# EDGAR Filing Document

**Accession Number:** 0001449433
**File Stem:** 0001104659-25-112820
**Filing Date:** 2025-11
**Character Count:** 41658
**Document Hash:** c4acdf1dcbee453e1ff365fcdccca5e3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-112820.hdr.sgml**: 20251114

**ACCESSION NUMBER**: 0001104659-25-112820

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13G/A

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20251114

**DATE AS OF CHANGE**: 20251114

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ASPEN INSURANCE HOLDINGS LTD
- **CENTRAL INDEX KEY:** 0001267395
- **STANDARD INDUSTRIAL CLASSIFICATION:** FIRE, MARINE & CASUALTY INSURANCE [6331]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 000000000
- **STATE OF INCORPORATION:** D0
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-79396
- **FILM NUMBER:** 251488945

**BUSINESS ADDRESS:**
- **STREET 1:** 141 FRONT STREET
- **CITY:** HAMILTON
- **STATE:** D0
- **ZIP:** HM 19
- **BUSINESS PHONE:** 1 441 297 9301

**MAIL ADDRESS:**
- **STREET 1:** 141 FRONT STREET
- **CITY:** HAMILTON
- **STATE:** D0
- **ZIP:** HM 19
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Apollo Management Holdings GP, LLC
- **CENTRAL INDEX KEY:** 0001449433

**ORGANIZATION NAME:**
- **EIN:** 208351017
- **STATE OF INCORPORATION:** DE

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G/A

**BUSINESS ADDRESS:**
- **STREET 1:** 9 W. 57TH STREET
- **STREET 2:** 43RD FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10019
- **BUSINESS PHONE:** 212-515-3200

**MAIL ADDRESS:**
- **STREET 1:** 9 W. 57TH STREET
- **STREET 2:** 43RD FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10019

## Exhibit 99.1

**EXHIBIT 1**

**JOINT FILING AGREEMENT**

Aspen Insurance Holdings Limited

In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the undersigned hereby confirm the agreement by and among them to the joint filing on behalf of them of the Statement on Schedule 13G and any and all further amendments thereto, with respect to the securities of the above referenced issuer, and that this Agreement be included as an Exhibit to such filing. This Agreement may be executed in any number of counterparts each of which shall be deemed to be an original and all of which together shall be deemed to constitute one and the same Agreement.

IN WITNESS WHEREOF, the undersigned hereby execute this Agreement as of November 14, 2025.

---

| | | |
|:---|:---|:---|
| **Apollo Management Holdings GP, LLC** | **Apollo Management Holdings GP, LLC** | **Apollo Management Holdings GP, LLC** |
| By: | /s/ James Elworth | /s/ James Elworth |
| Name: | James Elworth | James Elworth |
| Title: | Vice President | Vice President |
| **AP Highlands Co-Invest, L.P.** | **AP Highlands Co-Invest, L.P.** | **AP Highlands Co-Invest, L.P.** |
| By: | Apollo Co-Investment Management, LLC, | Apollo Co-Investment Management, LLC, |
|  | its investment manager | its investment manager |
|  | By: | /s/ James Elworth |
|  | Name: | James Elworth |
|  | Title: | Vice President |
| **Apollo Co-Investment Management, LLC** | **Apollo Co-Investment Management, LLC** | **Apollo Co-Investment Management, LLC** |
| By: | /s/ James Elworth | /s/ James Elworth |
| Name: | James Elworth | James Elworth |
| Title: | Vice President | Vice President |
| **Apollo Management, L.P.** | **Apollo Management, L.P.** | **Apollo Management, L.P.** |
| By: | Apollo Management GP, LLC, | Apollo Management GP, LLC, |
|  | its general partner | its general partner |
|  | By: | /s/ James Elworth |
|  | Name: | James Elworth |
|  | Title: | Vice President |

