BLACKROCK MUNIYIELD FUND, INC. — Director's Dealing 2011

Aug 10, 2011

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: BLACKROCK MUNIYIELD FUND INC (MYD)
CIK: 0000879361
Period of Report: 2011-07-31

Reporting Person: UBS AG (10% Owner)

Holdings (Non-Derivative)

Security	Shares	Ownership
Auction Preferred Stock	134	Indirect

Footnotes

F1: This Statement is filed jointly by UBS AG for the benefit and on behalf of UBS Securities LLC and UBS Financial Services Inc., two-wholly owned subsidiaries of UBS AG to which UBS AG has delegated portions of its performance obligations with respect to the Auction Rate Securities Rights issued by UBS AG to certain clients and pursuant to which the securities reported herein have been purchased from such clients.

F2: Pursuant to the Global Relief Letter referred to below, this filing reports holdings of the Series of Auction Preferred Stock identified in Item 1 of this Table I on an aggregated basis.

F3: (Cusip No 09253W203
09253W302
09253W401
09253W500
09253W609
09253W708
09253W807)