# EDGAR Filing Document

**Accession Number:** 0001807958
**File Stem:** 0001193125-23-054085
**Filing Date:** 2023-2
**Character Count:** 9187
**Document Hash:** 2aad9abf2b2257173156856306704188
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-23-054085.hdr.sgml**: 20230228

**ACCESSION NUMBER**: 0001193125-23-054085

**CONFORMED SUBMISSION TYPE**: 8-A12B

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230228

**DATE AS OF CHANGE**: 20230228

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Aon plc
- **CENTRAL INDEX KEY:** 0000315293
- **STANDARD INDUSTRIAL CLASSIFICATION:** INSURANCE AGENTS BROKERS & SERVICES [6411]
- **IRS NUMBER:** 981539969
- **STATE OF INCORPORATION:** L2
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-A12B
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-07933
- **FILM NUMBER:** 23686858

**BUSINESS ADDRESS:**
- **STREET 1:** METROPOLITAN BUILDING
- **STREET 2:** JAMES JOYCE STREET
- **CITY:** DUBLIN 1
- **STATE:** L2
- **ZIP:** D01 K0Y8
- **BUSINESS PHONE:** 35312666000

**MAIL ADDRESS:**
- **STREET 1:** METROPOLITAN BUILDING
- **STREET 2:** JAMES JOYCE STREET
- **CITY:** DUBLIN 1
- **STATE:** L2
- **ZIP:** D01 K0Y8

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AON CORP
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** COMBINED INTERNATIONAL CORP
- **DATE OF NAME CHANGE:** 19870504
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Aon Global Holdings plc
- **CENTRAL INDEX KEY:** 0001807958
- **IRS NUMBER:** 981199820
- **STATE OF INCORPORATION:** X0
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-A12B
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39260
- **FILM NUMBER:** 23686860

**BUSINESS ADDRESS:**
- **STREET 1:** THE LEADENHALL BUILDING
- **STREET 2:** 122 LEADENHALL STREET
- **CITY:** LONDON
- **STATE:** X0
- **ZIP:** EC3V 4AN
- **BUSINESS PHONE:** 312-381-1000

**MAIL ADDRESS:**
- **STREET 1:** THE LEADENHALL BUILDING
- **STREET 2:** 122 LEADENHALL STREET
- **CITY:** LONDON
- **STATE:** X0
- **ZIP:** EC3V 4AN

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Aon Global Holdings Ltd
- **DATE OF NAME CHANGE:** 20200327
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Aon plc
- **CENTRAL INDEX KEY:** 0001808065
- **IRS NUMBER:** 981539969
- **STATE OF INCORPORATION:** L2
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-A12B
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39261
- **FILM NUMBER:** 23686859

**BUSINESS ADDRESS:**
- **STREET 1:** METROPOLITAN BUILDING
- **STREET 2:** JAMES JOYCE STREET
- **CITY:** DUBLIN 1
- **STATE:** L2
- **ZIP:** D01 K0Y8
- **BUSINESS PHONE:** 44 20 7623 5500

**MAIL ADDRESS:**
- **STREET 1:** 200 EAST RANDOLPH STREET
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60601
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Aon Corp
- **CENTRAL INDEX KEY:** 0001556748
- **STANDARD INDUSTRIAL CLASSIFICATION:** INSURANCE AGENTS BROKERS & SERVICES [6411]
- **IRS NUMBER:** 363051915
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-A12B
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-35928
- **FILM NUMBER:** 23686861

**BUSINESS ADDRESS:**
- **STREET 1:** 200 EAST RANDOLPH STREET
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60601
- **BUSINESS PHONE:** 312-381-1000