---

---

| | | |
|:---|:---|:---|
| **Apollo Management GP, LLC** | **Apollo Management GP, LLC** | **Apollo Management GP, LLC** |
| By: | /s/ James Elworth | /s/ James Elworth |
| Name: | James Elworth | James Elworth |
| Title: | Vice President | Vice President |
| **Ap HIGHLANDS hOLDINGS, l.P.** | **Ap HIGHLANDS hOLDINGS, l.P.** | **Ap HIGHLANDS hOLDINGS, l.P.** |
| By: | AP Highlands Holdings (GP), LLC, | AP Highlands Holdings (GP), LLC, |
|  | its general partner | its general partner |
|  | By: | /s/ James Elworth |
|  | Name: | James Elworth |
|  | Title: | Vice President |
| **AP Highlands Holdings (GP), LLC** | **AP Highlands Holdings (GP), LLC** | **AP Highlands Holdings (GP), LLC** |
| By: | AIF IX International Holdings, L.P., | AIF IX International Holdings, L.P., |
|  | its managing member | its managing member |
|  | By: | /s/ James Elworth |
|  | Name: | James Elworth |
|  | Title: | Vice President |
| **AIF IX International Holdings, L.P.** | **AIF IX International Holdings, L.P.** | **AIF IX International Holdings, L.P.** |
| By: | Apollo Advisors IX (EH), L.P., | Apollo Advisors IX (EH), L.P., |
|  | its general partner | its general partner |
|  | By: | /s/ James Elworth |
|  | Name: | James Elworth |
|  | Title: | Vice President |
| **APH Holdings, L.P.** | **APH Holdings, L.P.** | **APH Holdings, L.P.** |
| By: | Apollo Principal Holdings A, L.P., | Apollo Principal Holdings A, L.P., |
|  | its limited partner | its limited partner |
|  | By: | /s/ James Elworth |
|  | Name: | James Elworth |
|  | Title: | Vice President |

---

---

| | | |
|:---|:---|:---|
| **Apollo Principal Holdings A, L.P.** | **Apollo Principal Holdings A, L.P.** | **Apollo Principal Holdings A, L.P.** |
| By: | Apollo Principal Holdings A GP, Ltd., | Apollo Principal Holdings A GP, Ltd., |
|  | its general partner | its general partner |
|  | By: | /s/ James Elworth |
|  | Name: | James Elworth |
|  | Title: | Vice President |
| **Apollo Principal Holdings A GP, Ltd.** | **Apollo Principal Holdings A GP, Ltd.** | **Apollo Principal Holdings A GP, Ltd.** |
| By: | APO Corp., | APO Corp., |
|  | its sole shareholder | its sole shareholder |
|  | By: | /s/ James Elworth |
|  | Name: | James Elworth |
|  | Title: | Vice President |
| **Apollo Advisors IX (EH), L.P.** | **Apollo Advisors IX (EH), L.P.** | **Apollo Advisors IX (EH), L.P.** |
| By: | Apollo Advisors IX (EH-GP), LLC, | Apollo Advisors IX (EH-GP), LLC, |
|  | its general partner | its general partner |
|  | By: | /s/ James Elworth |
|  | Name: | James Elworth |
|  | Title: | Vice President |
| **Apollo Advisors IX (EH-GP), LLC** | **Apollo Advisors IX (EH-GP), LLC** | **Apollo Advisors IX (EH-GP), LLC** |
| By: | /s/ James Elworth | /s/ James Elworth |
| Name: | James Elworth | James Elworth |
| Title: | Vice President | Vice President |
| **APOLLO MANAGEMENT HOLDINGS, L.P.** | **APOLLO MANAGEMENT HOLDINGS, L.P.** | **APOLLO MANAGEMENT HOLDINGS, L.P.** |
| By: | Apollo Management Holdings GP, LLC, | Apollo Management Holdings GP, LLC, |
|  | its general partner | its general partner |
|  | By: | /s/ James Elworth |
|  | Name: | James Elworth |
|  | Title: | Vice President |

