LONDON–(BUSINESS WIRE)– As Agent Bank, please be advised of the following rate determined on: 10/27/2026 Issue ¦ Westpac Banking Corporation – Series 1518 USD15,000,000 FRN due August 2028 ISIN Number ¦ XS2662406607 ISIN Reference ¦ 266240660 Issue Nomin USD ¦ 15000000 Period ¦ 8/4/2026 to 11/3/2026 Payment Date 11/3/2026 Number of Days ¦ 91 Rate ¦ 4.69466 Denomination USD ¦ 200000 ¦ 15000000 ¦ Amount Payable per Denomination ¦ 2373.41 ¦ 178005.75 ¦ Bank of New Yo