TRUST CO, N.A. · EIN 82-5170825 / PN 001	Common Collective Trust	—	—	$45.4M	0.7%
NT COLLECT GOVT SHORT TERM INVT FD NORTHERN TRUST INVESTMENTS, INC. · EIN 45-6138589 / PN 068	Common Collective Trust	—	—	$43.4M	0.6%
BLACKROCK U.S. TREASURY INFLATION PROTECTED SECURITIES FUND F CLASS	—	—	—	$31.5M	0.5%
BLACKROCK US TRSRY INFLTN PRTCT SEC BLACKROCK INSTITUTIONAL TRUST CO, N.A. · EIN 36-4495972 / PN 001	Common Collective Trust	—	—	$31.5M	0.5%
NT COLLECTIVE GOVT SHORT TERM INVT FD	—	—	—	$31.0M	0.5%
Participant Loans (1.00% -9.50%)	—	—	—	$25.6M	0.4%
MICROSOFT CORP COM	—	—	—	$24.1M	0.4%
APPLE INC COM STK	—	—	—	$19.8M	0.3%
NVIDIA CORP COM	—	—	—	$19.5M	0.3%
BLACKROCK US DEBT INDEX F	—	—	—	$18.5M	0.3%
AMAZON COM INC COM	—	—	—	$17.4M	0.3%
L&G DEVELOPED MKTS BLNCD MLTI-FACT RELIANCE TRUST COMPANY · EIN 35-7085469 / PN 031	Common Collective Trust	—	—	$15.9M	0.2%
ALPHABET INC CAPITAL STOCK USD0.001 CL A	—	—	—	$15.0M	0.2%
Term Fund 2026	—	—	—	$13.6M	0.2%
UNITED STS TREAS BILLS 0% T-BILL 05-08-2025	—	—	—	$13.6M	0.2%
FNMA 30 YR PASS-THROUGHS 5.5% 30 YEARS SETTLES JAN	—	—	—	$12.6M	0.2%
Term Fund 2026	—	—	—	$12.4M	0.2%
Term Fund 2027	—	—	—	$12.2M	0.2%
Term Fund 2024	—	—	—	$12.1M	0.2%
Term Fund 2025	—	—	—	$12.0M	0.2%
BLACKROCK MSCI ACWI EX US INDEX SUPERFUND F	—	—	—	$11.5M	0.2%
Term Fund 2027	—	—	—	$11.1M	0.2%
Term Fund 2024	—	—	—	$10.9M	0.2%
META PLATFORMS INC COM USD0.000006 CL 'A'	—	—	—	$10.8M	0.2%
Term Fund 2025	—	—	—	$10.8M	0.2%
US TREASURY N/B 4.25% 08-15-2054	—	—	—	$10.5M	0.2%
NT COLLECTIVE GOVT SHORT TERM INVT FD	—	—	—	$8.7M	0.1%
UNITED STATES OF AMER TREAS BILLS 0% T-BILL 03-20-2025	—	—	—	$8.5M	0.1%
FNMA 30 YEAR PASS-THROUGHS 6% 30 YEARS SETTLES FEBRUARY	—	—	—	$8.5M	0.1%
SCHWAB CHARLES CORP COM NEW	—	—	—	$7.8M	0.1%
FISERV INC COM	—	—	—	$7.7M	0.1%
FNMA SINGLE FAMILY MORTGAGE 4.0% MAT 30 YEARS SETTLES FEBRUARY	—	—	—	$7.6M	0.1%
FNMA SINGLE FAMILY MORTGAGE 4.5% MAT 30 YEARS SETTLES FEBRUARY	—	—	—	$7.4M	0.1%
MASTERCARD INCORPORATED COM USD0.0001 CLASS A	—	—	—	$7.2M	0.1%
SSGA TR CO INVTFDS US HIGH YIELD BD STATE STREET GLOBAL ADVISORS TRYST COMPANY · EIN 32-6528132 / PN 006	Common Collective Trust	—	—	$6.8M	0.1%
