Blackrock Funds II

12/16/2025 | Press release | Distributed by Public on 12/16/2025 05:00

Prospectus by Investment Company (Form 497)

BLACKROCK FUNDS II

BlackRock Retirement Income 2030 Fund

(the "Fund")

Supplement dated December 16, 2025 to the Summary Prospectuses and the

Prospectus of the Fund each dated April 30, 2025, as supplemented to date

Effective December 31, 2025, the following changes are made to the Fund's Summary Prospectuses and Prospectus, as applicable:

The section of the Summary Prospectuses entitled "Key Facts About BlackRock Retirement Income 2030 Fund - Portfolio Manager" and the section of the Prospectus entitled "Fund Overview - Key Facts About BlackRock Retirement Income 2030 Fund - Portfolio Manager" are deleted in their entirety and replaced with the following:

Portfolio Manager

Portfolio Manager Portfolio Manager of
the Fund Since
Title
Michael Pensky, CFA 2020 Managing Director of BlackRock, Inc.
Justin Christofel, CFA 2023 Managing Director of BlackRock, Inc.
Louis Arranz, CFA 2025 Director of BlackRock, Inc.

The section of the Prospectus entitled "Details About the Fund - How the Fund Invests - About the Portfolio Management Team of the Fund" is deleted in its entirety and replaced with the following:

ABOUT THE PORTFOLIO MANAGEMENT TEAM OF THE FUND
The Fund is managed by a team of financial professionals. Michael Pensky, CFA, Justin Christofel, CFA and Louis Arranz, CFA, are the portfolio managers and are jointly and primarily responsible for the day-to-day management of the Fund. Please see "Management of the Fund - Portfolio Manager Information" for additional information about the portfolio managers.

The section of the Prospectus entitled "Management of the Fund - Portfolio Manager Information" is deleted in its entirety and replaced with the following:

Information regarding the portfolio managers of the Fund is set forth below. Further information regarding the portfolio managers, including other accounts managed, compensation, ownership of Fund shares and possible conflicts of interest, is available in the SAI.

Portfolio Manager Primary Role Since Title and Recent Biography
Michael Pensky, CFA Jointly and primarily responsible for the day-to-day management of the Fund's portfolio, including setting the Fund's overall investment strategy and overseeing the management of the Fund. 2020 Managing Director of BlackRock, Inc. since 2021; Director of BlackRock, Inc. from 2018 through 2020.
Justin Christofel, CFA Jointly and primarily responsible for the day-to-day management of the Fund's portfolio, including setting the Fund's overall investment strategy and overseeing the management of the Fund. 2023 Managing Director of BlackRock, Inc. since 2016.
Louis Arranz, CFA Jointly and primarily responsible for the day-to-day management of the Fund's portfolio, including setting the Fund's overall investment strategy and overseeing the management of the Fund. 2025 Director of BlackRock, Inc. since 2023; Vice President of BlackRock, Inc. from 2020 to 2022.

Shareholders should retain this Supplement for future reference.

Blackrock Funds II published this content on December 16, 2025, and is solely responsible for the information contained herein. Distributed via Edgar on December 16, 2025 at 11:00 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]