Company: KW
Filing Date: 2025-08-08
Form Type: 424B3
Source: 0001408100-25-000150
Chunk: 135

Company: Kennedy-Wilson Holdings, Inc.
Filing Date: 2025-08-08
Form: 424B3
Chunk 135
---
 registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: August 7, 2025

| /s/JUSTIN ENBODY        |
| Justin Enbody           
 Chief Financial Officer |

<div align='center'>90</div>

#### EXHIBIT 32.1

#### Certification of Chief Executive Officer

#### Certification Pursuant to Section 906

#### of the Sarbanes-Oxley Act of 2002
<div align='center'>(18 U.S.C. Section 1350)</div>

In connection with the Quarterly Report of Kennedy-Wilson Holdings, Inc. (the “Company”) on Form 10-Q for the period ended June 30, 2025, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William J. McMorrow, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

In witness whereof, the undersigned has executed and delivered this certificate as of the date set forth opposite his signature below.

| Date: |     | August 7, 2025 |     | /s/ WILLIAM J. MCMORROW |
|:------|:----|:---------------|:----|:------------------------|
|       |