Company PIMCO Corporate & Income Opportunity Fund

PIMCO Corporate & Income Opportunity Fund (the Fund) is a closed-end management investment company. The Fund’s primary investment objective is to seek high current income, with capital preservation and capital appreciation as secondary objectives. The Fund is focused on investing approximately 80% of its total assets in a combination of corporate debt obligations of varying maturities, other corporate income-producing securities, and income-producing securities of non-corporate issuers, such as the United States Government securities, municipal securities, and mortgage-backed and other asset-backed securities issued on a public or private basis. The Fund invests approximately 25% of its total assets in corporate debt obligations and other corporate income-producing securities. It invests in various sectors, including technology, banks, healthcare, wirelines, automotive, oilfield services, and others. Pacific Investment Management Company LLC serves as the Fund's investment manager.