X0101 42003-07-011 0000930429 MONTEREY BAY BANCORP INC MBBC 0000932267 AUSTIN JOSIAH T 1010Common Stock2003-07-014J048435526.3245D0IManaging Member of LLCCommon Stock 2003-07-014J0125026.3245D0IBy Insurance TrustCommon Stock2003-07-014J0125026.3245D0IBy Daughter's trust Common Stock2003-07-014J0187526.3245D0ITrustee for Nephew's trustsCommon Stock2003-07-014J0187526.3245D0ITrustee for Niece's TrustsCommon Stock2003-07-014J05358126.3245D0DStock Option 15.882003-07-014J0150026.3245D1988-08-082006-11-29Common Stock15000DStock disposed of pursuant to the Agreement and Plan of Merger ("the Merger Agreement") by and among Union Bank of California, N.A., UnionBanCal Corporation, Monterey Bay Bank and Monterey Bay Bancorp, Inc. dated April 7, 2003 in exchange for either approximately 0.6269 of a share of UnionBanCal Corporation common stock (having a value of $41.993 average closing price as specified in the Merger Agreement) or approximately $26.3245 per share in cash. This option, which provided for immediate vesting on the date of grant, was cancelled in the merger in exchange for a cash payment representing the difference between approximately $26.3245 and the exercise price of the option. Josiah Austin2003-07-02