---

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13G

### Under the Securities Exchange Act of 1934

**(Amendment No. 1)**

**Issuer:** Aspen Insurance Holdings Limited

**Title of Class of Securities:** Class A Ordinary Shares, par value $0.001 per share

**CUSIP Number:** G05384501

**Date of Event Which Requires Filing of this Statement:** 09/30/2025

**Check the appropriate box to designate the rule pursuant to which this Schedule is filed:**

- [ ] Rule 13d-1(b)

- [ ] Rule 13d-1(c)

- [x] Rule 13d-1(d)

---

| 1. | Names of Reporting Persons<br>Apollo Management Holdings GP, LLC | Names of Reporting Persons<br>Apollo Management Holdings GP, LLC |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>75418220.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>75418220.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>75418220.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>75418220.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>82.1% | Percent of Class Represented by Amount in Row (9)<br>82.1% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

---

| 1. | Names of Reporting Persons<br>AP Highlands Co-Invest, L.P. | Names of Reporting Persons<br>AP Highlands Co-Invest, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>E9 | Citizenship or Place of Organization<br>E9 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>28610563.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>28610563.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>28610563.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>28610563.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>31.2% | Percent of Class Represented by Amount in Row (9)<br>31.2% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

---

| 1. | Names of Reporting Persons<br>Apollo Co-Investment Management, LLC | Names of Reporting Persons<br>Apollo Co-Investment Management, LLC |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>28610563.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>28610563.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>28610563.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>28610563.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>31.2% | Percent of Class Represented by Amount in Row (9)<br>31.2% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

---

| 1. | Names of Reporting Persons<br>Apollo Management, L.P. | Names of Reporting Persons<br>Apollo Management, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>28610563.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>28610563.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>28610563.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>28610563.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>31.2% | Percent of Class Represented by Amount in Row (9)<br>31.2% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

---

| 1. | Names of Reporting Persons<br>Apollo Management GP, LLC | Names of Reporting Persons<br>Apollo Management GP, LLC |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>28610563.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>28610563.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>28610563.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>28610563.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>31.2% | Percent of Class Represented by Amount in Row (9)<br>31.2% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

---

| 1. | Names of Reporting Persons<br>AP Highlands Holdings, L.P. | Names of Reporting Persons<br>AP Highlands Holdings, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>E9 | Citizenship or Place of Organization<br>E9 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>46807657.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>46807657.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>46807657.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>46807657.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>51.0% | Percent of Class Represented by Amount in Row (9)<br>51.0% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

---

| 1. | Names of Reporting Persons<br>AP Highlands Holdings (GP), LLC | Names of Reporting Persons<br>AP Highlands Holdings (GP), LLC |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>E9 | Citizenship or Place of Organization<br>E9 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>46807657.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>46807657.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>46807657.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>46807657.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>51.0% | Percent of Class Represented by Amount in Row (9)<br>51.0% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

---

| 1. | Names of Reporting Persons<br>AIF IX International Holdings, L.P. | Names of Reporting Persons<br>AIF IX International Holdings, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>E9 | Citizenship or Place of Organization<br>E9 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>46807657.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>46807657.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>46807657.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>46807657.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>51.0% | Percent of Class Represented by Amount in Row (9)<br>51.0% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

---

| 1. | Names of Reporting Persons<br>APH Holdings, L.P. | Names of Reporting Persons<br>APH Holdings, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>E9 | Citizenship or Place of Organization<br>E9 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>46807657.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>46807657.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>46807657.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>46807657.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>51.0% | Percent of Class Represented by Amount in Row (9)<br>51.0% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

---

| 1. | Names of Reporting Persons<br>Apollo Principal Holdings A, L.P. | Names of Reporting Persons<br>Apollo Principal Holdings A, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>46807657.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>46807657.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>46807657.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>46807657.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>51.0% | Percent of Class Represented by Amount in Row (9)<br>51.0% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

