Company: PTY
Filing Date: 2025-06-06
Form Type: 424B5
Source: 0001193125-25-137029
Chunk: 496

Company: PIMCO CORPORATE & INCOME OPPORTUNITY FUND
Filing Date: 2025-06-06
Form: 424B5
Chunk 496
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 request and without charge by writing to the Fund at c/o Pacific Investment Management Company LLC, 1633 Broadway, New York, New York 10019. INCORPORATION BY REFERENCE As noted above, this Statement of Additional Information is part of a registration statement filed with the SEC. The Fund is permitted to “incorporate by reference” the information filed with the SEC, which means that the Fund can disclose important information to you by referring you to those documents. In addition, all documents subsequently filed by the Fund pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) (excluding any information furnished rather than filed) prior to the termination of the offering shall be deemed to be incorporated by reference into the prospectus and this Statement of Additional Information. The information incorporated by reference is an important part of this this Statement of Additional Information. Any statement in a document incorporated by reference into this Statement of Additional Information will be deemed to be automatically modified or superseded to the extent a statement contained in (1) this Statement of Additional Information or (2) any other subsequently filed document that is incorporated by reference into this Statement of Additional Information modifies or supersedes such statement. The documents incorporated by reference herein include: • the Fund’s Prospectus, dated September 28, 2023, filed with this Statement of Additional Information; • the Fund’s Annual Report on Form N-CSR , filed on September 1, 2023; • the Fund’s Description of Common Shares on Form 8-A , filed on November 25, 2002. You may obtain copies of any information incorporated by reference into this Statement of Additional Information, at no charge, by calling toll-free (844)-337-4626 or by writing to the Fund at c/o Pacific Investment Management Company LLC, 1633 Broadway, New York, New York 10019. The Fund’s periodic reports filed pursuant to Section 30(b)(2) of the 1940 Act and Sections 13 and 15(d) of the Exchange Act, as well as the Prospectus and this Statement of Additional Information, are available on the Fund’s website http://www.pimco.com/prospectuses. In addition, the SEC maintains a website at www.sec.gov, free of charge that contains these reports, the Fund’s proxy and information statements, and other information relating to the Fund.

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Appendix A Procedures for Shareholders