Pioneer Diversified High Income Fund, Inc. and Pioneer High Income Fund, Inc. Notification of Final Liquidating Distributions

Each of Pioneer Diversified High Income Fund, Inc. and Pioneer High Income Fund, Inc. announced today that the fund plans a final liquidating distribution on July 21, 2026. Each fund’s final liquidating distribution is anticipated to be paid in cash. Below is the expected distribution to be paid for each fund. All amounts are expressed per common share.

Upon payment of the final liquidating distribution by each fund, all outstanding shares of the fund will be redeemed without the imposition of any redemption or other transaction fees. Each liquidation will generally be a taxable event for stockholders that are subject to U.S. federal income tax. Any stockholder that receives a distribution in a liquidation will generally realize capital gain or loss in an amount equal to the difference between the total amount of the liquidating distribution(s) received and the stockholder’s adjusted basis in the fund shares. Please consult your personal tax advisor with regard to the specific tax consequences of the liquidation.

Pioneer Diversified High Income Fund, Inc. has ceased trading on the NYSE American (NYSEAMER) and Pioneer High Income Fund, Inc. has ceased trading on the New York Stock Exchange (NYSE).

Victory Capital Services, Inc.

Stockholder Inquiries: Please contact your financial advisor.

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