Company: WEBNF
Filing Date: 2025-06-26
Form Type: 424B5
Source: 0001104659-25-062718
Chunk: 59

Company: WESTPAC BANKING CORP
Filing Date: 2025-06-26
Form: 424B5
Chunk 59
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-1269. Our website is available at www.westpac.com.au. Information contained in or accessible through the websites mentioned in this prospectus supplement does not form part of this prospectus supplement or the accompanying prospectus and all references in this prospectus supplement to websites are inactive textual references and are for information only.

This prospectus supplement is a supplement to the accompanying prospectus contained in a registration statement that we have filed with the SEC relating to the notes to be offered. This prospectus supplement does not contain all of the information we have included in the registration statement, including the accompanying prospectus, and the accompanying exhibits and schedules in accordance with the rules and regulations of the SEC, and we refer you to the omitted information. The statements this prospectus supplement makes pertaining to the content of any contract, agreement or other document that is an exhibit to the registration statement necessarily are summaries of their material provisions and do not describe all exceptions and qualifications contained in those contracts, agreements or documents. You should read those contracts, agreements or documents for information that may be important to you. The registration statement, exhibits and schedules are available through the SEC’s Internet site.

### INCORPORATION OF INFORMATION WE FILE WITH THE SEC
The SEC allows us to incorporate by reference the information we file with them, which means:

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incorporated documents are considered part of this prospectus supplement;

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we can disclose important information to you by referring you to those documents; and

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information that we file with the SEC will automatically update and supersede this prospectus supplement and any previously incorporated information.

We incorporate by reference the documents listed below which were filed with or furnished to the SEC under the Exchange Act:

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our annual report on Form 20-F for the financial year ended September 30, 2024;

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the information contained in Exhibit 1 (2024 Pillar 3 Report) to our report on Form 6-K dated November 4, 2024;

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the information contained in our report on Form 6-K (Retirement of Group Executive, HR), excluding Exhibit 1, dated November 5, 2024;

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the information contained in our report on Form 6-K (Retirement of Non-Executive Directors), excluding Exhibit 1, dated November 5, 2024;

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the exhibits attached to our report on Form 6-K dated November 20, 2024;

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the information contained in our report on Form 6-K, excluding the information set forth in Exhibit 1, dated December