---

| 1. | Names of Reporting Persons<br>Apollo Principal Holdings A GP, Ltd. | Names of Reporting Persons<br>Apollo Principal Holdings A GP, Ltd. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>E9 | Citizenship or Place of Organization<br>E9 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>46807657.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>46807657.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>46807657.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>46807657.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>51.0% | Percent of Class Represented by Amount in Row (9)<br>51.0% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

---

| 1. | Names of Reporting Persons<br>Apollo Advisors IX (EH), L.P. | Names of Reporting Persons<br>Apollo Advisors IX (EH), L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>75418220.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>75418220.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>75418220.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>75418220.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>82.1% | Percent of Class Represented by Amount in Row (9)<br>82.1% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

---

| 1. | Names of Reporting Persons<br>Apollo Advisors IX (EH-GP), LLC | Names of Reporting Persons<br>Apollo Advisors IX (EH-GP), LLC |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>E9 | Citizenship or Place of Organization<br>E9 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>75418220.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>75418220.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>75418220.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>75418220.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [x] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>82.1% | Percent of Class Represented by Amount in Row (9)<br>82.1% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

---

| 1. | Names of Reporting Persons<br>Apollo Management Holdings, L.P. | Names of Reporting Persons<br>Apollo Management Holdings, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>75418220.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>75418220.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>75418220.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>75418220.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>82.1% | Percent of Class Represented by Amount in Row (9)<br>82.1% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

---

**Item 1(a). Name of Issuer:**
Aspen Insurance Holdings Limited

**Item 1(b). Address of Issuer's Principal Executive Offices:**
141 Front Street Hamilton , D0, HM 19

**Item 2(a). Name of Person Filing:**
This statement is filed by (i) AP Highlands Co-Invest, L.P. ("AP Highlands"); (ii) Apollo Co-Investment Management, LLC ("Co-Invest Management"); (iii) Apollo Management, L.P. ("Management LP"); (iv) Apollo Management GP, LLC ("Management GP"); (v) AP Highlands Holdings, L.P. ("AP Highlands LP"); (vi) AP Highlands Holdings (GP), LLC ("AP Highlands (GP)"); (vii) AIF IX International Holdings, L.P. ("AIF IX International"); (viii) APH Holdings, L.P. ("APH Holdings"); (ix) Apollo Principal Holdings A, L.P. ("Principal Holdings A LP"); (x) Apollo Principal Holdings A GP, Ltd. ("Principal Holdings A GP"); (xi) Apollo Advisors IX (EH), L.P. ("Advisors IX EH"); (xii) Apollo Advisors IX (EH-GP), LLC ("Advisors IX (EH-GP)"); (xiii) Apollo Management Holdings, L.P. ("Management Holdings"); and (xiv) Apollo Management Holdings GP, LLC ("Management Holdings GP"). The foregoing are collectively referred to herein as the "Reporting Persons."

AP Highlands and AP Highlands LP each hold securities of the Issuer.

Advisors IX (EH) serves as the general partner of AP Highlands and AIF IX International. Advisors IX (EH-GP) serves as the general partner of Advisors IX (EH). APH Holdings serves as the managing member of Advisors IX (EH-GP). Principal Holdings A LP serves as the limited partner of APH Holdings. Principal Holdings A GP is the general partner of Principal Holdings A LP. Co-Invest Management serves as the investment manager of AP Highlands. Management LP is the sole member of Co-Invest Management. Management GP serves as the general partner of Management LP. AIF IX International serves as the managing member of AP Highlands (GP). AP Highlands (GP) serves as the general partner of AP Highlands LP.

Management Holdings serves as the limited partner of Management LP. Management Holdings GP serves as the general partner of Management Holdings.

