Company: PTY
Filing Date: 2025-06-06
Form Type: 424B5
Source: 0001193125-25-137029
Chunk: 0

Company: PIMCO CORPORATE & INCOME OPPORTUNITY FUND
Filing Date: 2025-06-06
Form: 424B5
Chunk 0
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Filed pursuant to Rule 424(b)(5) File No. 333-274752 PROSPECTUS SUPPLEMENT (To Prospectus dated September 28, 2023) PIMCO Corporate & Income Opportunity Fund Up to $1,000,000,000 Common Shares PIMCO Corporate & Income Opportunity Fund (the “Fund”) has entered into a sales agreement (the “Sales Agreement”) with JonesTrading Institutional Services LLC (“JonesTrading”) relating to its common shares of beneficial interest, par value $0.00001 per share (“Common Shares”) offered by this Prospectus Supplement and the accompanying Prospectus. In accordance with the terms of the Sales Agreement, the Fund may under this Prospectus Supplement offer and sell its Common Shares having an aggregate offering price of up to $1,000,000,000, from time to time through JonesTrading as its agent for the offer and sale of the Common Shares. As of April 30, 2025, in prior “at the market” offerings, the Fund sold through JonesTrading as its agent pursuant to prior registration statements an aggregate of 103,341,725 Common Shares, representing net proceeds to the Fund of $1,561,997,496 after payment of commissions. Under the Investment Company Act of 1940, as amended (the “1940 Act”), the Fund may not sell any Common Shares at a price below the current net asset value (“NAV”) of such Common Shares, exclusive of any distributing commission or discount. The Fund’s investment objective is to seek maximum total return through a combination of current income and capital appreciation. The Fund’s outstanding Common Shares are listed on the New York Stock Exchange (“NYSE”) under the symbol “PTY,” as will be the Common Shares offered in this Prospectus Supplement and the accompanying Prospectus, subject to notice of issuance. The last reported sale price of the Common Shares on April 30, 2025, was $13.72 per Common Share. The NAV of the Common Shares at the close of business on April 30, 2025 was $11.53 per Common Share. Sales of the Common Shares, if any, under this Prospectus Supplement and the accompanying Prospectus may be made in negotiated transactions or transactions that are deemed to be “at the market” as defined in Rule 415 under the Securities Act of 1933, as amended (the “Securities Act”), including sales made directly on the NYSE or sales made to or through a market maker other than on an exchange at prices