RTX CORPORATION COMSTK	—	—	—	$6.5M	<0.1%
Term Fund 2024	—	—	—	$6.4M	<0.1%
INTUIT COM	—	—	—	$6.3M	<0.1%
Term Fund 2025	—	—	—	$6.3M	<0.1%
JOHNSON CTLS INTL PLC COM USD0.01	—	—	—	$6.3M	<0.1%
WELLS FARGO & CO NEW COM STK	—	—	—	$6.2M	<0.1%
FISERV INC COM	—	—	—	$6.2M	<0.1%
Term Fund 2027	—	—	—	$5.8M	<0.1%
METLIFE INC COM STK USD0.01	—	—	—	$5.6M	<0.1%
US TREASURY N/B 3.875% 08-15-2034	—	—	—	$5.2M	<0.1%
SANOFI SPONSORED ADR	—	—	—	$4.9M	<0.1%
UNITEDHEALTH GROUP INC COM	—	—	—	$4.8M	<0.1%
VISA INC COM CL A STK	—	—	—	$4.8M	<0.1%
FEDEX CORP COM	—	—	—	$4.5M	<0.1%
INTUITIVE SURGICAL INC COM NEW STK	—	—	—	$4.4M	<0.1%
CHARTER COMMUNICATIONS INC NEW CLA CL A	—	—	—	$4.4M	<0.1%
AMAZON COM INC COM	—	—	—	$4.4M	<0.1%
MICROSOFT CORP COM	—	—	—	$4.3M	<0.1%
BANK NEW YORK MELLON CORP COM STK	—	—	—	$4.2M	<0.1%
ELI LILLY & CO COM	—	—	—	$4.2M	<0.1%
OCCIDENTAL PETROLEUM CORP	—	—	—	$4.1M	<0.1%
Term Fund 2026	—	—	—	$4.1M	<0.1%
GILEAD SCIENCES INC	—	—	—	$3.9M	<0.1%
SERVICENOW INC COM USD0.001	—	—	—	$3.9M	<0.1%
CAPITAL ONE FINL CORP COM	—	—	—	$3.8M	<0.1%
CVS HEALTH CORP COM	—	—	—	$3.5M	<0.1%
NETFLIX INC COM STK	—	—	—	$3.5M	<0.1%
BOOKING HLDGS INC COM	—	—	—	$3.5M	<0.1%
AMPHENOL CORP NEW CL A	—	—	—	$3.5M	<0.1%
NORFOLK SOUTHN CORP COM	—	—	—	$3.4M	<0.1%
UNITED STATES OF AMER TREAS NOTES 4.25% 11-15-2034	—	—	—	$3.4M	<0.1%
ALPHABET INC CAPITAL STOCK USD0.001 CL A	—	—	—	$3.3M	<0.1%
FNMA SINGLE FAMILY MTG 5 30 YEARS SETTLES FEB	—	—	—	$3.3M	<0.1%
BOOKING HLDGS INC COM	—	—	—	$3.3M	<0.1%
NT COLLECTIVE GOVT SHORT TERM INVT FD	—	—	—	$3.3M	<0.1%
UNITED STATES OF AMER TREAS BONDS 4.5% 11-15-2054	—	—	—	$3.2M	<0.1%
GE AEROSPACE	—	—	—	$3.2M	<0.1%
FIDELITY NATL INFORMATION SVCS INC COM STK	—	—	—	$3.2M	<0.1%
COMCAST CORP NEW-CL A	—	—	—	$3.1M	<0.1%
ALPHABET INC CAP STK USD0.001 CL C	—	—	—	$3.0M	<0.1%
SECRETARIA TESOURO 10% GTD 01/01/31 BRL1000'F'	—	—	—	$3.0M	<0.1%
ADR GSK PLC	—	—	—	$3.0M	<0.1%
HUMANA INC COM	—	—	—	$2.9M	<0.1%
THE CIGNA GROUP	—	—	—	$2.8M	<0.1%
STRYKER CORP	—	—	—	$2.8M	<0.1%
GOLDMAN SACHS GROUP INC COM	—	—	—	$2.7M	<0.1%
T-MOBILE US INC COM	—	—	—	$2.7M	<0.1%
THE CIGNA GROUP	—	—	—	$2.7M	<0.1%
META PLATFORMS INC COM USD0.000006 CL 'A'	—	—	—	$2.6M	<0.1%