**Item 2(b). Address of Principal Business Office:**
The principal office of each of AP Highlands, Advisors IX (EH), AP Highlands LP, AP Highlands (GP), AIF IX International, Advisors IX (EH-GP), APH Holdings and Principal Holdings A GP is c/o Walkers Corporate Limited, 190 Elgin Avenue, George Town, Grand Cayman, KY1-9008, Cayman Islands. The principal office of each of Co-Invest Management, Management LP, Management GP, Management Holdings, Management Holdings GP and Principal Holdings A LP is 9 W. 57th Street, 41st Floor, New York, New York 10019.

**Item 2(c). Citizenship:**
AP Highlands, Advisors IX (EH), AP Highlands LP, AIF IX International and APH Holdings are each a Cayman Islands exempted limited partnership. AP Highlands (GP) and Advisors IX (EH-GP) are each an exempted company incorporated in the Cayman Islands with limited liability. Principal Holdings A GP is a Cayman Islands exempted general partnership. Co-Invest Management, Management GP and Management Holdings GP are each a Delaware limited liability company.  Management LP, Management Holdings and Principal Holdings A LP are each a Delaware limited partnership.

**Item 2(d). Title of Class of Securities:**
Class A Ordinary Shares, par value $0.001 per share

**Item 2(e). CUSIP Number:**
G05384501

**Item 3. If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:**

(a) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

(c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

(d) [ ] Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).

(e) [ ] An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

(f) [ ] An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

(g) [ ] A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h) [ ] A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i) [ ] A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j) [ ] A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), if filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:

(k) [ ] Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).

**Item 4. Ownership:**

**(a) Amount beneficially owned:**

AP Highlands                                   28,610,563
Co-Invest Management                   28,610,563
Management LP                              28,610,563
Management GP                             28,610,563
AP Highlands LP                             46,807,657
AP Highlands (GP)                          46,807,657
AIF IX International                          46,807,657
APH Holdings                                  46,807,657
Principal Holdings A LP                   46,807,657
Principal Holdings A GP                   46,807,657
Advisors IX (EH)                              75,418,220
Advisors IX (EH-GP)                        75,418,220
Management Holdings                     75,418,220
Management Holdings GP               75,418,220
AP Highlands and AP Highlands LP each disclaim beneficial ownership of all shares of Ordinary Shares included in this report other than the shares of Ordinary Shares held of record by such Reporting Person, and the filing of this report shall not be construed as an admission that any such person or entity is the beneficial owner of any such securities for purposes of Section 13(d) or 13(g) of the Securities Exchange Act of 1934, as amended, or for any other purpose. Each other Reporting Person, and Messrs. Scott Kleinman, James Zelter and Marc Rowan, the managers, as well as executive officers, of Principal Holdings A GP and Management Holdings GP, each disclaim beneficial ownership of all shares of Ordinary Shares included in this report, and the filing of this report shall not be construed as an admission that any such person or entity is the beneficial owner of any such securities for purposes of Section 13(d) or 13(g) of the Securities Exchange Act of 1934, as amended, or for any other purpose.

**(b) Percent of class:**

AP Highlands                                    31.2%
Co-Invest Management                    31.2%
Management LP                               31.2%
Management GP                              31.2%
AP Highlands LP                              51.0%
AP Highlands (GP)                           51.0%
AIF IX International                          51.0%
APH Holdings                                   51.0%
Principal Holdings A LP                    51.0%
Principal Holdings A GP                   51.0%
Advisors IX (EH)                              82.1%
Advisors IX (EH-GP)                        82.1%
Management Holdings                     82.1%
Management Holdings GP               82.1%
The percentages are based on 91,838,366 shares of Class A Ordinary Shares outstanding as of June 30, 2025, as disclosed in the Issuer's Form 6-K filed on August 13, 2025.

