Liquidation: BLACKROCK BOND FUND, INC.

Form Type: 497

Filing Date: 2025-06-13

Corporate Action: Liquidation

Type: New

Accession Number: 000119312525140736

Filing Summary: On June 5, 2025, the Board of Directors of BlackRock Bond Fund, Inc. approved a proposal to close the BlackRock Sustainable Total Return Fund to new and subsequent investments and to liquidate the Fund. Effective 4:00 P.M. (Eastern time) on September 12, 2025, the Fund will cease to accept orders from new or existing shareholders for the purchase of Fund shares. The Liquidation Date is set for September 19, 2025, at which point all assets of the Fund will be completely liquidated. Shareholders holding shares on the Liquidation Date will have their shares redeemed at the net asset value per share. Post-liquidation, the Fund will be terminated as a series of the Corporation. Prior to this date, shareholders can redeem their shares or exchange them for shares of other mutual funds advised by BlackRock Advisors, LLC or its affiliates. The Fund may alter its investment objective and strategies in preparation for liquidation. Shareholders are advised to consult tax advisers regarding their individual tax situations in light of the impending liquidation.

Form Type: 497K

Filing Date: 2025-06-13

Corporate Action: Liquidation

Type: New

Accession Number: 000119312525140742

Filing Summary: On June 5, 2025, the Board of Directors of BlackRock Bond Fund, Inc. approved a proposal to close the BlackRock Sustainable Total Return Fund to new and subsequent investments and to liquidate the Fund. Effective September 12, 2025, at 4:00 P.M. (Eastern time), the Fund will not accept orders for purchases of shares from new investors or existing shareholders. On or about September 19, 2025, the Fund's assets will be completely liquidated, and shares held by shareholders on the Liquidation Date will be redeemed at the net asset value per share when the Fund is terminated. Shareholders can redeem or exchange their shares into another mutual fund advised by BlackRock Advisors, LLC or its affiliates before the Liquidation Date. Additionally, the Fund may deviate from its investment objective and strategies in preparation for liquidation. Shareholders are advised to consult with tax advisers regarding the liquidation's impact on their tax situation and to keep the Supplement for future reference.