Here are the 424B prospectus supplements from Western Asset High Income Opportunity Fund, Inc. (HIO) in our archive over the last 12 months, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 424B covers the supplement that carries the terms of a priced offering, so if you follow HIO and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full HIO filings page.
Western Asset High Income Opportunity Fund Inc. updates its Prospectus and Statement of Additional Information with portfolio manager changes effective January 27, 2026 and a later change effective September 30, 2026.
The Prospectus replaces the prior "Investment Management Team" section with a team-based description and identifies five portfolio managers responsible for day-to-day management: Michael C. Buchanan, Christopher F. Kilpatrick, Walter Kilcullen, John Hwang, and Ryan Kohan. The SAI table (as of September 30, 2025) lists each manager's other accounts and assets managed by category, and shows each manager holds Dollar Range A (none) of Fund securities as of that date.
Effective September 30, 2026, the Prospectus and SAI are further updated to remove the information relating to Christopher Kilpatrick.