**(c) Number of shares as to which the person has:**

**(i) Sole power to vote or to direct the vote:**

0 for all Reporting Persons

**(ii) Shared power to vote or to direct the vote:**

AP Highlands                                   28,610,563
Co-Invest Management                   28,610,563
Management LP                              28,610,563
Management GP                             28,610,563
AP Highlands LP                             46,807,657
AP Highlands (GP)                          46,807,657
AIF IX International                          46,807,657
APH Holdings                                  46,807,657
Principal Holdings A LP                   46,807,657
Principal Holdings A GP                   46,807,657
Advisors IX (EH)                              75,418,220
Advisors IX (EH-GP)                        75,418,220
Management Holdings                     75,418,220
Management Holdings GP               75,418,220

**(iii) Sole power to dispose or to direct the disposition of:**

0 for all Reporting Persons

**(iv) Shared power to dispose or to direct the disposition of:**

AP Highlands                                   28,610,563
Co-Invest Management                   28,610,563
Management LP                              28,610,563
Management GP                             28,610,563
AP Highlands LP                             46,807,657
AP Highlands (GP)                          46,807,657
AIF IX International                          46,807,657
APH Holdings                                  46,807,657
Principal Holdings A LP                   46,807,657
Principal Holdings A GP                   46,807,657
Advisors IX (EH)                              75,418,220
Advisors IX (EH-GP)                        75,418,220
Management Holdings                     75,418,220
Management Holdings GP               75,418,220

**Item 5. Ownership of Five Percent or Less of a Class.**

[x] If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following.

**Item 6. Ownership of More than 5 Percent on Behalf of Another Person.**

Not Applicable

**Item 7. Identification and Classification of the Subsidiary**

Not Applicable

**Item 8. Identification and Classification of Members of the Group**

Not Applicable

**Item 9. Notice of Dissolution of Group**

Not Applicable

**Item 10. Certification:**

—

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Apollo Management Holdings GP, LLC**

**Date:** 11/14/2025

**By:** /s/ James Elworth

**Name & Title:** James Elworth, Vice President

**AP Highlands Co-Invest, L.P.**

**Date:** 11/14/2025

**By:** Apollo Co-Investment Management, LLC

**Name & Title:** Investment Manager

**Apollo Co-Investment Management, LLC**

**Date:** 11/14/2025

**By:** /s/ James Elworth

**Name & Title:** James Elworth, Vice President

**Apollo Management, L.P.**

**Date:** 11/14/2025

**By:** Apollo Management GP, LLC

**Name & Title:** General Partner

**Apollo Management GP, LLC**

**Date:** 11/14/2025

**By:** /s/ James Elworth

**Name & Title:** James Elworth, Vice President

**AP Highlands Holdings, L.P.**

**Date:** 11/14/2025

**By:** AP Highlands Holdings (GP), LLC

**Name & Title:** General Partner

**AP Highlands Holdings (GP), LLC**

**Date:** 11/14/2025

**By:** AIF IX International Holdings, L.P.

**Name & Title:** Managing Member

**AIF IX International Holdings, L.P.**

**Date:** 11/14/2025

**By:** Apollo Advisors IX (EH), L.P.

**Name & Title:** General Partner

**APH Holdings, L.P.**

**Date:** 11/14/2025

**By:** Apollo Principal Holdings A, L.P.

**Name & Title:** Limited Partner

**Apollo Principal Holdings A, L.P.**

**Date:** 11/14/2025

**By:** Apollo Principal Holdings A GP, Ltd.

**Name & Title:** General Partner

**Apollo Principal Holdings A GP, Ltd.**

**Date:** 11/14/2025

**By:** APO Corp.

**Name & Title:** Sole Shareholder

**Apollo Advisors IX (EH), L.P.**

**Date:** 11/14/2025

**By:** Apollo Advisors IX (EH-GP), LLC

**Name & Title:** General Partner

**Apollo Advisors IX (EH-GP), LLC**

**Date:** 11/14/2025

**By:** /s/ James Elworth

**Name & Title:** James Elworth, Vice President

**Apollo Management Holdings, L.P.**

**Date:** 11/14/2025

**By:** Apollo Management Holdings GP, LLC

**Name & Title:** General Partner