Company: KW
Filing Date: 2025-08-08
Form Type: 424B3
Source: 0001408100-25-000150
Chunk: 132

Company: Kennedy-Wilson Holdings, Inc.
Filing Date: 2025-08-08
Form: 424B3
Chunk 132
---
 1934 of the Chief Financial Officer.                       |     | Filed herewith                                                                                                                                     |
| 32.1        |     | Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, of the Chief Executive Officer. |     | Filed herewith                                                                                                                                     |
| 32.2        |     | Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, of the Chief Financial Officer. |     | Filed herewith                                                                                                                                     |

<div align='center'>87</div>

### SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

| Dated: | August 7, 2025 |     | KENNEDY-WILSON HOLDINGS, INC. |     | By: | /S/    JUSTINENBODY          |
|:-------|:---------------|:----|:------------------------------|:----|:----|:-----------------------------|
|        |                |     |                               |     |     | Justin Enbody                |
|        |                |     |                               |     |     | Chief Financial Officer      |
|        |                |     |                               |     |     | (Principal Financial Officer |
|        |                |     |                               |     |     | and Accounting Officer)      |

<div align='center'>88</div>

#### EXHIBIT 31.1

#### Certification of Chief Executive Officer
<div align='center'>RULE 13a-14(a)/15d-14(a) CERTIFICATION PURSUANT TO</div>

## SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002
I, William J. McMorrow, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q for the period ended June 30, 2025 of Kennedy-Wilson Holdings, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial