X0201 4 2003-08-04 0 0001190935 PIMCO CORPORATE OPPORTUNITY FUND NCZ 0001163368 PACIFIC INVESTMENT MANAGEMENT CO LLC 0 0 0 1 Investment Adviser Common Shares 2003-08-04 4 A 0 600 15.4 A 38530 I Deferred Compensation Plan Common Shares 2003-08-04 4 A 0 700 15.45 A 32930 I Deferred Compensation Plan Common Shares 2003-08-04 4 A 0 1200 15.45 A 40430 I Deferred Compensation Plan The rabbi trust established in connection with the Executive Deferred Compensation Plan of Allianz Dresdner Asset Management of America LLC acquired common shares of beneficial interestin PIMCO Corporate Opportunity Fund for the Compensation Deferral Account maintained for the benefit of David C. Hinman after a contribution to the plan was made by Pacific Investment Management Company LLC, a subsidiary of Allianz Dresdner Asset Management of America LLC. The shares are held in the name of the Allianz Dresdner Asset Management Plan of America. Mr. Hinman will file a separate Form 4 relating to the acquisition by the trust of the common shares of PIMCO Corporate Opportunity Fund for the Compensation Deferral Account maintained for his benefit. Pacific Investment Management Company LLC is the investment adviser of the Issuer. Francis C. Poli, Attorney in fact for Pacific Investment Management Company LLC 2003-08-04