Prospectus Certification by Investment Company - Form 497J

BlackRock Unconstrained Equity Fund

August 30, 2024

VIA ELECTRONIC FILING

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Attention: Division of Investment Management

      RE: BlackRock Unconstrained Equity Fund

      Post-Effective Amendment No. 40 to the Registration Statement on Form N-1A

(Securities Act File No. 333-124372, Investment Company Act File No. 811-21759)

Ladies and Gentlemen:

Pursuant to Rule 497(j) under the Securities Act of 1933, as amended (the "1933 Act"), BlackRock Unconstrained Equity Fund (the "Registrant") hereby certifies that:

(1) the form of Prospectus and Statement of Additional Information that would have been filed pursuant to Rule 497(c) under the 1933 Act would not have differed from that contained in Post-Effective Amendment No. 40 to the Registration Statement on Form N-1A of the Registrant; and

(2) the text of Post-Effective Amendment No. 40 to the Registration Statement on Form N-1A of the Registrant was filed electronically with the Securities and Exchange Commission on August 28, 2024.

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