PIMCO Corporate & Income Opportunity Fund announced on March 25, 2022, the Board of Trustees of PIMCO Corporate & Income Opportunity Fund approved a change to the Fund's fiscal year end from July 31 to June 30, beginning with the current fiscal year, which will now end on June 30, 2022, effective April 1, 2022. The change will be reflected in the Fund's annual report on Form N-CSR for the period August 1, 2021 to June 30, 2022.