May 29 (Reuters) - Westpac Banking Corp WBC.AX :
* LYN COBLEY RETIRES-WBC.AX
* LYN COBLEY, CHIEF EXECUTIVE OF WESTPAC INSTITUTIONAL BANK, IS RETIRING FROM BANK.
* CURT ZUBER WILL ACT AS CHIEF EXECUTIVE WESTPAC INSTITUTIONAL BANK FROM 1 JULY
* JOANNE DAWSON, CFO, WESTPAC INSTITUTIONAL BANK & TREASURY, WILL ACT AS GROUP TREASURER DURING THIS PERIOD
* AN INTERNATIONAL SEARCH FOR CHIEF EXECUTIVE WESTPAC INSTITUTIONAL BANK WILL BE UNDERTAKEN