Company: PTY
Filing Date: 2025-06-06
Form Type: 424B5
Source: 0001193125-25-137029
Chunk: 270

Company: PIMCO CORPORATE & INCOME OPPORTUNITY FUND
Filing Date: 2025-06-06
Form: 424B5
Chunk 270
---
 & Income Opportunity Fund

PIMCO Corporate & Income Opportunity Fund PROSPECTUS September 28, 2023

A-8 Base Prospectus | PIMCO Corporate & Income Opportunity Fund

CEF002_092823

PIMCO CORPORATE & INCOME OPPORTUNITY FUND Statement of Additional Information September 28, 2023 PIMCO Corporate & Income Opportunity Fund (the “Fund”) is a diversified, closed-end management investment company. Pacific Investment Management Company LLC (“PIMCO” or the “Investment Manager”), 650 Newport Center Drive, Newport Beach, California 92660, is the investment manager to the Fund. This Statement of Additional Information relating to the common shares of beneficial interest, par value $0.00001 per share, of the Fund (the “Common Shares”) is not a prospectus, and should be read in conjunction with the Fund’s prospectus relating thereto dated September 28, 2023 (the “Prospectus”) and any related prospectus supplement. This Statement of Additional Information does not include all information that a prospective investor should consider before purchasing Common Shares, and investors should obtain and read the Prospectus and any related prospectus supplement prior to purchasing such shares. A copy of the Prospectus and any related prospectus supplement or the annual or semi-annual reports for the Fund may be obtained without charge by calling (844) 33-PIMCO (844-337-4626). You may also obtain a copy of the Prospectus or any related prospectus supplement on the website of the Securities and Exchange Commission (the “SEC”) at http://www.sec.gov. Capitalized terms used but not defined in this Statement of Additional Information have the meanings ascribed to them in the Prospectus and any related prospectus supplement.

Table of Contents

| THE FUND                                                                               |   1 |
| INVESTMENT OBJECTIVE AND POLICIES                                                      |   1 |
| INVESTMENT RESTRICTIONS                                                                |  72 |
| Management of the Fund                                                                 |  75 |
| Investment Manager                                                                     |  91 |
| PORTFOLIO TRANSACTIONS AND BROKERAGE                                                   | 102 |
| DISTRIBUTIONS                                                                          | 105 |
| DESCRIPTION OF SHARES                                                                  | 105 |
| ANTI-TAKEOVER AND OTHER PROVISIONS IN THE DECLARATION OF TRUST                         | 106 |
| repurchase of common shares; CONVERSION TO OPEN-END FUND                               | 108 |
| TAXATION                                                                               | 110 |