ADR ANHEUSER BUSCH INBEV SA/NV SPONSOREDADR	—	—	—	$2.6M	<0.1%
AIR PROD & CHEM INC COM	—	—	—	$2.5M	<0.1%
WILLIAMS CO INC COM	—	—	—	$2.5M	<0.1%
AVANTOR INC COM	—	—	—	$2.4M	<0.1%
BAKER HUGHES CO	—	—	—	$2.4M	<0.1%
UNITEDHEALTH GROUP INC COM	—	—	—	$2.3M	<0.1%
ZIMMER BIOMET HLDGS INC COM	—	—	—	$2.3M	<0.1%
INTL FLAVORS & FRAGRANCES INC COM	—	—	—	$2.3M	<0.1%
FNMA 30 YEAR PASS-THROUGHS 6.0% MAT 30 YEARS SETTLES JANUARY	—	—	—	$2.2M	<0.1%
SHOPIFY INC CL A SUB VTG SHS SHOPIFY INC	—	—	—	$2.2M	<0.1%
HALEON PLC ADR	—	—	—	$2.2M	<0.1%
TE CONNECTIVITY PLC COM USD0.01	—	—	—	$2.0M	<0.1%
COGNIZANT TECH SOLUTIONS CORP CL A	—	—	—	$1.9M	<0.1%
REGENERON PHARMACEUTICALS INC COM	—	—	—	$1.9M	<0.1%
ROSS STORES INC COM	—	—	—	$1.8M	<0.1%
CISCO SYSTEMS INC	—	—	—	$1.8M	<0.1%
SBA COMMUNICATIONS CORP	—	—	—	$1.8M	<0.1%
HUBSPOT INC COM	—	—	—	$1.7M	<0.1%
BAXTER INTL INC COM	—	—	—	$1.7M	<0.1%
BANK OF AMERICA CORP	—	—	—	$1.7M	<0.1%
EQUIFAX INC COM	—	—	—	$1.7M	<0.1%
HOWMET AEROSPACE INC COM USD1.00 WI	—	—	—	$1.7M	<0.1%
COUPANG INC	—	—	—	$1.6M	<0.1%
ATLASSIAN CORP CL A	—	—	—	$1.6M	<0.1%
INGERSOLL RAND INC COM	—	—	—	$1.6M	<0.1%
ADR NOVARTIS AG	—	—	—	$1.6M	<0.1%
ADOBE INC COM	—	—	—	$1.5M	<0.1%
SUN COMMUNITIES INC COM	—	—	—	$1.5M	<0.1%
DOMINION ENERGY INC COM STK NPV	—	—	—	$1.5M	<0.1%
CHIPOTLE MEXICAN GRILL INC COM STK	—	—	—	$1.5M	<0.1%
ADR ARGENX SE SPONSORED ADS	—	—	—	$1.5M	<0.1%
UNITED STATES TREAS NTS 3.875% 09-30-2029	—	—	—	$1.5M	<0.1%
GE HEALTHCARE TECHNOLOGIES INC COM	—	—	—	$1.5M	<0.1%
LYONDELLBASELL IND N V COM USD0.01 CL 'A'	—	—	—	$1.4M	<0.1%
CONOCOPHILLIPS COM	—	—	—	$1.4M	<0.1%
FAIR ISAAC CORPORATION COM	—	—	—	$1.4M	<0.1%
BOEING CO COM	—	—	—	$1.4M	<0.1%
Voya MCA-60406	—	—	—	$1.4M	<0.1%
HP INC COM	—	—	—	$1.4M	<0.1%
DANAHER CORP COM	—	—	—	$1.4M	<0.1%
ADR ROCHE HLDG LTD SPONSORED ADR ISIN #US771195104	—	—	—	$1.3M	<0.1%
BECTON DICKINSON & CO COM	—	—	—	$1.3M	<0.1%
FOX CORP CLA	—	—	—	$1.3M	<0.1%
ENTEGRIS INC COM	—	—	—	$1.3M	<0.1%
CARRIER GLOBAL CORPORATION COM USD0.01 WI	—	—	—	$1.3M	<0.1%
Prudential GA-62389	—	—	—	$1.3M	<0.1%
SCHWAB CHARLES CORP COM NEW	—	—	—	$1.3M	<0.1%
UNITED STATES OF AMER TREAS NOTES 1.875% 07-15-2034	—	—	—	$1.3M	<0.1%
ELANCO ANIMAL HEALTH INC COM	—	—	—	$1.2M	<0.1%
