Blackrock Funds
09/30/2025 | Press release | Distributed by Public on 09/30/2025 09:55
Prospectus Certification by Investment Company (Form 497J)
September 30, 2025
VIA ELECTRONIC FILING
Securities and Exchange Commission
100 F Street, N.E.
Washington, D.C. 20549
Attention: Division of Investment Management
RE: BlackRock Health Sciences Opportunities Portfolio, a series of BlackRock FundsSM
Post-Effective Amendment No. 1281 to the Registration Statement on Form N-1A
(Securities Act File No. 33-26305, Investment Company Act File No. 811-05742)
Ladies and Gentlemen:
Pursuant to Rule 497(j) under the Securities Act of 1933, as amended (the "1933 Act"), BlackRock FundsSM (the "Registrant"), on behalf of its series BlackRock Health Sciences Opportunities Portfolio (the "Fund"), hereby certifies that:
(1) the form of Prospectuses 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. 1281 to the Registration Statement on Form N-1A of the Registrant with respect to the Fund; and
(2) the text of Post-Effective Amendment No. 1281 to the Registration Statement on Form N-1A of the Registrant with respect to the Fund was filed electronically with the Securities and Exchange Commission on September 25, 2025.
| Sincerely, |
| BlackRock FundsSM |
| /s/ Janey Ahn |
| Janey Ahn |
| Secretary of the Registrant |
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