**MAIL ADDRESS:**
- **STREET 1:** 200 EAST RANDOLPH STREET
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60601

------

------

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, DC 20549** 

------

**Form 8-A** 

------

**FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES** 

**PURSUANT TO SECTION 12(b) OR (g) OF** 

**THE SECURITIES EXCHANGE ACT OF 1934** 

------

---

| | |
|:---|:---|
| **Aon plc**<br> **(Exact Name of Registrant as Specified in Its Charter)** | **Aon Global Limited**<br> **(Exact Name of Registrant as Specified in Its Charter)** |
| **Ireland**<br> **(Jurisdiction of Incorporation or Organization)** | **England and Wales**<br> **(Jurisdiction of Incorporation or Organization)** |
| **98-1539969**<br> **(I.R.S. Employer Identification no.)** | **98-1030901**<br> **(I.R.S. Employer Identification no.)** |
| <br> **Metropolitan Building**<br> **James Joyce Street**<br> **Dublin 1, Ireland D01 K0Y8**<br> **(Address of Principal Executive Offices)** | **The Aon Centre**<br> **The Leadenhall Building**<br> **122 Leadenhall Street**<br> **London, England, EC3V 4AN**<br> **(Address of Principal Executive Offices)** |
| **Aon Corporation**<br> **(Exact Name of Registrant as Specified in Its Charter)** | **Aon Global Holdings plc**<br> **(Exact Name of Registrant as Specified in Its Charter)** |
| **Delaware**<br> **(Jurisdiction of Incorporation or Organization)** | **England and Wales**<br> **(Jurisdiction of Incorporation or Organization)** |
| **36-3051915**<br> **(I.R.S. Employer Identification no.)** | **98-1199820**<br> **(I.R.S. Employer Identification no.)** |
| <br> **200 East Randolph Street**<br> **Chicago, Illinois 60601**<br> **United States of America**<br> **(Address of Principal Executive Offices)** | **The Aon Centre**<br> **The Leadenhall Building**<br> **122 Leadenhall Street**<br> **London, England, EC3V 4AN**<br> **(Address of Principal Executive Offices)** |
| **Securities to be registered pursuant to Section 12(b) of the Act:** | **Securities to be registered pursuant to Section 12(b) of the Act:** |
| **Title of each class**<br> **to be so registered** | **Name of each exchange on which**<br> **each class is to be registered** |
| **5.350% Senior Notes due 2033** | **The New York Stock Exchange** |

---

------

If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c), check the following box. ☒

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d), check the following box. ☐

If this form relates to the registration of a class of securities concurrently with a Regulation A offering, check the following box. ☐

Securities Act registration statement or Regulation A offering statement file number to which this form relates (if applicable): 333-238189

Securities to be registered pursuant to Section 12(g) of the Act: None.

------

**Item 1. Description of Registrant's Securities to be Registered.** 

Aon Corporation ("Aon Corp.") and Aon Global Holdings plc (formerly known as Aon Global Holdings Limited) ("AGH" and, together with Aon Corp., the "Issuers") register hereunder their 5.350% Senior Notes due 2033 and the guarantees thereof (the "Guarantees" and, together with the Notes, the "Securities") by each of Aon plc and Aon Global Limited (formerly known as Aon plc) ("AGL"). The information required by this item in respect of the Securities is incorporated herein by reference to the information set forth under the caption "Description of the Securities" in the Issuers' Prospectus Supplement, dated February 23, 2023, and under the caption "Description of Debt Securities and Guarantees" in the accompanying Prospectus, dated May 12, 2020, filed with the Securities and Exchange Commission (the "Commission") on February 24, 2023 and May 12, 2020, respectively.

**Item 2. Exhibits.** 

---

| | |
|:---|:---|
| **Exhibit<br>No.** | **Description** |
| 4.1 | Amended and Restated Indenture, dated April 1, 2020, among Aon Corp., Aon plc, AGL, AGH and The Bank of New York Mellon Trust Company, N.A., as trustee (the "Trustee") (amending and restating the Indenture, dated December 3, 2018, among Aon Corp., AGL and the Trustee) (incorporated by reference to Exhibit 4.6 to Aon plc's Current Report on Form 8-K filed with the Commission on April 1, 2020) |
| 4.2 | Fifth Indenture Supplement, dated as of February 28, 2023, among Aon Corp., Aon plc, AGL, AGH and the Trustee (incorporated by reference to Exhibit 4.2 to Aon plc's Current Report on Form 8-K filed with the Commission on February 28, 2023) |
| 4.3 | Form of 5.350% Senior Note due 2033 (included in Exhibit 4.2) |

---

------

**SIGNATURE** 

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the registrants have duly caused this registration statement to be signed on their behalf by the undersigned, thereto duly authorized.

---

| | | | |
|:---|:---|:---|:---|
| Dated: February 28, 2023 |  |  |  |
|  | AON PLC | AON PLC | AON PLC |
|  |  | (Registrant) | (Registrant) |
|  | By: | /s/ Paul Hagy | /s/ Paul Hagy |
|  |  | Name: | Paul Hagy |
|  |  | Title: | Treasurer |
|  | AON GLOBAL LIMITED | AON GLOBAL LIMITED | AON GLOBAL LIMITED |
|  |  | (Registrant) | (Registrant) |
|  | By: | /s/ Alistair Boyd | /s/ Alistair Boyd |
|  |  | Name: | Alistair Boyd |
|  |  | Title: | Director |
|  | AON CORPORATION | AON CORPORATION | AON CORPORATION |
|  |  | (Registrant) | (Registrant) |
|  | By: | /s/ Julie Cho | /s/ Julie Cho |
|  |  | Name: | Julie Cho |
|  |  | Title: | Vice President & Secretary |
|  | AON GLOBAL HOLDINGS PLC | AON GLOBAL HOLDINGS PLC | AON GLOBAL HOLDINGS PLC |
|  |  | (Registrant) | (Registrant) |
|  | By: | /s/ Gardner Mugashu | /s/ Gardner Mugashu |
|  |  | Name: | Gardner Mugashu |
|  |  | Title: | Director |

---