ADR ASML HLDG NV NY REG 2012 (POST REV SPLIT)	—	—	—	$1.2M	<0.1%
INCYTE CORP COM	—	—	—	$1.2M	<0.1%
AMER ELEC PWR CO INC COM	—	—	—	$1.2M	<0.1%
ADR SONOVA HLDG AG UNSP ADR	—	—	—	$1.1M	<0.1%
UNITED STATES TREAS BDS 2.125% 02-15-2054	—	—	—	$1.1M	<0.1%
Cash (Various Currencies)	—	—	—	$1.1M	<0.1%
MOLSON COORS BEVERAGE COMPANY COM USD0.01 CLASS B	—	—	—	$1.1M	<0.1%
CELANESE CORP DEL COM STK	—	—	—	$1.1M	<0.1%
BRISTOL MYERS SQUIBB CO COM	—	—	—	$1.1M	<0.1%
STATE STR CORP COM	—	—	—	$1.1M	<0.1%
WI TREASURY SEC 3.875% 05-15-2043	—	—	—	$1.1M	<0.1%
COHERENT CORP COM	—	—	—	$1.1M	<0.1%
UNITED STATES OF AMER TREAS NOTES 3.625% 09-30-2031	—	—	—	$1.1M	<0.1%
GEN MTRS FINL CO FIXED 6% DUE 01-09-2028	—	—	—	$1.1M	<0.1%
V F CORP COM	—	—	—	$1.1M	<0.1%
MERCADOLIBRE INC COM STK	—	—	—	$1.0M	<0.1%
LULULEMON ATHLETICA INC COM	—	—	—	$1.0M	<0.1%
BIOMARIN PHARMACEUTICAL INC COM ISIN CH0008107010	—	—	—	$1.0M	<0.1%
NISSAN AUTO RECEIVABLES 2024-A OWNER SR 24-A CL A2B FLTG RT 12-15-2026	—	—	—	$1.0M	<0.1%
AEGON LTD AMER REGD CERT	—	—	—	$1.0M	<0.1%
SCHLUMBERGER LTD COM	—	—	—	$989K	<0.1%
GAP INC COM	—	—	—	$957K	<0.1%
ADVANCED MICRO DEVICES INC COM	—	—	—	$949K	<0.1%
ALNYLAM PHARMACEUTICALS INC COM	—	—	—	$941K	<0.1%
DYNATRACE INC COM	—	—	—	$937K	<0.1%
UNITED STATES TREAS NTS DTD 06/30/2024 4.25% 06-30-2031	—	—	—	$918K	<0.1%
HONDA AUTO 5.48% DUE 11-18-2026	—	—	—	$891K	<0.1%
UBS GROUP AG COMMON STOCK	—	—	—	$867K	<0.1%
TRADEWEB MKTS INC CLA CL A	—	—	—	$860K	<0.1%
ADR HONDA MTR LTD ADR REPRESENTING 1 ORDSHS	—	—	—	$854K	<0.1%
WELLS FARGO & CO 4.478% 04-04-2031	—	—	—	$847K	<0.1%
UNITED STATES OF AMER TREAS NOTES 4.125%02-15-2027	—	—	—	$815K	<0.1%
FORTIVE CORP COM MON STOCK	—	—	—	$802K	<0.1%
GENERAL MTRS FINL CO INC 1.25% DUE 01-08-2026 REG	—	—	—	$795K	<0.1%
GAMING & LEISURE PPTYS INC COM	—	—	—	$774K	<0.1%
CMO BENCHMARK MORTGAGE TRUST SR 22-B33 CL A2 3.3186% 02-15-2027	—	—	—	$769K	<0.1%
CMO BANK 2021-BNK32 CL A-2 1.985% DUE 03-15-2026 REG	—	—	—	$759K	<0.1%
MEDTRONIC PLC COMMON STOCK	—	—	—	$743K	<0.1%
FOX CORP CL B CL B	—	—	—	$712K	<0.1%
UNITED STATES TREAS 2.375% DUE 02-15-2042 REG	—	—	—	$689K	<0.1%

Showing top 200 of 1,009 investments by value.